Influence of point sources on heavy metal accumulation in different apartments of Jiaozhou Bay
Influence of point sources on heavy metal accumulation in different apartments of Jiaozhou Bay
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作者：
Y. Zhi
对胶州湾悬浮颗粒物（SPM）、沉积物柱样和底栖生物中重金属的污染和富集状况进行了分析和评价，结果表明：（1）胶州湾大量未经处理的污水的排放和陆源污染物向外湾扩散不足直接导致了点源污染，造成了水体和底栖生物中重金属的富集;（2）人为活动对悬浮颗粒物中重金属的富集有显著影响，人为因素（AF）对悬浮颗粒物中重金属的富集有显著影响。沉积物柱样的分析表明，河口污染较其他调查区严重;（三）底栖生物体内重金属含量与采样点距污染源的距离密切相关菲律宾蛤仔是一种底栖生物，对镉的富集能力高于其它重金属。
The pollution and enrichment states of heavy metals in suspended particulate matter(SPM),sediment core and benthic organisms were analyzed and evaluated in Jiaozhou Bay.Results showed that:(1) The discharge of a large amount of untreated effluents and the insufficient diffusion of the terrestrial contamination to outer bay directly led to point source contamination,which caused the heavy metal enrichment in water and in benthic organism;(2) Anthropogenic activities significantly affected the heavy metals enrichment in SPM.The anthropogenic factors(AF) of sediment cores showed that the pollution at the estuary was more serious than that of other investigated areas;(3) The concentration of heavy metals in benthic organism had close relationship with the distance from the sampling site to the pollution sources.Venerupis Philippinarum,a benthic organism,was estimated to have higher accumulating capacity to cadmium as compared to any other tested heavy metals.