Seasonal variations, source apportionment and dry deposition of chemical species of total suspended particulate in Pengjia Yu Island, East China Sea

Li Yu-Xiao; Liu Shu-Han; Luo Li; Yang Shu-Di; Lu Bin-Yu; Wang Chen; Hsu Shih-Chieh; Kao Shuh-Ji

doi:10.1016/j.marpolbul.2023.114608

Seasonal variations, source apportionment and dry deposition of chemical species of total suspended particulate in Pengjia Yu Island, East China Sea

Mar Pollut Bull. 2023 Feb:187:114608. doi: 10.1016/j.marpolbul.2023.114608. Epub 2023 Jan 16.

Authors

Li Yu-Xiao¹, Liu Shu-Han², Luo Li³, Yang Shu-Di¹, Lu Bin-Yu⁴, Wang Chen², Hsu Shih-Chieh⁵, Kao Shuh-Ji⁶

Affiliations

¹ School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang, China; State Key Laboratory of Marine Resources Utilization in South China Sea, Hainan University, Haikou, China.
² State Key Laboratory of Marine Resources Utilization in South China Sea, Hainan University, Haikou, China.
³ State Key Laboratory of Marine Resources Utilization in South China Sea, Hainan University, Haikou, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China. Electronic address: L.Luo@hainanu.edu.cn.
⁴ School of Water Resources and Environmental Engineering, East China University of Technology, Nanchang, China.
⁵ Research Center for Environmental Changes, Academia Sinica, Taipei, China.
⁶ State Key Laboratory of Marine Resources Utilization in South China Sea, Hainan University, Haikou, China; Collaborative Innovation Center of Marine Science and Technology, Hainan University, Haikou 570228, China. Electronic address: sjkao@hainanu.edu.cn.

PMID: 36652864
DOI: 10.1016/j.marpolbul.2023.114608

Abstract

Total of 172 total suspended particulate (TSP) samples and its chemical compositions were collected and analyzed from January to December 2010 in Pengjia Yu Island, an open region in East China Sea (ECS). Despite the predominance of sea-salt major ions (Na⁺, Cl^-), the presence of non-sea-salt SO₄^2- (nss-SO₄^2-) and NO₃^- as well as combustion-derived trace metals clearly establishes the impact of anthropogenic sources over ECS. The annual contributions of coal, heavy-fuel oil and traffic to the measured chemical species were 21.0 %, 15.0 % and 15.5 %, respectively. Especially in spring, the contributions of crustal minerals to measured chemical species during dust period (33.6 %) were higher than that (13.2 %) during non-dust period. The calculated annual average dry deposition fluxes for trace metals and total inorganic nitrogen were 246.1 ± 345.8 μg/m²/d and 2950.4 ± 2245.0 μg/m²/d, suggesting that atmospheric deposition is an important source of nutrient elements for the south of ECS.

Keywords: Aerosols; East China Sea; Seasonal variations; Source apportionment; Trace metals; Water-soluble inorganic ions.

MeSH terms

Aerosols / analysis
Air Pollutants* / analysis
China
Coal / analysis
Dust / analysis
Environmental Monitoring
Ions / analysis
Minerals
Particulate Matter* / analysis
Seasons

Substances

Particulate Matter
Air Pollutants
Dust
Ions
Minerals
Coal
Aerosols