Original Articles: 2014 Vol: 6 Issue: 7
Lead pollution in response to transportation: A case study in the rural-urban fringe zone of Suzhou, northern Anhui Province, China
Abstract
Heavy metal pollution in soil is an important issue in nowadays because it can affect the human health through food chains. In this study, 149 surface soil samples have been collected from the rural-urban fringe zone of Suzhou, northern Anhui Province, China for analyzing the lead concentrations. The results indicate that the lead concentrations range from 7- 42 mg/kg with mean = 13.8 mg/kg. In comparison with the environmental background value of China, only one sample is polluted. However, spatial distribution and cluster analyses suggest that there is a hotspot located near the entrance of the city, and implying that transportation (motor vehicles) is considered to be responsible for the lead pollution in the area. After statistical and spatial outliers removing, the environmental baseline of lead in the surface soil of the area is calculated to be 7.24 – 19.5 mg/kg, and seven samples were identified as polluted.