The network is designed and equipped with instrumentation to provide measurements of ambient concentrations for seven federally- designated “ criteria” air pollutants - air pollutants for which the U.S. (See attached “Air Monitoring Stations” map). Copies of the air monitoring results are available for your review in the Office of the Building.Īir Monitoring. The Air Monitoring section is responsible for operation and maintenance of the 30 air sampling sites comprising the citywide air monitoring network. All TEM tests taken to date have resulted in findings of either no asbestos structures detected or structures detected concurrently with the presence of structures in the environment outside of the Building. Transmission electron microscopy (" TEM") today is the most sophisticated asbestos- specific testing method currently available. Our consultants have uniformly reported fiber concentrations lower than the level which would suggest a need for remedial action. measures all types of fibers ( for example, carpet fibers, animal hair, asbestos). Phase contract microscopy, which has historically been employed to supply the basis for airborne asbestos exposure risk assessments. These tests were conducted using two methods: Phase contract microscopy ( NIOSH Method 7400) and transmission electron microscopy. Air Monitoring. We have engaged qualified consultants to conduct air monitoring in the Building.
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