Naturally Occurring Asbestos
Asbestos is a term used for several types of naturally-occurring fibrous minerals found in many parts of California. When rock containing asbestos is broken or crushed, asbestos fibers may be released and become airborne. Asbestos emissions present a significant risk to human health on a statewide and local level. The California Air Resources Board adopted two Airborne Toxic Control Measures to address some of the health concerns associated with the release of naturally-occurring asbestos.
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