The assessment was carried out in accordance with the methodology approved by the Ministry of Environment and Climate Change (Decree A/331, 2017) and relevant Mongolian National Standards (MNS). The study comprehensively covered ambient air quality, water quality, soil conditions, as well as geological and hydrogeological settings and physical environmental factors. The results indicate that:
Ambient air quality parameters are below the permissible limits set by MNS 4585:2016;
Drinking water quality complies with MNS 0900:2018;
Soil contamination levels do not exceed the thresholds defined in MNS 5850:2019.
The study also confirms that the project area lies within the Tuul River basin, approximately 2 km from the river, and no adverse impact on surface water has been identified under current conditions. Furthermore, key natural factors—including seismicity, soil composition, hydrogeological conditions, and geomorphological characteristics—have been established to inform subsequent design and engineering solutions.
It is important to note that this assessment does not evaluate project impacts; rather, it defines the existing environmental baseline and provides essential reference data for subsequent Environmental and Social Impact Assessment (ESIA) and feasibility studies.