Greenstein Darrin, Bay Steven, Jirik Andrew, Brown Jeffrey, Alexander Clark
Southern California Coastal Water Research Project, 7171 Fenwick Lane, Westminister, CA 92683, USA.
Mar Environ Res. 2003 Jul-Aug;56(1-2):277-97. doi: 10.1016/S0141-1136(02)00335-5.
During the summer of 1997, sediment core samples were taken at 25 stations in Santa Monica Bay. Toxicity testing was performed on 4-cm sections of the entire length of each core using purple sea urchin fertilization and amphipod survival tests. The sea urchin test identified sections as being toxic at six stations, all located near current or former Hyperion Treatment Plant (HTP) wastewater outfall locations. The amphipod test identified sections from 17 stations as having toxic sediments. The stations having toxic sediments were scattered throughout the bay and toxicity was identified at numerous core depths. Spatial and temporal patterns indicated that toxicity was most strongly associated with the historical disposal of municipal wastewater sludge. Many of the sections toxic to the amphipods did not have chemical levels expected to cause toxicity and were in locations where a source of toxicity was not apparent.
1997年夏季，在圣莫尼卡湾的25个站点采集了沉积物岩心样本。使用紫海胆受精试验和双壳类动物存活试验，对每个岩心全长的4厘米切片进行了毒性测试。海胆试验在6个站点识别出有毒切片，所有这些站点都位于当前或以前的海波龙污水处理厂（HTP）废水排放口附近。双壳类动物试验在17个站点识别出有毒沉积物切片。有毒沉积物所在的站点遍布整个海湾，并且在多个岩心深度都识别出了毒性。空间和时间模式表明，毒性与城市废水污泥的历史处置密切相关。许多对双壳类动物有毒的切片，其化学物质含量并未达到预期的致毒水平，而且位于毒性来源不明的区域。
