黄河上游多卡寺段地表水质评价

Surfale water quality assessment for Duoka Temple segment at the upper reaches of the Yellow River

通过对黄河上游多卡寺段地表水质量的调查与监测,得出监测结果:pH8.22,溶解氧(DO)7.5mg/L,悬浮物199.2mg/L,化学需氧量(COD)12mg/L,氯化物114.1mg/L,硫酸盐247.8mg/L,总硬度126.6mg/L,矿化度427.9mg/L,钙镁总量67.4mg/L,锌0.03mg/L。结果表明:黄河上游多卡寺段水体水质均未超过于《地面水环境质量标准》(GB3838—2002)的一级水标准,水体未受到污染,水质良好。

Surface water in Duoka Temple segment of the Yellow River was monitored and its quality was assessed according to Surface Water Quality Standard（GB3838- 2002）.The monitored results were pH 8.22, dissolved oxygen 7.5 mg/L, suspended substance 199.2 mg/L, chemical oxygen demand 12 mg/L, chloride 114.1 mg/L, sulfate 247.8 mg/L, hardness 126.6 mg/L, mineralization degree 427.9 mg/L, Ca^＋ and Mg^＋ 67.4 mg/L and Zn 0.03 mg/L. Water in the segment was not polluted and its quality met with the Grade 1 standard.