The average PM2.5 concentration in Suzhou was 28 micrograms/cubic meter in urban areas, with a decrease of 3.4%. 98.8% of the water qualificationmet the standard of Excellent III in the evaluation at national and provincial level, with an increase of 1.3% compared to the previous year. The main stream of the Suzhou section of the YangtzeRiver maintains a stable water quality of Class II, and 100% of the main tributary sections were rated as Class III. Taihu Lake has achieved a safe summer for 18 consecutive years.
In total, 240 rivers and lakes in Suzhou are successfully recognized by the Happy Rivers and Lakes Project. Kuncheng Lake is included as a pilot lake for the national Happy Rivers and Lakes
Project.
Four urban domestic sewage treatment plants of the city have been included in the construction of national green and low-carbon benchmark plants.
Three national green industrial parks were added, bring the total to 12. A total of 95 national green factories were added, bringing the total to 188. The city has also achieved a full coverage for the "Three Fixed Items and One Superintendent" community in terms of domestic waste classification. And the harmless treatment rate of domestic waste has reached 100% in both urban and rural areas.
Xiangcheng District was selected as a National Ecological Civilisation Construction Demonstration Zone.
Suzhou won the title of "International Wetland City".
