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Revised Soil Reference Value for Benzo(a)pyrene Equivalent!

Carcinogenic polycyclic aromatic hydrocarbons (PAHs) are common in historical urban fill due to a variety of sources, including incomplete combustion of organic matter, coal tar, asphalt, and creosote. The MPCA has revised the benzo[a]pyrene (BaP) soil reference value (SRV) for commercial/industrial land use to be 23 milligrams per kilogram (mg/kg). No change has been made to the BaP SRV for residential/recreational land use, which remains at 2 mg/kg. For additional information, please refer to the following link: Revised benzo[a]pyrene (B[a]P) soil reference values (SRVs). 

The mission of the MPCA is to protect and improve the environment and human health.

St. Paul • Brainerd • Detroit Lakes • Duluth • Mankato • Marshall • Rochester

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