چاپ صفحه |  صفحه نخست سامانه |  چکیده مقاله |  نویسندگان |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| Oil fields are a source of heavy metal pollution, but few studies have evaluated its impact on the intake of these contaminants throughmilk, an important food especially for children. FromFebruary 2015 to 2016, 118 samples of raw cow's milk, 14 of fodder and 8 of water in Southwest Iran were collected from farms close to oil fields or related industries. Lead (Pb) and cadmium (Cd) levels were evaluated by graphite furnace atomic absorption spectrometry. Mean ± SE in milk and fodder were 47.0 ± 3.9 and 54.0 ± 6.9 μg/kg for Pb, and 4.7 ± 1.0 and 3.5 ± 1.3 μg/kg for Cd. No Pb or Cd was detected in water. Most milk samples (82.2%) for Pb were above the permissible limits (20 μg/kg). Exposure to Pb and Cd from milk consumption was calculated in two scenarios: mean and maximum exposure for the age range of 2–90 years. The intake of an average Iranian adult (25 years, 60 kg b. w., 0.14 kg milk/day) would be 6.6 μg Pb and 0.66 μg Cd/day (WI of 46.2 and 4.6 μg, respectively), well belowthe risk values proposed by someinternational organizations, even in the maximumexposure scenario. However, Pb exposure for infants and toddlers may be closer to the risk values, since milk and milk products could be the main contributor to Cd and Pb, and small children consume 2–3 times more food than adults relative to their bodyweight. The risk of Pb and Cd exposure throughmilk close to oil fields should be considered and a monitoring plan for these contaminants is strongly recommended. |
| نویسنده | نفر چندم مقاله |
|---|---|
| بهروز فروغی نیا | دهم |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| Lead and cadmium levels in raw bovinemilk.pdf | 1397/04/07 | 1119479 | دانلود |
| Science of the Total Environment.docx | 1397/04/07 | 556915 | دانلود |
