Air Monitoring & Dop Testing
Air Monitoring For Abatement Projects-
WorkSafeBC regulates the removal of asbestos and other hazardous materials, and in many cases, the abatement work must be accompanied by air monitoring. Tusk EH&S conducts air monitoring following the NIOSH 7400 Method.
Air samples are taken within the work area, near the worker decontamination area or “clean room,” and outside the enclosed work area. These samples will ensure that the containment set up by the contractor is appropriately containing the hazardous materials.
Once samples are collected, they are analyzed using a positive phase-contrast microscope. The results will be posted at the worksite within 24 hours of sample collection. If any anomalies are detected in the samples, Tusk EH&S will collaborate with the abatement contractor to ensure that all work meets or exceeds WorkSafeBC guidelines.
Tusk EHS is available for air monitoring and air clearance during regular business hours as well as weekends and after-hours.
DOP Testing
DOP testing involves using a photometer and aerosol generator to determine the integrity of the HEPA (High-Efficiency Particulate Air) filter. The aerosol generator creates a fine particulate that is run through the filter, and the photometer will detect if any of the particles make it through the HEPA filter. A filter should meet a rating of 99.97% to verify that the HEPA filter has no leaks or damage.
HEPA filtered equipment (such as negative air units) must be tested before starting high-risk abatement projects, after being moved to a new project, and at least annually. HEPA filtered equipment is also tested whenever maintenance is performed, such as changing or repairing HEPA filters, working on motors, or any other maintenance that will affect the seal or integrity of the unit.
Tusk EHS is available for DOP Testing during regular business hours as well as weekends and after-hours.