气候变化领域集成服务门户(CCPortal): Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain

CCPortal

DOI	10.1016/j.atmosenv.2020.118088
	Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain
	Singh N.; Mhawish A.; Banerjee T.; Ghosh S.; Singh R.S.; Mall R.K.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	The short term effect of multiple air pollutants e.g. aerosols (black carbon, BC; PM2.5 and PM10) and trace gases (NO2, SO2, and O3) on all-cause mortality was systematically investigated in a typical urban pollution hotspot over central Indo-Gangetic Plain (IGP). To our knowledge, this would be the first report of mortality estimates for exposure to BC aerosols and multiple trace gases over South Asia. Daily all-cause mortality and ambient air quality were analyzed from 2009 to 2016 following a semiparametric quasi-Poisson regression model adjusting mean temperature (Tmean), relative humidity (RH), and long term time trend (Time) as potential confounders. Single pollutant model clearly established the significant impact of BC aerosols (against 10-unit increase in pollutant; 4.95%, 95% CI: 2.16–7.74), NO2 (2.38%, 95% CI: 0.88–3.87%) and PM2.5 exposure (1.06%, 95% CI: 0.45–1.66%) on mortality. The inclusion of co-pollutants in the multi-pollutant model increased the individual mortality risks for BC aerosols (7.3%). Mortality estimates were further stratified considering different effect modifiers viz. sex, age, place of death, and season. Almost in all the cases statistically insignificant differences in effect modification were noted for all the pollutants except PM10. We also explored a distributed lag nonlinear model to estimate the lag effect and all the pollutants showed significant lag up to 3 days while BC showed lag effect up to 5 days. The exposure-response curves for individual air pollutants were mostly linear, while a considerable increase in mortality was noted for an exposure >15 μg m−3 for BC aerosols and >60 μg m−3 for PM2.5. The effect estimates of air pollutants during haze and no-haze days were also defined. During haze days, mortality rose to 6.11% and 3.06% for each 10-unit increase in BC and NO2 exposure, respectively. Significant effect of BC aerosol exposure on human mortality was established which reaffirms its inclusion as a potential health regulator for epidemiological studies. © 2020 Elsevier Ltd
关键词	Black carbon Exposure Fine particles Mortality Time-series
语种	英语
scopus关键词	Air quality; Carbon; Gases; Nitrogen oxides; Regression analysis; Sulfur dioxide; Aerosol exposures; Ambient air quality; Different effects; Effect modifications; Epidemiological studies; Indo-Gangetic Plains; Poisson regression models; Short-term effects; Aerosols; black carbon; nitrogen dioxide; ozone; sulfate; aerosol; black carbon; haze; mortality; trace gas; urban pollution; adolescent; adult; aerosol; air analysis; air pollutant; air temperature; all cause mortality; ambient air; Article; biomass; child; female; gas; haze; human; humidity; male; mortality risk; particulate matter 10; particulate matter 2.5; PM10 exposure; PM2.5 exposure; priority journal; seasonal variation; South Asia; urban area; Gangetic Plain; South Asia
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248684
作者单位	DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India; Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, India; Department of Biostatistics, St Johns Medical College, Koramongala, Bangalore, India; Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, India
推荐引用方式 GB/T 7714	Singh N.,Mhawish A.,Banerjee T.,et al. Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain[J],2021,246.
APA	Singh N.,Mhawish A.,Banerjee T.,Ghosh S.,Singh R.S.,&Mall R.K..(2021).Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain.ATMOSPHERIC ENVIRONMENT,246.
MLA	Singh N.,et al."Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain".ATMOSPHERIC ENVIRONMENT 246(2021).