Core Insights - The overall air quality and surface water quality in China have shown continuous improvement in the first half of this year, with 83.8% of days classified as good air quality, a 1 percentage point increase year-on-year [1] - The proportion of surface water quality classified as good (Class I to III) stands at 89% across 3,641 national monitoring sections [1] Air Quality Summary - In key regions, the average PM2.5 concentration in the Beijing-Tianjin-Hebei region's "2+36" cities is 40.8 micrograms per cubic meter, a decrease of 15.4% year-on-year [1] - The average PM2.5 concentration in the Yangtze River Delta's 31 cities is 37.4 micrograms per cubic meter, down 4.3% year-on-year [1] - The average PM2.5 concentration in the Fenwei Plain's 13 cities is 38.3 micrograms per cubic meter, a reduction of 13.7% year-on-year [1] Surface Water Quality Summary - The proportion of good water quality (Class I to III) in major river basins, including the Yangtze, Yellow, Pearl, Songhua, Huai, Hai, and Liao rivers, is 90.4%, an increase of 0.1 percentage points year-on-year [1] - The proportion of sections classified as poor quality (Class V and below) is 0.8%, an increase of 0.3 percentage points year-on-year [1] - Among 209 monitored key lakes and reservoirs, 78% are classified as good quality (Class I to III), a decrease of 1.5 percentage points year-on-year, while 3.8% are classified as poor quality, a decrease of 0.5 percentage points year-on-year [1]

智通财经7月28日电，生态环境部今天（28日）上午举行例行新闻发布会。会上介绍，今年上半年，我 国空气和地表水环境质量总体持续改善。空气质量方面，上半年，全国339个地级及以上城市平均空气 质量优良天数比例为83.8%，同比上升1个百分点，全国PM2.5平均浓度为32.1微克/立方米，同比下降 2.4%。 生态环境部：上半年我国空气和地表水环境质量总体改善 ...

云南省昭通市绥江县金沙江畔，水清、岸绿、景美。 曾三东摄（人民图片） 本报电（泽 成）今年一季度，中国环境空气质量和地表水环境质量总体持续改善。 在环境空气质量方面，全国339个地级及以上城市平均空气质量优良天数比例为84.8%，同比上升1.2个 百分点；平均重度及以上污染天数比例为1.8%，同比下降0.6个百分点。全国PM2.5平均浓度为41.3微 克/立方米，同比下降4.8%；PM10平均浓度为65微克/立方米，同比下降3.0%。 从重点区域来看，京津冀及周边地区、长三角地区、汾渭平原PM2.5平均浓度分别为51.4微克/立方米、 48.2微克/立方米、50.2微克/立方米，同比均有所下降。 在地表水环境质量方面，3641个国家地表水考核断面中，水质优良（Ⅰ-Ⅲ类）断面比例为91.0%，同比 上升1.1个百分点；劣Ⅴ类断面比例为0.7%，同比持平。其中，长江、黄河等七大流域及西北诸河、西 南诸河和浙闽片河流水质优良（Ⅰ-Ⅲ类）断面比例为92.1%，同比上升0.6个百分点。监测的196个重点 湖（库）中，水质优良（Ⅰ-Ⅲ类）湖（库）个数占比82.1%，同比持平；劣Ⅴ类水质湖（库）个数占比 3.6%，同比下降 ...