air monitoringAn air monitoring regime should be considered to ensure that airborne contaminants such as dusts, fumes or vapours that arise from working with hazardous materials do not exceed the allowable exposure limits set by national and international bodies.

It is useful where materials containing silica are being cut, sawn or drilled into; to detect toxic metals such as those arising from welding fumes; or where harmful solvents are used in certain activities, such as waterproofing.

Diesel fumes are another potential hazard that should be adequately controlled and air monitoring is one way of establishing baselines of exposure to workers. Where refurbishment or demolition of  buildings containing asbestos is required, air monitoring is mandatory.