胶州湾、莱州湾潮间带沉积物污染比较

Comparison between Sedimental Contamination in Intertidal Zone of Jiaozhou Bay and the Counterpart of Laizhou Bay

系统地在胶州湾、莱州湾潮间带获取表层沉积物样,对沉积物中有机污染(有机质,石油类)、重金属(汞,铜,铅,锌,镉,铬,砷)、营养盐(总磷,总氮,总碳)、硫化物进行了定量测定。分析结果表明:除镉、总磷外,各物质在胶州湾潮间带的质量分数普遍大于在莱州湾潮间带内的质量分数;Q型聚类分析将两湾分成两类,受到工业排污、生活污水等人为因素影响严重的胶州湾东部为一类,而受人为因素影响较小的胶州湾西部和莱州湾等其余站位为一类;胶州湾潮间带生态危害程度要高于莱州湾潮间带。

Surface sedimental samples have been systematically taken respectively from intertidal zone of Jiaozbou Bay and from that of Laizhou Bay, and their organic pollutants （organic materials, petroleum）, heavy metals （Hg, Cu, Pb, Zn, Cd, Cr, As）, nutrients （TP, TN, TC）, and sulfide are quantitatively detected. The analysis results show that the contents of all the elements except Cd and TP in the samples from Jiaozhou Bay are higher than those from Laizhou Bay. By means of Q-type cluster analysis, the hays can be divided into two kinds of area. One is the eastern Jiaozhou Bay, where the factors of human activities such as industrial waste-discharge and daily life discharge give heavy influences. The another is the western Jiaozhou Bay and the Laizhou Bay, where the factors give less infuences. In general, the harmfulness to the ecology of the intertidal zone in Jiaozhou Bay is heavier than that in Laizhou Bay.