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39CHAPTER INDUSTRIAL HYGIENE The industrial hygienist: definitions . . . scope . . . function39-2 Dusts, fumes, and mists: sources . . . magnitude of particles dispersion . . separation m auborne dusts . .. mechanism of inhalation . . retention of dust . .. size of particles inhaled39-3 Physiological effects of dusts, fumes, and mists: pneumoconioses tone dusts and >"" 39-6 Orgonic solvents: labeling . . . general physiological effects . degree of seventy of solvent hazards . . "safety" solvents39-9 Physical energy stresses: thermal environment . atmosphenc pressure . . . mechanical vibration repeated motion . .. nonionizing radiation . ionizing radiation . . . noise39-12 Biological agents end other occupational infections: tuberculosis fungus infections .. anthrax . . . "Q fever" .. brucel losis erysipeloid upper respiratory tract infections------------------------------39-18 Occupational skin diseases: types of dermatitis . . causes of dermatitis . causative factors . physical examinations eliminating contact with irritants . . hygienic measures-__________________________________________________ ___ ______ -------- 39-19 Evaluating the hazard: comparing recommended limits . . a comprehensive system of standards . . peak concentrations time-weighted concentrations______________________ ____________________-- 39-26 Meosunng the hazard: sampling techniques . . types of measur ing instruments . . . electrical direct-reading instruments . color-change and stain-length instruments . . limitations of instruments . direct-reading vs lab analysis------------------------------------------- 39-28 Controlling environmental hazards: substitution . changing the process . isolation or enclosure . . wet methods . local exhaust ventilation general or dilution ventilation . . personal protective equipment . housekeeping . . . special control methods training and education____________ 39-30 ----- ski, P E, based on reviews by selected memTlus chapter was revised by Julian Olisbif- bers of die National Safety Council.