From: Health risk assessment and heavy metal contamination levels in vegetables from Tamale Metropolis, Ghana
Metal
Cd
Cr
Pb
Mn
Fe
Zn
Cu
1
0.23
0.18
−0.45a
0.17
−0.05
0.11
0.33
−0.01
0.46a
0.08
0.27
0.07
0.53b
0.54b
0.01
−0.15
0.20
0.42a
0.06