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目的 :调查了解郑州市 1998年大气污染状况 ,以期加大治理力度 ,保护生态环境。方法 :用紫外荧光法测定二氧化硫 (SO2 ) ,用化学发光法测定氮氧化物 (NOx) ,用重量法测定总悬浮颗粒物 (TSP)和降尘 (FD) ,用铬酸钡比色法测定硫酸盐化速率 (SV)。在大气污染物测试基础上 ,按照国家规定的评价标准分析了郑州市大气环境中主要污染物及污染类型。结果 :该年度郑州市大气各污染物对污染的影响作用大小顺序为 :TSP >NOx>FD >SO2 。结论 :郑州市 1998年综合污染水平为中度污染 ,属煤烟型污染
Objective: To investigate and understand the situation of air pollution in Zhengzhou City in 1998 with a view to intensifying the management and protecting the ecological environment. Methods: Sulfur dioxide (SO2) was determined by UV fluorescence spectrophotometry. Nitrogen oxides (NOx) were determined by chemiluminescence method. TSP and FD were determined gravimetrically. Barium sulphate Rate (SV). Based on the air pollutants test, the main pollutants and the types of pollution in the atmospheric environment of Zhengzhou are analyzed in accordance with the evaluation standards stipulated by the state. Results: The order of effect of each pollutant on air pollution in Zhengzhou City in this year is: TSP> NOx> FD> SO2. Conclusion: The comprehensive pollution level of Zhengzhou was moderately polluted in 1998, belonging to the soot-type pollution