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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報道

精彩|　　9月??(yue)??，汾??(fen)渭??(wei)平??(ping)原??(yuan)11個??(ge)城??(cheng)市??(shi)由??(you)沙??(sha)塵??(chen)天?(tian)氣??(qi)導(dǎo)??(dao)致??(zhi)的??(de)平??(ping)均??(jun)超??(chao)標(biāo)??(biao)天??(tian)數(shù)??(shu)比??(bi)例??(li)為??(wei)0.3%；1—9月??(yue)??，由??(you)沙??(sha)塵??(chen)天??(tian)氣??(qi)導(dǎo)??(dao)致??(zhi)的??(de)平??(ping)均?(jun)超??(chao)標(biāo)?(biao)天??(tian)數(shù)??(shu)比??(bi)例?(li)為??(wei)8.0%??。??　　北??(bei)京??(jing)市??(shi)9月??(yue)優(yōu)??(you)良??(liang)天??(tian)數(shù)??(shu)比??(bi)例??(li)為??(wei)76.7%??，同??(tong)比??(bi)上??(shang)升??(sheng)13.4個??(ge)百??(bai)分??(fen)點??(dian)??，較??(jiao)2019年?(nian)同??(tong)期??(qi)上??(shang)升??(sheng)26.7個??(ge)百??(bai)分??(fen)點?(dian)；未??(wei)出??(chu)現(xiàn)??(xian)重??(zhong)度??(du)及??(ji)以??(yi)上??(shang)污??(wu)染??(ran)天??(tian)??，同??(tong)比??(bi)持??(chi)平??(ping)??，較??(jiao)2019年??(nian)同??(tong)期??(qi)持??(chi)平??(ping)；PM2.5濃??(nong)度??(du)為??(wei)29微??(wei)克??(ke)/立??(li)方??(fang)米??(mi)??，同?(tong)比??(bi)下??(xia)降??(jiang)3.3%??，較??(jiao)2019年??(nian)同??(tong)期?(qi)下??(xia)降??(jiang)19.4%；O3濃??(nong)度??(du)為??(wei)175微??(wei)克??(ke)/立??(li)方??(fang)米??(mi)??，同??(tong)比??(bi)下??(xia)降??(jiang)17.5%??，較?(jiao)2019年??(nian)同??(tong)期??(qi)下??(xia)降??(jiang)17.8%??。??1—9月??(yue)??，優(yōu)??(you)良??(liang)天?(tian)數(shù)??(shu)比??(bi)例??(li)為??(wei)70.3%??，同??(tong)比??(bi)下?(xia)降??(jiang)6.6個??(ge)百??(bai)分??(fen)點?(dian)??，較??(jiao)2019年??(nian)同??(tong)期??(qi)上??(shang)升??(sheng)9.9個?(ge)百??(bai)分??(fen)點??(dian)；重?(zhong)度??(du)及??(ji)以??(yi)上??(shang)污??(wu)染??(ran)天??(tian)數(shù)??(shu)比??(bi)例??(li)為?(wei)2.9%??，同??(tong)比?(bi)上??(shang)升??(sheng)2.2個??(ge)百??(bai)分??(fen)點??(dian)??，較??(jiao)2019年??(nian)同??(tong)期??(qi)上??(shang)升??(sheng)1.8個??(ge)百祝(bai)分??(fen)點??(dian)；PM2.5濃??(nong)度?(du)為??(wei)32微??(wei)克??(ke)/立??(li)方??(fang)米??(mi)??，同??(tong)比??(bi)上??(shang)升??(sheng)14.3%??，較??(jiao)2019下??(xia)降??(jiang)23.8%；O3濃??(nong)度??(du)為??(wei)186微??(wei)克?(ke)/立??(li)方??(fang)米??(mi)??，同??(tong)比??(bi)下??(xia)降??(jiang)1.6%??，較??(jiao)2019年??(nian)同??(tong)期??(qi)下?(xia)降??(jiang)9.7%??。

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