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Concentration and Influence Factors of Atmospheric Organochlorine Pesticides in a Coastal Island in Fujian, Southeast China

Category: Aerosol and Atmospheric Chemistry

Accepted Manuscripts
DOI: 10.4209/aaqr.2018.04.0126
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Liping Jiao 1,2,3, Qibin Lao3,4, Liqi Chen 3, Fajin Chen4, Xia Sun3, Meixun Zhao1,2

  • 1 Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China), Ministry of Education, Qingdao 266100, China
  • 2 Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
  • 3 Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanic Administration (SOA), Third Institute of Oceanography, SOA, Xiamen 361005, China
  • 4 Guangdong Ocean University, Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction, Zhanjiang 524088, China


Lower OCPs level was observed in the coastal island.
Seasonal OCP level influenced by meteorological conditions and TOC levels.
Stable carbon isotope was used to trace pollutant sources.
Higher OCPs levels mainly from polluted air mass of Northern China.


Atmospheric particulate samples collected from Pingtan Island in Fujian province were analyzed for 20 organochlorine pesticides (OCPs) with the aims of elucidating the contamination levels and their influence factors, and providing more comprehensive and fundamental data for the risk assessment of OCPs in this coastal area. The concentration of total OCPs ranged from ND~27.25 pg m-3 (an average of 4.30 ± 4.07 pg m-3) and ND~13.16 pg m-3 (an average of 3.11 ± 2.54 pg m-3) in 2006 and 2007 respectively, and the level obviously lower than urban areas. HCH and DDT were the predominant contaminants, and those contaminants are mainly historical residues. Obvious seasonal variations in OCP levels correlate significantly with total particulate levels; higher concentrations of most OCP compounds appeared in winter, whereas lower concentrations appeared in summer. The distribution pattern of the level of most OCP compounds might be directly or indirectly influenced by meteorological conditions, and TOC is an important factor influencing the persistence of these OCPs in atmospheric particulates. The source of atmospheric particulates was traced by stable carbon isotopes, which indicate that the increased levels of OCPs in winter and spring influenced by the source of polluted air mass during the “heating season” of Northern China. The cancer risk probability was evaluated based on the residual levels of OCPs, and the results show that dermal contact was the primary pathway affecting human health, and the effect of OCP residuals in atmospheric particulates of the coastal area could not be neglected.


Organochlorine pesticides Fujian coastal area Carbon stable isotope Atmospheric particulates Meteorological conditions

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Accepted Manuscripts
DOI: 10.4209/aaqr.2018.04.0129