School of Marine Science, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory for Ecological Environment in Coastal Areas (SOA), National Marine Environmental Monitoring Center, Dalian 116023, China.
Key Laboratory for Ecological Environment in Coastal Areas (SOA), National Marine Environmental Monitoring Center, Dalian 116023, China.
Mar Pollut Bull. 2018 Dec;137:533-541. doi: 10.1016/j.marpolbul.2018.10.045. Epub 2018 Nov 5.
Fifteen polycyclic aromatic hydrocarbons (PAHs) were detected in seawater and atmosphere of Bransfield Strait. The concentration of ∑[PAH] in the atmosphere ranged from 3.75 to 8.53 ng m, and three-ring PAHs were the most abundant compounds. Dissolved ∑[PAH] in seawater ranged from 5.42 to 34.37 ng L, and the level of PAHs was markedly different on each side of the strait. The air-sea gas exchange process and molecular diagnostic ratios were calculated, results showed that the environmental behavior of PAHs was net deposition along this cruise. Given the changes in global transport routes of pollutants under global warming, the role of long-range transport (LRT) may be enhanced. Taking the Antarctic as a sink of PAHs due to the LRT and net deposition, PAHs will continue to load into the seawater of this area via atmospheric deposition, which contributes to improving our understanding of the environmental behavior of PAHs.
在布兰斯菲尔德海峡的海水和大气中检测到了 15 种多环芳烃（PAHs）。大气中∑[PAH]的浓度范围为 3.75 至 8.53ng/m，三环 PAHs 是最丰富的化合物。海水中溶解的∑[PAH]范围为 5.42 至 34.37ng/L，海峡两岸的 PAHs 水平明显不同。计算了气-海气体交换过程和分子诊断比，结果表明，PAHs 的环境行为是在整个航次中净沉积。考虑到全球变暖下污染物全球传输路径的变化，长程传输（LRT）的作用可能会增强。由于 LRT 和净沉积，南极作为 PAHs 的汇区，PAHs 将通过大气沉积持续进入该地区的海水，这有助于提高我们对 PAHs 环境行为的认识。
