Environmental

Asbestos is most commonly found in Pennsylvania homes built before which year?

A1950
B1960
C1978
D1980✓ Correct

Explanation

Asbestos was widely used in building materials — insulation, floor tiles, ceiling tiles, pipe insulation, and roofing shingles — until its health hazards became well-established and regulations took effect around 1980. Homes built before 1980 are most likely to contain asbestos-containing materials (ACM).

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