Total petroleum hydrocarbons and heavy metals in the surface sediments of Bohai Bay,China: Long-term variations in pollution status and adverse biological risk |
| |
| Authors: | Ran Zhou Xuebo Qin Shitao Peng Shihuai Deng |
| |
| Institution: | 1. College of Resource and Environment, Sichuan Agricultural University, Chengdu 611130, China;2. Tianjin Research Institute for Water Transport Engineering, Tianjin 300456, China;3. College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China |
| |
| Abstract: | Surface sediments collected from 2001 to 2011 were analyzed for total petroleum hydrocarbons (TPH) and five heavy metals. The sediment concentration ranges of TPH, Zn, Cu, Pb, Cd and Hg were 6.3–535 μg/g, 58–332 μg/g, 7.2–63 μg/g, 4.3–138 μg/g, 0–0.98 μg/g, and 0.10–0.68 μg/g, respectively. These results met the highest marine sediment quality standards in China, indicating that the sediment was fairly clean. However, based on the effects range-median (ERM) quotient method, the calculated values for all of the sampling sites were higher than 0.10, suggesting that there was a potential adverse biological risk in Bohai Bay. According to the calculated results, the biological risk decreased from 2001 to 2007 and increased afterwards. High-risk sites were mainly distributed along the coast. This study suggests that anthropogenic influences might be responsible for the potential risk of adverse biological effects from TPH and heavy metals in Bohai Bay. |
| |
| Keywords: | Pollution status Adverse biological risk Total petroleum hydrocarbons Heavy metal Bohai Bay |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
