7月份合肥(fei)空氣(qi)質量優良率達到了(le)93.5%，空氣(qi)質量達到一級(ji)“優”的(de)天數為12天，超過(guo)去年(nian)1~7月的(de)總和(he)，創(chuang)下了(le)空氣(qi)質量新(xin)標準實施(shi)以來的(de)新(xin)紀錄。

　　據(ju)統計，7月(yue)份合肥(fei)空氣質(zhi)量(liang)優(you)為(wei)12天(tian)(tian)(tian)(tian)，良(liang)(liang)好17天(tian)(tian)(tian)(tian)，輕(qing)度(du)污(wu)(wu)(wu)染2天(tian)(tian)(tian)(tian)，空氣質(zhi)量(liang)優(you)良(liang)(liang)率93.5%。與去(qu)年(nian)(nian)7月(yue)相(xiang)比，其(qi)中優(you)增(zeng)加9天(tian)(tian)(tian)(tian)，中度(du)污(wu)(wu)(wu)染減少2天(tian)(tian)(tian)(tian)，輕(qing)度(du)污(wu)(wu)(wu)染減少4天(tian)(tian)(tian)(tian)(2014年(nian)(nian)7月(yue)優(you)3天(tian)(tian)(tian)(tian)，良(liang)(liang)好20天(tian)(tian)(tian)(tian)，輕(qing)度(du)污(wu)(wu)(wu)染6天(tian)(tian)(tian)(tian)，中度(du)污(wu)(wu)(wu)染2天(tian)(tian)(tian)(tian)，優(you)良(liang)(liang)率為(wei)74%)。單(dan)月(yue)空氣質(zhi)量(liang)出現12天(tian)(tian)(tian)(tian)“優(you)”，比去(qu)年(nian)(nian)1~7月(yue)總(zong)的8天(tian)(tian)(tian)(tian)優(you)還要多出4天(tian)(tian)(tian)(tian)。

　　7月份后(hou)期(qi)，曾(ceng)經一直(zhi)占據合肥(fei)首要污染物的(de)PM2.5也是(shi)(shi)“退隱江湖多(duo)日(ri)”，取(qu)而代之(zhi)的(de)是(shi)(shi)PM10。7月24日(ri)~8月1日(ri)，合肥(fei)空氣質量(liang)指數AQI連(lian)續9天在55以下，也就是(shi)(shi)說(shuo)即使空氣質量(liang)是(shi)(shi)二級(ji)“良好(hao)”，也是(shi)(shi)接近一級(ji)“優”的(de)水(shui)平。

　　l來源：合肥市環保局(ju)