基于3种客观赋权法的空气中化学污染物加权叠加效应评价比较

Analysis of the evaluation results of weighted superposition effects of chemical pollutants in some hotels based on three objectivee empowerment methods

目的基于三种客观赋权法对大连市部分宾馆旅店空气中化学污染物进行加权叠加效应评价,并对评价结果进行比较。方法收集2018—2020年大连市66家宾馆旅店空气中甲醛、一氧化碳、二氧化碳、苯、甲苯、二甲苯、可吸入颗粒物(PM10)、细颗粒物(PM2.5)等化学污染物浓度监测数据,比较变异系数法、标准离差法、复相关系数法等3种客观赋权法并对空气中化学污染物进行加权叠加效应评价。结果与标准离差法和复相关系数法相比,应用变异系数法进行加权叠加效应评价的结果相对客观与准确(r=0.650,P<0.05)。空气中化学污染物存在加权叠加效应。结论通过加权叠加效应评价发现,2018—2020年大连市66家宾馆旅店空气化学污染物存在加权叠加效应,应当引起关注和重视。

Objective To evaluate the chemical pollutants in some hotels in Dalian by weighted superposition effects,the paper is based on three objective empowerment methods,and the evaluation results are compared and analyzed.Methods We collected the chemical pollutants concentrations in the air of 66 hotels from 2018 to 2020,such as formaldehyde,carbon monoxide,carbon dioxide,benzene,methylbenzene,dimethyl benzene,inhalable particles(PM10)and fine particle matters(PM2.5).Three objective empowerment methods,including the coefficient of variation method,the standard deviation method,and the multi-correlation coefficient method,were to evaluate the weighted superposition effect on the chemical pollutants in the air.Results Compared with the standard deviation method and the multi-correlation coefficient method,the coefficient of variation method to the results of the evaluation of weighted superposition effect is more objective and accurate(r=0.650,P<0.05).There is a weighted superposition effect in chemical pollutants in the air.Conclusion Through the evaluation of weighted superposition effect,there is a weighted superposition effect in chemical pollutants in the air of 66 hotels in Dalian from 2018 to 2020,which is worth attention.