Why do underground projects also need air purification equipment?

As an important part of modern buildings and infrastructure, underground projects need to pay special attention to air quality issues during their construction and operation. Due to the closed underground environment, heavy humidity, poor air circulation, and easy accumulation of harmful gases, especially radon. Therefore, underground projects also need to be equipped with air purification equipment to ensure the health and safety of the working environment.

Characteristics of underground engineering environment

Underground projects, especially facilities such as subways, underground tunnels, and underground parking lots, are usually located deep in the soil and rock formations, and the ventilation conditions are relatively poor. Pollutants in the air include harmful gases, dust, bacteria, etc., especially radon. Radon is a colorless, odorless natural radioactive gas, which is mainly derived from the decay of uranium and thorium in the rock and soil layers. Due to the closed nature of the underground environment, once radon enters the underground space, it is often difficult to dissipate, posing a potential threat to human health.

Hazards of radon

Radon is listed as a carcinogen by the World Health Organization and the U.S. Environmental Protection Agency. Long-term exposure to high concentrations of radon may cause lung cancer. The main way for radon to enter the human body is through breathing. After entering the lungs, it will decay, release radiation, and cause damage to lung tissue. Especially for workers who have been engaged in underground work for a long time, the risk of radon gas exposure is greater. Therefore, the control of air quality in underground projects is particularly important.

Necessity of air purification equipment

Since radon exists naturally and cannot be avoided, the air purification equipment of underground projects needs to have effective radon gas filtration and removal functions. Modern air purification technology can effectively reduce the concentration of radon gas and improve air quality through various means. These devices usually use the following technologies:

Ventilation system: Enhancing air circulation in underground space is the basis for reducing radon gas concentration. By adding underground ventilation equipment, radon gas can be discharged from the building and its concentration in the enclosed space can be reduced.

Radon gas absorber: Some air purification equipment uses adsorbent materials (such as activated carbon) to specifically absorb radon gas in the air to prevent it from continuing to spread. These absorbers can be used in conjunction with ventilation systems to improve the radon gas removal effect.

Air purifier: In addition to removing radon, some air purifiers also have the function of filtering other pollutants in the air, such as particulate matter, bacteria, volatile organic compounds, etc. By combining a variety of air purification technologies, the air quality of underground space can be comprehensively improved.

Automated monitoring system: Use sensors to monitor the concentration of radon in the air in real time. When the radon concentration exceeds the safe value, the system will automatically start ventilation or purification equipment, thereby realizing automatic control and ensuring the safety of the underground engineering environment.

Air purification equipment for underground projects is crucial to ensure the health and safety of workers. Especially in the prevention and control of radon, a potential threat, timely and effective air purification technology can effectively reduce the harm of radon to the human body. With the increasing number of underground engineering construction, related air purification technologies and equipment will become more and more an indispensable part of ensuring the safe operation of underground projects. Therefore, strengthening air quality management and equipping with appropriate air purification equipment have become the key points that cannot be ignored in underground projects. Dongguan Lianda Environmental Technology Co., Ltd. has developed a series of radon reduction products. Its radon reduction air purifier can quickly reduce the radon content in the air, especially in confined spaces and places with poor ventilation. Using radon reduction air purifiers can effectively protect people's health.