Analysis of the Effect of Meteorological Factors on PM2.5-Associated PAHs during Autumn-Winter in Urban Nanchang

Xiaojun  Liu; Chunmei  Li; Hong  Tu; Yanyan  Wu; Chen  Ying; Qing  Huang; Sheng  Wu; Qinghong  Xie; Zhaokang  Yuan; Yuanan  Lu

doi:10.4209/aaqr.2016.08.0351

Analysis of the Effect of Meteorological Factors on PM2.5-Associated PAHs during Autumn-Winter in Urban Nanchang

Xiaojun Liu¹, Chunmei Li¹, Hong Tu², Yanyan Wu³, Chen Ying², Qing Huang¹, Sheng Wu¹, Qinghong Xie³, Zhaokang Yuan¹, Yuanan Lu ¹^,3

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¹School of Public Health, Nanchang University, Nanchang, Jiangxi 330006, China
²Department of Malaria, National Institute of Parasitic Disease, Chinese Center for Disease Control and Prevention, Huangpu, Shanghai 200023, China
³Department of Public Health Sciences, University of Hawaii at Mānoa, Honolulu, Hawaii 96822, USA

Received: August 9, 2016
Revised: November 23, 2016
Accepted: November 23, 2016
Download Citation: ||https://doi.org/10.4209/aaqr.2016.08.0351

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Cite this article:
Liu, X., Li, C., Tu, H., Wu, Y., Ying, C., Huang, Q., Wu, S., Xie, Q., Yuan, Z. and Lu, Y. (2016). Analysis of the Effect of Meteorological Factors on PM2.5-Associated PAHs during Autumn-Winter in Urban Nanchang. Aerosol Air Qual. Res. 16: 3222-3229. https://doi.org/10.4209/aaqr.2016.08.0351

HIGHLIGHTS

The PM_2.5 Mass concentration in fall and winter of Nanchang was over the national standard.

1^st study to determine the association of PM_2.5 with PAHs in Nanchang of China.

Analysis of meteorological factors for their effect on the concentration and variation of PCA.

15 types of PAHs were detected to be over the "ambient air quality standard" of China.

Demonstrated the PAH was affected by daily temperature but not daily wind and rainfall.

ABSTRACT

The objectives of this study were to examine the association between PM_2.5-associated polycyclic aromatic hydrocarbons (PAHs) and their meteorological factors, and the relationship between PM_2.5-associated PAH concentrations and temperature, air pressure and air humidity. Data collected by Center for Disease Control (CDC) in Nanchang urban areas during the fall and winter seasons of 2014–2015 were analyzed by using high performance liquid chromatography (HPLC). Our study showed that the PM_2.5 mass concentration had a mean of 0.088 µg m^–3. Our results showed that the total concentration of PAHs in Nanchang was 22.54 ng m^–3 (RSD: 8.50) and 15 different types of PAHs examined in this study all exceeded the China national standard. Multiple regression analysis revealed that the daily average concentration of total PAH was significantly associated with the temperature and daily minimum humidity (p < 0.05), but not daily wind speed and rainfall. Principal component analysis and characteristic ratio study indicated that the source of PAHs in PM_2.5 were mainly from vehicle exhaust and coal and gas combustion in Nanchang.

Keywords: PM2.5; Meteorological factors; Polycyclic Aromatic Hydrocarbons (PAHs); HPLC

HIGHLIGHTS

ABSTRACT

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