International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Dalian Maritime University, Dalian, PR China.
Ecotoxicol Environ Saf. 2013 Apr;90:151-6. doi: 10.1016/j.ecoenv.2012.12.024. Epub 2013 Jan 23.
Polycyclic aromatic hydrocarbons (PAHs) were measured in concurrently sampled surface seawater and sediment collected at 20 sites around Dalian, China 50 days after an oil spill accident. The concentrations of total PAHs ranged from 15 to 160 ng L(-1) in seawater, and from 64 to 2100 ng g(-1) dry weight in surface sediment. The spatial trends of PAHs in seawater, but not in sediment, showed a significant negative correlation with the distance from the oil spill site, indicating a strong source of PAHs from oil spill place to the surrounding seawater. The similar profiles for PAH composition in both crude oil and seawater could indicate that oil spill caused PAHs concentration in seawater, but not in sediment. Analysis of water-sediment exchange of PAHs showed that the direction of the net flux of PAHs was from sediment to seawater for most priority PAHs, and from water to sediment for a few HWM-PAHs.
多环芳烃（PAHs）在大连周边 20 个地点采集的同期表层海水和沉积物中进行了测量，这些地点是在漏油事故发生 50 天后采集的。海水中总多环芳烃的浓度范围为 15 至 160ng/L，表层沉积物中为 64 至 2100ng/g 干重。海水中多环芳烃的空间趋势与距漏油点的距离呈显著负相关，但沉积物中没有这种相关性，表明多环芳烃有一个很强的从漏油点到周围海域的污染源。原油和海水中多环芳烃组成的相似分布可能表明漏油事故导致了海水中多环芳烃浓度的增加，但对沉积物中的多环芳烃浓度没有影响。多环芳烃在水-沉积物之间交换的分析表明，对于大多数优先多环芳烃，多环芳烃的净通量方向是从沉积物到海水，而对于少数高环多环芳烃，则是从水到沉积物。
