IURF

(redirected from Inhalation Unit Risk Factor)
AcronymDefinition
IURFInhalation Unit Risk Factor (toxicity measure)
References in periodicals archive ?
For our analysis, we calculated the exposure scores for each census tract by multiplying the modeled air concentration and the corresponding inhalation unit risk factor for potentially carcinogenic HAPs.
For each emission source group, we calculated exposure scores by summing the concentration multiplied by the inhalation unit risk factor for any of the 25 potentially carcinogenic HAPs listed in Table 1.
(b) The inhalation unit risk factor is the estimated cancer risk per million persons per pg/[m.sup.3]; values were obtained from Cal/EPA 0EHHA (1997) and the U.S.
For each of these emission source groups, they further calculated exposure scores for each census tract by multiplying the modeled air concentration by the corresponding inhalation unit risk factor for each HAP.