Preliminary Study of Heavy Metals in Low-Cost Jewelry Items Available in Nigerian Markets.
| Autor: | Adie GU; Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria., Oyebade EO; Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria., Atanda BM; Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of health & pollution [J Health Pollut] 2020 Nov 19; Vol. 10 (28), pp. 201202. Date of Electronic Publication: 2020 Nov 19 (Print Publication: 2020). |
| DOI: | 10.5696/2156-9614-10.28.201202 |
| Abstrakt: | Background: Many developing countries either lack or have weakly enforced regulations on imported goods. A high percentage of low-cost jewelry items in Nigeria are imported from abroad. There is concern about the levels of heavy metals present in these products. Objectives: The present study examined the levels of lead (Pb), cadmium (Cd), chromium (Cr) and nickel (Ni) in inexpensive jewelry purchased from retail wholesale shops in Ibadan metropolis, southwestern Nigeria. Methods: One hundred (100) assorted jewelry items were digested in dilute nitric acid solution followed by atomic absorption spectrophotometric analysis. Results: Out of the total number of jewelry items analyzed, 12% of them had Pb concentrations above European Union (EU) safety limits. Also, 63%, 42% and 62% of items had Cd, Cr and Ni average concentrations above their EU limits. Notably, 3%, 27% and 8% of the items had Pb, Cd and Cr concentrations over 10 3 times above their EU limits Overall, Cd showed the highest average level in rings (256,952 mg/kg) followed by bracelets (60,627 mg/kg) and earrings (54,388 mg/kg). All metals in solid bangles were within their EU guidelines. Conclusions: Given the significant deleterious impacts of these metals on human health, low-cost jewelry poses a serious potential threat to users' health. Policies to guarantee the safety of low-cost jewelry items must be established and enforced. Competing Interests: The authors declare no competing financial interests. (© Pure Earth 2020.) |
| Databáze: | MEDLINE |
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