RT Book, Section A1 Kuschner, Ware G. A1 Blanc, Paul D. A2 LaDou, Joseph A2 Harrison, Robert J. SR Print(0) ID 1180880501 T1 Gases & Other Airborne Toxicants T2 CURRENT Diagnosis & Treatment: Occupational & Environmental Medicine, 6e YR 2021 FD 2021 PB McGraw Hill PP New York, NY SN 9781260143430 LK accessmedicine.mhmedical.com/content.aspx?aid=1180880501 RD 2024/03/28 AB Potentially hazardous substances may be encountered as airborne toxicants across occupational, vocational, indoor environmental, and ambient exposure scenarios. These substances can exist in one or more of several physicochemical states, including gases, fumes, mists, aerosols, vapors, and smoke. Table 32–1 lists common definitions of these terms. The physicochemical distinctions among categories of airborne toxicants are of limited clinical application, but may be relevant for industrial hygiene monitoring and in interpreting workplace exposure limits. Airborne toxicants cause respiratory tract injury and/or systemic injury beyond any local effects on the airways or lungs. Either group of toxic responses can be mediated through a wide variety of mechanisms.