Pollution Characteristics of As in Cultivated Land around Coal-Fired Power Plant of Bijie City

Surrounding cultivated land of three coal-fired power plants，such as Bijie thermal power plant，Nayong thermal power plant and Zhijin thermal power plant，were studied，and soil pollution status was evaluated.Results showed that the As content of different soil layers were similar，and relative content of surrounding power plants was no more obvious than that of power plant.Pollution situation of surrounding As of the three power plants was Zhijin thermal power plant>Nayong thermal power plant>Bijie thermal power plant，and overall pollution was relatively light.Soil As content had a significant correlation with soil moisture content，and high As content soil was not suitable for crop growth.Single-factor index method and ground accumulation index method were applied to pollution evaluation of surrounding As of Bijie thermal power plant，which provided instructions for utilization of cultivated land around the plant.