大气污染浓度是大气中所含尘埃的浓度。日本环保部门根据含尘量将大气分为四类：清净空气米3（含尘量），允许空气0.3—0.8毫克/米3；污染空气0.8—1.5毫克/米3，危险空气>1.5毫克/米3。为了降低大气污染浓度，应以大气质量标准和大气污染物排放标准为依据，对各种大气污染源和污染物采取防治措施。
... 虚拟路径 virtual path 大气污染浓度 air pollution concentration 偏烧 deviant combustion ...
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污染源清单的建立是目前城市大气污染浓度预报中的一大障碍。
The making an investigation of air pollution sources is a difficult thing for prediction of urban air quality.
计算结果可为大气污染浓度的计算，大气污染防治，及环境规划等提供参考依据。
The calculated result could be used as reference for calculating pollution concentration, preventing atmospheric pollution and environmental planning etc.
论述了微风条件下城市街道峡谷中的大气污染浓度变化与路面温度、街道空间结构及风等的关系。
The article discussed under the breeze weather in the city street canyon air pollution concentration's relationship with the pavement temperature, street space structure and wind et al.
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