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Atmosphere 2016, 7(11), 140; doi:10.3390/atmos7110140

Characteristics of Particulate Carbon in Precipitation during the Rainy Season in Xiamen Island, China

1
Key Lab of Global Change and Marine-Atmospheric Chemistry of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
3
Anji Meteorological Bureau of Zhejiang Province, Zhengjiang 313300, China
*
Author to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Received: 14 September 2016 / Revised: 19 October 2016 / Accepted: 25 October 2016 / Published: 28 October 2016
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Abstract

Measuring wet deposition of organic carbon (OC) and elemental carbon (EC) aerosol is crucial for the understanding of their circulation and climate effect. To further understand the wet deposition of particulate carbon (OC and EC), precipitation samples were collected from April to August 2014 on Xiamen Island in China. EC and water insoluble organic carbon (WIOC) concentrations were analyzed using a thermal optical method to investigate temporal variations and wet deposition fluxes. The average EC and WIOC concentrations were 7.3 μgC·L−1 and 495.3 μgC·L−1, respectively, which are both comparable to the results reported in European areas. EC and WIOC concentrations were higher in spring than in summer. Higher EC concentrations were found in April, which were probably associated with the transport of air masses from northern continental areas. Higher WIOC concentrations were found in May and were mainly attributed to air masses from the South China Sea. Lower concentrations of EC and WIOC in the summer were primarily due to the clean air masses transported from the ocean. The wet deposition flux was calculated as the product of concentration and precipitation amount. Average wet deposition fluxes of EC and WIOC were estimated to be 0.6 mgC·m−2·month−1 and 36.7 mgC·m−2·month−1, respectively. Wet deposition fluxes of EC and WIOC exhibited similar concentration trends. The largest flux in EC wet deposition occurred in April (1.8 mgC·m−2·month−1), while the largest flux in WIOC wet deposition occurred in May (63.1 mgC·m−2·month−1). View Full-Text
Keywords: precipitation; particulate carbon; elemental carbon; water insoluble organic carbon; wet deposition precipitation; particulate carbon; elemental carbon; water insoluble organic carbon; wet deposition
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhao, S.; Chen, L.; Yan, J.; Shi, P.; Li, Y.; Li, W. Characteristics of Particulate Carbon in Precipitation during the Rainy Season in Xiamen Island, China. Atmosphere 2016, 7, 140.

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