某港口工业区部分投产期间海水水质的检测与评价

Assessment on Seawater Quality of a Pier Industrial Area in Startup Time

目的了解某港口工业区部分投产期间工业建设对海水环境的影响,为开展连续性环境监测和环境科学研究提供依据。方法选定某港口工业区矿石、煤炭、原油、散货码头和上游对照区为采样点,于2009年5月,分别采集表层海水(水面下0.5 m)和深层海水(距码头100 m处,水面下10 m)水样进行测定,并计算水质综合污染指数。结果各采样点码头表层及深层海水中铜含量均超标。矿石码头深层海水中汞及无机磷超标,煤炭码头表层海水中BOD5和COD超标,原油码头表层海水中COD、汞和深层海水中汞超标,散装码头表层与深层海水中汞含量均超标。各码头表层海水水质综合污染指数分别为2.158、3.468、3.648、2.859,深层海水水质综合污染指数分别为8.656、2.960、2.923、2.511。结论某港口工业区部分投产期间部分码头海水铜、汞和COD超标。

Objective To know the effects of industrial construction in one pier＇s industrial area in startup time on seawater environment. Methods Ore,coal,crude oil and bulk cargo terminals and the control area of the upper reaches of sampling points were selected respectively. Samples of seawater in shallow water （0.5 meter underneath the surface） and deep water （10 meters underneath the surface） were collected on May, 2009,and the integrated pollution index were calculated. Results The concentrations of Cu in shallow water and deep water exceeded the standard limit in all the 4 piers. The concentrations of Hg and inorganic phosphorus in deep water of ore pier exceeded the standard limit. The concentrations of BOD5 and COD in surface water, and Hg in deep water of coal pier exceeded the standard limit. The concentrations of COD and Hg in surface water, and Hg in deep water of crude oil pier exceeded the standard limit. The concentrations of Hg in surface water and deep water of bulk cargo terminal exceeded the standard limit. The integrated pollution indexes of the surface water of these 4 piers were 2.158,3.468,3.648 and 2.859 respectively. The integrated pollution indexes of the deep water of these 4 piers were 8.656,2.960,2.923 and 2.511 respectively. Conclusion The concentrations of Cu, Hg and COD in the seawater exceeded the standard limits in the triers in startun time.