NDLI: Effect of dibenzopyrene measurement on assessing air quality in Beijing air and possible implications for human health.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Layshock, Julie Simonich, Staci Massey Anderson, Kim A.
Spatial Coverage	China
Description	Country affiliation: United States Author Affiliation: Layshock J ( Environmental and Molecular Toxicology Department, Oregon State University, 1007 ALS. Corvallis, OR 97331, USA. julielayshock@gmail.com)
Abstract	Size fractionated particulate matter (PM) was collected in summer and winter from Beijing, China for the characterization of an expanded list of PAHs and evaluation of air pollution metrics. Summertime ΣPAHs on PM was 14.6 ± 29(PM 1.5), 0.88 ± 0.49(PM 1.5-7.2) and 0.29 ± 0.076(PM 7.2) ng m(-3) air while wintertime concentrations were 493 ± 206(PM 1.5), 26.7 ± 14(PM 1.5-7.2) and 5.3 ± 2.5(PM 7.2) ng m(-3) air. Greater than 90% of the carcinogenic PAHs were concentrated on PM(1.5). Dibenzopyrene isomers made up a significant portion (â¼30%) of the total carcinogenic PAH load during the winter. To our knowledge, this is the first report of dibenzopyrenes in the Beijing atmosphere and among the few studies that report these highly potent PAHs in ambient particulate matter. Lifetime risk calculations indicated that 1 out of 10,000 to over 6 out of 100 Beijing residents may have an increased risk of lung cancer due to PAH concentration. Over half of the lifetime risk was attributed to Σdibenzopyrenes. The World Health Organization and Chinese daily PM(10) standard was exceeded on each day of the study, however, PAH limits were only exceeded during the winter. The outcomes of the air pollution metrics were highly dependent on the individual PAHs measured and seasonal variation.
File Format	HTM / HTML
ISSN	14640325
e-ISSN	14640333
DOI	10.1039/c0em00057d
Journal	Journal of Environmental Monitoring
Issue Number	12
Volume Number	12
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2010-12-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Environmental Health Environmental Monitoring Lung Neoplasms Epidemiology Polycyclic Hydrocarbons, Aromatic Air Pollutants Environmental Exposure Epidemiological Monitoring Particle Size Seasons Research Support, N.i.h., Extramural Research Support, U.s. Gov't, Non-p.h.s.
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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