The main factors causing environmental pollution included vehicles increase , diffuse pollution growth , imperfect urban basic facilities construction , disadvantageous effect of meteorological condition in winter and industrial pollution around et al 長(zhǎng)治市環(huán)境空氣質(zhì)量超過國(guó)家二級(jí)標(biāo)準(zhǔn)的主要影響因素為機(jī)動(dòng)車輛增加、面源污染嚴(yán)重、城市基礎(chǔ)設(shè)施不完善、冬季氣象條件不利和周邊工業(yè)污染對(duì)城市的影響等諸方面。