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测定青铜峡段面黄河水以及流经银川地区各主干渠和靠近各主干渠直接利用黄河水养鱼的池塘水水汞含量，结果不同水体汞检出率１００％；黄河水及各干渠水汞值０．１４μｇ／Ｌ，池塘新灌水水汞值０．４６μｇ／Ｌ，差异有显著性意义；池塘过冬水水汞值２．９８μｇ／Ｌ，与池塘新灌水水汞值比较差异有极显著性意义。认为利用黄河水养鱼的池塘水受到工业废水污染。银川地区池塘鱼汞检出率为１００％，所检鱼种的鱼汞含量均未超过国家食品卫生标准。故认为食用池塘鱼其含汞量不足以对人体引起危害
The Yellow River water in Qingtongxia section and the mercury in pond water flowing through the main channel in Yinchuan area and the direct use of the Yellow River water near the main canals were measured. As a result, the detection rate of mercury in different water bodies was 100% L, 0.14μg / L for ponds, and 0.46μg / L for freshly irrigated ponds. There was a significant difference between the mercury concentrations in ponds and fresh pond water significance. It is considered that the pond water that uses the Yellow River water to fish is contaminated by industrial wastewater. The detection rate of mercury in pond fish in Yinchuan was 100%, and the fish mercury content of the tested fish species did not exceed the national food hygiene standard. Therefore, the consumption of mercury in ponds is not enough to cause harm to the human body