In 2022, the average concentration of sulfur dioxide (SO₂) in Erdenet was 1-12 µg/m³. The highest concentration was recorded in January at 12 µg/m³.
In 2023, the average concentration of SO₂ was 1-11 µg/m³. The highest concentration was 11 µg/m³ in January and February 2023, showing a decrease of 1 µg/m³ compared to 2022.
In 2024, the average concentration of SO₂ was 1-6 µg/m³. The highest concentration was recorded in January 2024 at 6 µg/m³, which is 5 µg/m³ lower than in 2023.
In 20222, the average concentration of nitrogen dioxide (NO₂) in Erdenet was 46-195 µg/m³. The highest concentration was 195 µg/m³ in December.
In 2023, the average concentration of NO₂ was 6-179 µg/m³. The highest concentration was 179 µg/m³ in January, 16 µg/m³ lower compared to 2022.
In 2024, the average concentration of NO₂ was 46-187 µg/m³. The highest concentration was 187 µg/m³ in February, which is 8 µg/m³ higher compared to 2023.
