气候变化领域集成服务门户(CCPortal): Using gas-phase air quality sensors to disentangle potential sources in a Los Angeles neighborhood

CCPortal

DOI	10.1016/j.atmosenv.2020.117519
	Using gas-phase air quality sensors to disentangle potential sources in a Los Angeles neighborhood
	Collier-Oxandale A.; Wong N.; Navarro S.; Johnston J.; Hannigan M.
发表日期	2020
ISSN	1352-2310
卷号	233
英文摘要	In the late summer of 2016, our team deployed a network of low-cost air quality sensing systems in partnership with community-based organizations in a neighborhood in South Los Angeles, California. Residents of this community were concerned about possible emissions from local oil and gas activity, however in addition to these potential emissions, the neighborhood is also subject to a complex mixture of pollutants from other nearby sources including major highways. For this deployment, metal-oxide VOC sensors were quantified to provide methane (CH4) and total non-methane hydrocarbon (TNMHCs) concentration estimates. This data along with other sensor signals, meteorological data, and community member observations was used to examine the composition and possible origins of observed emissions. The sensor network displayed expected environmental trends and highlighted short-term elevations in CH4 and/or TNMHCs, which we were then able to investigate more closely. The results indicated that sources of both combusted and volatilized hydrocarbons were likely affecting air quality throughout the community, including near the site of the local oil and gas activity. This deployment may serve as a model for how multi-sensor systems deployed in networks can be leveraged to better understand sources in complex areas, potentially supporting future community-based air quality research. © 2020 Elsevier Ltd
关键词	Air quality Gas-phase sensors Low-cost sensors Multi-sensor VOC sensors
语种	英语
scopus关键词	Air quality; Complex networks; Hydrocarbons; Metals; Meteorology; Methane; Sensor networks; Community-based; Community-based organizations; Environmental trends; Meteorological data; Multi-sensor systems; Non-methane hydrocarbons; Oil and gas activities; Potential sources; Gas emissions; hydrocarbon; metal oxide; methane; volatile organic compound; air quality; atmospheric pollution; concentration (composition); neighborhood; pollutant source; sensor; volatile organic compound; air quality; Article; boundary layer; California; combustion; concentration (parameter); controlled study; gas; neighborhood; priority journal; signal noise ratio; California; Los Angeles [California]; South Los Angeles; 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/249127
作者单位	Environmental Engineering, University of Colorado Boulder, United States; Redeemer Community Partnership, United States; Esperanza Community Housing, United States; Keck School of Medicine, University of Southern California, United States; Mechanical Engineering University of Colorado Boulder, United States
推荐引用方式 GB/T 7714	Collier-Oxandale A.,Wong N.,Navarro S.,et al. Using gas-phase air quality sensors to disentangle potential sources in a Los Angeles neighborhood[J],2020,233.
APA	Collier-Oxandale A.,Wong N.,Navarro S.,Johnston J.,&Hannigan M..(2020).Using gas-phase air quality sensors to disentangle potential sources in a Los Angeles neighborhood.ATMOSPHERIC ENVIRONMENT,233.
MLA	Collier-Oxandale A.,et al."Using gas-phase air quality sensors to disentangle potential sources in a Los Angeles neighborhood".ATMOSPHERIC ENVIRONMENT 233(2020).