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NIOSH Testimony on Asbestos Before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development Committee on Environment and Public Works by Richard A. Lemen, April 26, 1990.

PB91132852

Publication Date	1990
Page Count	8
Abstract	The testimony concerns the position of NIOSH regarding the science and health effects caused by exposure to asbestos (1332214). Based on studies of workers exposed to asbestos before general governmental regulations were in place, it is known that asbestos causes specific diseases such as asbestosis and mesothelioma. Asbestos is one of the leading causes of lung cancer in nonsmokers. Asbestos exposure for smokers increases the risk of lung cancer approximately 55 times. Asbestos is also associated with an increased risk of gastrointestinal and other cancers. Chrysotile (12001295) is much more chemically and biologically reactive than amphibole fibers. There is no compelling evidence at this time to justify different public health policies for different asbestos fiber types. NIOSH reaffirmed its position that no distinction be made between the types of asbestos fibers with regard to regulatory purposes. The scientific evidence suggests that fiber shape and size are the most critical factors in the pathogenicity of the material.
Keywords	Asbestos Occupational diseases Industrial medicine Exposure Asbestosis Pulmonary neoplasms Occupational safety and health Toxic substances Gastrointestinal neoplasms Mesothelioma CAS 12001295 CAS 1332214 Testimony
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 41I - Job Environment 44G - Environmental & Occupational Factors 68G - Environmental Health & Safety
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	See also PB90-179128.
Document Type	Technical Report
NTIS Issue Number	199107

NIOSH Testimony on Asbestos Before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development Committee on Environment and Public Works by Richard A. Lemen, April 26, 1990.

NIOSH Testimony on Asbestos Before the Subcommittee on Toxic Substances, Environmental Oversight, Research and Development Committee on Environment and Public Works by Richard A. Lemen, April 26, 1990.
PB91132852

Publication Date	1990
Page Count	8
Abstract	The testimony concerns the position of NIOSH regarding the science and health effects caused by exposure to asbestos (1332214). Based on studies of workers exposed to asbestos before general governmental regulations were in place, it is known that asbestos causes specific diseases such as asbestosis and mesothelioma. Asbestos is one of the leading causes of lung cancer in nonsmokers. Asbestos exposure for smokers increases the risk of lung cancer approximately 55 times. Asbestos is also associated with an increased risk of gastrointestinal and other cancers. Chrysotile (12001295) is much more chemically and biologically reactive than amphibole fibers. There is no compelling evidence at this time to justify different public health policies for different asbestos fiber types. NIOSH reaffirmed its position that no distinction be made between the types of asbestos fibers with regard to regulatory purposes. The scientific evidence suggests that fiber shape and size are the most critical factors in the pathogenicity of the material.
Keywords	Asbestos Occupational diseases Industrial medicine Exposure Asbestosis Pulmonary neoplasms Occupational safety and health Toxic substances Gastrointestinal neoplasms Mesothelioma CAS 12001295 CAS 1332214 Testimony
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	57U - Public Health & Industrial Medicine 57Y - Toxicology 94D - Job Environment 41I - Job Environment 44G - Environmental & Occupational Factors 68G - Environmental Health & Safety
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	See also PB90-179128.
Document Type	Technical Report
NTIS Issue Number	199107