Benzo(a)pyrene is one of a group of compounds called polycyclic aromatic hydrocarbons. They are not produced or used commercially but are very commonly found since they are formed as a result of incomplete combustion of organic materials. The major source of benzo(a)pyrene in drinking water is leaching from linings of water storage tanks and distribution lines.
Some people who drink water containing benzo(a)pyrene well in excess of the maximum contaminant level (MCL) for many years may experience reproductive difficulties and may have an increased risk of cancer.
MCL ADVISORY - ACTION IS HIGHLY RECOMMENDED
Benzo(a)pyrene levels were detected in your water sample to exceed the maximum contaminant level (MCL).
ACTION IS OPTIONAL
Benzo(a)pyrene levels were detected in your water sample but do not exceed the maximum contaminant level.
- USEPA - Water: Basic Information about Regulated Drinking Water Contaminants - Basic Information about Benzo(a)pyrene in Drinking Water
- ATSDR - Toxic Substances Portal - Polycyclic Aromatic Hydrocarbons (PAHs)
- Ohio Department of Health - Private Water Systems Program - Water Quality - Organic Contaminants
- ATSDR ToxFAQs Fact Sheet - Polycyclic Aromatic Hydrocarbons (PAHs)