Monitoring of mercury, lead and cadmium in hair and teeth samples of general population in Alexandria | ||
| Journal of Pest Control and Environmental Sciences | ||
| Volume 3, Issue 1, June 1991, Pages 23-33 PDF (401.17 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpces.1991.461547 | ||
| Authors | ||
| A. H. El–Sebae* ; Kawther S. El-Gendy; A. El-Eakary; Nabila S. Ahmed | ||
| Pesticides Division, Faculty of Agriculture, Alexandria University, Alexandria, Egypt. | ||
| Abstract | ||
| Forty human samples of scalp hair and teeth were collected to represent the general population in Alexandria during April 1986. The weighted samples were mineralized in strong acid to convert mercury, lead and cadmium content to free inorganic cations. Both cadmium and lead were determined by absorption spectrophotometry, while mercury was measured using atomic absorption spectrophotometry flameless attachment. Mercury levels in the forty hair samples varied in the range of 0.218 to 2.9 µg/gm (13fold), while the levels in the teeth samples were in the range of 0.060 to 5.019 µg/gm (84fold). In hair samples, the level of lead ranged from 5.54 to 19.38 µg/gm (3.4fold), while cadmium was in the range of 0.45 to 1.6 pg/gm (3.6 fold). In teeth samples, lead was in the range of 4.54 to 32.0 µg/gm (7fold), while cadmium was 0.256 to 0.960 µg/gm (4fold). These variations might be attributed to differences in occupational exposure, age, and type of profession. Besides, the three heavy metals vary in their magnitude in the environment. | ||
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