According to published data, haze pollution in China is grim and ozone pollution is not optimistic. Although the country has made great efforts to control PM2.5, only 24.9% of the cities in 2016 reached the standard and 254 cities exceeded the standard. 338 heavy pollution in cities 2464 days, the state developed a target of action plan for air pollution prevention and control, of which, Beijing PM2.5 in 2017 to reach 60ug / m3; by 2020, good air quality rate of> 80% , PM2.5 decreased by 18% over 2015; the number of severe pollution days decreased by 25%.
With the continuous development of the national economy, the state has put forward higher requirements on the quality of the environment.The overall requirements put forward by the national "Thirteenth Five-Year Plan" for VOCs Pollution Prevention and Control show that the prevention and control of VOCs pollution should be centered on the improvement of ambient air quality, Key industries as the main control object, to reduce the reactive VOCs material as the focal point to promote VOCs and NOx synergistic emission reduction, and strengthen the control of new pollutant emissions, the implementation of fixed sources of pollutant discharge permit management.
During the 13th Five-Year Plan period, key industries such as chemical industry, packaging and printing, industrial coating and other key industries implemented key projects and peak-shifting production to control key pollutants. According to the requirements of industrial coating / printing VOCs prevention and control, The chemical industry such as ink, adhesive, dye, chemical auxiliary should intensify the control of VOCs, LDAR should be gradually carried out in such industries as pharmaceutical, pesticide, coking, paint, ink, adhesive and dye etc. It is required that before the end of 2019, the paint manufacturer VOCs treatment reached 2,000, ink production enterprises 340, adhesive production enterprises 1500; by the end of 2020, dye production of VOCs treatment reached 300.
In addition, Guangdong Province is required to increase the emission reduction of the key active components of VOCs such as aromatic hydrocarbons, alkenes, alkynes, aldehydes and ketones. The coatings industry should focus on the promotion of water-based coatings, powder coatings, high-solid coating materials, radiation curing Paint and other green products; Jiangsu Province requires the full use of low VOCs content of water-based paint, adhesive in the containers, vehicles, machinery and equipment, wood-based panels, furniture, shipbuilding and other industries by the end of 2017; The total amount of VOCs emission in the whole province dropped by more than 20% compared with that in 2015, and the emission of key VOCs was more than 255,000 tons. In Shanghai, it is required that by 2020, the production of solvent-based coatings and inks should be halved than the total amount in 2015.