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Toxic heavy metals in rainwater samples of Tehran J. Atmos. Chem. (IF 2.0) Pub Date : 2023-12-22 Roholah Malekei, Mohammad Hossein Sayadi, Reza Dahmardeh Behrooz, Dimitris G. Kaskaoutis
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Aerosols in Northern Morocco (Part 3): the application of three complementary approaches towards a better understanding of PM10 sources J. Atmos. Chem. (IF 2.0) Pub Date : 2023-12-17 Abdelfettah Benchrif, Mounia Tahri, Benjamin Guinot, El Mahjoub Chakir, Fatiha Zahry, Bouamar Bagdhad, Moussa Bounakhla, Hélène Cachier
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Spatio-temporal variability and possible source identification of criteria pollutants from Ahmedabad-a megacity of Western India J. Atmos. Chem. (IF 2.0) Pub Date : 2023-12-14 Shahana Bano, Vrinda Anand, Ritesh Kalbande, Gufran Beig, Devendra Singh Rathore
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Wet deposition of total nitrogen, dissolved organic carbon and heavy metals investigating role of long-range transport at two sites in Delhi J. Atmos. Chem. (IF 2.0) Pub Date : 2023-11-03 Sunaina S., U. C. Kulshrestha
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Impact of lockdown (COVID-19) and unlocking period on ambient air quality and human health in Lucknow city, India J. Atmos. Chem. (IF 2.0) Pub Date : 2023-08-02 Ankit Kumar, Priya Saxena, Abdul Atiq Siddiqui, Sreekanth Bojjagani, Altaf Husain Khan, Ganesh Chandra Kisku
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Wintertime trends of particulate-bound polycyclic aromatic hydrocarbons (PAHs) at north-east site of India: chemical characterization and source identification J. Atmos. Chem. (IF 2.0) Pub Date : 2023-07-21 Pratibha Vishwakarma, Pradhi Rajeev, Shahadev Rabha, Nazrul Islam, Binoy K. Saikia, Tarun Gupta
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Statistical analysis of the variability of reactive trace gases (SO2, NO2 and ozone) in Greater Cairo during dust storm events J. Atmos. Chem. (IF 2.0) Pub Date : 2023-07-14 Mohamed Boraiy, Mossad El-Metwally, Ali Wheida, Mostafa El Nazer, Salwa K. Hassan, Fatma F. El-Sanabary, Stéphane C. Alfaro, Magdy Abdelwahab, Agnès Borbon
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Spatial variations in physico-chemical characteristics of PΜ2.5 in an urban coastal city of India and associated health risks J. Atmos. Chem. (IF 2.0) Pub Date : 2023-07-03 Shruti Tripathi, Abhishek Chakraborty, Debayan Mandal
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Significant abundances of alkaline components in the fine and coarse aerosols over a tropical rain shadow location in peninsular India J. Atmos. Chem. (IF 2.0) Pub Date : 2023-05-27 P. S. Soyam, P. D. Safai, S. Mukherjee, S. Kondle, S. Bankar, K. Todekar, N. Malap, D. Surendran, A. Gaikwad, S. Lohogaonkar, T. Prabhakaran
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Fate of 1,3-dioxolane in the troposphere: kinetics, mechanism with theoretical support, and atmospheric implications J. Atmos. Chem. (IF 2.0) Pub Date : 2023-04-12 Anmol Virmani, Mohini P. Walavalkar, Asmita Sharma, Ankur Saha, Sumana Sengupta, Awadhesh Kumar
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Variations in mixing states of organic aerosol composition and formation of secondary organic aerosol at background region J. Atmos. Chem. (IF 2.0) Pub Date : 2022-12-28 A. P. Lingaswamy, T. Nishanth, T. V. Lakshimi Kumar, M. K. Satheesh Kumar
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Remote sensing of aerosols due to biomass burning over Kanpur, Sao-Paulo, Ilorin and Canberra J. Atmos. Chem. (IF 2.0) Pub Date : 2022-10-13 Salman Tariq, Zia ul-Haq, Hasan Nawaz, Usman Mehmood, Zaeem Bin Babar
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Water-soluble dicarboxylic acids, oxoacids and α-dicarbonyls in the tropical aerosols in coastal megacity Mumbai: molecular characteristics and formation processes J. Atmos. Chem. (IF 2.0) Pub Date : 2022-10-08 Ashmeet Kaur Alang, Shankar G. Aggarwal, Khem Singh, Daya Soni, Kimitaka Kawamura
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Surface ozone changes during the COVID-19 outbreak in China: An insight into the pollution characteristics and formation regimes of ozone in the cold season J. Atmos. Chem. (IF 2.0) Pub Date : 2022-10-07 Lei Tong, Yu Liu, Yang Meng, Xiaorong Dai, Leijun Huang, Wenxian Luo, Mengrong Yang, Yong Pan, Jie Zheng, Hang Xiao
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Christian Junge – a pioneer in global atmospheric chemistry J. Atmos. Chem. (IF 2.0) Pub Date : 2022-08-24 Robert A. Duce, Russell R. Dickerson, Ian E. Galbally, James N. Galloway, Ruprecht Jaenicke, William C. Keene, Jos Lelieveld, Hiram Levy, Joseph M. Prospero, Lothar Schütz, Franz Slemr, Peter Winkler
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Analysis of the seasonal and fractional variability of metals bearing particles in an urban environment and their inhalability J. Atmos. Chem. (IF 2.0) Pub Date : 2022-08-20 Kamila Widziewicz-Rzońca, Halina Pyta, Krzysztof Słaby, Barbara Błaszczak, Patrycja Rogula-Kopiec, Barbara Mathews, Monika Błaszczak, Krzysztof Klejnowski
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Ionic composition, source identification of rainwater, and its contribution to nutrient deposition in monsoon, over Sundarban Mangrove forest J. Atmos. Chem. (IF 2.0) Pub Date : 2022-08-17 Natasha Majumder, Monami Dutta, Abhijit Chatterjee, Sneha Bakshi, Prasun Sanyal, Madhusudan Paul, Vandana Kumari Gupta, Avanti Acharya, Sandip Kumar Mukhopadhayay
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Temporary reduction in VOCs associated with health risk during and after COVID-19 in Maharashtra, India J. Atmos. Chem. (IF 2.0) Pub Date : 2022-08-17 Bhupendra Pratap Singh, Saumya Kumari, Arathi Nair, Sweety Kumari, Saikh Mohammad Wabaidur, Ram Avtar, Shakilur Rahman
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Air pollution trends measured from MODIS and TROPOMI: AOD and CO over Pakistan J. Atmos. Chem. (IF 2.0) Pub Date : 2022-05-24 Fazzal Qayyum, Salman Tariq, Zia ul-Haq, Usman Mehmood, Özgür Zeydan
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Elemental analysis of PM10 in southwest Mexico City and source apportionment using positive matrix factorization J. Atmos. Chem. (IF 2.0) Pub Date : 2022-05-16 Lourdes Verónica Mejía-Ponce, Alfonso Enrique Hernández-López, Javier Miranda-Martín-del-Campo, Juan Carlos Pineda-Santamaría, Salvador Reynoso-Cruces, Juan Antonio Mendoza-Flores, Alberto Antonio Espinosa-Guzmán
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Characteristics of the chemical composition and source apportionment of PM2.5 for a one-year period in Wuhan, China J. Atmos. Chem. (IF 2.0) Pub Date : 2022-03-31 Xiaoyu Zhang, Guixiang Ji, Xiaowu Peng, Lingya Kong, Xin Zhao, Rongrong Ying, Wenjun Yin, Tian Xu, Juan Cheng, Lin Wang
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Study of variation of aerosol optical properties over a high altitude station in Indian Western Himalayan region, palampur using raman lidar system J. Atmos. Chem. (IF 2.0) Pub Date : 2022-03-21 Shishir Kumar Singh, S. R. Radhakrishnan, Jaswant, Sumit Kumar Mishra, Devesh Kumar Shukla, Ashish Ranjan, Chhemendra Sharma
A Raman lidar system was operated along with the Microtops sunphotometer measurements to carry out the study of the variation of the optical properties of aerosols over Palampur (32.11° N and 76.53° E), India from 17th April to 11th May 2019. The lidar system is furnished with Raman (N2) channel and depolarization channel allowing independent measurement of Lidar Ratio (LR) and linear depolarization
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Emission of volatile organic compounds by plants on the floor of boreal and mid-latitude forests J. Atmos. Chem. (IF 2.0) Pub Date : 2022-03-15 Valery A. Isidorov, Ewa Pirożnikow, Viktoria L. Spirina, Alexander N. Vasyanin, Svetlana A. Kulakova, Irina F. Abdulmanova, Andrei A. Zaitsev
The forests of the boreal and mid-latitude zones of the Northern Hemisphere are the largest source of reactive volatile organic compounds (VOCs), which have an important impact on the processes occurring in the atmospheric boundary layer. However, the composition of biogenic emissions from them remains incompletely characterized, as evidenced by the significant excess OH radical concentrations predicted
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Estimation of aerosol acidity at a suburban site of Nanjing using machine learning method J. Atmos. Chem. (IF 2.0) Pub Date : 2022-02-26 Miaomiao Tao, Ying Xu, Jiaxing Gong, Qingyang Liu
Aerosol acidity is found to exert negative effects on ecosystem diversity and architectural appearance. Current analytical technology is unable to measure in-situ aerosol acidity (i.e., pH value) of ambient fine particle due to the absence of appropriate pH electrodes. Thermodynamic modeling methods including ISORROPIA II and Extended Aerosol Inorganics Model Version IV (E-AIM V) are mostly used in
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Long-range transport of Asian emissions to the West Pacific tropical tropopause layer J. Atmos. Chem. (IF 2.0) Pub Date : 2022-02-23 Victoria Treadaway, Elliot Atlas, Sue Schauffler, Maria Navarro, Rei Ueyama, Leonhard Pfister, Troy Thornberry, Andrew Rollins, James Elkins, Fred Moore, Karen Rosenlof
Rapid transport by deep convection is an important mechanism for delivering surface emissions of reactive halocarbons and other trace species to the tropical tropopause layer (TTL), a key region of transport to the stratosphere. Recent model studies have indicated that increased delivery of short-lived halocarbons to the TTL could delay stratospheric ozone recovery. We report here measurements in the
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Stable carbon and nitrogen isotopic characteristics of PM2.5 and PM10 in Delhi, India J. Atmos. Chem. (IF 2.0) Pub Date : 2022-01-23 Sudhir Kumar Sharma, Supriya G. Karapurkar, Damodar M. Shenoy, Tuhin Kumar Mandal
This study presents the chemical composition (carbonaceous and nitrogenous components) of aerosols (PM2.5 and PM10) along with stable isotopic composition (δ13C and δ15N) collected during winter and the summer months of 2015–16 to explore the possible sources of aerosols in megacity Delhi, India. The mean concentrations (mean ± standard deviation at 1σ) of PM2.5 and PM10 were 223 ± 69 µg m−3 and 328 ± 65 µg
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Spatio-temporal variation and sensitivity analysis of aerosol particulate matter during the COVID-19 phase-wise lockdowns in Indian cities J. Atmos. Chem. (IF 2.0) Pub Date : 2022-01-20 Ahamed Ibrahim S.N., Sri Shalini S, Ramachandran A, Palanivelu K
At the pandemic of COVID-19, the movement of business and other non-essential activities were majorly restricted at the end of March 2020 in India and continued in different lockdown phases until June 2020. By categorically, studying sensitivity towards anthropogenic factors with other environmental implications in urban Indian cities during phase-wise lockdown scenarios will pave the way for a refined
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Wet deposition of atmospheric inorganic reactive nitrogen (Nr) across an urban-industrial-rural transect of Nr emission hotspot (India) J. Atmos. Chem. (IF 2.0) Pub Date : 2021-10-26 Moh Naseem, U. C. Kulshrestha
The present study comprehensively reports the simultaneous measurement of wet deposition of total inorganic nitrogen (TIN; which is the sum of the NH4+-N and NO3−-N) at three different sites in Nr emission hotspot of Indo-Gangetic plain (IGP) over a year-long temporal scale from October 2017 to September 2018. At rural Meetli (MTL) site, urban Baraut (BRT) site and industrial Loni (LNI) site, the annual
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Size distributions and dry deposition fluxes of water-soluble inorganic nitrogen in atmospheric aerosols in Xiamen Bay, China J. Atmos. Chem. (IF 2.0) Pub Date : 2021-10-11 Wu, Shui-Ping, Li, Xiang, Gao, Yang, Cai, Mei-Jun, Xu, Chao, Schwab, James J., Yuan, Chung-Shin
Size-segregated aerosol particles were collected using a high volume MOUDI sampler at a coastal urban site in Xiamen Bay, China, from March 2018 to June 2020 to examine the seasonal characteristics of aerosol and water-soluble inorganic ions (WSIIs) and the dry deposition of nitrogen species. During the study period, the annual average concentrations of PM1, PM2.5, PM10, and TSP were 14.8 ± 5.6, 21
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Effects of light intensity on the production of VSLs from the marine diatom Ditylum brightwellii J. Atmos. Chem. (IF 2.0) Pub Date : 2021-09-17 Abe, Minami, Okuda, Yuki, Hashimoto, Shinya
Very short-lived substances (VSLs) are known to play an important role in ozone depletion in the troposphere and stratosphere. Environmental factors that influence the production of these compounds by marine phytoplankton, which is known to be the source of these compounds in open oceans, have not yet been well studied. Here we examined the effects of light intensity on the production of VSLs by the
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Seasonal characteristics and sources of carbonaceous components and elements of PM10 (2010–2019) in Delhi, India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-07-26 Sudhir Kumar Sharma, Rubiya Banoo, Tuhin Kumar Mandal
In this study we present the seasonal chemical characteristics and potential sources of PM10 at an urban location of Delhi, India during 2010˗2019. The concentrations of carbonaceous aerosols [organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC) and water insoluble organic carbon (WIOC)] and elements (Al, Fe, Ti, Cu, Zn, Mn, Pb, Cr, F, Cl, Br, P, S, K, As, Na, Mg, Ca, B,
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Kinetics for the photo-chemical degradation of Methyl butyrate in presence of Cl atoms and OH radicals J. Atmos. Chem. (IF 2.0) Pub Date : 2021-07-22 Ramya Cheramangalath Balan, Rajakumar Balla
The Cl/OH initiated temperature dependent photo-oxidative reaction kinetics of methyl butyrate (MB) were examined using a relative rate (RR) technique. Gas chromatography with flame ionization and mass spectrometric detection were used to monitor the concentration of the reactants and to identify the products. The temperature dependent kinetics of MB with Cl atoms were measured with respect to the
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Carbon isotopic signatures of carbonyls from roadside air observation J. Atmos. Chem. (IF 2.0) Pub Date : 2021-05-26 S.J. Guo
In this work, isotopic effects of carbonyls were evaluated during the simulation sampling of gaseous carbonyls by using a carbon isotope method developed, and then variation characteristics of carbon isotopic compositions were investigated for three dominant carbonyls including formaldehyde, acetaldehyde and acetone in the roadside air of Nanning for the first time. A small difference in δ13C values
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Aerosol removal coefficients based on 7 Be, 210 Pb, and 210 Po radionuclides in the urban atmosphere J. Atmos. Chem. (IF 2.0) Pub Date : 2021-05-18 Magdalena Długosz-Lisiecka
In this study, the aerosol removal coefficients based on 7Be, 210Pb and 210Po radionuclides in the urban air, in Lodz, Poland, were investigated over 3 years, between May 2014 and December 2017. Results representing the summer/warm and winter/cold seasons were applied to quantity and quality estimates of aerosol removal processes. The values for the removal processes were closely dependent on the meteorological
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Study of seasonal variation of PM 2.5 concentration associated with meteorological parameters at residential sites in Delhi, India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-04-21 Bhupendra Pratap Singh, Deepak Singh, Krishan Kumar, Vinod Kumar Jain
The seasonal variation of particulate matter and its relationship with meteorological parameters were measured at five different residential sites in Delhi. Sampling was carried out for one year including all three seasons (summer, monsoon, and winter). The yearly average concentration of particulate matter (PM2.5) was 135.16 ± 41.34 µg/m3. The highest average values were observed in winter (208.44
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Source identification and exposure assessment to PM 10 in the Eastern Carpathians, Romania J. Atmos. Chem. (IF 2.0) Pub Date : 2021-04-14 Réka Boga, Ágnes Keresztesi, Zsolt Bodor, Szende Tonk, Róbert Szép, Miruna Mihaela Micheu
Observations of particulate matter less than 10 µm (PM10) were conducted from January to December in 2015 in the Ciuc basin, Eastern Carpathians, Romania. Daily concentrations of PM10 ranged from 10.90 to 167.70 µg/m3, with an annual mean concentration of 46.31 µg/m3, which is higher than the European Union limit of 40 µg/m3. Samples were analyzed for a total of 21 elements. O, C and Si were the most
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Trace gases and PM 2.5 -bound metal abundance over a tropical urban environment, South India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-04-08 Abdul Shukkur M, Gopikrishna V.G, Vishnu N.G, Mahesh Mohan
Pre and Post-Monsoon levels of ambient SO2, NO2, PM2.5 and the trace metals Fe, Cu, etc. were measured at industrial and residential regions of the Kochi urban area in South India for a period of two years. The mean PM2.5, SO2 and NO2 concentrations across all sites were 38.98 ± 1.38 µg/m3, 2.78 ± 0.85 µg/m3 and 11.90 ± 4.68 µg/m3 respectively, which is lower than many other Indian cities. There was
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Source apportionment and health risks assessment of black carbon Aerosols in an urban atmosphere in East India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-04-05 Balram Ambade, Tapan Kumar Sankar
Black carbon (BC) along with PM2.5 (fine particular matters) plays an important role in the assessment health effect of human beings. Winter season campaign measurements carried out for BC concentrations by using 7 different wavelengths such as 370, 470, 520, 590, 660, 880, and 950 nm, handy aethalometer (AE-33, Magee Scientific, USA), at two different locations i.e., National Institute of Technology
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Ambient air characteristics of biogenic volatile organic compounds at a tropical evergreen forest site in Central Western Ghats of India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-28 Nidhi Tripathi, L. K. Sahu, Kashyap Patel, Ashwini Kumar, Ravi Yadav
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Wet deposition ethanol concentration at US atmospheric integrated research monitoring network (AIRMoN) sites J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-25 Bipin Sharma, J. David Felix, LaToya Myles, Tom Butler, Sarah Summerlin, Megumi S. Shimizu
Ethanol concentrations measured in 178 event-based wet deposition samples collected at five Atmospheric Integrated Research Monitoring Network (AIRMoN) sites in the Eastern US between February 2018 to January 2019 ranged from below the detection limit of 19 nM to 4160 nM. The volume weighted average ethanol concentration at each site ranged from 237 nM to 1375 nM. No significant correlation was observed
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Composition dependent density of ternary aqueous solutions of ionic surfactants and salts J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-21 Silvia M. Calderón, Nønne L. Prisle
Surfactants exist in atmospheric aerosols mixed with inorganic salts and can significantly influence the formation of cloud droplets due to bulk–surface partitioning and surface tension depression. To model these processes, we need continuous parametrizations of the concentration dependent properties of aqueous surfactant–salt solutions for the full composition range from pure water to pure surfactant
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Inorganic Ionic Composition of Rainwater at a High Altitude Station over the Western Ghats in Peninsular India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-21 V. V. Waghmare, M. Y. Aslam, L. Yang, P. D. Safai, G. Pandithurai
This study investigates chemical composition of rainwater (RW) and its contribution from different sources collected over the period of two years (2016 and 2017) at a high altitude location (1380 m above mean sea level) located at Mahabaleshwar situated in the Western Ghats in Peninsular India. The volume weighted mean pH of RW was found to vary between 4.57 and 7.51 (average 5.95) indicating overall
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Chemical composition and source attribution of PM2.5 and PM10 in Delhi-National Capital Region (NCR) of India: results from an extensive seasonal campaign J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-09 Moqtik Bawase, Yogesh Sathe, Hemant Khandaskar, Sukrut Thipse
Ambient particulate matter concentrations in Delhi and its peripheral towns has been a matter of serious concern in the last decade. Understanding the changing nature of the chemical composition of particulates, their spatial and seasonal variability can be utilized for identifying probable sources. This study presents an extensive dataset of the chemical composition of PM2.5 and PM10 collected using
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Emission estimates of trace gases (VOCs and NOx) and their reactivity during biomass burning period (2003–2017) over Northeast India J. Atmos. Chem. (IF 2.0) Pub Date : 2021-01-05 Kunal Bali, Amit Kumar, Sapna Chourasiya
The study analysed spatio-temporal distribution of fire radiative power (FRP) and estimates of trace gases [volatile organic compounds (VOCs) and nitrogen oxides (NO x )] along with their reactivity during biomass burning period of March (2003–2017) over the northeast region (NER), India. Reanalysis data of FRP along with emission rates of trace gases have been retrieved from Global Fire Assimilation
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Characterization of Rome’s rainwater in the early of 2018 aiming to find correlations between chemical-physical parameters and sources of pollution: a statistical study J. Atmos. Chem. (IF 2.0) Pub Date : 2020-11-26 Luca Ugo Fontanella, Mauro Tomassetti, Giovanni Visco, Maria Pia Sammartino
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Model for estimating activity coefficients in binary and ternary ionic surfactant solutions J. Atmos. Chem. (IF 2.0) Pub Date : 2020-11-07 Silvia M. Calderón, Jussi Malila, Nønne L. Prisle
We introduce the CMC based Ionic Surfactant Activity model (CISA) to calculate activity coefficients in ternary aqueous solutions of an ionic surfactant and an inorganic salt. The surfactant can be either anionic or cationic and in the present development, the surfactant and inorganic salts share a common counterion. CISA incorporates micellization into the Pitzer–Debye–Hückel (PDH) framework for activities
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Comparison of chemical characteristics of PM2.5 during two winters in Xiangtan City in south central China J. Atmos. Chem. (IF 2.0) Pub Date : 2020-10-23 Xiao-Yao Ma, Zheng-Hui Xiao, Li-Zhi He, Yun-Jiang Cao, Ji-Song Liu
To assess the efficacy of the “Implementation Details of Air Pollution Prevention and Control Action Plan”, the chemical composition of PM2.5 and other pollutants was determined during the winters of 2013–2014 and 2016–2017 at two urban sites in Xiangtan City, Hunan. The concentrations of PM2.5, SO2, and NO2 decreased from 146.0 to 94.5 μg/m3, 75.9 to 33.5 μg/m3, and 80.6 to 55.8 μg/m3, respectively
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Vertical distributions of the microscopic morphological characteristics and elemental composition of aerosols over India J. Atmos. Chem. (IF 2.0) Pub Date : 2020-08-14 Mukunda M. Gogoi, Roseline C. Thakur, Sahina Gazi, Vijayakumar S. Nair, Rahul Mohan, S. Suresh Babu
Particle morphology and elemental compositions are among the crucial parameters of aerosols required for accurate understanding of the climatic effect of aerosols in the earth-atmosphere system; yet their vertical distributions and region specific properties are poorly characterised due to sparse in-situ measurements. This is the first study to classify and quantify the vertical distributions of the
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Long term trends of wet deposition and atmospheric concentrations of nitrogen and sulfur compounds at EMEP site in Armenia J. Atmos. Chem. (IF 2.0) Pub Date : 2020-07-22 Yekaterina Perikhanyan, Gayane Shahnazaryan, Arpine Gabrielyan
This paper presents the trends of gaseous nitric acid, nitrogen dioxide, sulfur dioxide, ammonia and nitrate, ammonium, sulfate ions in atmospheric air, and nitrate, ammonium and sulfate ions in wet deposition over 2008–2018 in Armenia. Atmospheric nitrogen and sulfur concentrations were monitored by data obtained from filter pack samplers and glass sinter filters at background monitoring station of
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Sources of HULIS-C and its relationships with trace metals, ionic species in PM2.5 in suburban Shanghai during haze and non-haze days J. Atmos. Chem. (IF 2.0) Pub Date : 2020-06-19 Myat Sandar Win, Junyang Zeng, Chuanhe Yao, Mengfei Zhao, Guangli Xiu, Tingting Xie, Lanfang Rao, Luying Zhang, Hui Lu, Xinchun Liu, Qingyue Wang, Senlin Lu
Humic-like substances (HULIS), the most ubiquitous class of water-soluble organic compounds in the atmosphere could enhance the generation of reactive oxygen species (ROS), and play a significant role in impacting aerosol chemistry and health effects. In this study, twenty-three PM2.5 samples were collected in the atmosphere of suburban Shanghai from November 29 to December 17, 2015, and March 17 to
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Chemical characteristics of particulate matters and their emission sources over Varanasi during winter season J. Atmos. Chem. (IF 2.0) Pub Date : 2020-05-30 Vineet Pratap, Akhilesh Kumar, Shani Tiwari, Pradeep Kumar, Avneesh Kumar Tripathi, Abhay Kumar Singh
The chemical composition of particulate matter impacts both human health and climate. In this study, the chemical characteristics of particulate matter was measured for four months (November 2016–February 2017) at Varanasi, which is located in the middle of the Indo-Gangetic Basin (IGB). The daily observed mean values of PM 10 and PM 2.5 are 134 ± 48 and 213 ± 80 μg/m 3 , respectively, which exceeds
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Variation of carbonaceous species and trace elements in PM10 at a mountain site in the central Himalayan region of India J. Atmos. Chem. (IF 2.0) Pub Date : 2020-05-29 S. K. Sharma, Nikki Choudhary, Priyanka Srivastava, Manish Naja, N. Vijayan, Garima Kotnala, T. K. Mandal
Observations of carbonaceous species [organic carbon (OC), elemental carbon (EC), water soluble organic carbon (WSOC), carbonaceous aerosols (CAs) and secondary organic carbon (SOC) ] and trace elements (As, Cr, Ni, Zn, Na, Mg, Al, P, K, Ca, Ti, Fe, and Mn) in PM10 are made over a high altitude site (ARIES, Nainital, 29.4° N, 79.5° E, ~1958 m amsl) in the central Himalayan region during October 2018−February
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Effect of wind speed on the level of particulate matter PM10 concentration in atmospheric air during winter season in vicinity of large combustion plant J. Atmos. Chem. (IF 2.0) Pub Date : 2020-05-17 Robert Cichowicz, Grzegorz Wielgosiński, Wojciech Fetter
The concentrations of suspended particulate matter PM10 in two-month winter period, i.e. December–January in years 2009–2015, were analyzed in relation to the values of wind speed in that time. It was possible to analyze results of air pollution measurements performed in the measuring station from the perspective of their higher levels in winter seasons (so-called smog episodes). Results from 3 stations
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Physico-chemical characterization and sink mechanism of atmospheric aerosols over South-west India J. Atmos. Chem. (IF 2.0) Pub Date : 2020-03-19 Krishnakant B. Budhavant, Ranjeeta D. Gawhane, Pasumarthi Surya Prakash Rao, Hari Ram Chandrika Ranjendra Nair, Promod D. Safai
The properties of the atmospheric aerosols depend on the source region and on the modifications that occur during their transport in the air. We have studied physical and chemical properties of aerosols along with their sink mechanism over two locations in southwest India, an urban site (Pune) and well-established climate observatory at Sinhagad (SINH), which represents rural and high altitude site
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Spatio-temporal distribution and chemical composition of PM2.5 in Changsha, China J. Atmos. Chem. (IF 2.0) Pub Date : 2019-12-11 Nan-Nan Zhang, Yang Guan, Lei Yu, Fang Ma, Yi-Fan Li
The rapid economic development and significant expansion of urban agglomerations in China have resulted in issues associated with haze and photochemical smog. Central China, a transitional zone connecting the eastern coast and western interior, suffers from increasing atmospheric pollution. This study performed a spatio-temporal analysis of fine particulate matter (PM2.5) pollution in Changsha, a provincial
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Ship-borne observations of sea fog and rain chemistry over the North and South Pacific Ocean J. Atmos. Chem. (IF 2.0) Pub Date : 2019-12-01 Hyun Jae Kim, Taehyoung Lee, Taehyun Park, Gyutae Park, Jeffrey L. Collett, Keyhong Park, Joon Young Ahn, Jihee Ban, Seokwon Kang, Kyunghoon Kim, Seung-Myung Park, Eun Hea Jho, Yongjoo Choi
Clouds, fogs, and rain can serve as useful integrators of both atmospheric aerosols and soluble trace gases. To better understand the chemical characteristics of sea fog and rain in the North and South Pacific Ocean, fog and rain were measured aboard the R/V ARAON in 2012 and 2014, respectively, as part of the Ship-borne Pole-to-Pole Observations (SHIPPO) project. The mean sea fog pH (3.59) was lower
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Temporal and source assessments of organic and elemental carbon at sites in the northern South African interior J. Atmos. Chem. (IF 2.0) Pub Date : 2019-12-01 Petra Maritz, Johan P. Beukes, Pieter G. van Zyl, Catherine Liousse, Eric Gardrat, Avishkar Ramandh, Gabisile V. Mkhatshwa
Particulate matter (PM) can affect climate, air quality, human health, acid deposition and visibility, and contain a significant fraction of organic (OC) and elemental carbon (EC). Southern Africa is an important source region for OC and EC, however, little OC and EC data have been published for this region. This paper presents a multi-year, multi-site (an urban-industrial site in the Vaal Triangle
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Precipitation chemistry and stable isotopic characteristics at Wengguo in the northern slopes of the Himalayas J. Atmos. Chem. (IF 2.0) Pub Date : 2019-12-01 Subash Adhikari, Fan Zhang, Chen Zeng, Lekhendra Tripathee, Namita Paudel Adhikari, Jie Xu, Guanxing Wang
The major ions in precipitation can reflect the conditions of the atmosphere, while stable isotopic characteristics provide information on the moisture source. In order to understand the local hydro-chemical features and regional geochemical cycle, it is essential to assess the chemical composition of precipitation and the associated sources. Therefore, a total of 57 precipitation samples (2016 to
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PM10 carbonaceous aerosols and their real-time wet scavenging during monsoon and non-monsoon seasons at Delhi, India J. Atmos. Chem. (IF 2.0) Pub Date : 2019-08-21 Saurabh Sonwani, Umesh C. Kulshrestha
Real-time simultaneous measurements of rainwater and PM10 chemistry were carried out at Delhi during the year 2016–17 in order to assess the levels of carbonaceous species and their wet scavenging during monsoon and non-monsoon seasons at Delhi. The PM10 samples were collected Before Rain (BR), During Rain (DR) and After Rain (AR) events, while rainwater samples collected on an event basis. The ambient
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Optical properties of atmospheric particles over an urban site in Mexico City and a peri-urban site in Queretaro J. Atmos. Chem. (IF 2.0) Pub Date : 2019-08-02 Rafael N. Liñán-Abanto, O. Peralta, D. Salcedo, L. G. Ruiz-Suárez, P. Arnott, G. Paredes-Miranda, H. Alvarez-Ospina, T. Castro
Optical properties of atmospheric particles at Mexico City (UNAM) and Queretaro (JQRO) were measured with a Photoacoustic Extinctiometer (PAX) at 870 nm. The Mexico City Metropolitan Area has around 21 million inhabitants and Queretaro Metropolitan Area has little more than a million. Observations of meteorological parameters (relative humidity, solar radiation, and wind speed) were used to identify