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https://www.readbyqxmd.com/read/29078189/status-of-indoor-air-pollution-iap-through-particulate-matter-pm-emissions-and-associated-health-concerns-in-south-asia
#1
REVIEW
Muhammad Junaid, Jabir Hussain Syed, Naeem Akhtar Abbasi, Muhammad Zaffar Hashmi, Riffat Naseem Malik, De-Sheng Pei
Exposure to particulate emissions poses a variety of public health concerns worldwide, specifically in developing countries. This review summarized the documented studies on indoor particulate matter (PM) emissions and their major health concerns in South Asia. Reviewed literature illustrated the alarming levels of indoor air pollution (IAP) in India, Pakistan, Nepal, and Bangladesh, while Sri Lanka and Bhutan are confronted with relatively lower levels, albeit not safe. To our knowledge, data on this issue are absent from Afghanistan and Maldives...
October 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/29055838/chemical-composition-and-source-apportionment-of-sub-micron-particles-during-wintertime-over-northern-india-new-insights-on-influence-of-fog-processing
#2
Prashant Rajput, Dharmendra Kumar Singh, Amit Kumar Singh, Tarun Gupta
A comprehensive study was carried out from central part of Indo-Gangetic Plain (IGP; at Kanpur) to understand abundance, temporal variability, processes (secondary formation and fog-processing) and source-apportionment of PM1-bound species (PM1: particulate matter of aerodynamic diameter ≤ 1.0 μm) during wintertime. A total of 50 PM1 samples were collected of which 33 samples represent submicron aerosol characteristics under non-foggy condition whereas 17 samples represent characteristics under thick foggy condition...
October 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29031165/characterization-and-morphological-analysis-of-individual-aerosol-of-pm10-in-urban-area-of-lucknow-india
#3
Sushil Kumar Bharti, Dhananjay Kumar, Sangeeta Anand, Poonam, Shymal Chandra Barman, Narendra Kumar
Airborne particulate matters were collected during the period of October 2015 to September 2016 in Lucknow at different sampling sites. The annual mean concentration of particulate matter was found to be relatively higher than the limits prescribed by National ambient air quality standards (NAAQS), United State Environmental Protection Agency (USEPA) and World Health Organization (WHO). Particulate matters were studied for morphological analysis, elemental composition and functional group variability with the help of Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS) followed by Fourier Transform Infrared spectroscopy (FTIR)...
September 14, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/29020648/ambient-black-carbon-particulate-matter-in-the-coal-region-of-dhanbad-india
#4
S Singh, S Tiwari, P K Hopke, C Zhou, J R Turner, A S Panicker, P K Singh
Light-absorbing, atmospheric particles have gained greater attention in recent years because of their direct and indirect impacts on regional and global climate. Atmospheric black carbon (BC) aerosol is a leading climate warming agent, yet uncertainties in the global direct aerosol radiative forcing remain large. Based on a year of aerosol absorption measurements at seven wavelengths, BC concentrations were investigated in Dhanbad, the coal capital of India. Coal is routinely burned for cooking and residential heat as well as in small industries...
February 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28968579/long-term-trends-and-spatial-patterns-of-satellite-retrieved-pm2-5-concentrations-in-south-and-southeast-asia-from-1999-to-2014
#5
Yusheng Shi, Tsuneo Matsunaga, Yasushi Yamaguchi, Zhengqiang Li, Xingfa Gu, Xuehong Chen
Fine particulate matter, or PM2.5, is a serious air pollutant and has significant effects on human health, including premature death. Based on a long-term series of satellite-retrieved PM2.5 concentrations, this study analyzed the spatial and temporal characteristics of PM2.5 in South and Southeast Asia (SSEA) from 1999 to 2014 using standard deviation ellipse and trend analyses. A health risk assessment of human exposure to PM2.5 between 1999 and 2014 was then undertaken. The results show that PM2.5 concentrations increased in most areas of SSEA from 1999 to 2014 and exceeded the World Health Organization average annual limit of primary PM2...
February 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28945513/assimilative-capacity-based-emission-load-management-in-a-critically-polluted-industrial-cluster
#6
Smaranika Panda, S M Shiva Nagendra
In the present study, a modified approach was adopted to quantify the assimilative capacity (i.e., the maximum emission an area can take without violating the permissible pollutant standards) of a major industrial cluster (Manali, India) and to assess the effectiveness of adopted air pollution control measures at the region. Seasonal analysis of assimilative capacity was carried out corresponding to critical, high, medium, and low pollution levels to know the best and worst conditions for industrial operations...
September 25, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28936270/characterization-of-five-year-observation-data-of-fine-particulate-matter-in-the-metropolitan-area-of-lahore
#7
Fatima Khanum, Muhammad Nawaz Chaudhry, Prashant Kumar
This study aims to assess the long-term trend of fine particles (PM2.5; ≤2.5 μm) at two urban sites of Lahore during 2007-2011. These sites represent two distinct areas: commercial (Townhall) and residential cum industrial (Township). The highest daily mean concentrations of PM2.5 were noted as 389 and 354 μg m(-3) at the Townhall and Township sites, respectively. As expected, the annual seasonal mean of PM2.5 was about 53 and 101% higher during winter compared with the summer and monsoon/post-monsoon seasons, respectively...
2017: Air Quality, Atmosphere, & Health
https://www.readbyqxmd.com/read/28917179/emission-reduction-potentials-of-improved-cookstoves-and-their-issues-in-adoption-an-indian-outlook
#8
REVIEW
Monikankana Sharma, S Dasappa
Biomass as a fuel for cooking is a common practice in rural India, and about 700 million people use traditional stoves to meet their energy demand. However, the thermal and the combustion efficiencies of these stoves are very low, leading to an inefficient use of biomass, and also, resulting in significant indoor air pollution. Research development has however led to the development of some improved stoves viz., natural draft and forced draft for both domestic as well as large scale cooking applications and government is trying to promote them...
December 15, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28915541/temporal-variability-in-aerosol-characteristics-and-its-radiative-properties-over-patiala-northwestern-part-of-india-impact-of-agricultural-biomass-burning-emissions
#9
D Sharma, A K Srivastava, K Ram, A Singh, D Singh
A comprehensive measurements of aerosol optical depth (AOD), particulate matter (PM) and black carbon (BC) mass concentrations have been carried out over Patiala, a semi-urban site in northwest India during October 2008 to September 2010. The measured aerosol data was incorporated in an aerosol optical model to estimate various aerosol optical parameters, which were subsequently used for radiative forcing estimation. The measured AOD at 500 nm (AOD500) shows a significant seasonal variability, with maximum value of 0...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28843898/role-of-heavy-metals-in-structuring-the-microbial-community-associated-with-particulate-matter-in-a-tropical-estuary
#10
V A Sheeba, Anas Abdulaziz, T R Gireeshkumar, Anirudh Ram, P S Rakesh, C Jasmin, P S Parameswaran
Particulate matter (PM), which are chemically and biochemically complicated particles, accommodate a plethora of microorganisms. In the present study, we report the influence of heavy metal pollution on the abundance and community structure of archaea and bacteria associated with PM samples collected from polluted and non-polluted regions of Cochin Estuary (CE), Southwest coast of India. We observed an accumulation of heavy metals in PM collected from CE, and their concentrations were in the order Fe > Zn > Mn > Cr > Pb > Cu > Cd > Co > Ni...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28830016/source-apportionment-of-pm2-5-in-north-india-using-source-oriented-air-quality-models
#11
Hao Guo, Sri Harsha Kota, Shovan Kumar Sahu, Jianlin Hu, Qi Ying, Aifang Gao, Hongliang Zhang
In recent years, severe pollution events were observed frequently in India especially at its capital, New Delhi. However, limited studies have been conducted to understand the sources to high pollutant concentrations for designing effective control strategies. In this work, source-oriented versions of the Community Multi-scale Air Quality (CMAQ) model with Emissions Database for Global Atmospheric Research (EDGAR) were applied to quantify the contributions of eight source types (energy, industry, residential, on-road, off-road, agriculture, open burning and dust) to fine particulate matter (PM2...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28804491/phylloremediation-of-air-pollutants-exploiting-the-potential-of-plant-leaves-and-leaf-associated-microbes
#12
REVIEW
Xiangying Wei, Shiheng Lyu, Ying Yu, Zonghua Wang, Hong Liu, Dongming Pan, Jianjun Chen
Air pollution is air contaminated by anthropogenic or naturally occurring substances in high concentrations for a prolonged time, resulting in adverse effects on human comfort and health as well as on ecosystems. Major air pollutants include particulate matters (PMs), ground-level ozone (O3), sulfur dioxide (SO2), nitrogen dioxides (NO2), and volatile organic compounds (VOCs). During the last three decades, air has become increasingly polluted in countries like China and India due to rapid economic growth accompanied by increased energy consumption...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28790379/discovery-and-ramifications-of-incidental-magn%C3%A3-li-phase-generation-and-release-from-industrial-coal-burning
#13
Yi Yang, Bo Chen, James Hower, Michael Schindler, Christopher Winkler, Jessica Brandt, Richard Di Giulio, Jianping Ge, Min Liu, Yuhao Fu, Lijun Zhang, Yuru Chen, Shashank Priya, Michael F Hochella
Coal, as one of the most economic and abundant energy sources, remains the leading fuel for producing electricity worldwide. Yet, burning coal produces more global warming CO2 relative to all other fossil fuels, and it is a major contributor to atmospheric particulate matter known to have a deleterious respiratory and cardiovascular impact in humans, especially in China and India. Here we have discovered that burning coal also produces large quantities of otherwise rare Magnéli phases (Ti x O2x-1 with 4 ≤ x ≤ 9) from TiO2 minerals naturally present in coal...
August 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28730356/seasonal-variation-of-chemical-composition-and-source-apportionment-of-pm2-5-in-pune-india
#14
Ranjeeta D Gawhane, Pasumarthi Surya Prakasa Rao, Krishnakant B Budhavant, Vinayak Waghmare, Dhananjay C Meshram, Pramod D Safai
Particulate matter with size less than or equal to 2.5 μm (PM2.5) samples were collected from an urban site Pune, India, during April 2015 to April 2016. The samples were analyzed for various chemical constituents, including water soluble inorganic ions, organic carbon (OC), and elemental carbon (EC). The yearly mean total mass concentration of PM2.5 at Pune was 37.3 μg/m(3), which is almost four times higher than the annual WHO standard (10 μg/m(3)), and almost equal to that recommended by the Central Pollution Control Board, India (40 μg/m(3))...
September 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28678614/emission-from-open-burning-of-municipal-solid-waste-in-india
#15
Kanchan Kumari, Sunil Kumar, R Vineel, Ankur Khare, Rakesh Kumar
Open burning of Municipal Solid Waste (MSW) is a potential non-point source of emission, which causes greater concern especially in developing countries like India. The lack of awareness about environmental impact of open burning among the public, and ignorance of the fact i.e., "Open burning is a source of emission of carcinogenic substances" by environmental organizations are major hindrances towards appropriate municipal solid waste management (MSWM) system in India. The present paper highlights about the open burning of MSW practices in India, the current and projected emission of 10 major pollutants, namely dioxin, furans, particulate matter, carbon monoxide, sulphur oxides, nitrogen oxides, benzene, toluene, ethyl benzene and 1-hexene emitted due to the open burning of MSW...
July 5, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28668997/chemical-constituents-of-carbonaceous-and-nitrogen-aerosols-over-thumba-region-trivandrum-india
#16
Prashant Hegde, Kimitaka Kawamura
Aerosol filter samples collected at a tropical coastal site Thumba over Indian region were analysed for water-soluble ions, total carbon and nitrogen, organic carbon (OC), elemental carbon (EC), and water-soluble organic carbon/nitrogen and their sources for different seasons of the year. For the entire study period, the order of abundance of ions showed the dominance of secondary ions, such as SO4(2-), NO3(-), and NH4(+). On average, Mg(2+) (56%), K(+) (11%), SO4(2-) (8.8%), and Ca(2+) (8.1%) contributions were from maritime influence...
October 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28636497/size-segregated-particulate-matter-and-its-association-with-respiratory-deposition-doses-among-outdoor-exercisers-in-dhanbad-city-india
#17
Sunil Kumar Gupta, Suresh Pandian Elumalai
Regular exercise improves physiological processes and yields positive health outcomes. However, it is relatively less known that particulate matter (PM) exposure during outdoor exercises may increase several respiratory health problems depending on PM levels. In this study, the respiratory deposition doses (RDDs) in head airway (HD), tracheobronchial (TB), and alveolar (AL) regions of various PM size fractions (<10, <2.5, and <1 μm; PM10, PM2.5, and PM1) were estimated in healthy male and female exercisers in urban outdoors and within house premises...
October 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28609619/high-efficiency-transparent-reusable-and-active-pm2-5-filters-by-hierarchical-ag-nanowire-percolation-network
#18
Seongmin Jeong, Hyunmin Cho, Seonggeun Han, Phillip Won, Habeom Lee, Sukjoon Hong, Junyeob Yeo, Jinhyeong Kwon, Seung Hwan Ko
Air quality has become a major public health issue in Asia including China, Korea, and India. Particulate matters are the major concern in air quality. We present the first environmental application demonstration of Ag nanowire percolation network for a novel, electrical type transparent, reusable, and active PM2.5 air filter although the Ag nanowire percolation network has been studied as a very promising transparent conductor in optoelectronics. Compared with previous particulate matter air filter study using relatively weaker short-range intermolecular force in polar polymeric nanofiber, Ag nanowire percolation network filters use stronger long-range electrostatic force to capture PM2...
June 13, 2017: Nano Letters
https://www.readbyqxmd.com/read/28606699/integrated-assessment-of-exposure-to-pm2-5-in-south-india-and-its-relation-with-cardiovascular-risk-design-of-the-chai-observational-cohort-study
#19
Cathryn Tonne, Maëlle Salmon, Margaux Sanchez, V Sreekanth, Santhi Bhogadi, Sankar Sambandam, Kalpana Balakrishnan, Sanjay Kinra, Julian D Marshall
While there is convincing evidence that fine particulate matter causes cardiovascular mortality and morbidity, little of the evidence is based on populations outside of high income countries, leaving large uncertainties at high exposures. India is an attractive setting for investigating the cardiovascular risk of particles across a wide concentration range, including concentrations for which there is the largest uncertainty in the exposure-response relationship. CHAI is a European Research Council funded project that investigates the relationship between particulate air pollution from outdoor and household sources with markers of atherosclerosis, an important cardiovascular pathology...
June 3, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28516352/air-pollution-and-respiratory-health-among-diabetic-and-non-diabetic-subjects-in-pune-india-results-from-the-wellcome-trust-genetic-study
#20
Morteza Abdullatif Khafaie, Sundeep Santosh Salvi, Chittaranjan Sakerlal Yajnik, Ajay Ojha, Behzad Khafaie, Sharad Damodar Gore
Diabetics may be more vulnerable to the harmful effects of ambient air pollutants than healthy individuals. But, the risk factors that lead to susceptibility to air pollution in diabetics have not yet been identified. We examined the effect of exposure to ambient PM10 on chronic symptoms and the pulmonary function tests (PFT) in diabetic and non-diabetic subjects. Also, to investigate possible determinants of susceptibility, we recruited 400 type 2 diabetic and 465 healthy subjects who were investigated for chronic respiratory symptoms (CRSs) and then underwent measurement of forced vital capacity (FVC) and forced expiratory volume 1 (FEV1) according to standard protocol...
June 2017: Environmental Science and Pollution Research International
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