Sources and Distribution Features of Hydrocarbonsin Xiamen Jinmen Area
- 海洋环境－已发表论文 
利用气相色谱法测定了厦门金门附近海区沉积物中的非芳香烃.非芳香烃的总含量在 1.7~33 μg/g 之间，平均为 14.0 μg/g.此含量与其他人类活动频繁的沿海相比是较低的，该区域受石油烃的影响很轻微.在厦门岛东南部，从九龙江口、厦门西港往外，非芳香烃的总含量有递减的趋势；在细颗粒沉积物中得到富集.这些烃类主要来自于石油烃，也含有来自陆源高等植物和现场生物的烃类.Surface sediments were collected in the Xiamen Jinmen Islands area and their composition of non aromatic hydrocarbon (NAH) was analyzed by GC. Concentrations of NAH varied from 1.7 to 33 μg/g with an average of 14.0 μg/g. These levels were slightly higher than those reported in unpolluted intertidal and estuarine sediment, indicating very light petroleum contamination. There was a decrease offshore. The NAH was relatively concentrated in the fine grain size part of the sediment.Major sources were investigated by using several diagnostic indexes and characteristic compositional trends.The hydrocarbons in this area were a mixture of anthropogenic inputs detritus organic inputs from land and in situ production of algae and bacteria.