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上月空气质量优良天超九成

2017-08-18 06:26:29   中国青年网

17日,武汉结束多日阴雨天,雨过天晴白云浪漫,鸟瞰宝岛公园白云碧湖显得格外清丽 记者詹松 摄

本报讯(记者张晟 通讯员于海涛)长江日报记者17日从市空气质量办获悉,7月全市空气质量优良天数为28天(其中优为15天、良为13天),空气质量优良率超90%,蓝天白云成为日常生活中最常见的景象。

今年1-7月,全市空气质量优良天数为150天,优良率为70.8%,优良天数比2016年同期增加13天。全市16个区(功能区)空气质量优良率同比下降的为黄陂区、武汉化工区、江夏区、东湖高新区;空气质量优良率同比上升幅度较大的5个区依次分别为东湖生态旅游风景区、洪山区、东西湖区、蔡甸区、青山区。

1-7月,全市PM10(可吸入颗粒物)平均浓度为91微克/立方米,较去年同期下降4.2%,PM10平均浓度较高的5个区依次分别为武汉化工区、东湖高新区、硚口区、青山区、东西湖区与江汉区(并列)。7月全市PM10平均浓度为57微克/立方米,与去年同期持平。

1-7月,全市PM2.5(细颗粒物)平均浓度为53微克/立方米,较去年同期下降11.7% ,PM2.5平均浓度较高的5个区依次分别为青山区、江夏区、武汉化工区、东湖高新区、硚口区(后3个区并列)。7月,全市PM2.5平均浓度为23微克/立方米,较去年同期下降8.0%。

2017年1-7月细颗粒物(PM2.5)

平均浓度及变化(微克/立方米)

2017年1-7月可吸入颗粒物(PM10)

平均浓度及变化(微克/立方米)

2017年1-7月

各区改善空气质量考核排名结果

与2016年

同期相比增减(%)

2017年

1-7月浓度

与2016年

同期相比增减(%)

2017年

1-7月浓度

各 区

排名

91 -4.2 53 -11.7

城区平均

47

51

51

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