نتایج جستجو برای: lead accumulation
تعداد نتایج: 480682 فیلتر نتایج به سال:
Straw mushrooms were grown on lead contaminated rice straw and stubble. Study materials were dried, acid digested, and analyzed for lead using flame atomic absorption spectrophotometry. The results showed the highest lead concentration in substrate was 445.350 mg kg⁻¹ in Treatment 3 (T3) and the lowest was BD (below detection) in Treatment 1 (T1). The maximum lead content in straw mushrooms was...
Lead accumulation in 398 permanent teeth of Kuwaiti subjects, aged between 11 and 74 years (mean age=25+/-8 years) was analyzed by atomic absorption spectrophotometry. A significant correlation was found between dentin lead levels and age. The mean dentin lead concentration was significantly higher in males than in females (6.8+/-4.7 and 5.6+/-4.6, respectively, p=0.015). A formula was establis...
The deleterious biological effects of lead ingestion are well established. There has been a growing concern that ingestion of certain oyster shell-containing calcium supplements and antacids might contribute to an increased risk of lead poisoning in individuals who consume these products [1]. Consumers of calcium supplements and calcium antacids, especially pregnant and lactating women, their u...
This study aimed to examine the usefulness of locally found gastropod snail, Nerita lineata as suitable biomonitor for metal pollution. The accumulation and elimination of chromium (Cr) and lead (Pb) was examined by exposing N. Lineata to different concentrations of Pb (1-4ppm) and Cr (12-15 ppm) under controlled laboratory conditions. The experiments were allowed for four days of accumulation ...
House dust has been suspected as a source of lead in the exposure of children, particularly those whose blood lead levels are in the moderately elevated range. The means by which household surface lead accumulates is at present not clear. By towel wipe sampling, 24 vacant houses in urban Rochester and Buffalo, New York, were examined for lead content on windowsills, floors, and other surfaces. ...
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