SPEGLs

SPEGL Short-Term Public Emergency Guidance Level... 

SPEGLs or EEGLs are available, IDLH levels provide alternative criteria. However, because IDLH levels were not developed to account for sensitive populations and because they were based on a maximum 30-min exposure period, the EPA suggests that the identification of an effect zone should be based on exposure levels of one-tenth the IDLH level. For example, the IDLH level for chlorine dioxide is 5 ppm. Effect zones resulting from the release of this gas are defined as any zone in which the concentration of chlorine dioxide is estimated to exceed 0.5 ppm. Of course, the approach is conservative and gives unrealistic results a more realistic approach is to use a constant-dose assumption for releases less than 30 min using the IDLH level. 

Short-Term Public Emergency Guidance Levels (SPEGL), 27 837-838 Short-term repeated toxicity studies, 25 217 Short-term storage, food preservation by, 72 77-78... 

The criteria and methods document prepared by COT for the development of EEGLs and SPEGLs indicates that theoretical excess carcinogenic risk... 

SPEGL short-term public emergency guidance levels (U.S. NRC)... 

SPEGL (NRG) short-term emergency guidance level... 

National Academy of Sciences (NAS)/National Research Council (NRC) emergency exposure guidance levels (EEGLs) and short-term public emergency guidance levels (SPEGLs). 

NAS/NRC has published a list of EEGLs and SPEGLs as guidance in advance planning for the management of emergencies. 

SPEGLS are concentrations whose occurrence is expected to be rare in the lifetime of any one individual. These values reflect an acceptance of the statistical likelihood of a nonincapacitating reversible effect in an exposed population while avoiding significant decrements in performance. They are considered concentrations acceptable for public exposure during emergencies. 

EEGLs differ from SPEGLs in that they are intended to apply to defined occupational groups. 

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