Research Article
An Investigation for Heavy Metals’ Contamination in Farmers’ Fingernails: Case Study in Libya
Table 12
Meta-analysis of heavy metals (As, Cd, and Pb) levels in farmers’ fingernail samples.
| Heavy metal | Present study | Other studies | Libya | Qatar [62] | Malaysia [60] | Carolina, US [61] |
| As (μgg−1) | 3.016 ± 1.857 | 0.26 (0.04–5.73) | 7.801 ± 3.184 | 13.23 (11.11–15.35) | Cd (μgg−1) | 9.059 ± 4.026 | 0.03 (<0.01–0.27) | 0.874 ± 0.746 | 0.20 (0.81–0.21) | Pb (μgg−1) | 11.322 ± 3.785 | 0.51 (0.10–11) | 6.611 ± 5.170 | 1.26 (1.08–1.43) |
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( ): results are expressed as mean ± SD. ( ): results are expressed as mean and range. |