black damp meaning in Hindi

Examples

1. Tragically, Grainger died a few days later in the mines of carbon monoxide poisoning, also known as the'black damp'by miners.
2. Although without food, they were able to drink from a pool of water leaking from a coal seam, moving deeper into the mine to escape the black damp.
3. The two shafts were then closed off to smother the fire, but this also had the effect of cutting off oxygen to the miners, and allowing the  black damp,  a suffocating mixture of carbon dioxide and nitrogen, to build up in the mine.
4. Miners could place the safety lamp close to the ground to detect gases, such as carbon dioxide, that are denser than air and so could collect in depressions in the mine; if the mine air was oxygen-poor ( asphyxiant gas ), the lamp flame would be extinguished ( " black damp " or " chokedamp " ).