Assessing the magnitude of PM2.5 polycyclic aromatic hydrocarbon emissions from residential solid fuel combustion and associated health hazards in South Asia

被引：8

作者：

Verma, Madhuri ^{[1
]}

Pervez, Shamsh ^{[1
]}

Chow, Judith C. ^{[2
,3
]}

Majumdar, Dipanjali ^{[4
]}

Watson, John G. ^{[2
,3
]}

Pervez, Yasmeen Fatima ^{[5
]}

Deb, Manas Kanti ^{[1
]}

Shrivas, Kamlesh ^{[1
]}

Jain, Vikas Kumar ^{[6
]}

Khan, Noor A. ^{[7
]}

Mandal, Papiya ^{[7
]}

Chakrabarty, Rajan K. ^{[8
]}

机构：

[1] Pt Ravishankar Shukla Univ, Sch Studies Chem, Raipur 492010, Chhattisgarh, India

[2] Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA

[3] Chinese Acad Sci, Inst Earth & Environm, Xian, Peoples R China

[4] Kolkata Zonal Ctr, CSIR Natl Environm Engn Res Inst, Kolkata 700107, W Bengal, India

[5] Govt Eklavya Coll, Dept Chem, Balod, CG, India

[6] Govt Engn Coll, Dept Chem, Raipur 492015, CG, India

[7] Delhi Zonal Ctr, NEERI, A-93-94,Phase 1, New Delhi 110028, India

[8] Washington Univ, Dept Energy Environm & Chem Engn, St Louis, MO 63130 USA

来源：

ATMOSPHERIC POLLUTION RESEARCH | 2021年 / 12卷 / 08期

基金：

美国国家科学基金会;

关键词：

Emission factors; Carcinogenic toxicity; Biofuels; Coal balls; Household heating activities; Solid fuel; Particulate  PAH(s) (p-PAHs); FINE ORGANIC AEROSOL; RISK-ASSESSMENT; INDOOR-AIR; PARTICULATE MATTER; DIAGNOSTIC RATIOS; WOOD COMBUSTION; PAH EMISSIONS; AMBIENT AIR; BIOMASS; POLLUTION;

D O I：

10.1016/j.apr.2021.101142

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In South Asia, combustion of solid fuel for residential heating and cooking is a major emission source of particulate-phase polycyclic aromatic hydrocarbons (p-PAHs), a potent carcinogen for human health. The emission factors (EFs) and source diagnostic ratios of PAHs currently used in regional inventory models have been estimated from controlled laboratory tests, which do not accurately reflect real-world combustion scenarios observed in rural Indian households. Consequently, the health effects associated with p-PAH levels in indoor and ambient air could be severely underestimated and undervalued. We performed a nationwide study across ten different states in the Indian subcontinent to evaluate the EFs and source diagnostic ratios of sixteen U.S. Environmental Protection Agency (EPA) identified high priority p-PAHs emitted from residential solid biomass combustion. Our estimated average annual EFs were 2.4-18.3 fold higher than those reported from previous laboratory-based investigations. Carcinogenic toxicity analysis shows that combustion of dung cake and coal ball, both widely used residential solid fuels, posed the most risk (80% and 59% respectively) in comparison to other PAHs owing to predominant emission of benzo[a]pyrene. Our findings underscore the importance of improved laboratory testing and field validations as crucial steps toward more accurate emission inventories and better assessment of public health impacts.

引用

页数：11