Variation of surface ozone exceedance around Klang Valley, Malaysia

被引：44

作者：

Ahamad, Fatimah ^{[1
]}

Latif, Mohd Talib ^{[1
,2
]}

Tang, Rosy ^{[1
]}

Juneng, Liew ^{[1
,2
]}

Dominick, Doreena ^{[3
]}

Juahir, Hafizan ^{[4
]}

机构：

[1] Univ Kebangsaan Malaysia, Sch Environm & Nat Resource Sci, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia

[2] Univ Kebangsaan Malaysia, Ctr Trop Climate Change Syst, Inst Climate Change, Bangi 43600, Selangor, Malaysia

[3] Univ Putra Malaysia, Dept Environm Sci, Fac Environm Studies, Serdang 43400, Selangor, Malaysia

[4] Univ Sultan Zainal Abidin, East Coast Environm Res Inst ESERI, Kuala Terengganu 21300, Terengganu, Malaysia

来源：

ATMOSPHERIC RESEARCH | 2014年 / 139卷

关键词：

Surface ozone; Nitrogen oxides; Cluster analysis; Back trajectory; METEOROLOGICALLY ADJUSTED TRENDS; POWER-PLANT PLUMES; CLUSTER-ANALYSIS; AIR-QUALITY; TROPOSPHERIC OZONE; IBERIAN PENINSULA; PATTERNS; BASIN; CHEMISTRY; NORTHEAST;

D O I：

10.1016/j.atmosres.2014.01.003

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The total hourly surface ozone (O-3) exceedance from the 100 ppbv hourly O-3 standard set by the Department of Environment Malaysia (DOE) was analysed, as elevated O-3 concentrations pose health risks to humans and harms vegetation. Air quality data from 2008 to 2010 were obtained from a total of seven stations located around the west coast of Peninsular Malaysia. Cheras and Shah Alam monitoring stations consistently showed a high frequency of noncompliance to the DOE standards. Hierarchical Agglomerative Cluster Analysis (HACA) was performed on the daily maximum O-3 concentration to analyse the spatial variability. Three distinct clusters were obtained from HACA runs on the daily maximum O-3 and the results reflected O-3 exceedance pattern among the stations. Analysis of the monthly average O-3, nitrogen oxide (NO), and nitrogen dioxide (NO2) concentrations indicated a strong localised influence on the O-3 exceedance patterns. It can be concluded that the O-3 exceedance pattern in the Klang Valley area is strongly influenced by local pollutant emission and dispersion characteristics. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：116 / 127

页数：12

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