Which gas is toxic and can also be explosive, with a TLV of 5 ppm?

The gas that is toxic and can also be explosive, with a threshold limit value (TLV) of 5 parts per million (ppm), is Hydrogen Sulfide. This gas is particularly hazardous in mining environments, as it can accumulate in poorly ventilated areas and pose grave risks to workers.

Hydrogen Sulfide is known for its foul odor, resembling that of rotten eggs, and can cause symptoms ranging from irritation of the eyes and respiratory system to severe health issues and even death in high concentrations. Additionally, it can be explosive in certain conditions, particularly when mixed with air in specific proportions. Its low TLV indicates that even a small amount can lead to significant health hazards, emphasizing the need for careful monitoring and safety protocols in environments where this gas may be present.

Recognizing the dangers associated with Hydrogen Sulfide is crucial for mine foremen to ensure the safety of mine workers and maintain compliance with occupational health standards.