環境保護部(bu)有關負(fu)責(ze)人(ren)近日向媒體(ti)發布了2014年3月份及第一季度(du)京津冀、長三(san)角(jiao)、珠(zhu)三(san)角(jiao)區域及直轄市、省會城(cheng)市和計劃單列市等74個城(cheng)市空氣質量狀況。

這(zhe)位負責人(ren)指出，3月(yue)份，74個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)平(ping)(ping)(ping)(ping)均(jun)(jun)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)62.3%，輕(qing)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)24.5%，中(zhong)(zhong)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)7.4%，重(zhong)(zhong)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)5.0%，嚴(yan)重(zhong)(zhong)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)0.8%。海(hai)口、深(shen)圳、珠海(hai)等(deng)6個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)的達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)100%，南昌、昆明、舟(zhou)山等(deng)16個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)的達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)在80%～100%之間(jian)，廣州、臺州、金華(hua)等(deng)28個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)范圍為(wei)(wei)(wei)(wei)(wei)(wei)50%～80%，邢(xing)臺、西(xi)安(an)、邯鄲等(deng)24個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)不足50%。超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)以(yi)(yi)(yi)PM2.5為(wei)(wei)(wei)(wei)(wei)(wei)首(shou)要(yao)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)物的天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)最多(duo)，占(zhan)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)的75.8%；其(qi)(qi)(qi)次是PM10，占(zhan)21.6%。按照城(cheng)(cheng)(cheng)市(shi)(shi)環境(jing)空(kong)氣(qi)質(zhi)(zhi)量(liang)綜合指數(shu)(shu)(shu)(shu)(shu)評價，3月(yue)份空(kong)氣(qi)質(zhi)(zhi)量(liang)相對(dui)較差的前10位城(cheng)(cheng)(cheng)市(shi)(shi)分別是邢(xing)臺、石家莊、唐山、保(bao)定(ding)、邯鄲、衡水(shui)、廊坊、濟南、烏魯(lu)木齊和沈陽；空(kong)氣(qi)質(zhi)(zhi)量(liang)相對(dui)較好的前10位城(cheng)(cheng)(cheng)市(shi)(shi)是海(hai)口、拉(la)薩、舟(zhou)山、珠海(hai)、深(shen)圳、惠(hui)州、貴陽、南昌、中(zhong)(zhong)山和南寧。京津冀地(di)區(qu)(qu)13個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)空(kong)氣(qi)質(zhi)(zhi)量(liang)平(ping)(ping)(ping)(ping)均(jun)(jun)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)35.1%，平(ping)(ping)(ping)(ping)均(jun)(jun)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)64.9%，其(qi)(qi)(qi)中(zhong)(zhong)重(zhong)(zhong)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)21.2%，嚴(yan)重(zhong)(zhong)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)3.3%。超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)以(yi)(yi)(yi)PM2.5為(wei)(wei)(wei)(wei)(wei)(wei)首(shou)要(yao)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)物的天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)最多(duo)，占(zhan)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)的75.6%；其(qi)(qi)(qi)次是PM10，占(zhan)24.4%。長(chang)三角(jiao)地(di)區(qu)(qu)25個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)空(kong)氣(qi)質(zhi)(zhi)量(liang)平(ping)(ping)(ping)(ping)均(jun)(jun)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)65.3%，平(ping)(ping)(ping)(ping)均(jun)(jun)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)34.7%，其(qi)(qi)(qi)中(zhong)(zhong)重(zhong)(zhong)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)1.6%，嚴(yan)重(zhong)(zhong)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)0.3%。超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)中(zhong)(zhong)以(yi)(yi)(yi)PM2.5為(wei)(wei)(wei)(wei)(wei)(wei)首(shou)要(yao)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)物的天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)最多(duo)，占(zhan)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)的89.8%；其(qi)(qi)(qi)次是PM10，占(zhan)6.4%。珠三角(jiao)地(di)區(qu)(qu)9個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)空(kong)氣(qi)質(zhi)(zhi)量(liang)平(ping)(ping)(ping)(ping)均(jun)(jun)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)87.4%，平(ping)(ping)(ping)(ping)均(jun)(jun)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)12.6%，其(qi)(qi)(qi)中(zhong)(zhong)重(zhong)(zhong)度(du)(du)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)比(bi)(bi)(bi)(bi)(bi)例(li)(li)為(wei)(wei)(wei)(wei)(wei)(wei)0.4%，無嚴(yan)重(zhong)(zhong)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)。超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)以(yi)(yi)(yi)PM2.5為(wei)(wei)(wei)(wei)(wei)(wei)首(shou)要(yao)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)物的天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)最多(duo)，占(zhan)超(chao)(chao)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)的85.3%；其(qi)(qi)(qi)次是O3，占(zhan)8.8%。與(yu)上年(nian)同(tong)期相比(bi)(bi)(bi)(bi)(bi)，2014年(nian)3月(yue)，74個(ge)(ge)(ge)城(cheng)(cheng)(cheng)市(shi)(shi)空(kong)氣(qi)質(zhi)(zhi)量(liang)達(da)(da)(da)(da)標(biao)(biao)(biao)(biao)天(tian)(tian)(tian)數(shu)(shu)(shu)(shu)(shu)比(bi)(bi)(bi)(bi)(bi)例(li)(li)提高4.2個(ge)(ge)(ge)百分點， PM2.5和PM10等(deng)污(wu)(wu)(wu)(wu)染(ran)(ran)(ran)(ran)(ran)物平(ping)(ping)(ping)(ping)均(jun)(jun)濃度(du)(du)有所下降(jiang)。

綜(zong)合分析2014年(nian)(nian)第(di)一(yi)(yi)季度重點區域和(he)74個(ge)城市(shi)(shi)(shi)空(kong)氣質量(liang)，結果顯示，第(di)一(yi)(yi)季度74個(ge)城市(shi)(shi)(shi)達(da)(da)標(biao)天數(shu)(shu)比(bi)(bi)例(li)范圍為(wei)(wei)3.3%～97.3%，平均為(wei)(wei)53.1%，與(yu)上年(nian)(nian)同期相比(bi)(bi)提高5.1個(ge)百分點。平均超(chao)(chao)標(biao)天數(shu)(shu)比(bi)(bi)例(li)為(wei)(wei)46.9%，其中輕(qing)度污(wu)染(ran)占24.0%，中度污(wu)染(ran)占9.8%，重度污(wu)染(ran)占9.9%，嚴重污(wu)染(ran)占3.2%。拉薩、海(hai)口、昆(kun)明等(deng)11個(ge)城市(shi)(shi)(shi)的(de)達(da)(da)標(biao)天數(shu)(shu)比(bi)(bi)例(li)在(zai)80%～100%之(zhi)間(jian)，江門、臺(tai)州(zhou)、南(nan)昌(chang)等(deng)30個(ge)城市(shi)(shi)(shi)達(da)(da)標(biao)天數(shu)(shu)比(bi)(bi)例(li)范圍為(wei)(wei)50%～80%，邢(xing)臺(tai)、西安、保定等(deng)33個(ge)城市(shi)(shi)(shi)達(da)(da)標(biao)天數(shu)(shu)比(bi)(bi)例(li)不足(zu)50%。超(chao)(chao)標(biao)天數(shu)(shu)中以PM2.5為(wei)(wei)首要污(wu)染(ran)物的(de)天數(shu)(shu)最多，占超(chao)(chao)標(biao)天數(shu)(shu)的(de)87.4%；其次是(shi)(shi)PM10，占10.3%。按(an)照城市(shi)(shi)(shi)環境空(kong)氣質量(liang)綜(zong)合指數(shu)(shu)評價，第(di)一(yi)(yi)季度空(kong)氣質量(liang)相對較(jiao)差的(de)前(qian)(qian)10位城市(shi)(shi)(shi)分別(bie)是(shi)(shi)邢(xing)臺(tai)、石(shi)家莊、保定、唐山、邯鄲、衡水、濟(ji)南(nan)、西安、廊坊和(he)成都；空(kong)氣質量(liang)相對較(jiao)好的(de)前(qian)(qian)10位城市(shi)(shi)(shi)是(shi)(shi)海(hai)口、拉薩、舟山、深圳(zhen)、珠海(hai)、福州(zhou)、惠(hui)州(zhou)、廈門、昆(kun)明和(he)麗水。

京津(jin)冀地區13個城市空氣質量達標天(tian)數比例范圍為3.3%～66.3%，平均為30.6%，平均超標天(tian)數比例為69.4%，其中重(zhong)(zhong)度污(wu)(wu)染天(tian)數比例為22.2%，嚴(yan)重(zhong)(zhong)污(wu)(wu)染天(tian)數比例為13.3%。與上(shang)年同期相比，重(zhong)(zhong)度污(wu)(wu)染天(tian)數持(chi)平，嚴(yan)重(zhong)(zhong)污(wu)(wu)染天(tian)數減(jian)(jian)少62天(tian)，石家(jia)莊、滄(cang)州和天(tian)津(jin)重(zhong)(zhong)度污(wu)(wu)染天(tian)數減(jian)(jian)少幅度在10天(tian)以上(shang)。

長三角(jiao)地區25個城市空氣質(zhi)量達標(biao)天(tian)數比例范(fan)圍為41.1%～91.1%，平(ping)均(jun)(jun)為58.2%，平(ping)均(jun)(jun)超(chao)標(biao)天(tian)數比例為41.8%，其中重(zhong)(zhong)度(du)污(wu)染比例為7.7%，嚴(yan)重(zhong)(zhong)污(wu)染比例為0.7%。超(chao)標(biao)天(tian)數中以PM2.5為首要污(wu)染物的(de)天(tian)數最(zui)多(duo)，占超(chao)標(biao)天(tian)數的(de)96.3%；其次(ci)是PM10，占2.3%。

珠三(san)角地區9個(ge)城市(shi)空氣質(zhi)量達標(biao)(biao)天(tian)數比例范圍為(wei)52.2%～90.0%，平(ping)均(jun)為(wei)76.0%，平(ping)均(jun)超(chao)標(biao)(biao)天(tian)數比例為(wei)24.0%，其(qi)中重(zhong)度污(wu)染(ran)比例為(wei)0.7%，無(wu)嚴重(zhong)污(wu)染(ran)。超(chao)標(biao)(biao)天(tian)數中以PM2.5為(wei)首(shou)要污(wu)染(ran)物的天(tian)數最多(duo)，占超(chao)標(biao)(biao)天(tian)數的90.6%；其(qi)次是NO2，占6.8%。