環境保護部發布7月份重點區域和74個城市空氣質量狀況
環境保護部發布7月份重點區域和74個城市空氣質量狀況
環境保護部有(you)關負責人近日向媒體(ti)發布了(le)2014年7月份京津(jin)冀、長三(san)角(jiao)、珠三(san)角(jiao)區域(yu)及直轄(xia)市、省會(hui)城市和計(ji)劃(hua)單列市等74個城市空氣質量狀況。
這(zhe)位負責人介紹(shao)說，7月(yue)(yue)份(fen)(fen)，74個城(cheng)市(shi)(shi)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例在25.8%～100.0%之間，平均(jun)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例為(wei)73.1%，輕度污(wu)染天(tian)(tian)數(shu)(shu)比(bi)(bi)例為(wei)20.4%，中度污(wu)染為(wei)5.4%，重度污(wu)染為(wei)1.1%，未出(chu)現嚴重污(wu)染。主要(yao)污(wu)染物(wu)為(wei)O3，其次(ci)為(wei)PM2.5。海(hai)口、昆明、廈門(men)等11個城(cheng)市(shi)(shi)的(de)(de)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例為(wei)100%，深(shen)圳、舟山、張家口等22個城(cheng)市(shi)(shi)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例在80%～100%之間，長春、大(da)連、金華等30個城(cheng)市(shi)(shi)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例在50%～80%之間，天(tian)(tian)津(jin)(jin)、滄州(zhou)、唐山等11個城(cheng)市(shi)(shi)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例不足50%。與去年同期相比(bi)(bi)，74個城(cheng)市(shi)(shi)平均(jun)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例由80.5%下降到73.1%，降低(di)7.4個百分點；京津(jin)(jin)冀(ji)(ji)、長三(san)(san)角(jiao)和珠三(san)(san)角(jiao)區(qu)域空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)均(jun)有所(suo)下降。與上月(yue)(yue)相比(bi)(bi)，平均(jun)達標(biao)(biao)天(tian)(tian)數(shu)(shu)比(bi)(bi)例由69.9%上升到73.1%，升高3.2個百分點；長三(san)(san)角(jiao)區(qu)域空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)有所(suo)改善，京津(jin)(jin)冀(ji)(ji)區(qu)域、珠三(san)(san)角(jiao)區(qu)域空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)有所(suo)下降。按照城(cheng)市(shi)(shi)環境空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)綜(zong)合(he)指(zhi)數(shu)(shu)評價(jia)，7月(yue)(yue)份(fen)(fen)空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)相對較(jiao)差的(de)(de)前10位城(cheng)市(shi)(shi)是唐山、邢臺、石家莊、保定、濟(ji)南、北京、邯鄲、天(tian)(tian)津(jin)(jin)、廊(lang)坊和衡(heng)水；空(kong)(kong)(kong)氣(qi)(qi)(qi)質(zhi)(zhi)量(liang)(liang)(liang)相對較(jiao)好的(de)(de)前10位城(cheng)市(shi)(shi)是海(hai)口、舟山、拉薩(sa)、珠海(hai)、麗水、臺州(zhou)、南寧、廈門(men)、福州(zhou)和江門(men)。
京(jing)津冀(ji)區(qu)域(yu)(yu)(yu)13個(ge)(ge)(ge)(ge)城市空氣(qi)質量(liang)(liang)達標(biao)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)在25.8%～96.8%之間，平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)為(wei)42.6%，低于74個(ge)(ge)(ge)(ge)城市平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)達標(biao)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)30.5個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)；平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)超(chao)(chao)標(biao)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)為(wei)57.4%，重度(du)污(wu)染(ran)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)高于74個(ge)(ge)(ge)(ge)城市4.4個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)。主要污(wu)染(ran)物(wu)為(wei)PM2.5，其次為(wei)O3。與去年同期(qi)相比(bi)(bi)(bi)，京(jing)津冀(ji)區(qu)域(yu)(yu)(yu)13個(ge)(ge)(ge)(ge)城市平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)達標(biao)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)由(you)(you)48.6%下(xia)(xia)降到(dao)42.6%，降低6.0個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)，空氣(qi)質量(liang)(liang)有所下(xia)(xia)降；6項監測(ce)(ce)指標(biao)中，PM2.5和(he)PM10濃(nong)度(du)分(fen)(fen)(fen)別(bie)(bie)上(shang)升(sheng)(sheng)10.1%和(he)1.7%，SO2和(he)NO2濃(nong)度(du)分(fen)(fen)(fen)別(bie)(bie)下(xia)(xia)降14.3%和(he)2.9%，CO日(ri)均(jun)(jun)(jun)(jun)(jun)值(zhi)平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)超(chao)(chao)標(biao)率(lv)持平(ping)(ping)(ping)，O3日(ri)最大(da)8小時值(zhi)平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)超(chao)(chao)標(biao)率(lv)上(shang)升(sheng)(sheng)13.2個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)。與上(shang)月相比(bi)(bi)(bi)，京(jing)津冀(ji)區(qu)域(yu)(yu)(yu)13個(ge)(ge)(ge)(ge)城市平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)達標(biao)天(tian)數(shu)(shu)(shu)比(bi)(bi)(bi)例(li)由(you)(you)48.5%下(xia)(xia)降到(dao)42.6%，降低5.9個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)，空氣(qi)質量(liang)(liang)有所下(xia)(xia)降；6項監測(ce)(ce)指標(biao)中，PM2.5和(he)PM10濃(nong)度(du)分(fen)(fen)(fen)別(bie)(bie)上(shang)升(sheng)(sheng)22.6%和(he)13.5%，SO2和(he)NO2濃(nong)度(du)分(fen)(fen)(fen)別(bie)(bie)下(xia)(xia)降11.1%和(he)2.9%，CO日(ri)均(jun)(jun)(jun)(jun)(jun)值(zhi)平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)超(chao)(chao)標(biao)率(lv)持平(ping)(ping)(ping)，O3日(ri)最大(da)8小時值(zhi)平(ping)(ping)(ping)均(jun)(jun)(jun)(jun)(jun)超(chao)(chao)標(biao)率(lv)下(xia)(xia)降0.7個(ge)(ge)(ge)(ge)百(bai)分(fen)(fen)(fen)點(dian)(dian)。
長(chang)三角區域(yu)25個(ge)城市(shi)(shi)空氣(qi)質(zhi)量達(da)標(biao)天(tian)(tian)(tian)數(shu)比(bi)例在51.6%～100.0%之間，平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)為74.9%，高于74個(ge)城市(shi)(shi)平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)達(da)標(biao)天(tian)(tian)(tian)數(shu)比(bi)例1.8個(ge)百(bai)分點；平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)超標(biao)天(tian)(tian)(tian)數(shu)比(bi)例為25.1%，未出現重(zhong)度及以(yi)上污(wu)染(ran)。主要污(wu)染(ran)物為O3，其次為PM2.5。與(yu)(yu)去年(nian)同期(qi)相比(bi)，長(chang)三角區域(yu)25個(ge)城市(shi)(shi)平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)達(da)標(biao)天(tian)(tian)(tian)數(shu)比(bi)例由85.8%下(xia)降到74.9%，降低(di)10.9個(ge)百(bai)分點，空氣(qi)質(zhi)量有(you)所下(xia)降；6項監(jian)測指(zhi)標(biao)中，PM2.5和(he)PM10濃(nong)(nong)度分別上升(sheng)31.4%和(he)9.4%，SO2濃(nong)(nong)度下(xia)降20.0%，NO2濃(nong)(nong)度和(he)CO日(ri)(ri)均(jun)(jun)值平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)超標(biao)率持平(ping)(ping)(ping)(ping)(ping)，O3日(ri)(ri)最(zui)大8小(xiao)時值平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)超標(biao)率上升(sheng)2.8個(ge)百(bai)分點。與(yu)(yu)上月相比(bi)，長(chang)三角區域(yu)25個(ge)城市(shi)(shi)平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)達(da)標(biao)天(tian)(tian)(tian)數(shu)比(bi)例由63.4%上升(sheng)到74.9%，升(sheng)高11.5個(ge)百(bai)分點，空氣(qi)質(zhi)量有(you)所改善；6項監(jian)測指(zhi)標(biao)中，PM2.5、PM10、SO2和(he)NO2濃(nong)(nong)度分別下(xia)降20.7%、16.7%、15.8%和(he)15.6%，CO日(ri)(ri)均(jun)(jun)值平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)超標(biao)率持平(ping)(ping)(ping)(ping)(ping)，O3日(ri)(ri)最(zui)大8小(xiao)時值平(ping)(ping)(ping)(ping)(ping)均(jun)(jun)超標(biao)率下(xia)降9.8個(ge)百(bai)分點。
珠三(san)角(jiao)區(qu)(qu)域9個(ge)(ge)(ge)(ge)城(cheng)市(shi)空(kong)氣質量達(da)標(biao)(biao)(biao)(biao)(biao)天(tian)數(shu)(shu)比(bi)例在54.8%～100.0%之間，平(ping)(ping)均(jun)為81.9%，高于74個(ge)(ge)(ge)(ge)城(cheng)市(shi)平(ping)(ping)均(jun)達(da)標(biao)(biao)(biao)(biao)(biao)天(tian)數(shu)(shu)比(bi)例8.8個(ge)(ge)(ge)(ge)百分(fen)(fen)點(dian)；平(ping)(ping)均(jun)超標(biao)(biao)(biao)(biao)(biao)天(tian)數(shu)(shu)比(bi)例為18.1%，其中(zhong)重(zhong)度(du)(du)(du)污(wu)染比(bi)例為1.1%。主(zhu)要污(wu)染物為O3，其次(ci)為PM2.5。與(yu)去年同期相比(bi)，珠三(san)角(jiao)區(qu)(qu)域9個(ge)(ge)(ge)(ge)城(cheng)市(shi)平(ping)(ping)均(jun)達(da)標(biao)(biao)(biao)(biao)(biao)天(tian)數(shu)(shu)比(bi)例由93.2%下降(jiang)(jiang)到81.9%，降(jiang)(jiang)低(di)11.3個(ge)(ge)(ge)(ge)百分(fen)(fen)點(dian)；6項(xiang)監測指(zhi)標(biao)(biao)(biao)(biao)(biao)中(zhong)，除CO日均(jun)值(zhi)平(ping)(ping)均(jun)超標(biao)(biao)(biao)(biao)(biao)率(lv)(lv)持平(ping)(ping)外，其他(ta)5項(xiang)污(wu)染物濃(nong)度(du)(du)(du)均(jun)不同程度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)，其中(zhong)PM2.5濃(nong)度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)36.8%，PM10濃(nong)度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)26.5%，SO2濃(nong)度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)7.7%，NO2濃(nong)度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)4.0%，O3日最大8小(xiao)時(shi)值(zhi)平(ping)(ping)均(jun)超標(biao)(biao)(biao)(biao)(biao)率(lv)(lv)上(shang)(shang)升(sheng)(sheng)(sheng)10.8個(ge)(ge)(ge)(ge)百分(fen)(fen)點(dian)，空(kong)氣質量有所下降(jiang)(jiang)。與(yu)上(shang)(shang)月相比(bi)，珠三(san)角(jiao)區(qu)(qu)域9個(ge)(ge)(ge)(ge)城(cheng)市(shi)平(ping)(ping)均(jun)達(da)標(biao)(biao)(biao)(biao)(biao)天(tian)數(shu)(shu)比(bi)例由84.3%下降(jiang)(jiang)到81.9%，降(jiang)(jiang)低(di)2.4個(ge)(ge)(ge)(ge)百分(fen)(fen)點(dian)；6項(xiang)監測指(zhi)標(biao)(biao)(biao)(biao)(biao)中(zhong)，PM2.5、PM10和NO2濃(nong)度(du)(du)(du)分(fen)(fen)別下降(jiang)(jiang)3.7%、2.3%和7.1%，SO2濃(nong)度(du)(du)(du)上(shang)(shang)升(sheng)(sheng)(sheng)7.7%，CO日均(jun)值(zhi)平(ping)(ping)均(jun)超標(biao)(biao)(biao)(biao)(biao)率(lv)(lv)持平(ping)(ping)，O3日最大8小(xiao)時(shi)值(zhi)平(ping)(ping)均(jun)超標(biao)(biao)(biao)(biao)(biao)率(lv)(lv)上(shang)(shang)升(sheng)(sheng)(sheng)2.0個(ge)(ge)(ge)(ge)百分(fen)(fen)點(dian)。
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