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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)