Air Quality Updates
Each demolition package contains two (2) mobile EPA air quality testing towers. These towers will be relocated daily depending on wind speed and weather conditions in order to best protect the surrounding properties from any changes in air quality. The towers will continuously collect air quality data and randomly record levels at three times during each day. If at any point these recordings reveal readings below EPA standards, demolition will be halted in that package until corrective measures can be taken.
The air monitors record debris particles in milligrams per cubic meter (mg/m³). The air is measured upwind (outside air entering site) and downwind (demolition area air exiting site) and is compared. The difference between downwind and upwind air is the number we are concerned with. It shows how many particles are added to the air during the demolition process. The action level, or limit, for this difference is 0.3 mg/m³. If that level is reached, demolition will be shut down until corrective measures can be taken.