NATIONAL ASBESTOS EXPOSURE REVIEW An examination of sites receiving asbestos-contaminated Vermiculite ore from Libby, Montana

The Agency for Toxic Substances and Disease Registry (ATSDR) is a federal public health agency under the Department of Health and Human Services that addresses toxic substances in the environment and how they affect people.

ATSDR is reviewing locations around the country that received shipments of vermiculite from a mining operation in Libby, Montana. The contaminated vermiculite was shipped as a commercial product to approximately 244 locations around the United States for processing and packaging. ATSDR will initially be reviewing 30 of the locations.

The review is being done to determine whether the people could have been, or are being, exposed to the asbestos contained in the vermiculite ore.