【摘要】：本文對大連近海海域15個(gè)表層沉積物樣品中16種多環(huán)芳烴(PAHs)污染特征及來源進(jìn)行研究。結(jié)果表明,沉積物中∑16PAHs總濃度為30.04×10~(-9)~89.24×10~(-9),平均值為50.84×10~(-9),其中工業(yè)區(qū)顯著高于城市地區(qū)(p0.05),極顯著高于農(nóng)村地區(qū)(p0.01)。沉積物中PAHs含量與總有機(jī)碳(TOC)含量間存在顯著正相關(guān)性(p0.05),表明沉積物有機(jī)質(zhì)含量是影響PAHs含量的主要因素。主成分分析得出,大連近海海域PAHs污染源為石油泄漏造成的石油源、生物質(zhì)及化石燃料燃燒形成的燃燒源和燃油燃燒形成的交通源。
[Abstract]:The characteristics and sources of (PAHs) pollution of 16 polycyclic aromatic hydrocarbons (PAHs) in 15 surface sediment samples from offshore waters of Dalian were studied in this paper. The results showed that the total concentrations of 鈭，

本文編號：2313293