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PAH survey: identify tar in older materials
PAHs (polycyclic aromatic hydrocarbons) are substances found particularly in coal tar. Coal tar was used for decades in certain construction products: waterproofing, coverings and adhesives. Some PAHs are carcinogenic.
Not all black or bituminous products contain tar: petroleum bitumen generally contains far fewer PAHs than coal tar. Only analysis can distinguish them. Before building work, a PAH survey identifies which materials contain PAHs and how to dispose of them.
From suspicion to results
A material’s appearance may raise suspicion but cannot establish a conclusion. We take representative samples for laboratory analysis. The result states the PAH content, which determines how the waste must be treated and disposed of.
Editorial draft pending approval. Unconfirmed evidence, conditions and passages remain reserved for review.
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