Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China
Chen, Chongtai1; Lin, Tian1; Sun, Xu2; Wu, Zilan3; Tang, Jianhui2
Source PublicationWATER RESEARCH
ISSN0043-1354
2023-10-01
Volume244Pages:9
KeywordPAHs Spatiotemporal distribution Rainy season Bohai sea Particle-water partitioning
DOI10.1016/j.watres.2023.120440
Corresponding AuthorLin, Tian(lintian@vip.gyig.ac.cn) ; Tang, Jianhui(jhtang@yic.ac.cn)
AbstractThe Bohai Sea is one of the most polluted marine areas in China with polycyclic aromatic hydrocarbons (PAHs) due to its unique hydrological and geographical environment. To investigate differences in PAH concentrations, composition, and particle-water partitioning before and after the rainy reason, water samples were collected during two surveying voyages covering most of the area of the Bohai Sea. Total and dissolved PAH concentrations were higher during the June voyage (total PAHs: 32.29 & PLUSMN; 15.18 ng/L, dissolved PAHs: 31.25 & PLUSMN; 15.26 ng/L) than the August voyage (total PAHs: 15.98 & PLUSMN; 6.39 ng/L, dissolved PAHs: 11.21 & PLUSMN; 5.59 ng/L). The opposite trend was observed for particulate PAHs (June: 1.04 & PLUSMN; 1.01 ng/L, August: 4.78 & PLUSMN; 2.96 ng/L). Among particulate PAHs, an unusually high proportion (65.07%) of low-molecular-weight (LMW) PAHs was observed during the August voyage, which was significantly higher than the proportion during the June voyage (21.86%). This high proportion was inconsistent with the general distribution of PAHs in the aquatic environment according to their physicochemical properties. The excess LMW PAHs adsorbed on suspended particulate matter arose mainly from soil affected by the petrochemical industry of the Bohai Economic Rim, and were carried with particles on runoff into the Bohai Sea during the rainy season. An estimated 5.49 t of LMW PAHs transitioned from the particulate phase to the dissolved phase during the rainy season. This transfer of LMW PAHs from coastal soil to the water column may be an important source of PAHs in the Bohai Sea.
Funding OrganizationJoint Funds of the National Natural Science Foundation of China ; National Natural Science Foundation of China (Youth Program)
Indexed BySCI
Language英语
WOS KeywordECOLOGICAL RISK-ASSESSMENT ; SUSPENDED PARTICULATE MATTER ; SOURCE APPORTIONMENT ; SEASONAL-VARIATIONS ; SURFACE SEDIMENTS ; FOOD-WEB ; PAHS ; RIVER ; SEAWATER ; EXCHANGE
WOS Research AreaEngineering ; Environmental Sciences & Ecology ; Water Resources
WOS IDWOS:001060516900001
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/33508
Collection中国科学院海岸带环境过程与生态修复重点实验室
中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Corresponding AuthorLin, Tian; Tang, Jianhui
Affiliation1.Shanghai Ocean Univ, Coll Marine Ecol & Environm, Shanghai 201306, Peoples R China
2.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
3.Natl Marine Environm Monitoring Ctr, China State Environm Protect Key Lab Coastal Ecosy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen, Chongtai,Lin, Tian,Sun, Xu,et al. Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China[J]. WATER RESEARCH,2023,244:9.
APA Chen, Chongtai,Lin, Tian,Sun, Xu,Wu, Zilan,&Tang, Jianhui.(2023).Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China.WATER RESEARCH,244,9.
MLA Chen, Chongtai,et al."Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China".WATER RESEARCH 244(2023):9.
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