What Construction Workers Should Know About Asphalt Exposure Over a half-million workers are exposed to fumes from asphalt, a petroleum product used extensively in road paving, roofing, siding, and concrete work. Health effects from exposure to asphalt fumes include headache, skin rash, sensitization, fatigue, reduced appetite, throat and eye irritation, cough, and skin cancer according to the American Board of Industrial Hygiene. This board wants managers, safety experts, and construction site operators to take efforts to address exposure to asphalt fume exposure.