According to the Ecological Environment Bureau of Dongguan City on the 11th, in the first four months of this year, the water quality of inland rivers in Dongguan City has been improving year by year, and the proportion of Class V water quality elimination has remained stable at over 80%. A total of 12 towns and streets have achieved 100% degradation in stages. Green and beautiful ecological environment in Humen Town, Dongguan City. According to the "2023 Ecological Environment Status Bulletin of Dongguan City" recently released by the bureau, the urban air quality in Dongguan City improved year-on-year in 2023, with a proportion of 88.8% of excellent days and an increase of 8.8 percentage points in the proportion of days meeting standards. The water quality of centralized drinking water sources in cities is excellent, and the noise level in urban areas is at level three (average); The ecological environment is in good condition. It is reported that since the beginning of this year, Dongguan City has continuously improved its ecological environment quality to high standards. In the first four months, the proportion of water quality in seven national examination sections in Dongguan City was 85.7%, and the water quality of centralized drinking water sources in four cities reached or was better than Class III water quality. The water quality of inland rivers has been improving year by year, and the proportion of eliminating poor Class V water quality has remained stable at over 80%. A total of 12 towns and streets have achieved 100% degradation in stages; 24 key rivers in the built-up area have stable elimination of black and odor, and 53 rural black and odor water bodies have basically eliminated black and odor. In terms of air pollution prevention and control, Dongguan ranks 18th in the comprehensive air quality index and 7th in PM2.5 concentration among the 168 key cities in China, both of which are among the top 20. Among the main atmospheric pollutants, SO2, NO2, and CO are stable and meet the national air quality first level standards, while PM2.5 and PM10 are stable and meet the second level standards, continuously achieving the second stage goals of the World Health Organization. In terms of "zero waste city" construction, the comprehensive utilization of general industrial solid waste in Dongguan city reaches 17600 tons per day; The city's construction waste resource utilization capacity reaches 30 million tons per year, with a comprehensive utilization capacity of about 83000 tons per day. The construction waste resource utilization rate reaches 46%, and the total daily capacity of household waste incineration treatment reaches 147500 tons. It is the first in Guangdong Province to achieve full incineration and zero burial of newly added household waste; The collection and disposal capacity of hazardous waste is 3400 tons per day, and the safety disposal rate of medical waste is 100%. Environmental risks are effectively prevented and controlled throughout the entire process. (Lai Xin She)