Abstract:In order to investigate the characteristics of the distribution and pollution level of the petroleum hydrocarbon in surface sediments. Based on data obtained from the Changjiang Estuary and its adjacent areas in the rainy season from year 2004to 2009, the distribution characteristics and pollution level of the petroleum hydrocarbon in surface sediments analyzed, and their influencing mechanisms was further analyzed. The average content of the petroleum hydrocarbon was 176.25mg/kg and there was almost no pollution in the investigation area. The distribution pattern of the petroleum hydrocarbon was decreased from the alongshore to the open sea and hydrographic dynamics, adsorption and flocculation played important roles in the distribution of the petroleum. According to the spatial analysis results, the petroleum hydrocarbon in surface sediments was classified into four areas and the results were supported by multidimensional analysis and ANOSIM test. The investigation area could classify into inshore turbidity maximum areas, inshore areas, muddy areas, and there was a perennial low value area in the offshore area located in the southeast.
李磊, 蒋玫, 王云龙, 袁骐, 徐国栋, 沈新强. 长江口及邻近海域沉积物中石油烃污染特征[J]. 中国环境科学, 2014, 34(3): 752-757.
LI Lei, JIANG Mei, WANG Yun-Long, YUAN Qi, XU Guo-Dong, SHEN Xin-Qiang. Characteristics of petroleum hydrocarbon pollution in surface sediments from the Changjiang Estuary and its adjacent areas. CHINA ENVIRONMENTAL SCIENCECE, 2014, 34(3): 752-757.