?? 2020年12月(yue)15日(ri),中(zhong)國環境(jing)監(jian)測(ce)總站聯合中(zhong)央氣象(xiang)臺、國家大氣污(wu)染防治(zhi)攻關聯合中(zhong)心、東北、華南(nan)、西(xi)南(nan)、西(xi)北、長三角(jiao)區(qu)域空氣質量(liang)預(yu)(yu)測(ce)預(yu)(yu)報中(zhong)心和北京市生態環境(jing)監(jian)測(ce)中(zhong)心,開展12月(yue)下(xia)半月(yue)(16-31日(ri))全國空氣質量(liang)預(yu)(yu)報會商。 12月(yue)下半(ban)月(yue),受間(jian)隙性(xing)冷空氣(qi)影響,全國大(da)部(bu)空氣(qi)質(zhi)量整體相對較好,以良為主。其中(zhong),18-20日(ri)(ri)(ri),京津冀中(zhong)南(nan)(nan)部(bu)、長(chang)三(san)角北部(bu)、蘇皖(wan)魯豫交界地(di)區可能出(chu)現(xian)輕至(zhi)中(zhong)度污染(ran)過程(cheng);20-22日(ri)(ri)(ri),京津冀中(zhong)南(nan)(nan)部(bu)、長(chang)三(san)角、蘇皖(wan)魯豫交界、華南(nan)(nan)北部(bu)等局地(di)可能出(chu)現(xian)中(zhong)至(zhi)重度污染(ran)過程(cheng);16-27日(ri)(ri)(ri),陜西關中(zhong)地(di)區和(he)新疆天山北坡等受沙塵天氣(qi)影響,可能出(chu)現(xian)顆粒物(wu)中(zhong)至(zhi)重度污染(ran)過程(cheng)。 京津(jin)冀及(ji)周邊區(qu)域:12月下半月,區(qu)域大部(bu)(bu)空(kong)氣質量(liang)以良至輕度(du)污染(ran)為主(zhu),首要(yao)污染(ran)物為PM2.5。其中(zhong)(zhong)(zhong),17日,河(he)北(bei)(bei)中(zhong)(zhong)(zhong)南(nan)(nan)部(bu)(bu)、山(shan)(shan)西(xi)(xi)中(zhong)(zhong)(zhong)南(nan)(nan)部(bu)(bu)、山(shan)(shan)東(dong)西(xi)(xi)部(bu)(bu)及(ji)河(he)南(nan)(nan)中(zhong)(zhong)(zhong)北(bei)(bei)部(bu)(bu)可能出現(xian)(xian)輕至中(zhong)(zhong)(zhong)度(du)污染(ran)過(guo)程;18-20日,河(he)北(bei)(bei)中(zhong)(zhong)(zhong)南(nan)(nan)部(bu)(bu)、河(he)南(nan)(nan)中(zhong)(zhong)(zhong)北(bei)(bei)部(bu)(bu)及(ji)山(shan)(shan)東(dong)西(xi)(xi)部(bu)(bu)可能出現(xian)(xian)中(zhong)(zhong)(zhong)度(du)污染(ran)過(guo)程;21-22日,河(he)北(bei)(bei)中(zhong)(zhong)(zhong)部(bu)(bu)可能出現(xian)(xian)中(zhong)(zhong)(zhong)至重(zhong)度(du)污染(ran)過(guo)程,山(shan)(shan)西(xi)(xi)中(zhong)(zhong)(zhong)南(nan)(nan)部(bu)(bu)、山(shan)(shan)東(dong)西(xi)(xi)部(bu)(bu)及(ji)河(he)南(nan)(nan)中(zhong)(zhong)(zhong)北(bei)(bei)部(bu)(bu)局地可能出現(xian)(xian)中(zhong)(zhong)(zhong)度(du)污染(ran)過(guo)程。 北京市:12月(yue)下(xia)半月(yue),空氣質量以優(you)良為主。其(qi)中(zhong),21-23日(ri)可能出(chu)現(xian)PM2.5輕(qing)度污染過程(cheng)。 長三角區域(yu):12月(yue)下半月(yue),區域(yu)北部空氣質量以(yi)輕至中(zhong)度(du)(du)污(wu)染(ran)為主(zhu),首要污(wu)染(ran)物為PM2.5;南部以(yi)良(liang)為主(zhu)。其中(zhong),18-20日,區域(yu)中(zhong)南部為良(liang)至輕度(du)(du)污(wu)染(ran);21-23日,區域(yu)整(zheng)體(ti)為輕至中(zhong)度(du)(du)污(wu)染(ran),局地可能出現重度(du)(du)污(wu)染(ran);24-30日,區域(yu)整(zheng)體(ti)以(yi)良(liang)為主(zhu)。 蘇皖魯豫(yu)區(qu)域(yu):12月(yue)下半月(yue),16-23日(ri)(ri)區(qu)域(yu)空氣(qi)質量以(yi)輕至中(zhong)度(du)(du)(du)污(wu)染為(wei)主,首(shou)要(yao)污(wu)染物(wu)為(wei)PM2.5;24-30日(ri)(ri)以(yi)良為(wei)主。其中(zhong),18-20日(ri)(ri)區(qu)域(yu)可能(neng)出現PM2.5中(zhong)至重(zhong)度(du)(du)(du)污(wu)染過程;21-23日(ri)(ri),局地可能(neng)出現重(zhong)度(du)(du)(du)污(wu)染。 汾渭平(ping)原(yuan):12月(yue)下半月(yue),區域空(kong)氣質量以良至輕度(du)污染為主,首(shou)要污染物為PM2.5。其中(zhong)(zhong),16-17日、20-21日及24-28日,可(ke)能(neng)出現(xian)PM2.5輕至中(zhong)(zhong)度(du)污染過程(cheng),局地可(ke)能(neng)出現(xian)重度(du)污染。 東北區(qu)域:12月下半月,區(qu)域空氣質(zhi)量(liang)以優良為主。其中(zhong),16-17日(ri)及20-22日(ri),局(ju)地可(ke)能(neng)出(chu)現(xian)顆(ke)粒物輕至中(zhong)度污染(ran)過程。 華南(nan)(nan)區域(yu):12月下半月,區域(yu)大部空(kong)氣(qi)質量以(yi)優良為(wei)(wei)主。其中(zhong),16-21日,湖(hu)北(bei)(bei)中(zhong)東(dong)部和(he)湖(hu)南(nan)(nan)中(zhong)北(bei)(bei)部為(wei)(wei)良至輕度(du)污(wu)(wu)染(ran)(ran)(ran);22-25日,湖(hu)北(bei)(bei)中(zhong)東(dong)部可(ke)能出現輕至中(zhong)度(du)污(wu)(wu)染(ran)(ran)(ran)過程,湖(hu)南(nan)(nan)和(he)廣西大部、廣東(dong)珠三角地區為(wei)(wei)良至輕度(du)污(wu)(wu)染(ran)(ran)(ran);26-31日,湖(hu)北(bei)(bei)中(zhong)東(dong)部、湖(hu)南(nan)(nan)中(zhong)北(bei)(bei)部為(wei)(wei)良至輕度(du)污(wu)(wu)染(ran)(ran)(ran),首要污(wu)(wu)染(ran)(ran)(ran)物均為(wei)(wei)PM2.5。 西南區(qu)域:12月(yue)下半月(yue),區(qu)域大(da)部以優良(liang)為主。其中,19-24日及29-31日,成(cheng)渝城市群及貴州局(ju)地可(ke)能出(chu)現PM2.5輕度(du)污染(ran)過程(cheng),成(cheng)渝城市群局(ju)地可(ke)能出(chu)現短時(shi)中度(du)污染(ran)過程(cheng)。 西北區域:12月下半月,區域大部以良至輕度(du)污(wu)染(ran)(ran)為(wei)主,首要污(wu)染(ran)(ran)物(wu)為(wei)顆粒(li)物(wu)。其中,16-17日、20-21日及24-28日,關中地(di)區可能出現PM2.5輕至中度(du)污(wu)染(ran)(ran)過(guo)程(cheng),局(ju)地(di)可能出現短時(shi)重度(du)污(wu)染(ran)(ran);新疆天山北坡城市可能出現持續性PM2.5中至重度(du)污(wu)染(ran)(ran)過(guo)程(cheng)。 |