San Diego State University, Department of Geography, San Diego, CA 92182, USA.
Mar Pollut Bull. 2012 Mar;64(3):627-35. doi: 10.1016/j.marpolbul.2011.12.006. Epub 2012 Jan 14.
Concentrations of copper in water rose rapidly following the introduction of boats to a new marina in San Diego Bay. Two months after the marina reached half its capacity, a majority of water samples exceeded chronic and acute criteria for dissolved copper, and copper concentrations in several samples exceeded the highest concentrations observed in another marina that has been listed as an impaired water body. A box model suggested that a small fraction of the leached copper was sequestered in sediment. Copper concentrations in water entering the marina from the bay was more than half the chronic concentration limit, so only 50% of marina boat capacity could be accommodated without exceeding the chronic criterion more than 50% of the time. Copper concentrations in water may increase rapidly following boat introduction in small marinas, but could return to pre-introduction levels by controlling boat numbers or reducing use of copper-based paints.
引入船只到圣地亚哥湾的新码头后，水中的铜浓度迅速上升。码头达到一半容量两个月后，大多数水样超过了溶解铜的慢性和急性标准，并且几个水样中的铜浓度超过了另一个被列为受损水体的码头的最高浓度。一个箱式模型表明，浸出的铜的一小部分被固着在沉积物中。从海湾进入码头的水中的铜浓度超过慢性浓度限值的一半，因此，在不超过慢性标准 50%的时间的情况下，只能容纳码头船只容量的 50%。在小码头引入船只后，水中的铜浓度可能会迅速上升，但通过控制船只数量或减少使用含铜涂料，铜浓度可能会恢复到引入前的水平。
