ASMA-USA is a non-profit organization dedicated to providing the public with science-based information on asphalt protection products that meet the U.S. Geological Survey (USGS) recommended guideline for polycyclic aromatic hydrocarbons (PAHs)—specifically, levels not exceeding 1,000 ppm.

To ensure transparency and objectivity, all research we reference comes exclusively from:

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• National government research facilities

• Independent research centers

• Peer-reviewed studies from non-biased institutions

 

Our Commitment to Neutrality:

• ASMA-USA does not endorse any specific companies, vendors, contractors, or products.

• We do not fund or rely on research conducted by paid scientists affiliated with our organization.

• Our sole mission is to provide fact-based, unbiased information to support safe and sustainable asphalt practices.

 

Below, you’ll find a compilation of peer-reviewed studies and reports that align with these principles. We welcome any questions or opportunities to collaborate in advancing these standards.