中国渤海和黄海北部表层沉积物中多环芳烃的来源及生态风险评估。
Sources and ecological risk assessment of PAHs in surface sediments from Bohai Sea and northern part of the Yellow Sea, China.
机构信息
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China; First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China.
出版信息
Mar Pollut Bull. 2015 Jul 15;96(1-2):485-90. doi: 10.1016/j.marpolbul.2015.05.002. Epub 2015 May 7.
Sources and ecological risk of sixteen priority PAHs in surface sediments from Bohai Sea (BS) and northern part of the Yellow Sea (NPYS) were investigated. The total concentrations of PAHs varied in ranges 149.24-1211.81 and 148.28-907.47 ng/g for BS and NPYS, respectively. Principal component analysis-multiple linear regression (PCA-MLR) suggested that coal combustion, vehicular emission and coke oven could be the primary PAH contributors, accounting for 56.6%, 29.2% and 14.2% of PAH concentrations, respectively. Analysis with sediment quality guidelines (SQGs) indicated that acenaphthylene, fluorene, phenanthrene, fluoranthene, pyrene and dibenzo(a,h)anthracene may occasionally cause adverse biological effects in some stations. Organic carbon (OC)-normalized analysis and mean effects range-median quotient (M-ERM-Q) suggested that the combined ecological risk of PAHs was generally low. The toxic equivalent concentrations of carcinogenic PAHs were 12.87-64.6 ng/g-BaP(eq) and 5.95-68.80 ng/g-BaP(eq) in BS and NPYS, respectively, suggesting low carcinogenic risk for both BS and NPYS.
调查了渤海（BS）和北黄海（NPYS）表层沉积物中 16 种优先多环芳烃（PAHs）的来源和生态风险。BS 和 NPYS 中 PAHs 的总浓度分别在 149.24-1211.81 和 148.28-907.47ng/g 之间变化。主成分分析-多元线性回归（PCA-MLR）表明，煤炭燃烧、机动车排放和焦炉可能是 PAHs 的主要来源，分别占 PAH 浓度的 56.6%、29.2%和 14.2%。利用沉积物质量准则（SQGs）进行分析表明，苊烯、芴、菲、荧蒽、芘和苯并[a]蒽可能偶尔会在一些站点引起不良的生物效应。有机碳（OC）归一化分析和平均效应区间中值商（M-ERM-Q）表明，PAHs 的综合生态风险通常较低。致癌性 PAHs 的毒性当量浓度分别为 12.87-64.6ng/g-BaP(eq)和 5.95-68.80ng/g-BaP(eq)，表明 BS 和 NPYS 的致癌风险均较低。
Zotero 插件