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本文以1987年环境调查资料为基础,讨论了大连湾水体中诸化学要素(如pH,盐度,DO,COD,NO_3-N,NO_2-N,PO_4-P,Zn,Cu,Pb,Cd,石油等)的分布规律。结果表明,大连湾海水中诸化学要素分布均具有一定的规律,均呈条带状分布;各要素高浓度区主要分布于西岸水域。说明化学要素除来自岸边岩石风化产物外,主要来自沿岸的130处污染源,通过101个排污口向湾内排放废水。年废水排放总量达8.40×10~7m~3,其中工业废污
Based on the environmental survey data of 1987, this paper discussed the chemical elements such as pH, salinity, DO, COD, NO_3-N, NO_2-N, PO_4-P, Zn, Cu, Pb, Cd, Oil, etc.) distribution. The results show that the distribution of chemical elements in the seawater of Dalian Bay has a certain regularity, all of them are distributed in the form of ribbons. The high concentrations of each element are mainly distributed in the waters of the West Bank. In addition to the weathering products from the rocky shore, the chemical elements mainly come from 130 pollution sources along the coast and discharge the wastewater into the bay through 101 sewage outfalls. The total amount of wastewater discharge was 8.40 × 10 ~ 7m ~ 3, of which industrial waste