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  • Amidoxime Modified Polymers of Intrinsic Microporosity (PIM-1); A Versatile Adsorbent for Efficient Removal of Charged Dyes; Equilibrium, Kinetic and Thermodynamic Studies
    J. Polym. Environ. (IF 2.765) Pub Date : 2020-01-27
    Bekir Satilmis

    Abstract Polymers of Intrinsic Microporosity (PIMs) are recognized as promising polymers for active separation of organic pollutants. These highly porous and solution-processable polymers could be tailored to remove specific targets from an aqueous system. In this study, PIM-1 powder was modified to amidoxime PIM-1 powder and adsorption of charged dyes which are Methylene Blue (MB, cationic) and Methyl Orange (MO, anionic) from an aqueous system was explored to evaluate the influence of contact time, initial concentration, solution pH and temperature on the removal of dyes. The adsorption reached the equilibrium within three hours in a batch adsorption process for both dyes. Experimental adsorption capacity (qe, exp) of Amidoxime PIM-1 was found as 79.8 mg g−1 and 69.8 mg g−1 for MO and MB, respectively at pH 6 and 298 K. The Amidoxime PIM-1 was also able to remove a mixture of anionic and cationic dyes simultaneously from aqueous system. The removal ability is dependent on the solution pH and the selectivity can be tuned by shifting solution pH such as at low pH (pH 3) anionic dye adsorption is more favourable, while at high pH (pH 10) cationic dye adsorption is preferable. Equilibrium data acquired from batch adsorption experiments have been examined by four two-parameter (Langmuir, Freundlich, Temkin and Dubinin–Radushkevich), four three-parameter (Redlich–Peterson, Sips, Khan and Liu) isotherm models, and by kinetic models such as the pseudo-first-order, the pseudo-second-order, Elovich equation and intraparticle diffusion using non-linear regression technique. Combination of several errors analysis techniques was applied to find the best fitting isotherm and kinetic models. Liu isotherm was the best to define the experimental data and the maximum adsorption capacities (qm) were calculated as 86.7 mg g−1 and 81.3 mg g−1 for MO and MB, respectively at pH 6 and 298 K. Adsorption data have the best consistency with the pseudo-second-order kinetic model. Furthermore, thermodynamic parameters were determined and the experiments suggested that the adsorption of MB and MO onto Amidoxime PIM-1 is a physical, spontaneous and exothermic. Graphic Abstract

    更新日期:2020-01-27
  • Evaluating the effectiveness of integrating the environmental impact assessment and mine closure planning processes
    Environ. Impact Assess. Rev. (IF 3.749) Pub Date : 2020-01-27
    Rebecca Getty; Angus Morrison-Saunders

    Integration of environmental assessment tools has long been promoted as best practice with the potential to bring environmental benefits. In this research, we set out to evaluate the effectiveness of integration of environmental impact assessment (EIA) and mine closure planning using a simple effectiveness criteria framework, applied to current regulatory provisions and practices in Western Australia. The effectiveness criteria for the integration of EIA and mine closure planning, compiled from existing reviews of integration and effectiveness concepts in the impact assessment literature, considers procedural, transactive, substantive effectiveness and overall process legitimacy. Data analysis consisted of a literature review, examination of regulatory and guidance material and interviews with 12 experienced EIA and/or mine closure practitioners with an industry or regulatory focus. The results provide strong, positive examples of procedural, transactive and substantive effectiveness due to the integrated framework. These include behavioural changes, improved knowledge and learning and better provision for closure at an early stage of mine planning. A trajectory of improvement was noted by everybody interviewed. However, a key driver for effectiveness is the enthusiasm of key facilitations, and tension exists due to the different motivations of the two lead regulatory agencies which poses a challenge for the integrated framework. While it can reasonably be argued that the effectiveness of early mine closure planning cannot yet be realised, due to a paucity of completely closed mines in Australia this study nevertheless demonstrates clear benefits and opportunities result from early stage integration of EIA with mine closure planning.

    更新日期:2020-01-27
  • Correction to: From legacy pollutants to emerging contaminants: recent inputs from the 2018 conference of EcoBIM network
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Michel Auffret, Jérôme Cachot, Richard Saint-Louis

    The original publication of this paper contains a mistake.

    更新日期:2020-01-27
  • Source apportionment of metallic elements in urban atmospheric particulate matter and assessment of its water-soluble fraction toxicity
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Darlan Daniel Alves, Roberta Plangg Riegel, Cláudia Regina Klauck, Alessa Maria Ceratti, Jéssica Hansen, Laura Meneguzzi Cansi, Simone Andrea Pozza, Daniela Müller de Quevedo, Daniela Montanari Migliavacca Osório

    Abstract Clean air is essential for the maintenance of human life and environmental balance. The atmospheric particulate matter (PM) is one of the main air pollutants and is characterized by the heterogeneity of its composition, being able to accumulate numerous components, such as metallic elements, which contribute to increasing its toxicity. The objectives of this study were to assess of the air quality in two urban environments, to carry out the source apportionment of the metallic elements Al, Ba, Cd, Pb, Cu, Cr, Fe, Mn, Ni, and Zn in the PM2.5 and PM2.5–10, and evaluate the toxicity of PM2.5 and PM2.5–10 water-soluble fractions using Lactuca sativa as bioindicator. The collection of PM2.5 and PM2.5–10 was performed using a dichotomous stacked filter unit (SFU) sampler. The source apportionment was carried out using the EPA PMF 5.0 receptor model and the toxicity tests followed the EPA Ecological Effects Test Guidelines OPPTS 850.4200: Seed Germination/Root Elongation Toxicity Test. The source apportionment demonstrated that vehicular and industrial emissions are the main anthropogenic sources contributing to the concentration of metallic elements to thePM2.5 and PM2.5–10. The studied sites did not show statistically significant differences in terms of phytotoxicity to the Lactuca sativa seeds. Cd and Cu were identified as the main metallic elements which able to cause negative effects on seed germination and root elongation, respectively. The presence of cadmium and copper in the atmospheric particulate matter is one of the main causes of the phytotoxicity affecting the Lactuca sativa seed germination and root elongation.

    更新日期:2020-01-27
  • Phytoremediation of heavy metals by four aquatic macrophytes and their potential use as contamination indicators: a comparative assessment
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Ebrahem M. Eid, Tarek M. Galal, Nasser A. Sewelam, Nasser I. Talha, Samy M. Abdallah

    Abstract The present study estimated the ability of four aquatic macrophytes (Eichhornia crassipes (Mart.) Solms, Ludwigia stolonifera (Guill. & Perr.) P.H. Raven, Echinochloa stagnina (Retz.) P. Beauv. and Phragmites australis (Cav.) Trin. ex Steud.) to accumulate Cd, Ni and Pb and their use for indicating and phytoremediating these metals in contaminated wetlands. Three sites at five locations in the Kitchener Drain in Gharbia and Kafr El-Sheikh Governorates (Egypt) were selected for plant, water and sediment sampling. The water in the Kitchener Drain was polluted with Cd, while Pb and Ni were far below the maximum level of Pb and Ni in the irrigation water. In comparison to the other species, P. australis accumulated the highest concentrations of Cd and Ni, while E. crassipes accumulated the highest concentration of Pb in its tissues. The four species had bioaccumulation factors (BAFs) greater than one, while their translocation factors (TFs) were less than 1 for most heavy metals, except Cd in the leaf and stem of E. stagnina and L. stolonifera, respectively, and Ni in the stem and leaf of E. stagnina. The BAF and TF results indicated that the studied species are suitable for phytostabilizing the studied heavy metals, except Ni in E. stagnina and Cd in L. stolonifera, which are suitable for phytoextracting these metals. Significant positive correlations were found between the investigated heavy metals in the water or sediment and the plant tissues. Their high BAFs, with significant proportional correlations, supported the potential of these species to serve as bioindicators and biomonitors of heavy metals in general and in the investigated metals specifically.

    更新日期:2020-01-27
  • Characteristics of water-soluble organic acids in PM 2.5 during haze and Chinese Spring Festival in winter of Jinan, China: concentrations, formations, and source apportionments
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Shuting Tang, Xuehua Zhou, Jingzhu Zhang, Likun Xue, Yuanyuan Luo, Jie Song, Wenxing Wang

    Abstract PM2.5 aerosols from Jinan (36°256′N, 117°106′E) in the North China Plain region were investigated for water-soluble organic acids (WSOAs, i.e., oxalic acid, formic acid, acetic acid, methanesulfonic acid (MSA), and lactic acid) during 30 December 2016 to 21 February 2017. The average PM2.5 concentration was 168.77 μg/m3 with about 90.74% samples beyond the National Ambient Air Quality (NAAQ) standards (Grade II). The total concentration of the measured WSOAs averaged at 1.34 μg/m3, contributing to 0.80% of PM2.5 mass. In the observation, acetic acid was the most abundant WSOA, followed by oxalic acid, lactic acid, formic acid, and MSA. During the period, serious haze events frequently happened. The average concentrations of PM2.5 and every WSOA species were higher in haze than those in non-haze. The correlations among species suggested that WSOAs in haze had complicated sources and secondary pathways, especially aqueous-phase reactions which played an important role on WSOAs. The concentrations of WSOAs declined in the Spring Festival compared with those in the non-Spring Festival due to holiday effect. Fireworks burning during the Spring Festival had different influences on WSOAs with slight increases for acetic acid and lactic acid. Five source factors were identified by positive matrix factorization (PMF) model for five WSOAs, respectively, and the results revealed that secondary reactions were the main sources of WSOAs in haze.

    更新日期:2020-01-27
  • Assessing dietary exposure risk to neonicotinoid residues among preschool children in regions of Taiwan
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Min-Pei Ling, Huai-An Hsiao, Szu-Chieh Chen, Wei-Yu Chen, Wei-Chun Chou, Yi-Jun Lin, Shu-Han You, Ying-Fei Yang, Hsing-Chieh Lin, Chi-Yun Chen, Tien-Hsuan Lu, Chung-Min Liao

    Abstract Neonicotinoids (NEOs) are a class of pesticides widely used worldwide. This study analyzed post-cooking residues of NEO pesticides and assessed their potential health risks for preschool children (0–6 years old) by conducting a total diet study (TDS). It involved food sampling, preparation, analysis of pesticide residues, estimation of food consumption data, and assessment of food safety risks. Food sampling was conducted between March and June 2015. A total of 128 food samples were obtained from 4 parts of Taiwan. After the food had been prepared, the 128 samples were aggregated into 32 composite food items and the NEO residues analyzed. Acetamiprid had the highest detection rate of the NEO residues (59.4%), and the concentrations ranged from not detected to 80.5 μg/kg. The estimated daily intake (EDI) of NEO residues among preschool children was found to be lower than the adjusted acceptable daily intake (ADI) even for highly exposed groups. The results showed that NEO pesticides were primarily detected in preserved fruits, cherry tomato, rape, bell fruit, and baby bok choy. The main health risk posed by detected NEO residues at high consumption rates for preschool children was attributed to acetamiprid (34.20 %ADI) and imidacloprid (23.69 %ADI), respectively. Therefore, this research implicates that the present level of NEO residues in the diets for preschool children in Taiwan does not exceed 100 %ADI.

    更新日期:2020-01-27
  • Toxicity of multi-wall carbon nanotubes inhalation on the brain of rats
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Fatemeh Samiei, Farshad Hosseini Shirazi, Parvaneh Naserzadeh, Faezeh Dousti, Enayatollah Seydi, Jalal Pourahmad

    Abstract This study was designed to investigate the brain toxicity following the respiratory contact with multi-wall carbon nanotubes (MWCNTs) in male Wistar rats. Rats were exposed to 5 mg/m3 MWCNT aerosol in different sizes and purities for 5 h/day, 5 days/week for 2 weeks in a whole-body exposure chamber. After 2-week exposure, mitochondrial isolation was performed from different parts of rat brain (hippocampus, frontal cortex, and cerebellum) and parameters of mitochondrial toxicity including mitochondrial succinate dehydrogenase (SDH) activity, generation of reactive oxygen species (ROS), mitochondrial membrane potential (MMP) collapse, mitochondrial swelling, and cytochrome c release, ATP level, mitochondrial GSH, and lipid peroxidation were evaluated. Our results demonstrated that MWCNTs with different characteristics, in size and purity, significantly (P < 0.05) decreased SDH activity, GSH, and ATP level, and increased mitochondrial ROS production, lipid peroxidation, mitochondrial swelling, MMP collapse, and cytochrome c release in the brain mitochondria. In conclusion, we suggested that MWCNTs with different characteristics, in size and purity, induce damage in varying degrees on the mitochondrial respiratory chain and increase mitochondrial ROS formation in different parts of rat brain (hippocampus, frontal cortex, and cerebellum).

    更新日期:2020-01-27
  • Greenhouse gas emissions from advanced oxidation processes in the degradation of bisphenol A: a comparative study of the H 2 O 2 /UV, TiO 2 /UV, and ozonation processes
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Young-Min Kang, Tae-Kyoung Kim, Moon-Kyung Kim, Kyung-Duk Zoh

    Abstract To estimate greenhouse gas (GHG) emissions and degradation rate constants (kobs) from H2O2/UV-C, TiO2/UV-C, and ozonation processes in the degradation of bisphenol A (BPA), the laboratory scale experiments were conducted. In the H2O2/UV-C process, the fastest degradation rate constant (kobs = 0.353 min−1) was observed at 4 mM of H2O2, while the minimum GHG emission was achieved at 3 mM of H2O2. In the TiO2/UV-C process, the fastest rate constant (kobs = 0.126 min−1) was achieved at 2000 mg/L of TiO2, while the minimum GHG emission was observed at 400 mg/L of TiO2. In the ozonation process, GHG emissions were minimal at 5 mg/L of O3, but the degradation rate constant kept on increasing as the O3 concentration increased. There were three major types of GHG emissions in the advanced oxidation processes (AOPs). In the ozonation process, most of the GHG emissions were generated by electricity consumption. TiO2/UV-C process accounted for a significant portion of the GHGs generated by the use of chemicals. Finally, the H2O2/UV-C process produced similar GHG emissions from both chemical inputs and electricity consumption. The carbon footprint calculation revealed that for the treatment of 1 m3 of water contaminated with 0.04 mM BPA, the H2O2/UV-C process had the smallest carbon footprint (0.565 kg CO2 eq/m3), followed by the TiO2/UV-C process (3.445 kg CO2 eq/m3) and the ozonation process (3.897 kg CO2 eq/m3). Our results imply that the increase in removal rate constant might not be the optimal parameter for reducing GHG emissions during the application of these processes. Graphical abstract .

    更新日期:2020-01-27
  • Application of magnetic coagulant based on fractionated protein of Moringa oleifera Lam. seeds for aqueous solutions treatment containing synthetic dyes
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Isabela Maria Reck, Aline Takaoka Alves Baptista, Rebecca Manesco Paixão, Rosangela Bergamasco, Marcelo Fernandes Vieira, Angélica Marquetotti Salcedo Vieira

    Abstract The aim of the present study was to evaluate the efficiency of a new magnetic coagulant, obtained from Moringa oleifera seeds protein functionalized with iron oxide nanoparticles to remove four anionic synthetic dyes with coagulation/flocculation assays followed by magnetic sedimentation. The results showed that the presence of a magnetic field during sedimentation considerably accelerates the separation and increases the dye removal efficiency. Amaranth dye removal increased from 45 to 86% and Sunset Yellow from 15 to 69% with the presence of magnetic field, while Reactive Black 5 and Brilliant Blue reached 94% and 52% removal, respectively. For AM and SY dyes, the best protein concentration is 150 mg L−1, for RB5 dye is 115 mg L−1, and for BB dye is 75 mg L−1. The sedimentation time decreased from 30 to 5 min with magnetic sedimentation. The residual value of AM dye decreased from 10.76 mg L−1 to approximately 2.71 mg L−1, and with SY the residual concentration decreased from approximately 16.79 mg L−1 to 6.36 mg L−1. The removal of BB and RB5 dyes reached an approximate final value of 48.2 mg L−1 (52%) and 1.18 mg L−1 (94%).

    更新日期:2020-01-27
  • Effects of botanical pesticide itol A against the tobacco cutworm, Spodoptera litura (Fab.)
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-27
    Si-Quan Ling, Bo He, Dong-Qiang Zeng, Wen-Wei Tang

    Abstract Itol A, an isoryanodane diterpene derived from Itoa orientalis Hemsl. (Flacourtiaceae), is a potential plant-based insecticide. However, the effect of itol A on the tobacco cutworm [Spodoptera litura (Fab.) (Lepidoptera: Noctuidae)], an important and widely distributed insect pest, remains unclear. In this study, the toxicity and inhibitory potency of itol A on S. litura were evaluated. The results indicated that itol A exhibited larvicidal activity against the third instar larvae in a concentration-dependent manner (LC50 875.48 mg/L at 96 h). Antifeedant activity also was observed, and the 24-h AFC50 values were 562.05 and 81.47 mg/L in the no-choice and choice experiments, respectively. The insect growth was inhibited after treatment of itol A, as reflected by long developmental periods, low-quality pupae, and various abnormalities. Itol A exerted ovicidal effect on S. litura, with an estimated LC50 of 759.30 mg/L. Itol A deterred oviposition in the choice experiment (ODI50 909.60 mg/L). Besides, the activities of α-amylase, general protease, superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) were inhibited after itol A treatment over time compared to controls, which may be a relevant mechanism underlying the toxicity of itol A toward S. litura. However, the activities of lipase, carboxylesterase (CarE), glutathione S-transferase (GST), and cytochrome P450 monooxygenase (P450) were increased. Taken together, these results suggest that itol A could be a good botanical pesticide to reduce the population of S. litura in integrated pest management programs.

    更新日期:2020-01-27
  • Simultaneous extraction of antibiotic and estrogen from animal blood serum using aqueous two-phase systems as predictor of environmental impact
    Environ. Sci. Pollut. Res. (IF 2.914) Pub Date : 2020-01-25
    Carlos Díaz-Quiroz, Juan Francisco Hernández-Chávez, Gabriela Ulloa-Mercado, Francisco Deive, Pablo Gortáres-Moroyoqui, Ramón Miguel Molina-Barrios

    Abstract Efficient analytical methods are required for optimizing dosage of veterinary antibiotics and hormones in order to reduce toxicity and antimicrobial resistance in the environment. Thus, the objective of this work was to develop a rapid and low-cost method for determination of hormone estradiol and antibiotic chlortetracycline in bovine and porcine blood serum by aqueous two-phase system (ATPS) extraction and capillary electrophoresis quantification. ATPS based on ionic liquid cholinium alaninate and citrate salt along with mixtures of protic and aprotic polar solvents were evaluated in terms of recovery of extraction (%R). The liquid-liquid equilibrium, phase diagrams, and tie lines are discussed. Antibiotic migrated to solvent-rich phase (R ≈ 89.0%) to all systems. Estradiol migrates to ionic liquid-rich phase; however, addition of 10% methanol changed partition to solvent-rich phase (R ≈ 89.7%). The method has high recovery and cleanliness, is cost-efficient, scalable, and hence is adequate for screening of antibiotics and hormones tested in animal blood serum for dosage optimization and to predict their environment.

    更新日期:2020-01-27
  • Evaluation of the effectiveness of a portable air cleaner in mitigating indoor human exposure to cooking-derived airborne particles
    Environ. Res. (IF 5.026) Pub Date : 2020-01-27
    Ruchi Sharma; Rajasekhar Balasubramanian

    Gas cooking is an important source of airborne particulate matter (PM) indoors. Exposure to cooking-derived PM can lead to adverse human health impacts on non-smokers, especially in poorly-ventilated residential homes. Most of the previous studies on gas cooking emissions mainly focused on fine particles (PM2.5) with little information on their size-fractionation. Moreover, studies dealing with mitigation of indoor human exposure to cooking-derived PM are currently sparse. Therefore, a systematic study was conducted to investigate the characteristics of PM2.5 and size-fractionated PM derived from five commonly used cooking methods, namely, steaming, boiling, stir-frying, pan-frying and deep-frying in a poorly ventilated domestic kitchen under controlled experimental conditions. Additionally, an indoor portable air cleaner was employed as a mitigation device to capture cooking-derived PM and improve indoor air quality (IAQ). Results revealed that the oil-based deep-frying cooking released the highest airborne particles which were about 170 folds higher compared to the baseline levels for PM2.5 mass concentrations. The use of the air cleaner showed a statistically significant (p < 0.05) reduction in the indoor PM2.5 levels. Moreover, PM<0.25 (particles with diameter ≤ 250 nm) showed a very high mass concentration (378.2 μg/m3) during deep-frying, raising human health concern. A substantial reduction (∼60–85%) in PM<0.25 mass concentrations and their total respiratory deposition doses (RDD) in the human respiratory tract was observed while using the air cleaner during the five cooking methods. Furthermore, morphological characteristics and the relative abundance of trace elements in cooking-derived PM were also investigated. This study provides useful insights into the assessment and mitigation of indoor human exposure to cooking-derived PM.

    更新日期:2020-01-27
  • The molecular mechanism of AhR-ARNT-XREs signaling pathway in the detoxification response induced by polycyclic aromatic hydrocarbons (PAHs) in clam Ruditapes philippinarum
    Environ. Res. (IF 5.026) Pub Date : 2020-01-27
    Hongdan Wang; Luqing Pan; Xin Zhang; Rongwang Ji; Lingjun Si; Yunhao Cao

    The aryl hydrocarbon receptor (AhR) has been known primarily for its role in the regulation of several drug and xenobiotic metabolizing enzymes to mitigate environmental stresses. In this study, we interfere the expression of AhR gene to investigate the mechanism of AhR signaling pathway in the detoxification and antioxidation defense system that induced by Polycyclic Aromatic Hydrocarbons (PAHs) exposure by RNA interference (RNAi). The gene expressions of aryl hydrocarbon receptor nuclear translocator (ARNT), heat shock protein 90 (Hsp90) were evaluated after being exposed to benzo(a)pyrene (BaP) (4 μg/L) for 5 days and the positive correlations between AhR, ARNT, HSP90 indirectly indicating that AhR may have the ability to bind to ligands such as PAHs in Ruditapes philippinarum (R. philippinarum). Besides, the activities of detoxification enzymes were determined to investigate the role of AhR signaling pathway played in the metabolic detoxification. What's more, the gene expressions of protein kinase C (PKC) signaling pathway, mitogen-activated protein kinase (MAPKs) signaling pathway, NF-E2-related factor 2 (Nrf2) signaling pathway and antioxidant defense system indicated that AhR may regulate the Nrf2-Keap1 signaling pathway through Kelch-like ECH-associated protein-1 (Keap1) and MAPKs, PKC signaling pathways. In conclusion, adoption of RNA interference technology to explore the role of RpAhR gene played in the detoxification and antioxidation defense system under the PAHs stress at different time points can informe molecular endpoints for application towards ecotoxicology monitoring of bivalves.

    更新日期:2020-01-27
  • Swine farming elevated the proliferation of Acinetobacter with the prevalence of antibiotic resistance genes in the groundwater
    Environ. Int. (IF 7.943) Pub Date : 2020-01-27
    Fang-Zhou Gao; Hai-Yan Zou; Dai-Ling Wu; Shuai Chen; Liang-Ying He; Min Zhang; Hong Bai; Guang-Guo Ying
    更新日期:2020-01-27
  • Using wastewater-based epidemiology to estimate consumption of alcohol and nicotine in major cities of China in 2014 and 2016
    Environ. Int. (IF 7.943) Pub Date : 2020-01-27
    Jianfa Gao; Qiuda Zheng; Foon Yin Lai; Coral Gartner; Peng Du; Yuan Ren; Xiqing Li; Degao Wang; Jochen F. Mueller; Phong K. Thai
    更新日期:2020-01-27
  • Natural sphalerite nanoparticles can accelerate horizontal transfer of plasmid-mediated antibiotic-resistance genes
    Environ. Int. (IF 7.943) Pub Date : 2020-01-27
    Guiying Li; Xiaofang Chen; Hongliang Yin; Wanjun Wang; Po Keung Wong; Taicheng An
    更新日期:2020-01-27
  • Autochthonous bioaugmentation with non-direct degraders: A new strategy to enhance wastewater bioremediation performance
    Environ. Int. (IF 7.943) Pub Date : 2020-01-27
    Jibing Li; Ke Peng; Dayi Zhang; Chunling Luo; Xixi Cai; Yujie Wang; Gan Zhang
    更新日期:2020-01-27
  • A sensitive optical-based test method for the locomotor activity of earthworms
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Ting Xu; Wanting Zhao; Juanjuan Miao; Bin Zhang; Xinyue Yang; G. Danial Sheng; Daqiang Yin
    更新日期:2020-01-27
  • Matching times: Trying to improve the correlation between heavy metal levels in mosses and bulk deposition
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    M.T. Boquete; A. Ares; J.A. Fernández; J.R. Aboal
    更新日期:2020-01-27
  • 更新日期:2020-01-27
  • The diversity of microbial community and function varied in response to different agricultural residues composting
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Yuanji Wang; Li Liu; Jianfeng Yang; Yumin Duan; Yu Luo; Mohammad J. Taherzadeh; Yongfu Li; Huike Li; Mukesh Kumar Awasthi; Zhengyang Zhao
    更新日期:2020-01-27
  • Differential responses of soil hydrolytic and oxidative enzyme activities to the natural forest conversion
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Gang Xu; Zhijian Long; Peng Ren; Chengjie Ren; Ying Cao; Yan Huang; Shanglian Hu
    更新日期:2020-01-27
  • Soil acidification in Chinese tea plantations
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Peng Yan; Liangquan Wu; Donghui Wang; Jianyu Fu; Chen Shen; Xin Li; Liping Zhang; Lan Zhang; Lichao Fan; Han Wenyan
    更新日期:2020-01-27
  • Bioremediation potential of Sargassum sp. biomass to tackle pollution in coastal ecosystems: Circular economy approach
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Sara Saldarriaga-Hernández; Gustavo Hernandez-Vargas; Hafiz M.N. Iqbal; Damiá Barceló; Roberto Parra-Saldívar
    更新日期:2020-01-27
  • Hydrodynamic impact on trace metals in sediments in the cascade reservoirs, North China
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Yanyan Li; Bo Gao; Dongyu Xu; Wenqi Peng; Xiaobo Liu; Xiaodong Qu; Min Zhang
    更新日期:2020-01-27
  • Experimental harvesting of wetland plants to evaluate trade-offs between reducing methane emissions and removing nutrients accumulated to the biomass in constructed wetlands
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    K. Kasak; A.C. Valach; C. Rey-Sanchez; K. Kill; R. Shortt; J. Liu; I. Dronova; Ü. Mander; D. Szutu; J. Verfaillie; D.D. Baldocchi
    更新日期:2020-01-27
  • Microbial degradation and other environmental aspects of microplastics/plastics
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Jianhua Yuan; Jie Ma; Yiran Sun; Tao Zhou; Youcai Zhao; Fei Yu
    更新日期:2020-01-27
  • Crop types have stronger effects on soil microbial communities and functionalities than biochar or fertilizer during two cycles of legume-cereal rotations of dry land
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Muhammad Azeem; Daquan Sun; David Crowley; Rifat Hayat; Qaiser Hussain; Amjad Ali; Muhammad Ibrahim Tahir; Parimala Gnana Soundari; Jörg Rinklebe; Zengqiang Zhang
    更新日期:2020-01-27
  • Freshwater seal as a source of direct and indirect increased human exposure to persistent organic pollutants in a background area
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Elena A. Mamontova; Eugenia N. Tarasova; Alexander A. Mamontov; Anatoliy M. Mamontov
    更新日期:2020-01-27
  • Efficient oxidation and adsorption of As(III) and As(V) in water using a Fenton-like reagent, (ferrihydrite)-loaded biochar
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Yifan Huang; Minling Gao; Yingxuan Deng; Zulqarnain Haider Khan; Xuewei Liu; Zhengguo Song; Weiwen Qiu
    更新日期:2020-01-27
  • Nonlinear responses of total belowground carbon flux and its components to increased nitrogen availability in temperate forests
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Wenjing Zeng; Jiangyong Zhang; Lizheng Dong; Wei Wang; Hui Zeng
    更新日期:2020-01-27
  • May smart technologies reduce the environmental impact of nitrogen fertilization? A case study for paddy rice
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Jacopo Bacenetti; Livia Paleari; Sofia Tartarini; Fosco M. Vesely; Marco Foi; Ermes Movedi; Riccardo A. Ravasi; Valeria Bellopede; Stefano Durello; Carlo Ceravolo; Francesca Amicizia; Roberto Confalonieri
    更新日期:2020-01-27
  • Methane and nitrous oxide porewater concentrations and surface fluxes of a regulated river
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Jorge A. Villa; Garrett J. Smith; Yang Ju; Lupita Renteria; Jordan C. Angle; Evan Arntzen; Samuel F. Harding; Huiying Ren; Xingyuan Chen; Audrey H. Sawyer; Emily B. Graham; James C. Stegen; Kelly C. Wrighton; Gil Bohrer
    更新日期:2020-01-27
  • Adsorption of cyanobacterial extracellular polymeric substance on colloidal particle: Influence of molecular weight
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    Huacheng Xu; Fangfang Li; Ming Kong; Xizhi Lv; Haiyan Du; Helong Jiang
    更新日期:2020-01-27
  • Hydrogeological control on carbon dioxide input into the atmosphere of the Chauvet-Pont d'Arc cave
    Sci. Total Environ. (IF 5.589) Pub Date : 2020-01-27
    François Bourges; Dominique Genty; Frédéric Perrier; Bruno Lartiges; Édouard Régnier; Alexandre François; Johann Leplat; Stéphanie Touron; Faisl Bousta; Marc Massault; Marc Delmotte; Jean-Pascal Dumoulin; Frédéric Girault; Michel Ramonet; Charles Chauveau; Paulo Rodrigues
    更新日期:2020-01-27
  • Magnetic supramolecular polymer: Ultrahigh and highly selective Pb(II) capture from aqueous solution and battery wastewater
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Zongwu Wang; Jing Zhang; Qing Wu; Xuexue Han; Mengna Zhang; Wei Liu; Xinding Yao; Jinglan Feng; Shuying Dong; Jianhui Sun
    更新日期:2020-01-27
  • Subtle effects of radiation on embryo development of the 3-spined stickleback
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Adélaïde Lerebours; Samuel Robson; Colin Sharpe; Jim T. Smith

    The Chernobyl and Fukushima nuclear power plant (NPP) accidents that occurred in 1986 and 2011 respectively have led to many years of chronic radiation exposure of wildlife. However, controversies remain on the dose threshold above which an impact on animal health occurs. Fish have been highly exposed immediately after both accidents in freshwater systems around Chernobyl and in freshwater and marine systems around Fukushima. The dose levels decreased during the years after the accidents, however, little is known about the effects of environmental low doses of radiation on fish health. The present laboratory study assesses the effects of an environmentally relevant dose range of radiation (0.1, 1 and 10 mGy/day) on early life stages of the 3-spined stickleback, Gasterosteus aculeatus. The cardiac physiology and developmental features (head width, diameter, area) of high exposed embryos (10 mGy/day) showed no significant change when compared to controls. Embryos exposed to the medium and high dose were slower to hatch than the controls (between 166 and 195 h post-fertilization). After 10 days of exposure (at 240 h post-fertilization), larvae exposed to the high dose displayed comparable growth to controls. High-throughput sequence analysis of transcriptional changes at this time point revealed no significant changes in gene regulation compared to controls regardless of exposure conditions. Our results suggest that exposure of fish embryos to environmental radiation elicits subtle delays in hatching times, but does not impair the overall growth and physiology, nor the gene expression patterns in the recently hatched larvae.

    更新日期:2020-01-27
  • Characteristics and disinfection byproducts formation potential of dissolved organic matter released from fast-growing Eucalyptus urophylla leaves
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Lu Liu; Yankui Tang; Weiwei Yang; Wenlu Li; Bo Fang; Yaxuan Zhong; Maozhong Yin; Yuwei Chen; Huiyi Yang
    更新日期:2020-01-27
  • Construction and application of a 1-liter upflow-stacked microbial desalination cell
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Yi Wang; Anlin Xu; Tao Cui; Jingjing Zhang; Hongxia Yu; Weiqing Han; Jinyou Shen; Jiansheng Li; Xiuyun Sun; Lianjun Wang
    更新日期:2020-01-27
  • Environmental application of monolithic carbonaceous aerogels for the removal of emerging pollutants
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Antón Puga; Emilio Rosales; MaAngeles Sanromán; Marta Pazos

    In this study, the performance of three commercial available monolithic carbonaceous aerogels (NQ30A, NQ60A and NQ80A) for the removal of different emerging pollutants, detected in water sources, was evaluated. More specifically, the removal of two pharmaceuticals (antipyrine and sulfamethoxazole) and an anti-fungal agent (methyl paraben), widely used in cosmetics, was studied. The NQ60A demonstrated the best adsorption characteristics and effectively adsorbed over 50 mg/g of the antipyrine and around 30 mg/g sulfamethoxazole and methyl paraben. The kinetic study of the adsorption process revealed that pseudo-first order kinetic model described very well the kinetic behaviour of the selected pollutants onto the NQ60A aerogel. After that, the regeneration of the loaded aerogel, with antipyrine alone and in presence of the other two contaminants, was evaluated. The regeneration was accomplished in two ways: (1) by using directly the loaded aerogels as cathode during the electro-Fenton treatment and (2) by its regeneration immersed in the bulk volume of electro-Fenton cell (boron doped diamond as anode and carbon felt as cathode). Both approaches can provide an effective removal of the pollutants inside the aerogel. In addition, the regenerated aerogel proved to maintain its adsorptive properties and can be successfully reused in successive cycles of adsorption-regeneration. On the basis of these promising results, it can be concluded that the proposed strategy based on aerogels adsorption and electro-Fenton regeneration is a suitable alternative for emerging pollutants removal from water streams.

    更新日期:2020-01-27
  • Effect of Pt catalyst on the condensable hydrocarbon content generated via food waste pyrolysis
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Soosan Kim; Chang-Gu Lee; Yong Tae Kim; Ki-Hyun Kim; Jechan Lee

    A Pt catalyst supported on activated carbon (Pt/AC) was used for an environmentally friendly thermal treatment of food waste under an inert atmosphere (i.e., pyrolysis). This catalyst influenced the amounts of condensable hydrocarbons and noncondensable gases but not that of the solid remaining after the pyrolysis; in particular, it contributed to shifting the carbon distribution from the condensable hydrocarbons to the noncondensable gases for the food waste pyrolysis. Moreover, its use suppressed the generation of harmful chemical compounds, especially at high temperatures. For example, a Pt/AC-catalyzed pyrolysis at 700 °C produced about 4 times fewer benzene derivatives than the same treatment without a catalyst; this probably occurred because the Pt sites catalyzed the decyclization reaction and/or the free radical mechanism, which is dominant in the thermal cracking of carbon-containing feedstock. This study suggests that a Pt/AC-catalyzed pyrolysis would be a more environmentally benign food waste treatment method.

    更新日期:2020-01-27
  • Source identification of Zn in Erren River, Taiwan: An application of Zn isotopes
    Chemosphere (IF 5.108) Pub Date : 2020-01-27
    Yao-Jen Tu; Chen-Feng You; Tian-Yue Kuo
    更新日期:2020-01-27
  • Ultrasensitive detection of amoxicillin by TiO2-g-C3N4@AuNPs impedimetric aptasensor: Fabrication, optimization, and mechanism
    J. Hazard. Mater. (IF 7.650) Pub Date : 2020-01-27
    Jialing Song; Manhong Huang; Nan Jiang; Shengyang Zheng; Tianwei Mu; Lijun Meng; Yanbiao Liu; Jianyun Liu; Gang Chen
    更新日期:2020-01-27
  • Adsorption of Cr(VI) on Al-substituted hematites and its reduction and retention in the presence of Fe2+ under conditions similar to subsurface soil environments
    J. Hazard. Mater. (IF 7.650) Pub Date : 2020-01-27
    Shuqi Jiang; Xinran Yan; Caroline L. Peacock; Shuang Zhang; Wei Li; Jing Zhang; Xionghan Feng; Fan Liu; Hui Yin
    更新日期:2020-01-27
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  • Simultaneous adsorption and oxidation of antimonite onto nano zero-valent iron sludge-based biochar: indispensable role of reactive oxygen species and redox-active moieties
    J. Hazard. Mater. (IF 7.650) Pub Date : 2020-01-27
    Dongning Wei; Bingyu Li; Lin Luo; Yongxin Zheng; Liuhui Huang; Jiachao Zhang; Yuan Yang; Hongli Huang
    更新日期:2020-01-27
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  • 更新日期:2020-01-27
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  • Assessment of cadmium and lead contamination in rice farming soils and rice (Oryza sativa L.) from Guayas province in Ecuador
    Environ. Pollut. (IF 5.714) Pub Date : 2020-01-27
    Martin Ochoa; Wladimir Tierra; Diego Santiago Tupuna-Yerovi; Danilo Guanoluisa; Xosé Luis Otero; Jenny Ruales
    更新日期:2020-01-27
  • Spatiotemporal patterns and drivers of soil contamination with heavy metals during an intensive urbanization period (1989–2018) in southern China
    Environ. Pollut. (IF 5.714) Pub Date : 2020-01-27
    Cheng Li; Georgina M. Sanchez; Zhifeng Wu; Jiong Cheng; Siyi Zhang; Qi Wang; Fangbai Li; Ge Sun; Ross K. Meentemeyer
    更新日期:2020-01-27
  • Association between long-term exposure to ambient air pollution and obesity in a Chinese rural population: The Henan Rural Cohort Study
    Environ. Pollut. (IF 5.714) Pub Date : 2020-01-27
    Xiaotian Liu; Runqi Tu; Dou Qiao; Miaomiao Niu; Ruiying Li; Zhenxing Mao; Wenqian Huo; Gongbo Chen; Hao Xiang; Yuming Guo; Shanshan Li; Chongjian Wang
    更新日期:2020-01-27
  • Molecular Identification of Water-Extractable Organic Carbon from Thermally Heated Soils: C-13 Nuclear Magnetic Resonance (NMR) and Accurate Mass Analyses Find Benzene and Pyridine Carboxylic Acids
    Environ. Sci. Technol. (IF 7.149) Pub Date : 2020-01-27
    E. Michael Thurman; Yun Yu; Imma Ferrer; Kevin A. Thorn; Fernando L. Rosario-Ortiz

    To simulate the effects of wildfire on the combustion process in soils and their potential to leach organic compounds into streams and groundwater, mineral soil samples were heated at temperatures of 150-550º C. Then, the soils were leached with deionized water, filtered, and analyzed by dissolved organic carbon. The water extract was concentrated by both XAD-8 and XAD-4 resins and analyzed by C-13 nuclear magnetic resonance (NMR) and liquid chromatography time-of-flight mass spectrometry. Approximately 15-20% of the water extractable organic carbon was identified as benzene dicarboxylic acids, tricarboxylic acids, and tetracarboxylic acid isomers, commonly called BPCAs. Also identified were isomers of pyridine dicarboxylic acids and tricarboxylic acids (PCAs). The conversion of soil organic carbon to BPCAs occurs at 250º C and reaches a maximum between 350º-450ºC. At higher temperatures (>450ºC), the BPCA concentrations decrease, suggesting decarboxylation and conversion to carbon dioxide and water. This is the first report of BPCAs and PCAs in water extractable organic carbon from thermally altered soil and suggest that these compounds are possible candidates for further water-quality studies in watersheds affected by wildfire. Finally, BPCAs and PCAs could contribute to the black carbon and nitrogen in seawater and are worthy of future investigation.

    更新日期:2020-01-27
  • Biological responses to climate change and nanoplastics are altered in concert: full-factorial screening reveals effects of multiple stressors on primary producers
    Environ. Sci. Technol. (IF 7.149) Pub Date : 2020-01-27
    Yamin Yang; Yawen Guo; Anna O'Brien; Tiago Fernandes Lins; Chelsea M. Rochman; David Sinton

    While the combined presence of global climate change and nano-sized plastic particle (i.e., nanoplastic) pollution is clear, the potential for interactions between climate-change-shifting environmental parameters and nanoplastics is largely unknown. Here, we aim to understand how nanoplastics will affect species in concert with climate change in freshwater ecosystems. We utilized a high-throughput full-factorial experimental system and the model photosynthetic microorganism Scenedesmus obliquus to capture the complexity of interacting environmental stressors, including CO2, temperature, light, and nanoplastics. Under a massive number of conditions (2000+), we consistently found concentration-dependent inhibition of algal growth in the presence of polystyrene nanoparticles, highlighting a threat to primary productivity in aquatic ecosystems. Our high-treatment experiment also identified crucial interactions between nanoplastics and climate change. We found that relatively low temperature and ambient CO2 exacerbated damage induced by nanoplastics, while elevated CO2 and warmer temperatures reflecting climate change scenarios somewhat attenuated nanoplastic toxicity. Further, we revealed that nanoplastics may modulate light responses, implying that risks of nanoplastic pollution may also depend on local irradiation conditions. Our study highlights the coupled impacts of nanoplastics and climate change, as well as the value of full-factorial screening in predicting biological responses to multifaceted global change.

    更新日期:2020-01-27
  • Puffed Rice Carbon with Coupled Sulfur and Metal Iron for High-Efficiency Mercury Removal in Aqueous Solution
    Environ. Sci. Technol. (IF 7.149) Pub Date : 2020-01-27
    Ruyi Fang; Chengwei Lu; Yu Zhong; Zhen Xiao; Chu Liang; Hui Huang; Yongping Gan; Jun Zhang; Guoxiang Pan; Xinhui Xia; Yang Xia; Wenkui Zhang

    Development of low-cost, high-efficiency and environmentally benign adsorbents for mercury removal is of significant importance for environmental remediation. Herein, we report a novel porous puffed rice carbon (PRC) with co-implanted metal iron and sulfur forming high-quality PRC/[email protected] composite as high-efficiency adsorbent for mercury removal from aqueous solution. The in-situ formed Fe nanoparticles in PRC are strongly coupled with sulfur via supercritical CO2 fluid approach and dispersed homogeneously in the crosslinked hierarchical porous architecture. The pore formation mechanism of Fe on PRC is also proposed. The optimized PRC/[email protected] composite offers superior selective affinity, high removal efficiency, and ultrahigh adsorption capacity of up to 738.0 mg g-1. It is demonstrated that the hierarchical porous carbon in PRC/[email protected] composite not only acts as framework to stabilize and disperse Fe nanoparticles, but also provides abundant pores and voids for absorbing Hg(II) from aqueous solution. More importantly, the absorbed Hg(II) can be reduced to Hg(0) by Fe and further chemically immobilized by sulfur. The enhanced coupled effect is discussed and proposed. Therefore, an innovative adsorption mechanism of adsorption-reduction-immobilization is proposed, which offers new prospect in developing high-efficiency carbon-based adsorbents in environmental remediation.

    更新日期:2020-01-27
  • Evolution of Indoor Cooking Emissions Captured by Using Secondary Electrospray Ionization High-Resolution Mass Spectrometry
    Environ. Sci. Technol. Lett. (IF 6.934) Pub Date : 2020-01-27
    Jiafa Zeng; Zhujun Yu; Majda Mekic; Jiangping Liu; Sheng Li; Gwendal Loisel; Wei Gao; Adrien Gandolfo; Zhen Zhou; Xinming Wang; Hartmut Herrmann; Sasho Gligorovski; Xue Li
    更新日期:2020-01-27
  • High-Strength Chitin Based Hydrogels Reinforced by Tannic Acid Functionalized Graphene for Congo Red Adsorption
    J. Polym. Environ. (IF 2.765) Pub Date : 2020-01-25
    Cuiyun Liu, Hongyu Liu, Keyong Tang, Keke Zhang, Zhaoxiang Zou, Xiping Gao

    Abstract In this study, a novel chitin based composite hydrogel reinforced by tannic acid modified reduced graphene oxide (TRGO) was prepared via a facile freezing–thawing approach. Epichlorohydrin (ECH) and TRGO sheets were employed as efficient crosslinkers to fabricate dually crosslinked TRGO/chitin composite hydrogels with advanced mechanical and adsorption properties. Results indicated that the TRGO reinforced chitin composites increased the mechanical property remarkably with exhibiting compression strength from 22.7 kPa for neat chitin hydrogel to 72.3 kPa for the hydrogel with loading of 7% TRGO. Multiple interactions such as hydrogen bonding between TRGO and chitin as well as the dually covalent crosslinking bonds were responsible for the extensive improvement in compression strength. Furthermore, the TRGO reinforced hydrogels exhibited an excellent adsorption capacity towards Congo red (CR). The maximum adsorption capacity of CR was 230.5 mg g−1 for chitin hydrogel with loading of 7% TRGO. The adsorption of CR was found following the Langmuir isotherm and pseudo-second-order models. Hence, the prepared TRGO/chitin hydrogels provide an easy and efficient way for the removal of CR dye from wastewater.

    更新日期:2020-01-26
  • Characterization of Polyhydroxyalkanoate Produced by Halomonas venusta KT832796
    J. Polym. Environ. (IF 2.765) Pub Date : 2020-01-25
    Angelina Stanley, P. S. Keshava Murthy, S. V. N. Vijayendra

    Abstract Halophilic microorganisms produce several metabolites having potential application in biotechnology and industry. They also produce polyhydroxyalkanoates (PHA), which are suitable replacements for conventional plastics for packaging food and non-food materials due to their biocompatible and biodegradable properties. PHA produced by the native isolate of Halomonas venusta KT832796 using a minimal medium was made into a film. It was characterized using Fourier Transform Infrared (FTIR) spectroscopy, Nuclear Magnetic Resonance (NMR) spectroscopy, GC–MS, UTM (Mechanical strength), Differential Scanning Calorimetry (DSC) and X-ray diffraction (XRD) analysis. Based on FTIR, NMR and GC–MS analyses the polymer produced by Halomonas venusta KT832796 was found to be poly(3-hydroxybutyrate). The polymer had a tensile strength of 26 MPa and Young’s modulus of 3 GPa and the melting temperature Tm 173.59 °C, which are found to be similar to the standard PHB polymer and the crystalline state was revealed by XRD pattern. This PHB polymer can be used in food packaging systems and medical applications for drug delivery. This is the first communication on characterization of PHA produced by Halomonas venusta.

    更新日期:2020-01-26
  • Air Quality Index and air quality awareness among adults in the United States
    Environ. Res. (IF 5.026) Pub Date : 2020-01-25
    Maria C. Mirabelli; Stefanie Ebelt; Scott A. Damon

    Background Information about local air quality is reported across the United States using air quality alerts such as the Environmental Protection Agency's Air Quality Index. However, the role of such alerts in raising awareness of air quality is unknown. We conducted this study to evaluate associations between days with Air Quality Index ≥101, corresponding to a categorization of air quality as unhealthy for sensitive groups, unhealthy, very unhealthy, or hazardous, and air quality awareness among adults in the United States. Methods Data from 12,396 respondents to the 2016–2018 ConsumerStyles surveys were linked by geographic location and survey year to daily Air Quality Index data. We evaluated associations between the number of days in the past year with Air Quality Index ≥101 and responses to survey questions about awareness of air quality alerts, perception of air quality, and changes in behavior to reduce air pollution exposure using logistic regression. Results Awareness of air quality alerts (prevalence ratio [PR] = 1.23; 95% confidence interval [CI] = 1.15, 1.31), thinking/being informed air quality was bad (PR = 2.02; 95% CI = 1.81, 2.24), and changing behavior (PR = 2.27; 95% CI = 1.94, 2.67) were higher among respondents living in counties with ≥15 days with Air Quality Index ≥101 than those in counties with zero days in the past year with Air Quality Index ≥101. Each aspect of air quality awareness was higher among adults with than without asthma, but no differences were observed by heart disease status. Across quintiles of the number of days with Air Quality Index ≥101, air quality awareness increased among those with and without selected respiratory and cardiovascular diseases. Conclusions Among U.S. adults, air quality awareness increases with increasing days with alerts of unhealthy air. These findings improve our understanding of the extent to which air quality alerts prompt people to take actions to protect their health amidst poor air quality.

    更新日期:2020-01-26
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