pollutant dispersion meaning in English

污染物传播
污染物扩散

Numerical study on pollutant dispersion in urban street canyons
街道峡谷内机动车排放污染物的数值模拟
The prediction and field observation for pollutant dispersion from vehicular exhaust plume in real atmospheric environment
实际大气条件下汽车尾气扩散的模拟与观测
Moreover , the simularity scale relations for the tidal current and sediment experiment and the tidal current and pollutant dispersion experiment are also derived
同时，还导出了潮流泥沙试验和潮流污染物扩散试验的相似比尺关系。
Based on previous study of pollutant dispersion in vertical direction , an empirical formula for determining the mean value of turbulence viscosity coefficient in numerical simulation of tides in vertical direction was worked out and applied to 3 - d numerical simulation of tides for changxing island reach in yangtze river estuary
摘要在已有污染物垂向扩散过程研究的基础上，提出了确定潮流数值模拟中垂向紊动黏性系数的垂线平均值的经验方法，并将此方法应用到长江口长兴岛段的潮流三维数值模拟中。