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Citation
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HERO ID
2214500
Reference Type
Journal Article
Title
Ambient levels and temporal variations of PM2.5 and PM10 at a residential site in the mega-city, Nanjing, in the western Yangtze River Delta, China
Author(s)
Shen, G; Yuan, SiY; Xie, YuN; Xia, SiJ; Li, Li; Yao, YuK; Qiao, Y; Zhang, Jie; Zhao, Q; Ding, AiJ; Li, Bin; Wu, H
Year
2014
Is Peer Reviewed?
1
Journal
Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineering
ISSN:
1093-4529
EISSN:
1532-4117
Volume
49
Issue
2
Page Numbers
171-178
Language
English
PMID
24171416
DOI
10.1080/10934529.2013.838851
Web of Science Id
WOS:000326309000005
Abstract
The deteriorating air quality in eastern China including the Yangtze River Delta is attracting growing public concern. In this study, we measured the ambient PM10 and fine PM2.5 in the mega-city, Nanjing at four different times. The 24-h average PM2.5 and PM10 mass concentrations were 0.033-0.234 and 0.042-0.328 mg/m(3), respectively. The daily PM10 and PM2.5 concentrations were 2.9 (2.7-3.2, at 95% confidence interval) and 4.2 (3.8-4.6) times the WHO air quality guidelines of 0.025 mg/m(3) for PM2.5 and 0.050 mg/m(3) for PM10, respectively, which indicated serious air pollution in the city. There was no obvious weekend effect. The highest PM10 pollution occurred in the wintertime, with higher PM2.5 loadings in the winter and summer. PM2.5 was correlated significantly with PM10 and the average mass fraction of PM2.5 in PM10 was about 72.5%. This fraction varied during different sampling periods, with the lowest PM2.5 fraction in the spring but minor differences among the other three seasons.
Keywords
Particulate matter; temporal variation; weekend effect; western YRD region
Tags
•
ISA-PM (2019)
•
MSA-Multipollutant Exposure Metric Review
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