Question

People usually keep angeethi/burning coal in their closed rooms during winter season. Why is it advised to keep the door open?

Answer 1

Hint: Coal ash, also known as coal combustion residuals or CCRs, is a by-product of coal combustion in coal-fired power plants. Coal ash is made up of a variety of by-products from coal combustion, including: Fly Ash , Bottom Ash, Boiler Slag .

Complete answer:
When angeethi is burned, various hazardous chemicals are released, including carbon dioxide and carbon monoxide. The flow of oxygen is also reduced as a result of this. It causes respiratory problems and can even kill someone who is sleeping. As a result, keeping the door open is recommended to allow for proper air and oxygen movement.
Angethi produce heat by burning coal and have glowing coal or charcoal bits but little or no flames when in use.
Coal-fired power stations contribute significantly to air pollution and greenhouse gas emissions.
Coal combustion emits sulphur dioxide, a hazardous chemical connected to acid rain, in addition to carbon monoxide and heavy metals like mercury.

Note:
Fly ash is a solid waste produced when coal or oil is burned in power plants. Silica, alumina, iron oxide, and residual carbon make up this mixture. Arsenic, cadmium, selenium, strontium, boron, chromium, cobalt, and lead, as well as PAH (poly aromatic hydrocarbon) compounds and dioxins, may all be present.