Dust control in construction protects health and improves safety and efficiency through appropriate methods adapted to each work environment.
Dust particles: why they matter in construction dust control
Household dust is usually harmless, but in construction and industry it can be dangerous, which is why dust control in construction is key.
The risk posed by dust depends on particle size and material. It is classified as respirable, inhalable and total, according to its impact on the body.
- Respirable: the finest and most dangerous type; it enters the lungs and can cause long-term respiratory problems.
- Inhalable: intermediate in size, it gets trapped in the nose and throat, affecting the upper respiratory tract.
- Total: large, visible particles; they can enter the body but are usually trapped before causing a significant risk.
Implementing dust control in construction protects workers’ health and reduces the risks of the different types of particles.
Fugitive dust and how to manage it in construction
Fugitive dust is dust released at construction sites and in industry that spreads with the wind, which is why it requires dust control in construction.
One example of fugitive dust comes from metal shredders, where dust rises and spreads, creating a risk for workers and the surroundings.
Stopping dust is key to protecting the health of workers and communities. Fog cannons capture it with fine, efficient droplets.
Dust control in construction and how to prevent dust
In construction, getting ahead of dust reduces its generation and improves safety. Below are the most effective methods for dust control in construction:
Preventive methods
- Surfactants: Agents that form a crust over material piles and roads, preventing dust from rising
- Soaking: Use of large amounts of water through hoses, sprinklers or water trucks to saturate specific areas and stop dust from forming.
- Misting cannons: They generate a mist that seals areas without oversaturating them, making them more efficient than conventional soaking.
- Foam: Applied over material piles with spray bars, it keeps dust from rising; its limitation is that the material must not be moved once it has been applied.
- Artificial snow: Works in a similar way to foam, using snow machines to create a layer that prevents dust from dispersing.
Although these methods are effective at preventing dust, it is equally important to implement strategies to remove dust that is already in the air.
Active dust removal
Actively removing dust from the air requires precise and effective techniques. The most notable methods include:
- Atomization: Fog cannons release atomized mist into the air, capturing dust and depositing it on the ground. This is ideal for preventing the dispersion of fugitive dust.
- Fogging: Emits a fine form of water suspended in the air; it captures dust particles, although it does not deposit them on the ground as effectively.
- Dust collection: Systems that extract dust in specific areas and keep it separate from operations, preventing its dispersion.
- Enclosures: Barriers built around the points where dust is generated. Outdoors, windbreak fences are used; indoors, structures are built to confine dust within the work area.
Efficient solutions for construction
- Dust collectors: Systems installed in areas where large amounts of dust are generated, which channel it through hoods and ducts to a collector. They require periodic maintenance and emptying to prevent fugitive dust from being released.
- Fog cannons: A cost-effective and efficient alternative that generates fine water droplets to capture dust, controlling its dispersion at a lower cost than traditional collection systems.
Implementing a comprehensive plan that combines prevention and active dust removal is essential to protect workers’ health, keep the environment safe and ensure effective and sustainable dust control in construction.
Dust control in construction combines prevention and action. Use methods such as water, foam and fog cannons to reduce dust and protect health.
