AI Article Synopsis
- - Researchers studied pollution from a group of chemicals called PAHs in sea ice and seawater in northern Liaodong bay, China, for the first time in December 2020.
- - They found that the levels of these chemicals in sea ice and seawater were moderate and indicated some risk to the environment.
- - The study showed that most PAHs came from oil spills and burning things, helping to understand where the pollution is coming from and how to manage it better.
Article Abstract
To better understand the spatial distribution and ecological risks of polycyclic aromatic hydrocarbons especially in low latitude coastal productive areas, PAHs in sea ice were examined for the first time in northern Liaodong bay of China in December 2020. Results showed ΣPAHs were dominated by 2- and 3-ring, with the mean concentration of 241.9 ng L and 202.8 ng L in sea ice and seawater, respectively, suggesting a moderate ecological risk based on Risk Quotients assessment. Ice enrichment factors were greater than 1 at 82% of the sampling sites, reflecting enrichment of PAHs in sea ice. The characteristic compounds ratios demonstrated PAHs mainly derived from petrogenic sources, while combustion was another crucial source for PAHs in sea ice via atmospheric deposition. This helps to better elucidate pollution status, potential sources and risk assessment of PAHs in productive coastal oceans especially during ice-covered period for contamination control and environmental management.
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| http://dx.doi.org/10.1016/j.marpolbul.2022.113319 | DOI Listing |
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