Q: How to control dust at construction sites?

Dust control measures at construction sites

1. Hard walls or barriers of no less than 2.5 meters must be set up around construction sites in urban areas, towns and main roads (the use of single fences is prohibited) layer of color steel plate), a fence with a height of not less than 1.8 meters can be set up around the construction site in general road sections, and open operations are strictly prohibited. An anti-overflow seat should be installed at the bottom of the enclosure. There should be no gaps between the enclosures and between the enclosure and the anti-overflow seat. The dust on the enclosure should be cleaned regularly to ensure that the environment around the construction site is clean.

2. Materials that are prone to dust pollution should be stored in an airtight manner or covered in a timely manner when stacked in the construction site; the outside of the engineering scaffolding must be closed with a dense-mesh safety net. For construction projects within the built-up area of ??the city, it is strictly prohibited to mix concrete at the construction site (except for temporary worker mixing and special types of concrete that cannot be produced by ready-mixed concrete manufacturers).

3. Within 30 days after the completion of the project, the construction unit shall level the construction site and remove accumulated soil and piles of materials.

4. When strong winds exceed level 5, construction operations that are prone to dust pollution, such as earthwork and demolition construction, are prohibited, and dust prevention measures should be taken for stacked objects.

5. The ground at the entrance to all construction sites must be hardened, and a vehicle washing station and supporting drainage and mud sedimentation facilities must be set up. Before leaving the construction site, the wheels and body of the vehicle should be washed clean, and no mud should be allowed. Hit the road.

6. Spoils, discarded materials and other construction waste at the construction site should be cleared away in time. If they are piled on the construction site for more than 48 hours, they should be stored in an airtight manner or covered in time to prevent wind erosion, dust and Water erosion migration.

7. The main road entrances and exits at the construction site should be paved with concrete pavement with a thickness of not less than 20 cm. During the earth excavation stage, the vehicle roads at the construction site should be simply hardened, supplemented by dust reduction measures such as sprinkling water.

8. During construction, when materials, slag or waste with escaping dust is transported from the upper floor of the building to the ground or the next floor, it should be transported in a closed manner and should not be thrown in the air.

9. The general contractor responsibility system shall be implemented for dust pollution control at construction sites. If general contracting is not implemented, the construction unit shall bear overall responsibility. For all building construction, the construction unit designates a dedicated person to be responsible for the prevention and control of dust pollution at the construction site. The project manager is the first person responsible for dust pollution control. Environmental protection supervision signs must be set up at the entrances and exits of construction sites, indicating the project name, construction unit, construction unit, name and contact number of the on-site supervisor for dust pollution prevention and control, project duration, environmental protection measures, reporting hotline, etc.

10. Construction waste must be erected in a closed temporary special garbage channel. It is strictly prohibited to throw it at high altitude at will. Construction waste should be cleared and transported in a timely manner, and an appropriate amount of water should be sprinkled to reduce dust.

11. Fine bulk materials such as cement should be stored indoors or in a closed area. Covering measures should be taken during unloading to reduce dust.

12. Dust removal devices must be installed on on-site mixing equipment.

13. Temporary canteens and boiling water rooms use vaporized oil as fuel to avoid smoke pollution.

14. Implement the "Three Guarantees" in front of the door to ensure that all materials on site are stacked in an orderly manner and that the on-site drainage ditches are in good condition.

15. The place where construction workers operate and the surroundings must be clean and tidy, so that their feet are clear when working and the area is clean after work.

16. Reinforced steel bars are divided into types and specifications and are stacked on shelves. Plates are arranged side by side to indicate the specifications. The formed steel bars must indicate the use part.

17. Construction machines and tools must be neatly placed, the machine body kept clean, the slogans numbered clearly, the safety devices sensitive and effective, and the inside and outside of the machine shed clean.

18. Covering and protective measures should be taken when transporting various materials, garbage, etc. to prevent mud and other materials from being taken out of the site with vehicles and affecting the city appearance and environmental sanitation.