Spatial distribution of polycyclic aromatic hydrocarbons in the Philippine Sea, Western Pacific and the impact factors analysis

Linjie Zhang; Dong Sun; Lilan Zhang; Shaohong Zhou

doi:10.1016/j.marpolbul.2021.113083

Spatial distribution of polycyclic aromatic hydrocarbons in the Philippine Sea, Western Pacific and the impact factors analysis

Mar Pollut Bull. 2021 Dec;173(Pt B):113083. doi: 10.1016/j.marpolbul.2021.113083. Epub 2021 Oct 25.

Authors

Linjie Zhang¹, Dong Sun², Lilan Zhang³, Shaohong Zhou⁴

Affiliations

¹ Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China; Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China.
² Key Laboratory of Marine Ecosystem Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China.
³ Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China. Electronic address: lilanzhang@cqu.edu.cn.
⁴ Key Laboratory of Three Gorges Reservoir Region's Eco-environment, Ministry of Education, Chongqing University, Chongqing 400045, China.

PMID: 34710674
DOI: 10.1016/j.marpolbul.2021.113083

Abstract

Knowing the polycyclic aromatic hydrocarbons (PAHs) pollution properties in ocean is highly needed to protect the open sea. In July to August of 2020, twenty surface water samples were obtained from the East China Sea to the Philippine Sea. The ranges of Σ₁₅PAHs concentrations were 3.188-5.29 ng L^-1 in dissolved phase, 0.455-1.305 ng L^-1 in particulate phase in the Philippine Sea. 3, 4-Ring PAHs were the most abundant PAHs. Their spatial differences in dissolved phase were mainly caused by human activities, the summer monsoon from the Philippine Islands and the Northern Equatorial Current, and the Kuroshio Current and Subtropical Countercurrent. The source analysis showed that PAHs in surface water in the Philippine Sea may come from coal combustion. It is the first time to analyze the occurrence and distribution of PAHs in the Philippine Sea.

Keywords: Impact factors; Polycyclic aromatic hydrocarbons; Spatial distribution; Water samples, Philippine Sea.

MeSH terms

China
Environmental Monitoring
Humans
Oceans and Seas
Philippines
Polycyclic Aromatic Hydrocarbons* / analysis
Water Pollutants, Chemical* / analysis

Substances

Polycyclic Aromatic Hydrocarbons
Water Pollutants, Chemical