P ollution of an ion ic surfactan t and PCB in coasta l surfa ce seawa ter of Fujian Lprovince

[摘要]：用亚甲蓝分光光度法和GC2ECD 法分别对福建近岸表层海水中的阴离子表面活性剂和PCBs进行了分析, 初步探 讨了表层海水中这两类污染物的来源。表层海水中阴离子表面活性剂浓度范围为0. 04~ 1. 987 mg/L, 较高浓度值站点主要 位于九龙江口、闽江口和湄洲湾海域。PCBs的浓度在3. 9 ~ 367. 1 ng/L之间, 整体上近岸站点浓度值比离岸站点高, 中北部 浓度值比南部高。与其他地区的研究结果及海水水质标准进行比较, 福建沿海表层海水中阴离子表面活性剂和PCB的污染 都较为严重。[Abstract]:The an ion ic surfactant and PCB in the coasta l su rface seawater of Fu jian p rovin ce were analyzed bymethylene blue sp ectro2 photometricmethod andGC2ECD, respectively. Th e concen trations ofmethylene b lu e act ive substan ce (MBAS) in th e surface seawater ranged from 0. 04 to 1. 987mg /L with the h ighest value found at the p ipe ou tlet near X iamen Un iversity. The elevated concentrat ions ofMBASwere observed in J iu long jiang, M in jiang Estuary andMeizhou Bay, poss ib ly du e to the d ischarge of sewage. Th e concentrat ions of totalPCBs ( d issolved p lu s particu late phase) ranged from 3. 9 to 367. 1 ng/L in th e surface L seawater and increased concentrat ions were ob served from offsh ore to inshore and from sou th to north. Th e pollut ion of an ion ic surfactan ts and PCBs in the coastal su rface sea2 water of Fu j ian P rovin ce is a seriou s prob lem comparingw ith other values reported andU S and Canada seawater2qu ality criteria.中国博士后科学基金( 20060390186); 国家自然科学基金项目( 40603020