Sea Water Quality Standard and Distribution of HCH in the Jiaozhou Bay Waters
Abstract：Based on data from the investigation in Jiaozhou Bay waters in April,July and October 1986,the distributions,source and seasonal variations of HCH in Jiaozhou Bay are analyzed.It is showed that HCH content in Jiaozhou Bay was very low and less than 0.100μg/L in this year,and better than StandardⅠof the sea water quality,and the water quality with less HCH was very clean;and that the seasonal variations of the HCH content in Jiaozhou Bay waters were not obvious and it was not influenced by the seasonal variations of the rainfall,the runoffs and rivers.It is also learnt from the vertical distributions of the HCH content in the whole bay waters that the horizontal distribution pattern of the HCH content at surface was not consistent with that at bottom,but the HCH content values at surface and bottom were very close to each other.Since the prohibition of HCH in 1983,all the HCH contents in the waters have reached StandardⅠof the sea water quality,and since 1985,all the HCH contents in the waters have become better than StandardⅠof the sea water quality.Therefore,the sea water quality national standards about the HCH need revising in order to meet requirements suitabe to the new environment change.
Keywords：HCHdistributionsea waterswater quality standardJiaozhou Bay
Publication Date：2011-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：10( 56-65 )