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https://www.readbyqxmd.com/read/28115698/transient-climate-and-ambient-health-impacts-due-to-national-solid-fuel-cookstove-emissions
#1
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
#2
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...
January 11, 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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...
October 29, 2016: 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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/27617025/holi-colours-contain-pm10-and-can-induce-pro-inflammatory-responses
#14
Katrin Bossmann, Sabine Bach, Conny Höflich, Kerttu Valtanen, Rita Heinze, Anett Neumann, Wolfgang Straff, Katrin Süring
BACKGROUND: At Holi festivals, originally celebrated in India but more recently all over the world, people throw coloured powder (Holi powder, Holi colour, Gulal powder) at each other. Adverse health effects, i.e. skin and ocular irritations as well as respiratory problems may be the consequences. The aim of this study was to uncover some of the underlying mechanisms. METHODS: We analysed four different Holi colours regarding particle size using an Electric field cell counting system...
2016: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/27600288/a-review-of-the-impact-of-fireworks-on-particulate-matter-in-ambient-air
#15
Chi-Chi Lin
Implications Unique physical and chemical properties of ambient PM during short-term FW/FC burning can lead to a substantial increase in adverse health effects compared with during non-FW/FC periods. Further epidemiological and toxicological research into the potential health effects resulting from exposure to various pollutants from FW/FC is vital. Geographical distributions of PM concentrations during FW displays highlight the importance of implementing PM controls at the regional level and formulating stricter protective environmental legislation, particularly in Asian (e...
September 6, 2016: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/27599053/tethered-balloon-born-and-ground-based-measurements-of-black-carbon-and-particulate-profiles-within-the-lower-troposphere-during-the-foggy-period-in-delhi-india
#16
D S Bisht, S Tiwari, U C Dumka, A K Srivastava, P D Safai, S D Ghude, D M Chate, P S P Rao, K Ali, T Prabhakaran, A S Panickar, V K Soni, S D Attri, P Tunved, R K Chakrabarty, P K Hopke
The ground and vertical profiles of particulate matter (PM) were mapped as part of a pilot study using a Tethered balloon within the lower troposphere (1000m) during the foggy episodes in the winter season of 2015-16 in New Delhi, India. Measurements of black carbon (BC) aerosol and PM <2.5 and 10μm (PM2.5 & PM10 respectively) concentrations and their associated particulate optical properties along with meteorological parameters were made. The mean concentrations of PM2.5, PM10, BC370nm, and BC880nm were observed to be 146...
December 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27568195/effects-of-seasonal-variation-on-oxidative-stress-physiology-in-natural-population-of-toad-bufo-melanostictus-clues-for-analysis-of-environmental-pollution
#17
Luna Samanta, Biswaranjan Paital
Natural population of Bufo melanostictus in response to environmental cues shows several physiologic changes such as reproductive activity, hibernation, aestivation and metabolic depression in different seasons. We investigated the effects of seasonal fluctuations on oxidative stress (OS) physiology biomarkers, such as endogenous (ELPx) and induced (ILPx) lipid peroxidation, front-line redox regulatory enzymes (superoxide dismutase: SOD and catalase) and two non-enzyme antioxidant metabolites (ascorbic acid and reduced glutathione) in liver, gonad and cerebral hemisphere of toads collected from the Bhubaneswar area of India, where temperature fluctuates considerably rising to the highest in summer (∼46 °C) and being lowest in winter (<10 °C)...
November 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27552859/implementing-the-us-air-quality-standard-for-pm2-5-worldwide-can-prevent-millions-of-premature-deaths-per-year
#18
Despina Giannadaki, Jos Lelieveld, Andrea Pozzer
BACKGROUND: Air pollution by fine aerosol particles is among the leading causes of poor health and premature mortality worldwide. The growing awareness of this issue has led several countries to implement air pollution legislation. However, populations in large parts of the world are still exposed to high levels of ambient particulate pollution. The main aim of this work is to evaluate the potential impact of implementing current air quality standards for fine particulate matter (PM2...
2016: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/27544655/influence-of-ligands-on-metal-speciation-transport-and-toxicity-in-a-tropical-river-during-wet-monsoon-period
#19
Anindita Gogoi, G G Tushara Chaminda, Alicia K J An, Daniel D Snow, Yusong Li, Manish Kumar
Metal speciation and transport are seldom assessed in densely populated Tropical River. An evaluation of the phase distribution for Copper (Cu), Lead (Pb) and Zinc (Zn) along with chemical speciation, variance with different water quality parameters and toxicity were conducted in the Brahmaputra River of India from upstream to downstream during wet (monsoon) periods in July 2014. Results indicated that metal free ions and carbonates were dominant in the inorganic fractions whereas metal concentrations were negligible in the anionic inorganic fractions...
November 2016: Chemosphere
https://www.readbyqxmd.com/read/27458701/mutagenic-and-genotoxic-potential-of-native-air-borne-particulate-matter-from-industrial-area-of-rourkela-city-odisha-india
#20
Durgesh Nandini Das, Niharika Sinha, Prajna Paramita Naik, Prashanta Kumar Panda, Subhadip Mukhopadhyay, Sanjaya K Mallick, Itisam Sarangi, Sujit K Bhutia
In this study, we examined potential adverse health effect of particulate matter (PM) collected from industrial areas of Rourkela, Odisha, India. Results indicate that PM in these areas contains benzo[a]pyrene in addition to other unidentified molecules. Ames test revealed the above PM to be highly mutagenic. Further studies of PM in HaCaT cells suggest its DNA damaging potential which may lead to apoptosis. Generation of reactive oxygen and nitrogen species following PM exposure may be an early event in the PM induced apoptosis...
September 2016: Environmental Toxicology and Pharmacology
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