Atmospheric HCHO, O3, NO2 Monitoring and Analysis in Pearl River Delta

Abstract

Abstract:

The long-path differential optical absorption spectroscopy (DOAS) technique is used for monitoring HCHO, O3 and NO2 in Jiangmen City in the Pearl River Delta from Oct. 15 to Nov. 19, 2008. Combined with meteorological data, the analysis of major pollutants HCHO, O3, NO2 diurnal variation characteristics in Jiangmen City is made. At the same time, the main sources of pollution in Jiangmen City are analyzed. The correlation analysis and trend comparison of HCHO with other types of pollutants concentration data indicate that the source of HCHO in Jiangmen City comes mainly from secondary pollution. Results of multiple linear regression also confirmed this conclusion.

Key words: photochemical pollution, HCHO, O3, NO2, DOAS, source

CLC Number:

X83
O433.5

WANG Man-Hua, Xie-Pin-Hua, Qin-Min, Li-Ang, Xu-Jin, Dong-Yun-Sheng, Shi-Peng, Liu-Jian-Guo, Liu-Wen-Qing. Atmospheric HCHO, O3, NO2 Monitoring and Analysis in Pearl River Delta[J]. Journal of Atmospheric and Environmental Optics, 2010, 5(2): 118-127.

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