Yuan Hongming, Li Tiegang, Ding Xigui, Zhao Guangming, Ye Siyuan
Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Key Laboratory of Coastal Wetland Biogeosciences, China Geologic Survey, Qingdao Institute of Marine Geology, CGS, Ministry of Land and Resources, Qingdao 266071, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China.
Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Mar Pollut Bull. 2014 Jun 15;83(1):258-64. doi: 10.1016/j.marpolbul.2014.03.043. Epub 2014 May 5.
PAH concentrations of 61 surface soil samples collected from the Yellow River Delta (YRD), China were measured to determine occurrence levels, sources, and potential toxicological significance of PAHs. The total concentrations of ∑PAHs ranged from 27 to 753 ng/g d.w., with a mean of 118±132 ng/g. The highest concentrations was found in the mid-southern part of the YRD (753 ng/g), which was associated with the oil exploration. The ratios indicated that the PAHs throughout the YRD were mostly of pyrogenic origin; while various sites in mid-southern part in the region were derived mainly from the petrogenic sources. Multivariate statistical analyses supported that the PAHs in surface soils of the YRD were principally from the coal and biomass combustion, petroleum spills, and/or vehicular emissions. The toxic assessment suggested that the PAHs in soils were at low potential of ecotoxicological contamination level for the YRD.
对从中国黄河三角洲采集的61个表层土壤样本中的多环芳烃（PAH）浓度进行了测量，以确定多环芳烃的存在水平、来源及其潜在的毒理学意义。∑PAHs的总浓度范围为27至753 ng/g干重，平均值为118±132 ng/g。在黄河三角洲中南部发现了最高浓度（753 ng/g），这与石油勘探有关。比值表明，整个黄河三角洲的多环芳烃大多源于热解；而该地区中南部的各个地点主要来自成岩源。多变量统计分析支持，黄河三角洲表层土壤中的多环芳烃主要来自煤炭和生物质燃烧、石油泄漏和/或车辆排放。毒性评估表明，该地区土壤中的多环芳烃对生态毒理学污染水平的潜在影响较低。
