Ambient Air Sampling

Ambient air sampling reveals a baseline of fibers present on a daily basis. This type of sampling is selected to ensure exposures are below regulated levels and that any disturbed asbestos is not causing a health risk.

Ongoing Air Monitoring

Ongoing air monitoring is performed alongside the abatement process and ensures no loose fibers leave the containment.

Post Abatement Air Sampling/Clearance

This sampling is conducted after asbestos has been removed. These samples, taken in the area of removal, ensure that the building is safe to reoccupy and regulations are met. 

Global conducts all air monitoring following the NIOSH 7400 method. 

Air Monitoring

In addition to full asbestos and hazardous material inspections, conducted by state certified inspectors, Global also performs air monitoring services.

Allowable fiber levels differ between facilities as defined by regulatory agencies and an Air Monitoring test conducted by a Global professional ensures all work is compliant with rules and regulations. An air monitoring test is the first step in protecting employees or building occupants from harmful airborne asbestos fibers.

The Occupational Health and Safety Administration (OSHA) describes asbestos air monitoring as drawing a known volume of air through a 25-mm diameter cassette containing a mixed-cellulose ester filter. The sampling time and rate are chosen based on need to give a fiber density of 100 to 1,300 fibers/mm(2) on the filter.

Asbestos air monitoring microscope

Cassettes can be analyzed on site for immediate readings.