服务热线：
据(ju)环(huan)保部网站消息，环(huan)境(jing)保护部有关负责人今日向媒体(ti)发布京津(jin)(jin)冀、长三角、珠三角区(qu)域及直辖(xia)市(shi)、省会(hui)城(cheng)(cheng)市(shi)和(he)(he)计划单列市(shi)等74个城(cheng)(cheng)市(shi)2013年度空气质量(liang)状况。京津(jin)(jin)冀区(qu)域所有城(cheng)(cheng)市(shi)PM2.5和(he)(he)PM10年平均(jun)浓度均(jun)超(chao)标，空气质量(liang)相(xiang)对较差的前10位城(cheng)(cheng)市(shi)是邢台、石家(jia)庄、邯郸(dan)、唐(tang)山、保定、济南、衡水、西安、廊坊和(he)(he)郑州(zhou)。
据环保(bao)部(bu)一位负责(ze)人(ren)指出，通(tong)过分析(xi)74个城(cheng)(cheng)市(shi)(shi)(shi)空(kong)气(qi)(qi)质量(liang)监测(ce)结(jie)果，可以得(de)出以下结(jie)论：一是(shi)(shi)京(jing)津(jin)冀(ji)、长三(san)(san)角、珠三(san)(san)角是(shi)(shi)空(kong)气(qi)(qi)污(wu)染(ran)(ran)(ran)(ran)(ran)相对较重(zhong)(zhong)区域(yu)。京(jing)津(jin)冀(ji)区域(yu)空(kong)气(qi)(qi)污(wu)染(ran)(ran)(ran)(ran)(ran)最(zui)重(zhong)(zhong)。京(jing)津(jin)冀(ji)13个城(cheng)(cheng)市(shi)(shi)(shi)中(zhong)(zhong)，有11个城(cheng)(cheng)市(shi)(shi)(shi)排(pai)在(zai)污(wu)染(ran)(ran)(ran)(ran)(ran)最(zui)重(zhong)(zhong)的(de)(de)前(qian)20位，其(qi)中(zhong)(zhong)有7个城(cheng)(cheng)市(shi)(shi)(shi)排(pai)在(zai)前(qian)10位，部(bu)分城(cheng)(cheng)市(shi)(shi)(shi)空(kong)气(qi)(qi)重(zhong)(zhong)度(du)及以上污(wu)染(ran)(ran)(ran)(ran)(ran)天数(shu)占(zhan)全(quan)年(nian)天数(shu)40%左右。二(er)(er)(er)是(shi)(shi)复合(he)型(xing)污(wu)染(ran)(ran)(ran)(ran)(ran)特(te)征突出。传统的(de)(de)煤(mei)烟(yan)型(xing)污(wu)染(ran)(ran)(ran)(ran)(ran)、汽车尾(wei)气(qi)(qi)污(wu)染(ran)(ran)(ran)(ran)(ran)与(yu)二(er)(er)(er)次污(wu)染(ran)(ran)(ran)(ran)(ran)相互叠加(jia)，部(bu)分城(cheng)(cheng)市(shi)(shi)(shi)不(bu)仅(jin)PM2.5和(he)PM10超(chao)标，NO2、O3也存(cun)在(zai)不(bu)同程度(du)超(chao)标现象(xiang)(xiang)。三(san)(san)是(shi)(shi)空(kong)气(qi)(qi)污(wu)染(ran)(ran)(ran)(ran)(ran)呈现明显(xian)的(de)(de)季(ji)(ji)节性特(te)征。一季(ji)(ji)度(du)和(he)四季(ji)(ji)度(du)是(shi)(shi)空(kong)气(qi)(qi)重(zhong)(zhong)污(wu)染(ran)(ran)(ran)(ran)(ran)高(gao)发(fa)(fa)季(ji)(ji)节，74个城(cheng)(cheng)市(shi)(shi)(shi)PM2.5季(ji)(ji)均(jun)浓(nong)度(du)分别为(wei)96微克(ke)(ke)/立(li)方(fang)(fang)米、93微克(ke)(ke)/立(li)方(fang)(fang)米，是(shi)(shi)第二(er)(er)(er)、三(san)(san)季(ji)(ji)度(du)PM2.5季(ji)(ji)均(jun)浓(nong)度(du)的(de)(de)近2倍。尤(you)以冬(dong)季(ji)(ji)发(fa)(fa)生频率(lv)最(zui)高(gao)，2013年(nian)1月和(he)12月重(zhong)(zhong)污(wu)染(ran)(ran)(ran)(ran)(ran)天数(shu)占(zhan)全(quan)年(nian)重(zhong)(zhong)污(wu)染(ran)(ran)(ran)(ran)(ran)总天数(shu)的(de)(de)53.4%。除污(wu)染(ran)(ran)(ran)(ran)(ran)物排(pai)放量(liang)大等因素，北方(fang)(fang)地(di)区冬(dong)季(ji)(ji)燃煤(mei)取暖和(he)不(bu)利气(qi)(qi)象(xiang)(xiang)条件(jian)是(shi)(shi)冬(dong)季(ji)(ji)空(kong)气(qi)(qi)重(zhong)(zhong)污(wu)染(ran)(ran)(ran)(ran)(ran)发(fa)(fa)生的(de)(de)重(zhong)(zhong)要因素。
