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Land-Ocean Exchange Mechanism of Chlorinated Paraffins and Polycyclic Aromatic Hydrocarbons with Diverse Sources in a Coastal Zone Boundary Area, North China: The Role of Regional Atmospheric Transmission
Jiang, Lu; Ma, Xindong; Wang, Yawei; Gao, Wei; Liao, Chunyang; Gong, Yunfei; Jiang, Guibin
2022-09-20
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume56Issue:18Pages:12852-12862
AbstractThe marine environment is regarded as a crucial sink of numerous land-origin pollutants. As typical boundary regions, the coastal and offshore areas are used to evaluate the dominating transfer process and land-ocean exchange mechanism of semivolatile organic compounds. In air samples collected from a coastal area in North China over a whole year, chlorinated paraffins (CPs), including short-chain CPs and medium-chain CPs, and prior control 16 polycyclic aromatic hydrocarbons (PAHs) were determined, with mean concentrations of 25.8 and 94.7 ng/m3, respectively. Results of different gas-particle partitioning models indicated that the steady-state hypothesis provides a better description of the possible land-ocean exchange molecular mechanism. The source-sink influences for CPs and PAHs were affected by the predominant atmospheric motion, which alternated between gaseous diffusion and particulate sedimentation in different seasons. Source apportionment results indicated that different transfer characteristics contributed to the source divergence of ambient CPs and PAHs within 12 nautical miles in the same area. Coal/biomass combustion and diesel/natural gas combustion were the main PAH sources in the coast site (43.1%) and sea site (35.3%), respectively. Similar industrial sources CP-52 and CP-42 were the main CP sources in the coast site (41.4%) and sea site (40.8%), respectively.
Department环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室
KeywordAIR PARTITION-COEFFICIENT SOURCE APPORTIONMENT OXIDATIVE ARTIFACTS RISK-ASSESSMENT WATER EXCHANGE PAHS GAS TRANSPORT SEA VOLATILIZATION
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/47561
Collection环境化学与生态毒理学国家重点实验室
Corresponding AuthorWang, Yawei
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Marine Environm Monitoring Ctr, State Environm Protect Key Lab Coastal Ecosyst, Dalian 116023, Peoples R China
4.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310000, Peoples R China
5.Qingdao Univ, Sch Publ Hlth, Qingdao 266021, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Lu,Ma, Xindong,Wang, Yawei,et al. Land-Ocean Exchange Mechanism of Chlorinated Paraffins and Polycyclic Aromatic Hydrocarbons with Diverse Sources in a Coastal Zone Boundary Area, North China: The Role of Regional Atmospheric Transmission[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2022,56(18):12852-12862.
APA Jiang, Lu.,Ma, Xindong.,Wang, Yawei.,Gao, Wei.,Liao, Chunyang.,...&Jiang, Guibin.(2022).Land-Ocean Exchange Mechanism of Chlorinated Paraffins and Polycyclic Aromatic Hydrocarbons with Diverse Sources in a Coastal Zone Boundary Area, North China: The Role of Regional Atmospheric Transmission.ENVIRONMENTAL SCIENCE & TECHNOLOGY,56(18),12852-12862.
MLA Jiang, Lu,et al."Land-Ocean Exchange Mechanism of Chlorinated Paraffins and Polycyclic Aromatic Hydrocarbons with Diverse Sources in a Coastal Zone Boundary Area, North China: The Role of Regional Atmospheric Transmission".ENVIRONMENTAL SCIENCE & TECHNOLOGY 56.18(2022):12852-12862.
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