Гигиеническая оценка опасности загрязнения почвы свинцом

Increased blood lead levels in preschool children at 1 mg/dl leads to a reduction in the childs intellectual development 1/4-1/2 points, and the negative effects are detected, and 10 years after exposure to lead at an early age. The aim of this study was to assess soil contamination and hygienic as the depositing of lead in the city of Shymkent. To investigate soil for lead sampling was carried out according to Standart 17.4.02-84. Determination of lead was carried out on atomic absorption spectrometer MGA-915 with electrothermal atomization. The study found an excess of lead in soil in relation to the MCL in all samples taken. Moreover, the distance from the plant lead concentration in the soil while decreasing, but higher than the MPC by 3-4 times. In the study of vegetables grown in contaminated areas, the maximum lead content found in potatoes (an average of 3 MAC in a zone). Thus, the results showed that the greatest pollution is observed at a distance of 500-1000 m from the plant. However, the observed soil contamination throughout the study area, which formed an unfavorable health situation of lead.