Evaluation of Some Toxic Elements in the Soil of Langerud: SNorthern Iran |Biomedgrid

As we are sure, all toxic elements are raising. The existence of various carcinogenic elements in the environmental places is known to be the main evidence of this adding. The general purpose of this paper was to assess the heavy metal contamination in Langerud soil, totally Lead (Pb), Cadmium (Cd) and Arsenic (As) which are found playing main role in cancer development. This research completely was done by the self-supporting. To receive a reasonable result for an analytical distribution, 200 mixed soil samples were investigated to find the amount of toxic elements contamination from the different portions of roadsides of Langerud in Guilan. The results showed that the amount of Pb in the mentioned areas was within the range of 4.7-111.9ppm and 3.9-118.7ppm. The Cd amount ranged between 0.1-1.r22ppm and 0.4-0.69ppm. As (arsenic) was measured to be between 0.1-10.5ppm and 1.3-14.5. It is obvious that the amount of Pb contamination in soil is measured to be 400ppm by EPA, and we can express that all the regions in Langerud city are safe and suitable for farming. However, we guess high concentration of toxic elements that may be due to some reasons like leaded petrol.