Page 372 - Industrial Ventilation Design Guidebook

5.3 TOXICITY AND RISKS INDUCED BY OCCUPATIONAL EXPOSURE TO CHEMICAL COMPOUNDS 327

FIGURE 5.55 Scheme for developing toxicity due to chemicals. The stages covered by the terms
toxico- or pharmacokinetics and toxico- and pharmacodynamics are marked on the figure. 64

5.3.6.1 Phases of Risk Assessment
Risk assessment has usually been divided into four different and well-
defined phases to ensure that all important issues will be given a fair con-
sideration. The phases of systematic risk assessment include:

1. Hazard identification