2021年生态环境质量持续改善

Liu Youbin, a spokesperson from the Ministry of Ecology and Environment, said at a press conference on Monday that China fulfilled all eight binding targets covering emissions of CO2 and surface water quality.

生态环境部新闻发言人刘友宾在1月24日召开的例行新闻发布会上表示，过去一年，生态环境领域二氧化碳排放指标、全国地表水优良水质等8项约束性指标顺利完成。

The country's progress in cutting CO2 emissions per unit of GDP met the 14th Five-Year Plan period (2021-2025) requirements. The emission reduction of four major pollutants, including oxynitride, also reached annual goals.
单位GDP二氧化碳排放指标达到"十四五"序时进度要求；氮氧化物等4项主要污染物总量减排指标顺利完成年度目标。

The share of days with good air quality in 2021 rose to 87.5%, up 0.5 percentage points from a year earlier. The PM2.5 density went down 9.1%, year-on-year, to 30 micrograms per cubic meter.
2021年，全国地级及以上城市优良天数比率为87.5%，同比上升0.5个百分点；PM2.5浓度为30微克/立方米，同比下降9.1%。

Beijing's PM2.5 density declined from 89.5 micrograms per cubic meter in 2013 to 33 micrograms in 2021, and its days of significant air pollution came down from 58 to eight.
从2013年到2021年，北京市PM2.5浓度从89.5微克/立方米下降到33微克/立方米，重污染天数从58天下降到8天。

The proportion of lakes and rivers graded Class I to III reached 84.9%.
全国地表水优良水质断面比例为84.9%。