Yes it is gas.
Chemicals released from burning coal cause pollution in the atmosphere. Carbon dioxide contributes to global warming. Other pollutants cause acid rain.
Bituminous
Industries use a scrubber,is a device that is used to remove some pollutants. Industries also use clean-coal,is when the plant turns coal into a gas before it is burned,so fewer pollutants are released.
It is very important to use clean coal technology. The pollutants from burning coal causes health problems as well as environmental problems. The clean coal technology cuts back on these pollutants and provides a cheap form of energy.
Some types of coal contain sulphur, and when burned, release sulphur dioxide; this is the major source of sulphur dioxide emissions. There are ways to scrub pollutants out of the smoke emitted by coal-burning power plants, however, I personally think that it makes more sense to stop burning coal and switch to other methods of power generation.
oil and coal polutions
Carbon dioxide, Soxide, coxide.
The major air pollutants found in coal are carbon dioxide and methane.
Brown coal, properly called "lignite", is the lowest quality coal, and is used only in situations where the "coal dollar" must stretch as far as possible. It has the least heat value per ton, and the highest level of smoke pollutants. It is rarely used in developed countries, unless there is no other alternative for fiscal or supply reasons.
Hydroelectricity emits far fewer pollutants (including carbon dioxide) than burning coal.
No, coal is not environmentally friendly. Gathering it requires mining with machinery and burning coal produces many pollutants. Eventually, coal will run out. Solar energy is a good alternative since it is free and will not run out.
Snow and rain are capable of picking up various pollutants. For example, they can pick up pollution from coal fired power plants.