摘要
从实际环评工作中如何确定扩散参数的角度，讨论其对污染物落地浓度的影响，提高在一定条件下切合实际的建议。
The determination of diffusion parameter in environmental assessment and its influence on theestimate of pollution ground concentration are discussed and some practicable suggestions are made.
关键词
湍流扩散
扩散参数
污染浓度
空气污染
污染物
：Turbulence diffusion ；Diffusion parameter；Balance ball；Three-axis anemometer
Gauss mode；Pollution concentration.
