新标准实施后由于增加评价项目和部分标准浓度值调整导致如皋城市首要大气污染物及超标率等亦随之变化，本文采用新旧环境空气质量评价标准分别对2012-2014年如皋市环境空气监测数据进行评价，并分析了新旧标准评价体系对于评价结果的影响。采用新标准评价会对空气质量评价产生明显影响，导致首要污染物发生明显改变，优良天数比例明显下降，空气质量普遍变差。新标准评价结果与公众主观感受更加接近。%After the implementation of new standard, due to the increased evaluation items and adjustment of part of the standard concentration values, the primary air pollutantsand the exceeding standard rate also changein Rugao city. This paper uses the old and the new environmental air quality assessment standard,to eval⁃uate environmental air monitoring data of Rugao in 2012-2014 respectively, and analyzes the influences of new and old standard evaluation system on the evaluation results. Adopting the new standard for evaluation will sig⁃nificantly impact the air quality evaluation, leading to obvious change of the primary pollutants. The good quali⁃ty days’ratio will decrease obviously, and the air quality becomes generally poor. The new standard evaluation results are even closer to the public subjective feelings.
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