Guidelines for Public and Occupational Chemical Exposures to Materials That Are Also Found in Environmental Tobacco Smoke
Table A-1 gives a series of guidelines for public and industrial populations regarding exposure to chemicals that are also constituents in environmental tobacco smoke (ETS). Not all of the constituents of ETS thought to be toxic or carcinogenic have had guideline levels established. The values in the table are taken from the fourth edition of the Documentation of the Threshold Limit Values, published by the American Conference of Governmental and Industrial Hygienists (1986). The NIOSH recommendations and OSHA standards can be found in the NIOSH Pocket Guide to Chemical Hazards, published by the U.S. Department of Health and Human Services (National Institute for Occupational Safety and Health, 1981).
Each of these guidelines and standards has been established with different considerations in mind. The EPA standards, which apply to outdoor environments, have been established by law to protect the most susceptible individuals. The OSHA standards and ACGIH, NIOSH, and European guidelines have been established for the normal, healthy adult working populations. These guidelines accept some level of risk to some people. They do not consider children, the elderly, or populations with preexisting health conditions who may be at greater risk for health effects of exposure. The appropriate guidelines for susceptible populations probably would be lower. These industrial guidelines also differ from the environmental standards in that they assume that the exposure is limited to a workday period or a time-limited emergency.