Hong S H, Yim U H, Shim W J, Oh J R, Viet P H, Park P S
South Sea Research Institute, Korea Ocean Research and Development Institute, 391 Jangmok-ri, Jangmok-myon, Geoje-shi 656-834, Republic of Korea.
Chemosphere. 2008 Jul;72(8):1193-202. doi: 10.1016/j.chemosphere.2008.02.051. Epub 2008 Apr 28.
To assess the organochlorine contamination in the northeast coastal environment of Vietnam, a total of 41 surface sediments were collected from Ha Long Bay, Hai Phong Bay, and Ba Lat estuary, and analyzed for their organochlorine content. Organochlorine compounds (OCs) were widely distributed in the Vietnamese coastal environment. Among the OCs measured, DDT compounds predominated with concentrations ranging from 0.31 to 274 ng g(-1). The overall contamination level of DDTs in coastal sediments from northern Vietnam is comparable with those from other Asian countries. However, concentrations exceeding 100 ng g(-1) are comparable with high concentrations reported from India and China, the largest DDT consumers in the world. The overall concentrations of PCBs, HCHs, and chlordanes in surface sediments were in the ranges of 0.04-18.71 ng g(-1), not detected (n.d.) - 1.00 ng g(-1), and n.d. - 0.75 ng g(-1), respectively. Ha Long Bay and Hai Phong Bay were relatively more contaminated with DDTs and PCBs than other regions, respectively. In contrast, the distribution of HCHs was relatively homogeneous. OCs contamination in the coastal environment of Vietnam is closely related to shipping and industrial activities. The levels of DDT compounds in harbors and industrial areas exceeded their sediment quality guideline values suggested by Environment Canada [CCME (Canadian Council of Ministers of the Environment), 2002. Canadian sediment quality guidelines for the protection of aquatic life. In: Canadian Environmental Quality Guidelines. Canadian Council of Ministers of the Environment, Winnipeg, MB] and Australian and New Zealand [ANZECC and ARMCANZ, 2000. National water quality management strategy. Paper No. 4, Australian and New Zealand Guidelines for Fresh and Marine Water Quality, vol. 1, The Guidelines. Australia. Document: http://www.deh.gov.au/water/quality/nwqms/volume1.html], indicating that adverse effects may occur to marine species in that areas.
为评估越南东北沿海环境中的有机氯污染情况，从下龙湾、海防湾和巴拉特河口共采集了41份表层沉积物样本，并对其有机氯含量进行了分析。有机氯化合物（OCs）在越南沿海环境中广泛分布。在所测定的有机氯化合物中，滴滴涕化合物占主导地位，浓度范围为0.31至274纳克/克（-1）。越南北部沿海沉积物中滴滴涕的总体污染水平与其他亚洲国家相当。然而，超过100纳克/克（-1）的浓度与世界上最大的滴滴涕消费国印度和中国报告的高浓度相当。表层沉积物中多氯联苯、六氯环己烷和氯丹的总体浓度分别在0.04 - 18.71纳克/克（-1）、未检出（n.d.） - 1.00纳克/克（-1）和未检出 - 0.75纳克/克（-1）范围内。下龙湾和海防湾分别比其他地区受滴滴涕和多氯联苯的污染相对更严重。相比之下，六氯环己烷的分布相对均匀。越南沿海环境中的有机氯污染与航运和工业活动密切相关。港口和工业区的滴滴涕化合物含量超过了加拿大环境部[加拿大环境部长理事会（CCME），2002年。加拿大保护水生生物的沉积物质量指南。载于：加拿大环境质量指南。加拿大环境部长理事会，温尼伯，马尼托巴省]以及澳大利亚和新西兰[澳大利亚和新西兰环境与保护委员会及农业和资源管理部长理事会，2000年。国家水质管理战略。第4号文件，澳大利亚和新西兰淡水和海水水质指南，第1卷，指南。澳大利亚。文件：http://www.deh.gov.au/water/quality/nwqms/volume1.html]建议的沉积物质量指导值，这表明该地区的海洋物种可能会受到不利影响。
