What document does the 8 100% dust control measures in Zhengzhou come from?

Zhengban [2019] No. 9 on the issuance of the "Zhengzhou City 2019 Air Pollution Prevention and Control Implementation Plan"

100% enclosure around the construction site: Before the construction site starts, it should be set up as required For a closed enclosure, the main road should be no less than 2.5 meters, and the secondary roads should be no less than 2 meters. A spill-proof seat of no less than 30 centimeters should be installed. Sprinkler facilities should be installed above the enclosure with an interval of no less than 4 meters.

2. 100% coverage of all types of materials: after the dust-prone materials on site are used, they should be covered with geotextiles (weight not less than 150 grams per square meter) in a timely manner. Exposed areas of loess should be covered with geotextiles in a timely manner.

3. Earth excavation and demolition operations are 100% wet operations: When carrying out dust-prone operations, dust reduction facilities such as fog cannons, sprinklers, enclosure sprays, and ice mist trays must be turned on. Use wet methods to ensure dust suppression effect.

4. 100% cleaning of exiting vehicles: Before leaving the construction site, all transport vehicles must repeatedly pass through water and then rinse the tires to ensure they are clean. The carriages must be sealed and it is strictly prohibited to bring mud on the road.

5. The main areas and roads of the construction site should be 100% hardened: the construction site should be kept clean and tidy. Hardening measures must be taken at the gate of the site, main roads, and processing areas, and must meet vehicle driving requirements. . The ground on site should be flat and solid, and no dirt or dust should be generated.

6. 100% closed transportation of muck vehicles: The transportation of muck, concrete and garbage must be entrusted to a transport unit with corresponding transportation qualifications. The use of "black muck trucks" is strictly prohibited. Adopt closed transportation, and the vehicle body should be kept clean and tidy to prevent construction materials, garbage and engineering slag from flying, spilling, and overflowing. Throwing or dumping is strictly prohibited to ensure that urban roads and the environment are not polluted during transportation.

7. 100% installation of online video surveillance at construction sites: housing construction projects with a single building area of ??more than 3,000 square meters, or a group building area of ??5,000 square meters or more, and a total project investment of more than 10 million yuan Municipal projects, municipal linear projects with a length of more than 200 meters and construction sites involving earth and stone should be installed with remote video monitoring, PM10 monitoring equipment and Zhengzhou construction site information publicity boards (LED screens).

8. Non-road mobile machinery and the oil used in the construction site must meet the standards: Non-road mobile machinery and the oil used in the construction site must meet the standards.