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On-line Access: 2011-06-06

Received: 2011-02-15

Revision Accepted: 2011-07-01

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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.9 P.702-709

http://doi.org/10.1631/jzus.A11b0043


Mortality weighting-based method for aggregate urban air risk assessment


Author(s):  Qing-yu Zhang, Guo-jin Sun, Wei-li Tian, Yu-mei Wei, Si-mai Fang, Jin-feng Ruan, Guo-rong Shan, Yao Shi

Affiliation(s):  Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China, Department of Chemical Engineering, Zhejiang University, Hangzhou 310027, China, Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 311202, China, College of Information, University of International Business and Economic, Beijing 100029, China

Corresponding email(s):   qy_zhang@zju.edu.cn

Key Words:  Integrated air risk, Mortality-weighted synthetic evaluation (MWSE), Air quality index (AQI), Air pollution


Qing-yu Zhang, Guo-jin Sun, Wei-li Tian, Yu-mei Wei, Si-mai Fang, Jin-feng Ruan, Guo-rong Shan, Yao Shi. Mortality weighting-based method for aggregate urban air risk assessment[J]. Journal of Zhejiang University Science A, 2011, 12(9): 702-709.

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author="Qing-yu Zhang, Guo-jin Sun, Wei-li Tian, Yu-mei Wei, Si-mai Fang, Jin-feng Ruan, Guo-rong Shan, Yao Shi",
journal="Journal of Zhejiang University Science A",
volume="12",
number="9",
pages="702-709",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A11b0043"
}

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%T Mortality weighting-based method for aggregate urban air risk assessment
%A Qing-yu Zhang
%A Guo-jin Sun
%A Wei-li Tian
%A Yu-mei Wei
%A Si-mai Fang
%A Jin-feng Ruan
%A Guo-rong Shan
%A Yao Shi
%J Journal of Zhejiang University SCIENCE A
%V 12
%N 9
%P 702-709
%@ 1673-565X
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A11b0043

TY - JOUR
T1 - Mortality weighting-based method for aggregate urban air risk assessment
A1 - Qing-yu Zhang
A1 - Guo-jin Sun
A1 - Wei-li Tian
A1 - Yu-mei Wei
A1 - Si-mai Fang
A1 - Jin-feng Ruan
A1 - Guo-rong Shan
A1 - Yao Shi
J0 - Journal of Zhejiang University Science A
VL - 12
IS - 9
SP - 702
EP - 709
%@ 1673-565X
Y1 - 2011
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A11b0043


Abstract: 
This paper deals with a mortality-weighted synthetic evaluation (MWSE) method for evaluating urban air risk. Sulphur dioxide (SO2), nitrogen oxide (NOx), and particulate matter (PM10) were used as pollution indices. The urban area of Hangzhou, China is divided into 756 grid cells, with a resolution of 1 km×1 km, and is evaluated using the MWSE and the air quality index (AQI), a widely-used method to evaluate ambient air quality and air risk. In an evaluation of one day in April 2004, the surface areas categorized as levels I and III, as defined by the integrated air risk evaluation, were 27.3% and 3.3% lower, respectively, than grades I and III defined by the AQI evaluation. Meanwhile, the areas classified as level II or above level III by the integrated air risk evaluation were 55.1% and 101.1% higher, respectively, than grade II or above grade III when using the AQI evaluation. From this comparison, we find that the MWSE method is more sensitive than the AQI method. The AQI method uses a single index to assess integrated air quality and is therefore unable to evaluate integrated air risks due to multiple pollutants. The MWSE method overcomes this problem, providing improved accuracy in air risk assessment.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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