The purpose of this study is to identify environmental pollution caused by tourism activities in Shahrood county and environmental risk assessment. In the first step, tourism sites (recreational-sports) in the study area were identified. In the next step, the type and extent of environmental pollution in each were identified and their zoning map was drawn. Finally, risk assessment was performed using risk assessment models. The results showed that some types of environmental pollution can be seen in these areas, but the pollution caused by solid waste has been present in all tourist sites. The daily sewage pollution rate produced by natural tourism in Shahrood is relatively high and is about 140kg/day and the waste production rate is 10 tons per year. Also; the average measured sound level is 88dB. In terms of the level of risk of pollutants, the three most common types of pollution are solid waste and then sewage. The lowest type of pollution is related to air pollution. As for air pollution, the type of risk is obvious and the level of the aspect is low. In the case of noise pollution, the type of risk is obvious and the level of risk is high. In the case of wastewater pollution and waste pollution, the type of risk, the level and the level of the aspect is the ultimate. The principles of sustainable tourism in this region have not been observed and the need to develop a comprehensive and strategic model for tourism management is essential. پرونده مقاله