2023年第二季度361个城市中（含省辖县），水环境指数等级优良的城市共231个，占64.0%，等级为一般的城市98个，占27.1%，较差和差的城市共32个，占8.9%。和2022年同期相比，2023年第二季度水质略好，和2023年第一季度相比，2023年第二季度水质有所下降。

2023年第一季度361个城市中（含省辖县），水环境指数等级优良的城市共268个，占74.2%，等级为一般的城市78个，占21.6%，较差和差的城市共15个，占4.2%。

The 2022 Garbage Sorting Index evaluation covered a total of 100 cities. The average score is only 15.07, with more than half of the cities scoring below 10, indicating that garbage sorting is still at a low level. The evaluation shows that the three key measures required by the 14th Five-Year Period Urban Domestic Waste Separation and Disposal Facilities Development Plan, namely "removing bins and building stations, regular drop-off, and supervision and guidance", have not yet been effectively implemented in most cities. There remains a lack of capability in food waste treatment yet at the same time, there is more capacity than the amount of food waste treatable. Garbage incineration capacity has shown signs of surplus in many regions.

In the fourth quarter of 2022, among 361 cities (including provincial counties), there were 267 cities with excellent CWEI grades, accounting for 73.9%, 78 cities with average grades, accounting for 21.6%, and 16 cities with poor and poor grades, accounting for 4.5%.

In the third quarter of 2022, among 361 cities (including the provincial counties), there were 226 cities with excellent CWEI rating, accounting for 62.6%, 90 cities with average rating, accounting for 24.9%, and 45 cities with poor and poor rating, accounting for 12.5%.

The evaluation results show that among the 77 participating cities, Suzhou, Shanghai, Fuzhou, Tongling, Jiaxing, Shenzhen, Nanjing, Ningbo, Qingdao and Xuzhou are in the top 10; Tangshan, Xuchang, Luohe, Shijiazhuang, Huaian, Xining, Suqian, Quanzhou, Sanmenxia and Zhenjiang are in the bottom 10. The new cities included in the evaluation performed poorly overall, showing an obvious long-tail effect, resulting in 77 cities having a lower average score in the third quarter than the average score of 39 cities in the second quarter.

In the second quarter of 2022, among 361 cities (including provincial counties), there were 234 cities with excellent CWEI scores, accounting for 64.8%, 88 cities with average grades, accounting for 24.4%, and 39 cities with poor and poor grades, accounting for 10.8%, with a significant year-on-year improvement and a decline from the previous year.