State Limits may be lower.Benzo[g,h,i]peryleneBenzo[g,h,i]perylene is a polycyclic aromatic hydrocarbon (PAH) in crude oil and is released from combustion of fossil fuels and from industries including petroleum refining, coal tar distillation, wastewater treatment and waste incineration.0.03 ppb0.1 ppbNoLegal at any levelThis is the Federal Limit.