Abstract:Dishui Lake is the largest artificial lake in China. 16polycyclic aromatic hydrocarbons (PAHs) were measured in sediments from Dishui Lake water system every two months in 2012. The ∑PAHs concentrations ranged from 74.03to 579.20ng/g, with the mean of 272.55ng/g. ∑PAHs in river sediment outside the diversion sluice [(407.64±6.90) ng/g] were similar to sediment inside the diversion sluice [(427.99±213.84) ng/g], while both were greater than those in Dishui Lake [(156.33±62.00)ng/g]. As the value of Ant/(Ant+Phe) in each site of study area was higher than 0.1, petroleum combustion was considered to be the main sources of PAHs. The result of ecological risk assessment indicated that serious ecological risk didn¢t exist, but the flowing rivers maybe had a weak potential risk, while Dishui lake was considered risk-free.
梅卫平, 阮慧慧, 吴昊, LE Huy Tuan, 江敏. 滴水湖水系沉积物中多环芳烃的分布及风险评价[J]. 中国环境科学, 2013, 33(11): 2069-2074.
MEI Wei-Ping, RUAN Hui-Hui, WU Hao, LE Huy Tuan, JIANG Min. Distribution and ecological risk assessment of polycyclic aromatic hydrocarbons in sediments from Dishui Lake water system. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(11): 2069-2074.