It took 3 years to complete the national pollution

2022-07-31
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What changes have taken place in the 10 years since the national pollution census was successfully completed in 3 years

release date: Source: Office of the State Council on June 10, 2020, the State Council Office held a press conference to invite zhaoyingmin, Vice Minister of the Ministry of ecological environment, Hong Yaxiong, director of the second national pollution source census office of the Ministry of ecological environment, liuwenhua, director of the energy statistics Department of the National Bureau of statistics, and Liaoxi, director of the science, technology and Education Department of the Ministry of agriculture and rural areas, to introduce and answer questions about the bulletin of the second national pollution source census

in this paper, the contents of the bulletin of the second national pollution source census:

previous information -

the Ministry of ecological environment, the National Bureau of statistics, the Ministry of agriculture and rural areas and other 15 units and departments jointly carried out the second national pollution source census from 2017 to 2019. It took three years to complete the task successfully

process -

a comprehensive survey was conducted on 3.5832 million units (excluding mobile sources) and self-employed households with pollution emissions in China. Among them, there are 2477400 industrial sources, 639500 domestic sources, 378800 livestock farms and 84000 centralized pollution control facilities

achievements -

the basic situation of various pollution sources in the country, as well as the quantity, structure and distribution of various pollution sources; Mastering the emission of various pollution sources; The archives of key pollution sources and the pollution source information database have been improved; Trained a number of business backbones with the spirit of environmental protection and Iron Army; It has further improved the environmental awareness of the whole people

1. Guangdong, Zhejiang, Jiangsu, Shandong and Hebei accounted for 52.94% of the total pollution sources in China

2. Five industries, including metal products industry, non-metallic mineral products industry, general equipment manufacturing industry, rubber and plastic products industry, textile, clothing and clothing industry, account for 44.14% of the total industrial pollution sources in China

3. Discharge of water pollutants - chemical oxygen demand 21.4398 million tons, total nitrogen 3.0414 million tons, ammonia nitrogen 963400 tons; The chemical oxygen demand, total nitrogen, ammonia nitrogen and other pollutants in the Yangtze River, Pearl River and Huaihe river basins are relatively large

4. Emission of air pollutants - 17.8522 million tons of oxides, 16.8405 million tons of particulate matter and 6.9632 million tons of sulfur dioxide. The statistical results of volatile organic compounds emissions from some industries and some fields are 10.1745 million tons. Beijing Tianjin Hebei and its surrounding areas, the Yangtze River Delta and the Fen Wei plain are areas where the emission per unit area of air pollution sources in China has a high intensity of undertaking the transformation of scientific and technological achievements of colleges and departments of science and engineering of southern Shandong University

5. Discharge of solid waste - in 2017, the production of general industrial solid waste was 3.868 billion tons, the comprehensive utilization was 2.062 billion tons, the disposal was 943 million tons, and the storage was 931 million tons in that year. The national straw production is 805million tons and the utilization is 585million tons

the output of general solid waste in Shanxi, Inner Mongolia, Hebei, Shandong and Liaoning accounts for 42.4% of that in China; The comprehensive utilization of general industrial solid wastes in Shandong, Hebei, Shanxi, Anhui and Jiangsu provinces accounts for about 40% of the country

6. More than 1800 database tables, more than 15000 data fields and more than 150 million data records have been formed

7. Problem: the emissions of chemical oxygen demand, nitrogen oxides, particulate matter and volatile organic compounds have exceeded 10 million tons; Agricultural sources and domestic sources contribute a lot to the emission of water pollutants, motor vehicles contribute a lot to the emission of nitrogen oxides, and industrial, domestic and motor vehicles contribute a lot to the emission of volatile organic compounds; The environmental protection infrastructure in rural and Western China lags behind that in the whole country or the eastern region

validity and authenticity of data -

do a good job in top-level design, strictly implement quality management, strengthen on-site control over the quality of census data, and strengthen the centralized review at the stage of summarizing census results

in the process of census, the regulations on the quality management of census data covering the whole process of census and the whole population were formulated; Spot check the training of census takers and census instructors through investigation, investigation, quality spot check and other means, and quantitatively track the rectification of problems found in the audit of superior departments; Census institutions at all levels have made full use of small videos and other means to clarify the filling requirements, audit requirements, and the use skills of relevant audit software for census forms, and organized various forms of random inspection, sampling and centralized audit; Experts from all industries and local technical backbones are invited to conduct centralized audit by source and industry

changes compared with 10 years ago -

the standard time point for the first pollution source census is December 31, 2007, and the standard time point for slimming down is December 31, 2017

1. In 2017, the emissions of sulfur dioxide, chemical oxygen demand, nitrogen oxides and other pollutants decreased by 72%, 46% and 34% respectively compared with 2007

2. Compared with 2007, the output of papermaking, steel, cement and other industries increased by 61%, 50% and 71% respectively, and the number of enterprises decreased by 24%, 50% and 37% respectively; The average output of a single enterprise increased by 113%, 202% and 170% respectively

3. Compared with 2007, the chemical oxygen demand of the paper industry decreased by 84%, the sulfur dioxide of the steel industry decreased by 54%, and the nitrogen oxide of the cement industry decreased by 23%

4. The number of facilities for wastewater treatment, desulfurization and dust removal in industrial enterprises is 2.4 times, 3.3 times and 5 times of that in 2007 respectively

5. The proportion of feces and urine in livestock and poultry scale farms has reached 85% and 78% respectively, and the proportion of dry and clean feces in pig scale farms has increased from 55% in 2007 to 87% in 2017

6. The number of urban sewage treatment plants has increased by 5.4 times, the treatment capacity has increased by 1.7 times, the actual sewage treatment capacity has increased by 2.1 times, and the COD removal rate of urban domestic sewage has increased from 28% in 2007 to 67% in 2017

7. The number of domestic waste disposal plants has increased by 86% in the past ten years, of which the number of waste incineration plants has increased by 303%, the incineration capacity has increased by 577%, and the proportion of incineration capacity has increased from 8% ten years ago to 27%

8. The number of hazardous waste centralized utilization and disposal plants has increased by 8.22 times, and the designed disposal capacity has increased by 42.79 million tons/year, which is 10.4 times that of the last census. The amount of centralized disposal and utilization increased by 14.67 million tons, 12.5 times higher than that ten years ago

changes in agricultural pollution emissions -

1, chemical oxygen demand, total nitrogen and total phosphorus emissions decreased by 19%, 48% and 25% respectively

2. The use of chemical fertilizers and pesticides has been growing negatively for three consecutive years. Livestock and poultry enterprises have been promoted by pure planning and market driven in the past. The comprehensive utilization rate of fecal sewage has reached 75%, the comprehensive utilization rate of straw has reached 85%, and the recovery rate of agricultural film has reached 80%

3. China has established 80 leading demonstration areas for green development in rural areas, and 53 counties in 8 provinces of the Yangtze River economic belt have carried out comprehensive treatment of agricultural non-point source pollution

4. Release major leading agricultural green production technologies, and recommend 100 high-quality, safe, cost-effective and eco-friendly agricultural technologies

5. 40000 monitoring points for soil environmental quality of cultivated land, 240 monitoring points for nitrogen and phosphorus loss of cultivated land, 500 monitoring points for agricultural film residues and 280 monitoring points for straw resources were set up

application of census results -

will provide basic support for strengthening the supervision of pollution sources, supervision and assistance in key areas, issuance of pollutant discharge permits, environmental risk screening, major scientific and technological projects, and provide strong support for accurate, scientific and legal pollution control

will provide basic support for the national "ten ● I think the key of micromillr technology lies in the" fourth five year plan "of national economic and social development and ecological environment protection

will provide long-term support for the "fourteenth five year plan" and future ecological environment management

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