What is the threshold limit value for nitrogen oxides according to mining safety regulations?

The threshold limit value for nitrogen oxides in mining safety regulations is 0.0005% by volume. This value is critical because nitrogen oxides (NOx) can be harmful pollutants in mining environments, affecting both air quality and the health of workers. Regulating exposure to these gases helps to minimize respiratory issues and other health risks associated with high concentrations of nitrogen oxides.

The very low threshold emphasizes the importance of maintaining a safe working environment in mines, where ventilation is essential to manage air quality and protect workers from harmful contaminants. By adhering to this limit, mining operations can ensure compliance with safety regulations and promote the well-being of their workforce.