An Investigation for Heavy Metals’ Contamination in Farmers’ Fingernails: Case Study in Libya

Table 8

Concentration levels of As, Cd, and Pb in fingernail of participating farmers according to PPE usage.

Heavy metal	Concentration levels of studied heavy metals (µgg^−1)
	Use of PPE (N = 28)	Not use of PPE (N = 99)	-value
As	1.678 ± 0.990	3.393 ± 1.886
Cd	6.064 ± 1.891	9.905 ± 4.070
Pb	9.749 ± 2.946	11.767 ± 3.889

(): results are expressed as mean ± SD. N: number of participants.