ANALYSIS OF CHARACTERISTICS AND SOURCE APPORTION OF METAL POLLUTION IN PM<sub>2.5</sub> IN TYPICAL METROPOLITAN CITIES WITH HAZE POLLUTION

DENG Lin-li; ZHANG Kai-shan

doi:10.13205/j.hjgc.202005020

Volume 38 Issue 5

Aug. 2020

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DENG Lin-li, ZHANG Kai-shan. ANALYSIS OF CHARACTERISTICS AND SOURCE APPORTION OF METAL POLLUTION IN PM2.5 IN TYPICAL METROPOLITAN CITIES WITH HAZE POLLUTION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 113-119. doi: 10.13205/j.hjgc.202005020

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DENG Lin-li, ZHANG Kai-shan. ANALYSIS OF CHARACTERISTICS AND SOURCE APPORTION OF METAL POLLUTION IN PM_2.5 IN TYPICAL METROPOLITAN CITIES WITH HAZE POLLUTION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(5): 113-119. doi: 10.13205/j.hjgc.202005020

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ANALYSIS OF CHARACTERISTICS AND SOURCE APPORTION OF METAL POLLUTION IN PM_2.5 IN TYPICAL METROPOLITAN CITIES WITH HAZE POLLUTION

doi: 10.13205/j.hjgc.202005020

DENG Lin-li,
ZHANG Kai-shan^,

School of Architecture and Environment, Sichuan University, Chengdu 610065, China

Received Date: 2019-09-12

Abstract

Abstract

Metal elements adsorbed in PM_2.5 imposed a great threat to the public health, due to its strong stability and enrichment. In order to characterize the metal elements absorbed in PM_2.5, four metropolitan cities with severe haze pollution, i.e., Beijing, Chengdu, Shanghai and Guangzhou, were selected for this study. This paper summarized key studies from 2013 to 2017 related to air pollution, especially PM_2.5 and its metal composition in the selected cities. Analysis showed that metal elements in PM_2.5 of the selected cities varied both spatially and temporally due to regional meteorological conditions, industrial structures and pollution sources. Secondary aerosols, coal burning and biomass combustion were the three key sources to metal elements in PM_2.5 for all the selected cities. While the contributions from other sources varied by cities. The findings implied that the impact of industrial structure on metal elements apportionment in PM_2.5 should be further investigated, which would provide insights regarding policy making for effective air pollution control.
- PM_2.5,
- metal elements,
- pollution level,
- source apportionment

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