The paper analyses the diffusion conditions of air boundary layers, the distribution and forecast of sourceairpollution and the current situation of air pollution.
分析了大气边界层扩散条件、大气污染源分布及预测、大气污染现状。
2
Wind is a clean source of renewable energy that produces no air or water pollution.
风是一种清洁的可再生能源，不产生空气和水污染。
3
A examination of the picture immediately reveals that the source of its mood is the airpollution resulting from a huge number of automobiles spread around its surface.