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https://www.readbyqxmd.com/read/28431317/ambient-pm2-5-exposure-and-premature-mortality-burden-in-the-holy-city-varanasi-india
#1
Vaishali Jain, Sagnik Dey, Sourangsu Chowdhury
More than 3 million population residing in the holy city Varanasi and sub-urban areas is exposed to very high level of fine particulate matter (PM2.5) from various sources. Continuous monitoring by Central Pollution Control Board started only in 2015; therefore what was the pollution level in the past and how it has changed over the years are not known. We use MODIS aerosol products to infer PM2.5 and examine 15-year climatology. Data shows a rapid (1.5-3% per year) increase in PM2.5 in the last 15 years and high (87% days in a year) persistence of PM2...
April 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28420188/health-risk-assessment-of-indoor-air-quality-socioeconomic-and-house-characteristics-on-respiratory-health-among-women-and-children-of-tirupur-south-india
#2
Krassi Rumchev, Yun Zhao, Jeffery Spickett
Background: Indoor air pollution is still considered as one of the leading causes of morbidity and mortality worldwide and especially in developing countries, including India. This study aims to assess social, housing, and indoor environmental factors associated with respiratory health among mothers and children. Methods: The study was conducted in the city of Tirupur, South India. We quantitatively assessed the indoor exposure to fine particulate matter (PM2.5) and carbon monoxide in relation to respiratory health among women and children...
April 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28376835/indoor-air-pollution-and-its-association-with-poor-lung-function-microalbuminuria-and-variations-in-blood-pressure-among-kitchen-workers-in-india-a-cross-sectional-study
#3
Amarnath Singh, Chandrasekharan Nair Kesavachandran, Ritul Kamal, Vipin Bihari, Afzal Ansari, Parappurath Abdul Azeez, Prem Narain Saxena, Anil Kumar Ks, Altaf Hussain Khan
BACKGROUND: The present study is an attempt to explore the association between kitchen indoor air pollutants and physiological profiles in kitchen workers with microalbuminuria (MAU) in north India (Lucknow) and south India (Coimbatore). METHODS: The subjects comprised 145 control subjects, 233 kitchen workers from north India and 186 kitchen workers from south India. Information related to the personal and occupational history and health of the subjects at both locations were collected using a custom-made questionnaire...
April 4, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28347611/ambient-particulate-matter-and-carbon-monoxide-at-an-urban-site-of-india-influence-of-anthropogenic-emissions-and-dust-storms
#4
Ravi Yadav, L K Sahu, G Beig, Nidhi Tripathi, S N A Jaaffrey
Continuous measurements of PM2.5, PM10 and CO were conducted at an urban site of Udaipur in India from April 2011 to March 2012. The annual mean concentrations of PM2.5, PM10 and CO were 42 ± 17 μg m(-3), 114 ± 31 μg m(-3) and 343 ± 136 ppbv, respectively. Concentrations of both particulate and CO showed high values during winter/pre-monsoon (dry) period and lowest in the monsoon season (wet). Local anthropogenic emission and long-range transport from open biomass burning sources along with favourable synoptic meteorology led to elevated levels of pollutants in the dry season...
March 24, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28291535/the-health-burden-and-economic-costs-averted-by-ambient-pm2-5-pollution-reductions-in-nagpur-india
#5
Tunde O Etchie, Saravanadevi Sivanesan, Gregory O Adewuyi, Kannan Krishnamurthi, Padma S Rao, Ayotunde T Etchie, Ajay Pillarisetti, Narendra K Arora, Kirk R Smith
National estimates of the health and economic burdens of exposure to ambient fine particulate matter (PM2.5) in India reveal substantial impacts. This information, often lacking at the local level, can justify and drive mitigation interventions. Here, we assess the health and economic gains resulting from attainment of WHO guidelines for PM2.5 concentrations - including interim target 2 (IT-2), interim target 3 (IT-3), and the WHO air quality guideline (AQG) - in Nagpur district to inform policy decision making for mitigation...
March 10, 2017: Environment International
https://www.readbyqxmd.com/read/28276550/particle-size-specific-distribution-of-perfluoro-alkyl-substances-in-atmospheric-particulate-matter-in-asian-cities
#6
H Ge, E Yamazaki, N Yamashita, S Taniyasu, A Ogata, M Furuuchi
Seasonal and local characteristics of perfluorinated alkylated substances (PFASs) were examined using size-segregated particles including an ultrafine range. The examination included sampling and analysis of ambient particles collected at four sites located in different environments in three different countries, Japan (Kanazawa and Okinawa), Hong Kong and India. To minimize the evaporation artefacts derived from PFASs during the sampling, an air sampler that permitted particles smaller than 0.1 μm (PM0.1) to be separated at a moderate pressure drop (<5-15 kPa), was used for all of the air sampling procedures...
April 19, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28237305/investigation-of-pm2-5-mass-concentration-over-india-using-a-regional-climate-model
#7
Sherin Hassan Bran, Rohit Srivastava
Seasonal variation of PM2.5 (Particulate Matter <2.5 μm) mass concentration simulated from WRF-Chem (Weather Research and Forecasting coupled with Chemistry) over Indian sub-continent are studied. The simulated PM2.5 are also compared with the observations during winter, pre-monsoon, monsoon and post-monsoon seasons of 2008. Higher value of simulated PM2.5 is observed during winter followed by post-monsoon, while lower values are found during monsoon. Indo-Gangetic Basin (IGB) exhibits high amount of PM2...
February 22, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28115698/transient-climate-and-ambient-health-impacts-due-to-national-solid-fuel-cookstove-emissions
#8
Forrest G Lacey, Daven K Henze, Colin J Lee, Aaron van Donkelaar, Randall V Martin
Residential solid fuel use contributes to degraded indoor and ambient air quality and may affect global surface temperature. However, the potential for national-scale cookstove intervention programs to mitigate the latter issues is not yet well known, owing to the spatial heterogeneity of aerosol emissions and impacts, along with coemitted species. Here we use a combination of atmospheric modeling, remote sensing, and adjoint sensitivity analysis to individually evaluate consequences of a 20-y linear phase-out of cookstove emissions in each country with greater than 5% of the population using solid fuel for cooking...
February 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28076315/meteorological-parameters-and-pollutants-on-asthma-exacerbation-in-bangalore-india-an-ecological-retrospective-time-series-study
#9
Kirthana U Kunikullaya, Ambarish Vijayaraghava, P Asha, Radhika Kunnavil, B V MuraliMohan
BACKGROUND: Literature has shown a significant association between asthma exacerbations and pollutant levels during that time. There is very limited evidence in India, especially Bangalore, for impacts of meteorological changes and pollution on asthma hospital admissions in adults. The objective was to study the impact of air pollution and meteorological parameters on asthma exacerbation in Bangalore. METHODS: This study quantitatively analyzed the relation between acute exacerbations of asthma and related admissions to the hospital with the air pollution and the meteorological conditions during that time...
March 1, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28039660/seasonal-variations-and-source-profile-of-n-alkanes-in-particulate-matter-pm10-at-a-heavy-traffic-site-delhi
#10
Sarika Gupta, Ranu Gadi, T K Mandal, S K Sharma
Delhi is one of the most polluted cities in the world. The generation of aerosols in the lower atmosphere of the city is mainly due to a large amount of natural dust advection and sizable anthropogenic activities. The compositions of organic compounds in aerosols are highly variable in this region and need to be investigated thoroughly. Twenty-four-hour sampling to assess concentrations of n-alkanes (ng/m(3)) in PM10 was carried out during January 2015 to June 2015 at Indira Gandhi Delhi Technical University for Women (IGDTUW) Campus, Delhi, India...
January 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27981476/disability-adjusted-life-years-and-economic-cost-assessment-of-the-health-effects-related-to-pm2-5-and-pm10-pollution-in-mumbai-and-delhi-in-india-from-1991-to-2015
#11
Kamal Jyoti Maji, Anil Kumar Dikshit, Ashok Deshpande
Particulate air pollution is becoming a serious public health concern in urban cities in India due to air pollution-related health effects associated with disability-adjusted life years (DALYs) and economic loss. To obtain the quantitative result of health impact of particulate matter (PM) in most populated Mumbai City and most polluted Delhi City in India, an epidemiology-based exposure-response function has been used to calculate the attributable number of mortality and morbidity cases from 1991 to 2015 in a 5-year interval and the subsequent DALYs, and economic cost is estimated of the health damage based on unit values of the health outcomes...
December 15, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27979614/oyster-reef-restoration-in-controlling-coastal-pollution-around-india-a-viewpoint
#12
Parthasarathi Chakraborty
Coastal waters receive large amounts of nutrients and pollutants from different point and nonpoint sources through bays and estuaries. Excess supply of nutrients in coastal waters may have detrimental effects, leading to hypoxia and anoxia from eutrophication. Reduction in concentrations of excess nutrients/pollutants in bays/estuarine system is must for healthy coastal ecosystem functioning. Conservations of bays, estuaries and coastal zones are must for sustainable development in any maritime country. Excellent ability of oyster in removing and controlling the concentrations of nutrients, pollutants, suspended particulate matters from bays and estuarine waters stimulated me to provide a viewpoint on oyster reef restoration in controlling nutrient/heavy metals fluxes and marine coastal pollution around India...
December 12, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27956874/globalization-and-pollution-tele-connecting-local-primary-pm2-5-emissions-to-global-consumption
#13
Jing Meng, Junfeng Liu, Yuan Xu, Dabo Guan, Zhu Liu, Ye Huang, Shu Tao
Globalization pushes production and consumption to geographically diverse locations and generates a variety of sizeable opportunities and challenges. The distribution and associated effects of short-lived primary fine particulate matter (PM2.5), a representative of local pollution, are significantly affected by the consumption through global supply chain. Tele-connection is used here to represent the link between production and consumption activity at large distances. In this study, we develop a global consumption-based primary PM2...
November 2016: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/27889850/chemical-fractionation-and-health-risk-assessment-of-particulate-matter-bound-metals-in-pune-india
#14
Rohi Jan, Ritwika Roy, Suman Yadav, P Gursumeeran Satsangi
The present study deals with the assessment of sequential extraction of particulate matter (PM)-bound metals and the potential health risks associated with them in a growing metropolitan city (Pune) of India. The average mass concentration of both PM2.5-10 and PM2.5 exceeded the National Ambient Air Quality Standards. Significant seasonal variation in mass concentration was found for both size fractions of PM with higher values in winter season and lower in monsoon. Chemical species of the studied trace metals in PM exhibited significant differences, due to difference in sources of pollution...
November 26, 2016: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/27796981/seasonal-characteristics-of-water-soluble-inorganic-ions-and-carbonaceous-aerosols-in-total-suspended-particulate-matter-at-a-rural-semi-arid-site-kadapa-india
#15
G Reshma Begam, C Viswanatha Vachaspati, Y Nazeer Ahammed, K Raghavendra Kumar, R R Reddy, S K Sharma, Mohit Saxena, T K Mandal
To better understand the sources as well as characterization of regional aerosols at a rural semi-arid region Kadapa (India), size-resolved composition of atmospheric particulate matter (PM) mass concentrations was sampled and analysed. This was carried out by using the Anderson low-pressure impactor for a period of 2 years during March 2013-February 2015. Also, the variations of organic carbon (OC), elemental carbon (EC) and water-soluble inorganic ion components (WSICs) present in total suspended particulate matter (TSPM) were studied over the measurement site...
January 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27751634/size-distributions-of-n-alkanes-fatty-acids-and-fatty-alcohols-in-springtime-aerosols-from-new-delhi-india
#16
Mingjie Kang, Pingqing Fu, Shankar G Aggarwal, Sudhanshu Kumar, Ye Zhao, Yele Sun, Zifa Wang
Size-segregated aerosol samples were collected in New Delhi, India from March 6 to April 6, 2012. Homologous series of n-alkanes (C19C33), n-fatty acids (C12C30) and n-alcohols (C16C32) were measured using gas chromatography/mass spectrometry. Results showed a high-variation in the concentrations and size distributions of these chemicals during non-haze, haze, and dust storm days. In general, n-alkanes, n-fatty acids and n-alcohols presented a bimodal distribution, peaking at 0.7-1.1 μm and 4.7-5.8 μm for fine modes and coarse modes, respectively...
December 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27745674/identification-and-elucidation-of-anthropogenic-source-contribution-in-pm10-pollutant-insight-gain-from-dispersion-and-receptor-models
#17
Debananda Roy, Gurdeep Singh, Pankaj Yadav
Source apportionment study of PM10 (Particulate Matter) in a critically polluted area of Jharia coalfield, India has been carried out using Dispersion model, Principle Component Analysis (PCA) and Chemical Mass Balance (CMB) techniques. Dispersion model Atmospheric Dispersion Model (AERMOD) was introduced to simplify the complexity of sources in Jharia coalfield. PCA and CMB analysis indicates that monitoring stations near the mining area were mainly affected by the emission from open coal mining and its associated activities such as coal transportation, loading and unloading of coal...
October 2016: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/27743040/study-on-airborne-heavy-metals-in-industrialized-urban-area-of-delhi-india
#18
Papiya Mandal, R Sarkar, A Mandal, P Patel, N Kamal
This study assessed the concentrations of airborne heavy metals (HMs) in particulate matter with a cutoff size of 10 µm (i.e., PM10) in an industrialized urban area (Naraina Industrial Area) of New Delhi, India. The samples were collected from January to December, 2011. The annual mean concentrations of selected HMs were as follows As (0.002 ± 0.002), Cd (0.030 ± 0.020), Co (0.003 ± 0.002), Cr (0.170 ± 0.081), Cu (0.183 ± 0.120), Fe (4.774 ± 1.889), Mn (0.258 ± 0.145), Ni (0...
December 2016: Bulletin of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/27741449/spatio-temporal-measurement-of-indoor-particulate-matter-concentrations-using-a-wireless-network-of-low-cost-sensors-in-households-using-solid-fuels
#19
Sameer Patel, Jiayu Li, Apoorva Pandey, Shamsh Pervez, Rajan K Chakrabarty, Pratim Biswas
Many households use solid fuels for cooking and heating purposes. There is currently a knowledge gap in our understanding of the variations in indoor air quality throughout the household as most of the studies focus on the areas in the close proximity of the cookstove. A low-cost wireless particulate matter (PM) sensor network was developed and deployed in households in Raipur, India to establish the spatio-temporal variation of PM concentrations. The data from multiple sensors were acquired in real-time with a wireless system...
January 2017: Environmental Research
https://www.readbyqxmd.com/read/27628702/role-of-metals-in-free-radical-generation-and-genotoxicity-induced-by-airborne-particulate-matter-pm2-5-from-pune-india
#20
Suman Yadav, Rohi Jan, Ritwika Roy, P Gursumeeran Satsangi
In the present study, metal-facilitated free radical generation in particulate matter (PM) and its association with deoxyribonucleic acid (DNA) damage were studied. The examined data showed that the concentration of fine PM in Pune exhibited seasonal variations. Inductively coupled plasma-atomic emission spectrometry (ICP-AES) was used to examine the metal composition, which showed the presence of metals such as Cu, Zn, Mn, Fe, Co, Cr, Pb, Cd, and Ni. Fe metal was present in the highest concentrations in both the seasons, followed by Zn...
December 2016: Environmental Science and Pollution Research International
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