Улаанбаатар хотын Баянзүрх дүүргийн хөрсний болон усны хүнд металлын агууламжаас үүсэх эрүүл мэндийн эрсдэлийн үнэлгээний асуудалд

To study health risk assessment from heavy metal contamination in Bayanzurkh district, Ulaanbaatar city

Abstract

Bayanzurkh district is covered in wide open valleys of Tuul, Uliastai and Khol rivers. Most of land use and residential areas are  lied in riverbed alluvial soils areas with strongly degraded and polluted with anthropogenic impact. Soil and air quality in district areas was higher and its possible to affect the environment and human health. There is a need to study the content of heavy elements in the study area and estimate the health risks. Purpose of this study was to evaluate the heavy metal contamination in topsoil and surface water and to use pollution indexes and estimate the human health risk assessment. According to the study results, heavy metal pollution in the Bayanzurkh district did not exceed the permissible concentration specified in the MNS5850: 2019 standard in most areas. However, there are areas of risk that could adversely affect human health. These points were located in service centers and Ger areas. Our result shown the As, Cd are most high risk from contamination of soil and Cr and Cu are shown the high risk with surface water quality.