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Characterization of contamination in and toxicities of a shipyard area in Hong Kong

机译:香港造船厂区域的污染和毒性表征

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This is the first integrated study on the contaminant characterization and toxicities of a shipyard area. This site in Hong Kong contained 3.6-33.4 mg kg(-1) dichlorodiphenyltrichloroethane and 5-79 g kg(-1) oil and grease. Other pollutants exceeding the Dutch intervention values were total polyaromatic hydrocarbons, total petroleum hydrocarbons, and metals Cu, Pb and Zn. These pollutants persisted partially owing to the poor fertility with < 125 mg N kg(-1) and < 530 mg P kg(-1) typical of coastal soil. Sediments collected within 100 m also showed contamination exceeding the China and Hong Kong intervention levels. The shipyard soil killed two bacteria Pseudomonas stutzeri and Acinetobacter sp. isolated from a clean coastal soil, inhibited germination of three exogenous plants Triticum aestivum, Brassica chinense and Lolium perenne, and inhibited proliferation of three indigenous bacteria: Methylobacterium sp., Pseudomonas aeruginosa and Bacillus cereus. Thus, ex situ remediation was needed. (c) 2005 Elsevier Ltd. All rights reserved.
机译:这是关于船坞区域污染物特征和毒性的首次综合研究。香港的该站点包含3.6-33.4 mg kg(-1)二氯二苯基三氯乙烷和5-79 g kg(-1)油和油脂。超过荷兰干预值的其他污染物是多芳烃总量,石油烃总量以及金属铜,铅和锌。这些污染物之所以持续存在,部分原因是肥沃性差,沿海土壤典型的<125 mg N kg(-1)和<530 mg P kg(-1)。在100 m内收集的沉积物也显示出超过中国和香港干预水平的污染。船厂土壤杀死了两种细菌:斯氏假单胞菌和不动杆菌。分离自干净的沿海土壤,抑制了三种外来植物小麦,小白菜和黑麦草的发芽,并抑制了三种本土细菌的繁殖:甲基杆菌,铜绿假单胞菌和蜡状芽孢杆菌。因此,需要异地修复。 (c)2005 Elsevier Ltd.保留所有权利。

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