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

Table 6

Correlation between concentrations of As, Cd, and Pb in fingernails of Libyan farmers and their age and working period.

Heavy metal	Correlations, r
	Age	Working period
As	0.376	0.357
Cd	0.382	0.355
Pb	0.254	0.191

Correlation is significant at the 0.01 level . () Correlation is significant at the 0.01 level .