Heavy metals

RfD

(mg·kg⁻¹day⁻¹)

Risk assessment index

Boulmiougou

Kossodo

DIM

HRI

DIM

HRI

As

0.5

0.0113^a

0.0226^a

0.0022^b

0.0044^b

Cd

0.5

0.0017^a

0.0034^a

0.0019^a

0.0035^a

Cr

0.3

0.0073^a

0.0245^a

0.0140^b

0.0469^a

Cu

0.2

0.1294^a

0.6472^a

0.1545^a

0.7727^a

Hg

0.14

0.0096^a

0.0687^a

0.0094^a

0.0675^a

Ni

0.4

0.0338^a

0.0846^a

0.0841^a

0.2103^b

Se

0.6

0.0245^a

0.0408^a

0.0211^a

0.0352^a

Zn

0.3

0.0694^a

0.2314^a

0.0931^a

0.3106^a