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Effect of Pesticides and Chemical Fertilizers on the Nitrogen Cycle and Functional Microbial Communities in Paddy Soils: Bangladesh Perspective Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-15 M. Mizanur Rahman, Azmerry Khanom, Shudhangshu Kumar Biswas
The concept of the Nitrogen (N) cycle has been modified over the years based on certain new pathways, including comammox, anammox, and DNRA (dissimilatory nitrate reduction to ammonium). Comammox, nitrification, anammox, denitrification, DNRA, and nitrogen fixation pathways play key roles in the N cycle in paddy soils. Pesticides and chemical fertilizers’ effects on the N cycle in paddy soils together
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Risk Assessment for Oral Bioaccessibility of Lead and Cadmium in the Potato Growing in Smelter-Impacted Soil Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-13 Yang Luo, Zhibin Duan, Yonggui Wu
Smelting activities are an important source of heavy metals in soil. More seriously, oral ingestion of crops growing in contaminated soil potentially cause harmful effects on human health. The main purpose of this study is to apply the in vitro model (PBET) and Monte Carlo Simulation (MSC) to the health risk assessment process in order to more accurately and realistically evaluate health risks of residents
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Sampling Site Specific Biomarker Responses in Mediterranean Mussels from the Adriatic Sea Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-12 Milena Mitrić, Andreja Ramšak
This study aims to explore the spatial and temporal patterns in biomarker responses during early spring and late summer in Mytilus galloprovincialis using samples from two Adriatic Sea ecosystems between 2009 and 2012. The condition index was higher in September at all sampling sites and suggests that mussels can store energy during summer for wintertime spawning and survival through the winter. Over
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A New Type of Ecological Floating Bed Based on Ornamental Plants Experimented in an Artificially Made Eutrophic Water Body in the Laboratory for Nutrient Removal Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-12 Zerui Zhang, Yajing Liu, Shuheng Hu, Jiaquan Wang, Jiazhong Qian
In this study, a new type of ecological floating bed (NT-EFB) employing ornamental plants (either Spathiphyllum floribundum, Hydrocotyle sibthorpioids, Chlorophytum comosum or Peperomia obtusifolia) was designed to purify confected eutrophic water for 39 days. The growth characteristics of the plants and the effect of water treatment were analyzed and compared. The results showed that: (1) all the
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Advances in Research on the Toxicological Effects of Selenium Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-09 Qizhuang Lv, Xiaomei Liang, Keyi Nong, Zifeng Gong, Ting Qin, Xinyun Qin, Daobo Wang, Yulin Zhu
Selenium is a trace element necessary for the growth of organisms. Moreover, selenium supplementation can improve the immunity and fertility of the body, as well as its ability to resist oxidation, tumors, heavy metals, and pathogenic microorganisms. However, owing to the duality of selenium, excessive selenium supplementation can cause certain toxic effects on the growth and development of the body
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Removal of Arsenic by Wheat Straw Biochar from Soil Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-09 Abhishek Kumar, Tanushree Bhattacharya
Biochar prepared from wheat straw (Triticum aestivum) at different pyrolysis temperatures was screened, followed by its application to soil for arsenic removal in the present study. Characterization of biochar by Field emission scanning electron microscope studies and Fourier thermal Infrared imaging showed smooth and porous biochar surface and abundance of surface functional groups. A low value of
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Role of Integrated Biomarker Response Tool for Assessment of Naphthalene Toxicity in Anabas testudineus Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-09 Susri Nayak, Lipika Patnaik
Polyaromatic hydrocarbons are highly stable and can easily permeate through biological membranes due to their lipophilic nature. They are characterized by their ability to act at the site of application and even at sites distant to the zone of application. Any contamination associated with aquatic bodies due to the presence of PAHs can be assessed by investigating biochemical changes. The most common
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Impacts of Titanium Dioxide Nanoparticles on Serum Parameters and Enzyme Activities of Clarias gariepinus Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-09 Mustafa Tunçsoy
Impacts of titanium dioxide nanoparticles (TiO2 NPs) on serum glucose, albumin, total protein, cholesterol, triglyceride, sodium (Na+), potassium (K+), and chloride ion (Cl−) levels and serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and cholinesterase (ChE) activities of Clarias gariepinus were determined after exposing
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Polycyclic Aromatic Hydrocarbons, Mercury and Arsenic Content in Soils of Larsemann Hills, Pravda Coast and Fulmar Island, Eastern Antarctica Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-08 Ivan Alekseev, Evgeny Abakumov
This study is aimed at investigation of various potential contaminants (arsenic, mercury and polycyclic aromatic hydrocarbons) content in soils of different landscapes of Eastern Antarctica ice-free areas. Our data not only showed that intensive human impact might result in significant direct contamination of surrounding landforms, but also revealed a specific role of ornithogenic transport in distribution
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Occurence and Variability of Domoic Acid in Mussel ( Mytilus galloprovincialis ) Samples from the Golden Horn Estuary, Sea of Marmara (Turkey) Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Fuat Dursun
The occurrence and variability of domoic acid (DA) levels in wild Mytilus galloprovincialis samples, compared with the Pseudo-nitzschia spp. abundance and particulate DA (pDA) concentrations in relation to the environmental changes in the Golden Horn Estuary, Turkey from October 2018 to September 2019. Biotoxin analysis were performed by high-performance liquid chromatography with diode-array detection
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Spatial Distribution of As and Cd in Co-contaminated Soils Within the Rice Root Microzone Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Xiaosong Tian, Guanqun Chai, Jingjing Wang, Xiulan Zhao
Soil samples were collected from the As and Cd co-contaminated demonstration area to analyze the spatial distributions of As and Cd in soils within the rice root microzone using the treatment of soil cubes (50 mm × 50 mm × 50 mm). The results indicated that there was no significant difference in the spatial distributions of total As or Cd in the microzone with the percentage of root weight, horizontal
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Spatial Distribution and Source Apportionment of Agricultural Soil Heavy Metals in a Rapidly Developing Area in East China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Xianghua Xu, Xidong Zhang, Yuxuan Peng, Renying Li, Cuiying Liu, Xiaosan Luo, Yongcun Zhao
We collected 682 topsoil samples (0–20cm) from agricultural lands of Luhe County in East China, and analyzed the spatial distribution patterns and potential sources of four major heavy metals. High Pb and Cr were mainly in the southeast adjacent to the Yangtze River, and Cd were characterized by an increasing trend from northwest to southeast, while high Hg mainly occurred in the areas near downtown
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Metal Bioaccumulation by the Neotropical Clam Anomalocardia flexuosa to Estimate the Quality of Estuarine Sediments Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Ana C. F. Cruz, Guacira F. E. Pauly, Giuliana S. Araujo, Paloma Gusso-Choueri, Tainá G. Fonseca, Bruno G. Campos, Ricardo E. Santelli, A. S. Freire, Bernardo F. Braz, Alice Bosco-Santos, Wanilson Luiz-Silva, Wilson Machado, Denis M. S. Abessa
This investigation evaluated the bioaccumulation potential of the tropical estuarine bivalve Anomalocardia flexuosa for trace metals. To this aim, chemical and sedimentological analyses and bioaccumulation tests were performed. The sediments were mainly composed by fine-sands and mud, with variable levels of organic matter and CaCO3. Muddy sediments from a depositional site (P2) presented the highest
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Preferential Liver Accumulation of Mercury Explains Low Concentrations in Muscle of Caiman yacare (Alligatoridae) in Upper Amazon Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Andrea C. Salazar-Pammo, Dario Achá, Guido Miranda-Chumacero
Caiman yacare is considered one of the top predators in the Amazon basin, and understanding pollutant distribution within its tissues may help its sustainable management. As a top predator, C. yacare should have the highest mercury concentrations, but has lower Hg concentrations than carnivorous fish (Rivera et al. 2016), which are part of their diet. We compared total Hg among liver, kidney, fat,
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Adsorptive Removal of Low-Concentration Cr(VI) in Aqueous Solution by Mg–Al Layered Double Oxides Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-04 Lin Fan, Bo Zhou, Sheng Zhang, Sihai Hu, Xiaohui Mi, Ran Sun, Yaoguo Wu
To explore the adsorption removal mechanism of Mg–Al layered double oxides (LDOs) for low-concentration (≤ 5 mg L−1) Cr(VI), the adsorption kinetics, adsorption isotherms and its influencing factors were studied by batch experiments. Cr(VI) adsorption reached equilibrium after 6, 11 and 15 h for initial Cr(VI) concentrations of 1, 3 and 5 mg L−1, respectively, and the final adsorption efficiency exceeded
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Biochar-Polylactic Acid Composite Accelerated Reductive Dechlorination of Hexachlorobenzene in Paddy Soils under Neutral pH Condition Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Cuiying Liu, Tao Zeng, Jinjin Zheng, Jianling Fan, Xiaosan Luo
In order to clarify the effect of biochar-polylactic acid (PLA) composite on reductive dechlorination of HCB in paddy soils, an anaerobic incubation experiment was conducted with four treatments of Sterile control, Control, Biochar, and Biochar-PLA in Hydragric Acrisols (Ac) and Gleyi-Stagnic Anthrosols (An). The results showed that in Ac, biochar addition significantly promoted HCB degradation during
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Soil Threshold Values for Zn Based on Soil-Rice System and Health Risk Assessment in a Typical Carbonate Area of Guangxi Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Yizheng Wang, Zhongfang Yang, Junfeng Ji, Qiong Yang, Xu Liu, Cheng Li, Wenbing Ji, Hongze Bo, Qizuan Zhang, Xiaoxiong Zhuo, Lei Wang
Zinc (Zn) is enriched in carbonate area related to geological genesis. To ensure safety of rice, soil threshold values of Zn in soil–rice systems were assessed based on analysis of soil–rice Zn concentration in relation to human health risk. Models for the prediction of Zn concentration of early-season and late-season rice grain were accurately established on the basis of significant partial correlations
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Application of an Improved Chloroform-Free Lipid Extraction Method to Staghorn Coral ( Acropora cervicornis ) Lipidomics Assessments Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Kathleen Lugo Charriez, Leila Soledade Lemos, Yailee Carrazana, Javier A. Rodríguez-Casariego, Jose M. Eirin-Lopez, Rachel Ann Hauser-Davis, Piero Gardinali, Natalia Quinete
Lipids are excellent biomarkers for assessing coral stress, although staghorn coral data (Acropora cervicornis) is lacking. Lipid extraction is the most critical step in lipidomic assessments, usually performed using carcinogenic solvents. Efficient alternative using less toxic methods, such as the BUME method using butanol and methanol as extraction solvents, have not been applied to coral lipidomics
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Metal Contamination of Groundwater Sources in the Environs of a Tropical Estuary in South India Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Sonu Sasidharan, D. S. Jaya
The study was conducted to evaluate the metal pollution of groundwater sources in the residential areas in the surroundings of Kadinamkulam estuary, South India using the Heavy metal Pollution Index (HPI). For the study, forty one groundwater samples were collected during pre monsoon season from the dug wells of two gramapanchayaths and the concentration of heavy metals Cd, Cu, Zn, Cr, Pb and Fe were
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Risks Assessment Associated with Different Sources of Metals in Abandoned Soil of Zhuxianzhuang Coal Mine, Huaibei Coalfield (Anhui, China) Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Hongxia Fang, Herong Gui, Jun Li, Hao Yu, Meichen Wang, Yaqi Jiang, Chunlei Wang, Chen Chen, Yaru Zhang, Yiheng Huang
In this paper, the 36 topsoil (0–10 cm) samples were collected and the contents of Cr, Mn, Co, Ni, Cu, Zn, As, Cd and Pb were analyzed. The results indicated that the contents of Cu and As in all samples exceeded the soil background values of Anhui province, while the Co and Pb contents were lower than the background values. Geo-statistics and positive matrix factorization were applied to identify
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Mercury Bioaccumulation in Freshwater Snails as Influenced by Soil Composition Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Ge Zhang, Deliang Yin, Tianrong He, Yiyuan Xu, Shu Ran, Xian Zhou, Xiang Tian, Yan Wang
Soil properties largely control the fate of mercury (Hg), including the synthesis of neurovirulent methylmercury (MeHg). Here, the freshwater snail (Cipangopaludina cahayensis), a snail species commonly bred in flooded farmland, was used in a test of biotoxicity exposure to explore the effects of soil components on Hg bioavailability. The results show that snails incubated on the surface of slightly
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Use of an Integrated Geochemical and Ecotoxicological Approach to Evaluate Sediment Metal Contamination in Three Protected Estuarine Areas Along the Coast of São Paulo State, Brazil Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 M. V. Capparelli, J. C. McNamara, G. S. Araujo, A. C. F. Cruz, D. M. S. Abessa
We compared sediment quality in estuaries at three locations along the coast of São Paulo State, Brazil, using geochemical analyses and whole sediment toxicity tests, during the southern summer and winter of 2013. Each locality is afforded a distinct degree of legal protection, and exhibits a different level of metal pollution: overall, Rio Diana (RD, the most polluted, a Permanent Protection Area) > Rio
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Application of Stable Isotopic Ratio Analysis to Identify the Cause of Acute Versus Chronic Lead Poisoning of a Tundra Swan ( Cygnus columbianus ): A Case Study Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Patrick R. Gorski, Sean R. Scott, Erin M. Lemley
We utilized lead (Pb) stable isotopes to identify the source of acute Pb poisoning in a Tundra Swan (Cygnus columbianus) and evaluated overall Pb exposure. Upon necropsy, we obtained samples of blood, liver, kidney, heart, thigh, breast, femur, and metallic objects (i.e., fishing sinker, spring and swivels) from the gizzard for Pb isotopic analysis. Pb isotope ratios of blood and soft tissues were
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Cadmium Bioavailability and Accumulation in Rice Grain are Controlled by pH and Ca in Paddy Soils with High Geological Background of Transportation and Deposition Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Chen Jiale, Zheng Chao, Ruan Jinzhao, Zhang Chunhua, Ge Ying
Cadmium (Cd) threatens rice quality and human health, yet this risk remains uncertain in paddy fields with high geological background of transportation and deposition. In this study, we collected 31 pairs of soil and rice grain samples in Doumen and Xinhui Districts in Guangdong province, China and investigated which factors controlled Cd bioavailability in soil and accumulation in rice. Soil samples
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Toxicity Evaluation of Six Textile Dyes on Growth, Metabolism and Elemental Composition (C, H, N, S) of Microalgae Spirulina platensis : The Environmental Consequences Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Samchetshabam Gita, Satya Prakash Shukla, Geetanjali Deshmukhe, Tanmoy Gon Choudhury, Neelam Saharan, Ashutosh Kumar Singh
A concentration-dependent decrease in growth rate and pigment concentration of the blue-green alga Spirulina platensis was recorded after the exposure to graded (5–40 ppm) concentration of six textile dyes. The profile of vital elements (C, H, N, S) also showed a significant variation due to dye toxicity. The algal population showed up to 50% decrease in protein content after exposure to the dyes.
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Effects of Phenanthrene Stress on Gonads and Vitellogenin of Loach ( Misgurnus anguillicaudatus ) Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Hangli Wu, Peng An, Jia Wang, Rongzi Guan, Na Yang, Xin Lei
Phenanthrene (PHE) as a tricyclic polycyclic aromatic hydrocarbon is one of the common pollutants in water and sediments, which can cause reproductive toxicity to aquatic organisms. In this study, enzyme-linked immunosorbent assay (ELISA) was used to detect the vitellogenin (VTG) of loach, and then to explore the estrogenic toxicity effect of PHE on loach. The results were as follows: (1) with the
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Levels of Metals and Organochlorine Pesticides in Kidney, Liver, and Muscle Tissues of Wild Boars ( Sus scrofa ) from Hatay Province, Eastern Mediterranean Region, Turkey Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-03 Ibrahim Ozan Tekeli, Mustafa Yipel, Seydi Ahmet Sengul, Fatih Sakin
Increases in the levels of environmental contaminants are reflected in wild animals, which are early indicators of pollution. Hatay is an ecologically important region with a high intensity of industrial and agricultural activities. This study aimed to investigate the contamination levels of metals and organochlorine pesticides associated with environmental pollution in tissues of wild boars from Turkey
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Effects of Soil pH and Mineral Nutrients on Cadmium Uptake by Rice Grain in the Pearl River Delta, China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-02 Qingye Hou, Zhongfang Yang, Junfeng Ji, Tao Yu, Jiaxin Yuan
Alluvial soils are rich in mineral nutrients, and contain high heavy metals, especially Cd. The interactions of mineral nutrients with Cd in soil-rice grain systems on natural condition of alluvial plain are highlighted in this study. 110 pairs of rice grain and soil (0–20 cm) samples from the Pearl River Delta were investigated and measured. The results indicated that pH, organic matter, cation exchange
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Synthesis and Characterization of Activated Carbon from Biowaste-Peanut Shell and Application to Preconcentration/Removal of Uranium Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-02 Mehmet Yaman, Maruf Hursit Demirel
This study aims to synthesize and characterize an economical and ecological adsorbent with high adsorption capacity. For this purpose, the peanut shells (Pistacia vera L.) were modified chemically. After the synthesis of activated carbon (AC), the optimum conditions for enrichment steps were performed using parameters: pH and contact time for uranium in the model solutions. The measurements were carried
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A Preliminary Toxicology Study on Eco-friendly Control Target of Spodoptera frugiperda Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2021-01-02 Li-Kui Wang, Fen Li, Wayne Jiang, Wen-Bo Duan, Ehab Abdelraheem, Zheng-Qiang Peng, Farag Malhat, Shao-Ying Wu
Pyrethroid and indoxacarb are commonly used pesticides to control the fall armyworm (Spodoptera frugiperda) in the crops. There are a series of consequences caused by the use of pyrethroid and indoxacarb pesticides under emergency control, such as pest resistance development, contamination of soil, water, and farm products. This study analyzed the structure and physiological function of the sodium
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Suitability of Nansha Mangrove Wetland for High Nitrogen Shrimp Pond Wastewater Treatment Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-12-01 Dan Wang, Xianming Xie, Weiyi Tang, Hongzhong Pan, Jie Luo
To investigate mangroves of different land use types in Nansha county, China, we analyzed the corresponding N2O and CH4 emissions, water temperature, salinity, acidity and alkalinity, dissolved oxygen, redox potential, nitrate, nitrite, ammonia nitrogen, and organic matter at five sites. The removal rates of NO2−, NO3−, and NH4+ in mangrove wetlands were 43.6%, 41.2%, and 65.0%; however, CH4 and N2O
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Bacteria Associated with Echinodorus cordifolius and Lepironia articulata Enhance Nitrogen and Phosphorus Removal from Wastewater Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-30 Jamyang Tenzin, Ratana Hirunpunth, Anchittha Satjarak, Saranya Peerakietkhajorn
Phytoremediation and bioremediation are eco-friendly methods of wastewater treatment that are widely used throughout the world to reduce anthropogenic water contamination. This study was conducted to assess the effectiveness of symbiotic bacteria in phytoremediation using two aquatic plants, Echinodorus cordifolius and Lepironia articulata, that were tested in sterilized and unsterilized groups. The
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Water Quality Analysis of the Yangtze and the Rhine River: A Comparative Study Based on Monitoring Data from 2007 to 2018 Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-28 Xuan Li, Yichen Xu, Mei Li, Rong Ji, Reto Dolf, Xueyuan Gu
Monitoring water environmental quality of large rivers is the basis of river evaluation and local environmental protection worldwide. This study compared the water quality of the Rhine and the Yangtze River, two of the world’s most important arteries, based on monitoring data collected from their monitor stations from 2007 to 2018. Dissolved oxygen (DO), pH, chemical oxygen demand (COD)/dissolved organic
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Phthalates in House and Dormitory Dust: Occurrence, Human Exposure and Risk Assessment Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-28 Shen Xu, Chao Li
Phthalates are one of ubiquitous contaminants in the indoor environment. In this study, we analyzed concentrations and profiles of 9 phthalates in dust samples collected from houses and university dormitories in Nanjing, China. The total concentrations of phthalates in house and dormitory dust ranged from 111.4 to 3599.1 µg/g and 86.1 to 1262.3 µg/g, respectively. Phthalates in house was significantly
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Disturbance in Mineral Nutrition of Fenugreek Grown in Water Polluted with Nanosized Titanium Dioxide Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-28 Takwa Missaoui, Moêz Smiri, Hajer Chemingui Zahra Alhalili, Amor Hafiane
Nanoparticle (NPs) toxicity in the plant has drawn considerable attention. Fenugreek plants were cultivated for 16 days in hydroponic experiments and treated with 50 and 100 mg L− 1 titanium oxide (TiO2) NPs of two sizes [23 ± 1.6 nm (D1) and 83 ± 15 nm. (D2)]. The level of Ti in roots was higher than that of leaves and stems of plants treated with 100 mg L− 1 of TiO2 NPs (D1, D2). Ti caused a depletion
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Sediment Records of Polybrominated Diphenyl Ethers (PBDEs) from the Anhui Province Section of Yangtze River, China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-26 Chunnian Da, Ruwei Wang, Qing Huang, Jinyu Mao, Lijin Xie, Chao Xue, Long Zhang
This study investigated the temporal changes of PBDEs in the sediment cores from the Anhui Province section of Yangtze River (YR), China. The dramatic increase of ∑Br3-Br9-BDEs and BDE-209 concentrations in cores in the period of ca. 1990–2008 was consistent with the booming of regional and national production and consumption of household appliances and electronics. Following declines in BDE-209 and
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Comparative Acute Toxicity and Oxidative Stress Responses in Three Aquatic Species Exposed to Stannic Oxide Nanoparticles and Stannic Chloride Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-25 Zhuang Wang, Lan Song, Fan Zhang, De-Gao Wang
We experimentally investigated the toxicity of stannic oxide nanoparticles (SnO2 NPs) to three freshwater species including Scenedesmus obliquus, Daphnia magna, and Danio rerio. To evaluate effect, toxicological impacts were compared to that of stannic chloride (SnCl4). Based on the actual concentration of Sn, SnO2 NPs suspensions inhibited growth of S. obliquus in a dose-dependent manner, demonstrating
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Toxicity Changes of Heavily Polluted River Sediments on Daphnia magna Before and After Dredging Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-24 Li-Ling Zhang, Zhou-Tao Pei, Ya-Ni Zhao, Jing Zhang, Rou-Rou Xu, Meng Zhang, Wen-Qiang Wang, Li-Wei Sun, Guang-Can Zhu
Most of the pollutants discharged into the water will deposit at the bottom of the river and may cause biological toxicity. Daphnia magna-elutriate toxicity bioassay was usually applied to evaluate sediment toxicity. However, the loss of hydrophobic pollutants during the elutriating will lead to the underestimation of sediment toxicity. The purpose of this study is to apply the optimized immobilized
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Biogenic Volatile Organic Compounds Emission of Brazilian Atlantic Tree Grown Under Elevated Ozone in Ambient Controlled and Field Conditions Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-23 Giselle da Silva Pedrosa, Debora Pinheiro de Oliveira, Josiane Valéria Soares Bison, Ricardo Marcondes Bugarelli, Luciano Soares Cruz, Silvia Ribeiro de Souza
Croton floribundus (L.) Spreng trees were exposed to accumulated ozone (O3) levels under laboratory and field conditions and monitored the foliar visible symptoms and BVOC emissions. Plants exposed to O3 in the laboratory presented more substantial damage and significant increase in the BVOC emissions than plants in the field. Caryophyllene and 3-hexen-1-ol emissions were significantly increased in
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Spatial and Temporal Distribution Characteristics of Triazine Herbicides in Typical Agricultural Regions of Liaoning, China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-20 Xiaochun Wang, Qinglong Liu
The aim of the current study was to track the composition, spatial and temporal distribution charactistics of triazine herbicides in arable soils and corns in typical agricultural regions of Liaoning Province, China. All samples were analyzed using high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Twelve kinds of triazine herbicides were found including atrazine, simazine
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Arsenite Oxidation by Dunaliella salina is Affected by External Phosphate Concentration Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-19 Ya Wang, Chunhua Zhang, Xiangyang Yu, Ying Ge
Arsenic (As) contamination in terrestrial and aquatic environments is a well-known global environmental problem. The biooxidation of arsenite [As(III)] and subsequent arsenate [As(V)] removal have increasingly been used for remediation of As-polluted groundwater. However, little is known about As(III) oxidation by microalgae, especially those from saltwater environments. In this study, we investigated
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N-phenyl-1-naphthylamine (PNA) Accumulates in Snapping Turtle ( Chelydra serpentina) Liver Activating the Detoxification Pathway Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-19 Tash-Lynn L. Colson, Shane R. de Solla, Vimal K. Balakrishnan, John Toito, Valerie S. Langlois
Substituted phenylamine antioxidants (SPAs) are used in Canadian industrial processes. SPAs, specifically N-phenyl-1-naphthylamine (PNA), have received very little attention despite their current use in Canada and their expected aquatic and environmental releases. There is a research gap regarding the effects of PNA in wildlife; therefore, Chelydra serpentina (common snapping turtle) was studied due
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Tributyltin Induces the Tissue-Specific Stresses in Zebrafish, a Study in Various Tissues of Muscle, Gill and Intestine Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-19 Ping Li, Zhi-Hua Li
Because the mechanism of tissue-specific toxicity of tributyltin (TBT) in aquatic organisms has not been explained clearly, the aim of this study is to investigate the effect of chronic exposure to TBT on muscle-related energy metabolism, gill-related ATPase enzymatic system and intestine-related digestive enzymes activities in zebrafish. Male zebrafish were exposed to sub-lethal concentrations of
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The Effects of Silicon and Different Types of Acid Rain on Root Growth and Physiology Activity of Oryza Sativa L. Seedlings Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-19 Shuming Ju, Yukun Wang, Nana Wang, Meng Chen
The effect of silicon (Si) and different types of acid rain (AR) on rice seedling roots was elucidated. The results showed different types of AR had different effects. Nitrate AR at pH 3.0 could promote the growth of rice roots, increased the dry weight, improved root phenotype, boosted H2O2 contents and increased peroxidase, catalase and ascorbate peroxidase activities. Sulfate AR at pH 3.0 could
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Effects of Artificial Islands Construction on the Spatial Distribution and Risk Assessment of Heavy Metals in the Surface Sediments from a Semi-closed Bay (Longkou Bay), China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-19 Peng Ren, He Zhu, Zhigao Sun, Chuanyuan Wang
Artificial islands construction can significantly influence the spatial distribution of heavy metals in inshore sediments. In this study, the distribution and contamination of heavy metals (Cd, Co, Cr, Cu, Ni, Pb, Zn, As and Hg) in inshore sediments of the Longkou Bay and artificial island adjacent areas were investigated in 2013 and 2014, respectively. Results showed that the contents of heavy metals
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Carbon and Nitrogen Stable Isotopes Evidence for the Environmental Impact of the Cage Fish Farm in Poyang Lake, China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-17 Maolan Wang, Xin Xiong, Jingjing Liu, Chang He, Qianyu Zhao
The carbon and nitrogen stable isotope compositions of the sediment organic matter, fish feed and fish feces were measured to assess the impact of the aquaculture waste from the cage fish farm in Poyang Lake. The results provide evidence of the non-negligible effect of aquaculture waste on the sediment organic matter. The δ13C and δ15N of sediments varied from − 27.62 to − 25.66‰ and 4.83 to 6.92‰
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Indoor and Outdoor PM 10 -Bound PAHs in an Urban Environment. Similarity of Mixtures and Source Attribution Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-17 David Galán-Madruga, June Mérida Terroba, Saúl García dos Santos, Regina Muñoz Úbeda, Jesús P. García-Cambero
Given that the European Union lays down air quality objectives associated with outdoor environments, indoor air mixtures’ study acquires a remarkable relevance. This work aims to submit a stepwise methodological framework for assessing similarities between indoor and outdoor air mixtures and apportioning potential emission sources. For reaching this goal, PM10 particles were systematically and simultaneously
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Extraneous Fe Increased the Carbon Retention of Sludge-Based Biochar Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-17 Minghao Shen, Xiangdong Zhu, Shicheng Zhang
Pyrolysis is a promising technology for the disposal of sewage sludge. In this study, FeCl3 was selected as an additive for sludge pyrolysis. The results indicated that the FeCl3-addition strategy not only enhanced carbon retention but also enhanced the nitrogen retention of sludge-based biochar. The best enhancement effect both occurred at 500°C, and the enhanced amount reached 29.7 mg C/g sludge
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Aerobic Metabolism Impairment in Tambaqui ( Colossoma macropomum ) Juveniles Exposed to Urban Wastewater in Manaus, Amazon Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-17 Roberta Prestes Jacaúna, Daiani Kochhann, Derek Felipe Campos, Adalberto Luis Val
The main purpose of the present study was to investigate the potential use of metabolic parameters as non-specific biomarkers of pollution. The Igarapé do Quarenta is a small urban river crossing an industrial area in the city of Manaus, Amazon, and receives the city wastewater without treatment. The fish tambaqui (Colossoma macropomum) were exposed to water collected from two different sites of that
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Study on the Release Potential of BPA and Steroid Estrogens in the Sediments of Erhai Lake, a Typical Plateau Lake of China Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-11 Jian Shen, Xueying Li, Xinze Wang, Jimeng Feng, Xiaojuan He, Shiyi Jiang, Ailing Zhou, Xiaoyan Ouyang
On-site sampling analysis and laboratory-scale experiments were conducted to study the pollution status and release potential of EDCs in Erhai Lake. We found that nitrogen and phosphorus pollution in Erhai Lake sediment were both at a high level, as well as EDCs pollution. The concentrations of BPA, E2α, E1, E2β, EE2, and E3 were 36.84 ng/g(DW), 13.04 ng/g(DW), 128.97 ng/g(DW), 52.57 ng/g(DW), 18.48 ng/g(DW)
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Effects of Ocean Acidification and Microplastics on Microflora Community Composition in the Digestive Tract of the Thick Shell Mussel Mytilus coruscus Through 16S RNA Gene Sequencing Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-11 Liguo Yang, Linlan Lv, Haojie Liu, Miaorun Wang, Yanming Sui, Youji Wang
Ocean acidification and microplastic pollution is a global environmental threat, this research evaluated the effects of ocean acidification and microplastics on mussel digestive tract microbial community. The 16S rRNA gene was sequenced to characterize the flora. Species diversity in the samples was assessed by clustering valid tags on 97% similarity. Bacteroidetes, Firmicutes and Proteobacteria were
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Assessment of Elemental Components in Atmospheric Particulate Matter from a Typical Mining City, Central China: Size Distribution, Source Characterization and Health Risk Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-10 Wenyu Zhou, Hongxia Liu, Jueyi Xiang, Jingru Zheng, Ruizhen Yao, Shan Liu, Ting Liu, Jiaquan Zhang, Changlin Zhan, Wensheng Xiao, Junji Cao
Atmospheric particulate matters in nine size fractions were sampled at Huangshi city, Hubei province. Elemental concentrations occurred unimodal size distribution for Zn, Pb and Ni, dimodal distribution for Ca, S, Fe and Ti, and trimodal distribution for Cl, K, Mn, Cu and Cr. Enrichment factor and principal component analysis identified the main sources from crustal material, biomass burning, waste
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Effects on Ultrastructure, Composition and Specific Surface Area of the Gills of Odontesthes bonariensis Under Subchronic Glyphosate-Based Herbicide Exposure Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-07 Renata J. Menéndez-Helman, Leandro A. Miranda, Alfredo Salibián, María dos Santos Afonso
Gills represent one of the major sites of gas exchange of fish, consequently they are in continuous close contact with the aquatic environment and its pollutants. In the present study the effects on gills of pejerrey fish, Odontesthes bonariensis, under glyphosate-based herbicide subchronic exposure were analyzed. Adult animals were exposed to sublethal concentrations of a glyphosate-based commercial
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Freshwater Clam as a Potential Bioindicator for Silver/Saponin Nanocomposites Toxicity Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-06 Ayman S. Mohamed, Saad Bin Dajem, Mohammed Al-Kahtani, Sara B. Ali, Mohammed Alshehri, Ali Shati, Kareem Morsy, Sohair R. Fahmy
Despite the progress in using silver nano products in many fields, including medicine, food, and industry, their effects on the environment need more attention. Therefore, the current study aimed to assess the effect of silver/saponin nanocomposites (Ag/S NCs) for the first time on the aquatic environment by using freshwater clam, Caelatura aegyptiaca, as a fundamental bioindicator in the freshwater
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Metagenomic Analysis Revealed that the Terrestrial Pollutants Override the Effects of Seasonal Variation on Microbiome in River Sediments Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-05 Han Qiu, Likun Gu, Bo Sun, Jianyun Zhang, Miao Zhang, Shanshan He, Shuqing An, Xin Leng
Researching the structure and function of sediment microbiome contribute to understanding the response of microbiome to external disturbances. However, seasonal changes in sediment microbiome with different terrestrial pollutants input have not yet been clearly understood. Metagenomic sequencing was used to evaluate the effects of seasonal variations and different land use types on sediment microbiome
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Reducible Fraction Dominates the Mobility of Vanadium in Soil Around an Iron Smelter Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-02 Long Zhijie, Huang Yi, Zhang Wei, Shi Zhangliang, Yu Daming, Chen Yin, Liu Chao, Wang Rui
Soil samples were collected to determine the pollution status, spatial distribution and mobility of Vanadium (V) in soil around an iron smelter in Panzhihua. The results showed that the topsoils and deep soils were unpolluted to moderately polluted and the subsurface soils was unpolluted with V. V concentrations in the topsoils decreased with the increase of the altitudes and the distances to the smelter
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Synthesis and Surface Modification of Small Pore Size Zeolite W for Improving Removal Efficiency of Anionic Contaminants from Water Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-11-02 Youness Abdellaoui, Prócoro Gamero-Melo, Lourdes Díaz-Jiménez, Carmen Ponce-Caballero, Germán Giácoman-Vallejos
The presence of regulated inorganic contaminants in water such as AsO43− and PO43− anions, is becoming a relevant environmental research topic. The harm that these anions cause to human health and the ecosystem have been reported in several works. The adsorption processes using low-cost materials, such as zeolites, have proven to be an option to removal hazardous contaminants from water. The coal fly
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Sensitive Techniques for POCT Sensing on the Residues of Pesticides and Veterinary Drugs in Food Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-10-31 Lin Liu, Yueying Gao, Jinghan Liu, Ying Li, Ziye Yin, Yuanyuan Zhang, Fuwei Pi, Xiulan Sun
For the immense requirement on agriculture and animal husbandry, application of pesticides and veterinary drugs had become a normal state in the farming and ranching areas. However, to intently pursue the yields, large quantities of residues of pesticides and veterinary drugs have caused serious harm to both the environment and the food industry. To control and solve such an issue, a variety of novel
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Competitive Adsorption and Mobility of Propiconazole and Difenoconazole on Five Different Soils Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-10-28 Feiyan Wang, Duantao Cao, Lihong Shi, Shuhong He, Xin Li, Hua Fang, Yunlong Yu
Propiconazole (PPC) and difenoconazole (DFC) are often combined for field applications. The resulted co-exsistence of PPC and DFC may have an effect on the fate of their individuals in soil. In this study, adsorption, desorption and leaching of PPC and DFC alone and their combinations were investigated in five different soils. Adsorption of PPC and DFC was significantly different on each soil with
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Identification of Phytotoxic Levels of Copper and Nickel in Commercial Organic Soil Amendments Recycled from Poultry Farms and Municipal Wastes Bull. Environ. Contam. Toxicol. (IF 1.657) Pub Date : 2020-10-26 Tesfamichael H. Kebrom, Robert Douglas, Subhani Bandara, Selamawit Woldesenbet, Laura Carson, Negusse Kidane
Commercial-scale recycling of agricultural and municipal wastes into organic soil amendments facilitates safe disposal of waste and reduces environmental contamination. However, phytotoxicity of commercial organic amendments to crops is a major concern to farmers. Consistent with this, commercial chicken manure and Milorganite (recycled from municipal waste) were found to be phytotoxic. Chicken manure