生態環境部日前向媒(mei)體通報了2019年(nian)3月(yue)和1-3月(yue)全國空氣(qi)質量狀況(kuang)。

全國337個地級及(ji)以(yi)上(shang)城(cheng)市2019年(nian)3月平均優良天數比(bi)(bi)(bi)(bi)例(li)為(wei)(wei)(wei)88.3%，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)上(shang)升5.1個百(bai)分(fen)點；PM2.5濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)41微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)4.7%；PM10濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)74微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)1.3%；O3濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)116微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)5.7%；SO2濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)12微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)20.0%；NO2濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)30微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)持(chi)(chi)(chi)平；CO濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)1.2毫克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)持(chi)(chi)(chi)平。1-3月，平均優良天數比(bi)(bi)(bi)(bi)例(li)為(wei)(wei)(wei)76.9%，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)上(shang)升0.1個百(bai)分(fen)點；96個城(cheng)市環(huan)境空氣質量達標，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)增加(jia)28個；PM2.5濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)54微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)上(shang)升1.9%；PM10濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)84微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)持(chi)(chi)(chi)平；O3濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)105微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)3.7%；SO2濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)14微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)下(xia)降(jiang)(jiang)22.2%；NO2濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)32微(wei)克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)上(shang)升3.2%；CO濃(nong)(nong)(nong)(nong)度(du)為(wei)(wei)(wei)1.6毫克(ke)(ke)(ke)(ke)(ke)/立(li)(li)(li)方(fang)米(mi)，同(tong)(tong)(tong)(tong)(tong)(tong)(tong)比(bi)(bi)(bi)(bi)持(chi)(chi)(chi)平。

京(jing)津(jin)冀及周邊地區(qu)“2+26”城(cheng)市3月(yue)平(ping)均(jun)優良(liang)天數比(bi)例為(wei)(wei)74.5%，同(tong)比(bi)上升(sheng)20.8個百分點(dian)；PM2.5濃度(du)為(wei)(wei)54微克(ke)/立(li)方米，同(tong)比(bi)下降(jiang)28.0%。1-3月(yue)，平(ping)均(jun)優良(liang)天數比(bi)例為(wei)(wei)49.1%，同(tong)比(bi)下降(jiang)3.8個百分點(dian)；PM2.5濃度(du)為(wei)(wei)90微克(ke)/立(li)方米，同(tong)比(bi)上升(sheng)8.4%。

北京市3月優(you)(you)良天數比例為(wei)(wei)71.0%，同比上升(sheng)(sheng)25.8個百分點；PM2.5濃度(du)為(wei)(wei)52微克/立方米，同比下(xia)降38.8%。1-3月，優(you)(you)良天數比例為(wei)(wei)71.1%，同比上升(sheng)(sheng)3.3個百分點；PM2.5濃度(du)為(wei)(wei)52微克/立方米，同比下(xia)降7.1%。

長(chang)三角地區41個(ge)(ge)城市3月平均優良(liang)(liang)天數(shu)比(bi)(bi)例為(wei)84.2%，同(tong)(tong)比(bi)(bi)下降(jiang)3.1個(ge)(ge)百分點；PM2.5濃(nong)度為(wei)51微克/立方(fang)米，同(tong)(tong)比(bi)(bi)上升(sheng)6.2%。1-3月，平均優良(liang)(liang)天數(shu)比(bi)(bi)例為(wei)70.6%，同(tong)(tong)比(bi)(bi)下降(jiang)2.1個(ge)(ge)百分點；PM2.5濃(nong)度為(wei)61微克/立方(fang)米，同(tong)(tong)比(bi)(bi)下降(jiang)1.6%。

汾渭平原11個(ge)城市3月(yue)平均(jun)優良(liang)(liang)天數(shu)比例為(wei)79.2%，同(tong)比上升26.1個(ge)百分(fen)點；PM2.5濃(nong)度為(wei)47微(wei)克/立方米，同(tong)比下(xia)降35.6%。1-3月(yue)，平均(jun)優良(liang)(liang)天數(shu)比例為(wei)45.2%，同(tong)比下(xia)降1.0個(ge)百分(fen)點；PM2.5濃(nong)度為(wei)95微(wei)克/立方米，同(tong)比上升9.2%。

2019年3月，168個(ge)重點城市(shi)中淄博、棗(zao)莊、濰(wei)坊、臨沂(yi)市(shi)等20個(ge)城市(shi)空氣質量相對較差（從第(di)(di)168名(ming)(ming)到第(di)(di)149名(ming)(ming)）；海口、拉薩、深圳市(shi)等20個(ge)城市(shi)空氣質量相對較好（從第(di)(di)1名(ming)(ming)到第(di)(di)20名(ming)(ming)）。

2019年1-3月，168個重點城(cheng)(cheng)市中臨(lin)汾、石家莊(zhuang)、邢臺市等20個城(cheng)(cheng)市空(kong)氣(qi)質(zhi)(zhi)量相對較差（從第168名(ming)(ming)到并列第149名(ming)(ming)）；拉薩(sa)、海口、深圳市等21個城(cheng)(cheng)市空(kong)氣(qi)質(zhi)(zhi)量相對較好（從第1名(ming)(ming)到并列第20名(ming)(ming)）。

2019年3月和1-3月168個重點城市排名前20位和后20位城市名單(dan)詳(xiang)見今日二版

生態環境部通報今(jin)年(nian)三月和第一(yi)季度全國空氣質量狀(zhuang)況

一(yi)季度空氣質(zhi)量(liang)達標城(cheng)市同比(bi)增(zeng)加二十八個

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