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Table 2 Exposure factors and reference value of parameters used for the human health risk evaluation of cyanide

From: Human health risk assessment of cyanide levels in water and tuber crops from Kenyasi, a mining community in the Brong Ahafo Region of Ghana

Factor Definition Unit Value Reference
    Children Adult  
C cyanide concentration mg/kg, mg/L    This study
IngR Ingestion rate mg/day 200 100 USEPA (2011)
EF Exposure frequency days/year 350 350 Environmental site assessment guideline (2009)
ED Exposure duration years 6 24 USEPA (2011)
BW Body weight kg 15 55.9 Environmental site assessment guideline (2009)
AT Average time days 365 x ED 365 x ED USEPA (1989)
SA Exposure skin surface area cm2 1600 4350 Environmental site assessment guideline (2009)
AF Skin adherence factor mg/cm day 0.2 0.7 USEPA (1993)
ABF Dermal absorption factor no unit 0.001 0.001 Chabukdhara and Nema (2013)