Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China

doi:10.1016/j.watres.2023.120440

	Spatiotemporal distribution and particle-water partitioning of polycyclic aromatic hydrocarbons in Bohai Sea, China
	Chen, Chongtai 1; Lin, Tian 1; Sun, Xu 2; Wu, Zilan 3; Tang, Jianhui2
发表期刊	WATER RESEARCH
ISSN	0043-1354
	2023-10-01
卷号	244 页码:9
关键词	PAHs Spatiotemporal distribution Rainy season Bohai sea Particle-water partitioning
DOI	10.1016/j.watres.2023.120440
通讯作者	Lin, Tian(lintian@vip.gyig.ac.cn) ; Tang, Jianhui(jhtang@yic.ac.cn)
英文摘要	The 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.
资助机构	Joint Funds of the National Natural Science Foundation of China ; National Natural Science Foundation of China (Youth Program)
收录类别	SCI
语种	英语
关键词[WOS]	ECOLOGICAL RISK-ASSESSMENT ; SUSPENDED PARTICULATE MATTER ; SOURCE APPORTIONMENT ; SEASONAL-VARIATIONS ; SURFACE SEDIMENTS ; FOOD-WEB ; PAHS ; RIVER ; SEAWATER ; EXCHANGE
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS记录号	WOS:001060516900001
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/33508
专题	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
通讯作者	Lin, Tian; Tang, Jianhui
作者单位	1.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
推荐引用方式 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.