Rumney Heather S, Bolam Stefan G, Law Robin J
The Centre for Environment, Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK.
The Centre for Environment, Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK.
Mar Pollut Bull. 2015 Mar 15;92(1-2):180-185. doi: 10.1016/j.marpolbul.2014.12.039. Epub 2015 Jan 21.
The maintenance of navigation channels to ports and the development of their facilities present a need to conduct dredging operations, and the subsequent disposal of dredged material at sea. Contaminant concentrations in candidate dredged material are determined and their possible impacts considered during the licensing process, which can result in the exclusion of some material from sea disposal. Monitoring of disposal sites is conducted in order to ensure that no undesirable impacts are occurring. In this study we consider the levels of polycyclic aromatic hydrocarbons (PAHs) in sediments at a number of disposal sites monitored in 2013 and variations in concentrations over time at three sites during the period 2008-2013. These were assessed using established sediment quality guidelines. Elevated PAH concentrations were generally observed only within the boundaries of the disposal sites studied.
维护通往港口的航道及其设施的发展需要进行疏浚作业，并随后在海上处置疏浚物料。在许可过程中确定候选疏浚物料中的污染物浓度，并考虑其可能的影响，这可能导致一些物料被排除在海洋处置之外。对处置场地进行监测，以确保不会产生不良影响。在本研究中，我们考虑了2013年监测的多个处置场地沉积物中多环芳烃（PAH）的水平，以及2008 - 2013年期间三个场地浓度随时间的变化。这些是根据既定的沉积物质量准则进行评估的。一般仅在所研究的处置场地边界内观察到PAH浓度升高。
