气候变化领域集成服务门户(CCPortal): Decrease in ambient polycyclic aromatic hydrocarbon concentrations in California's San Joaquin Valley 2000

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DOI	10.1016/j.atmosenv.2020.117818
	Decrease in ambient polycyclic aromatic hydrocarbon concentrations in California's San Joaquin Valley 2000–2019
	Noth E.M.; Lurmann F.; Perrino C.; Vaughn D.; Minor H.A.; Hammond S.K.
发表日期	2020
ISSN	13522310
卷号	242
英文摘要	As part of our ongoing research to understand the impact of polycyclic aromatic hydrocarbon (PAH) exposures on health in the San Joaquin Valley, we evaluated airborne PAH concentration data collected over 19 years (2000–2019) at the central air monitoring site in Fresno, California. We found a dramatic decline in outdoor airborne PAH concentrations between 2000 and 2004 that has been maintained through 2019. This decline was present in both the continuous particle-bound PAHs and the filter-based individual PAHs. The decline was more extreme when restricted to winter concentrations. Annual mean PAHs concentrations in 2017–2018 of particle-bound PAHs were 6.8 ng/m3 or 62% lower than 2000–2001. The decline for winter concentrations of continuous particle-bound PAHs between winter 2019 and winter 2001 was 17.2 ng/m3, a drop of 70%. The 2001 to 2018 decline in average wintertime concentrations for filter-based individual PAHs was 82%. We examined industrial emissions, on-road vehicle emissions, residential wood burning, and agricultural and biomass waste burning as possible explanations. The major decline in PAHs from 2000 to 2004 was coincident with and most likely due to a similar decline in the amount of agricultural and biomass waste burned in Fresno and Madera Counties. On-road vehicle emissions and residential wood burning did not decline until after 2005. Industrial emissions were too low (2% of total) to explain such large decreases in PAH concentrations. © 2020 Elsevier Ltd
英文关键词	Agricultural burning; Air pollution; Biomass burning; California; Polycyclic aromatic hydrocarbons; Residential wood burning; Traffic-related air pollution
语种	英语
scopus关键词	Agricultural robots; Agriculture; Housing; Incineration; Industrial emissions; Mineral oils; Road vehicles; Solid wastes; Air monitoring; Biomass wastes; Concentration data; Filter-based; On-road vehicle emissions; Polycyclic aromatic hydrocarbon (PAH); Residential wood burning; San Joaquin Valley; Polycyclic aromatic hydrocarbons; polycyclic aromatic hydrocarbon; concentration (composition); industrial emission; PAH; pollution exposure; spatiotemporal analysis; agricultural waste; air monitoring; airborne particle; ambient air; Article; biomass; California; combustion; comparative study; concentration (parameter); controlled study; exhaust gas; priority journal; winter; wood; California; Fresno [California]; Madera County; San Joaquin Valley; United States
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/152987
作者单位	Division of Environmental Health Sciences, School of Public Health, University of California Berkeley, 2121 Berkeley Way #5302, Berkeley, CA 94720-7360, United States; Sonoma Technology Inc, 1450 N. McDowell Blvd, Petaluma, CA 94954, United States
推荐引用方式 GB/T 7714	Noth E.M.,Lurmann F.,Perrino C.,等. Decrease in ambient polycyclic aromatic hydrocarbon concentrations in California's San Joaquin Valley 2000–2019[J],2020,242.
APA	Noth E.M.,Lurmann F.,Perrino C.,Vaughn D.,Minor H.A.,&Hammond S.K..(2020).Decrease in ambient polycyclic aromatic hydrocarbon concentrations in California's San Joaquin Valley 2000–2019.Atmospheric Environment,242.
MLA	Noth E.M.,et al."Decrease in ambient polycyclic aromatic hydrocarbon concentrations in California's San Joaquin Valley 2000–2019".Atmospheric Environment 242(2020).