DOI: 10.1016/j.atmosenv.2015.06.025
Scopus记录号: 2-s2.0-84951570323
论文题名: Characterization and source apportionment of health risks from ambient PM10 in Hong Kong over 2000-2011
作者: Li Z ; , Yuan Z ; , Li Y ; , Lau A ; K ; H ; , Louie P ; K ; K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 122 起始页码: 892
结束页码: 899
语种: 英语
英文关键词: Health risk
; Hong Kong
; PM10
; Source apportionment
; Spatiotemporal variation
Scopus关键词: Air quality
; Airships
; Coal combustion
; Diseases
; Factorization
; Health
; Quality management
; Research aircraft
; Risk assessment
; Risk perception
; Trace elements
; Air quality monitoring stations
; Atmospheric particulate matter
; Hong-kong
; Non-cancer risks
; Positive Matrix Factorization
; Secondary nitrates
; Source apportionment
; Spatio-temporal variation
; Health risks
; coal
; trace metal
; air quality
; biomass burning
; cancer
; coal
; combustion
; concentration (composition)
; health risk
; particulate matter
; pollutant source
; pollution monitoring
; public health
; traffic emission
; air monitoring
; air pollution
; air quality
; ambient air
; Article
; biomass
; cancer risk
; combustion
; exhaust gas
; health hazard
; Hong Kong
; inhalation
; model
; particulate matter
; pollution monitoring
; priority journal
; risk assessment
; China
; Hong Kong
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Atmospheric particulate matter (PM) pollution is a major public health concern in Hong Kong. In this study, the spatiotemporal variations of health risks from ambient PM10 from seven air quality monitoring stations between 2000 and 2011 were analyzed. Positive matrix factorization (PMF) was adopted to identify major source categories of ambient PM10 and quantify their contributions. Afterwards, a point-estimated risk model was used to identify the inhalation cancer and non-cancer risks of PM10 sources. The long-term trends of the health risks from classified local and non-local sources were explored. Furthermore, the reason for the increase of health risks during high PM10 days was discussed. Results show that vehicle exhaust source was the dominant inhalation cancer risk (ICR) contributor (72%), whereas trace metals and vehicle exhaust sources contributed approximately 27% and 21% of PM10 inhalation non-cancer risk (INCR), respectively. The identified local sources accounted for approximately 80% of the ICR in Hong Kong, while contribution percentages of the non-local and local sources for INCR are comparable. The clear increase of ICR at high PM days was mainly attributed to the increase of contributions from coal combustion/biomass burning and secondary sulfate, while the increase of INCR at high PM days was attributed to the increase of contributions from the sources coal combustion/biomass burning, secondary nitrate, and trace metals. This study highlights the importance of health risk-based source apportionment in air quality management with protecting human health as the ultimate target. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81353
Appears in Collections: 气候变化事实与影响
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作者单位: Division of Environment, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong; Atmospheric Research Center, HKUST Fok Ying Tung Graduate School, Nansha IT Park, Nansha, Guangzhou, China; Hong Kong Environmental Protection Department, Revenue Tower, 5 Gloucester Road, Wan Chai, Hong Kong
Recommended Citation:
Li Z,, Yuan Z,, Li Y,et al. Characterization and source apportionment of health risks from ambient PM10 in Hong Kong over 2000-2011[J]. Atmospheric Environment,2015-01-01,122