Oxygen.
Dust of the radioactive element Radium.
All grinder dust is harmful. Just like saw dust or coal dust, it will build up in your lungs causing breathing issues. Wear a dust mask.
Electric baseboard heaters are not supposed to cause soot. However; dust settles on the elements. When the electricity is turned on, the dust will burn off. There will be a trace of soot from that dust.
True. The vast majority of meteoroids burn up in the atmosphere, and reach the ground only as dust, after drifting around in the atmosphere for some time. (The stuff you wipe off the top of the TV set? Some of it is probably meteor dust.)
Coal has only one advantage relative to oil, which is that it is abundant and relatively inexpensive. Disadvantages include, it is more polluting (due to impurities in the coal) and it is harder to handle; oil can be pumped, whereas coal has to be shoveled. Coal mining is often more difficult and dangerous than pumping oil out of the ground. Coal dust creates the dangers of explosion, and black lung disease.
If you chuck it at people... If you burn it... If you inhale coal dust... Lots of ways :)
The coal dust burns more quickly because it has a greater surface area to be exposed to the flames of the fire, therefore it burns quicker than the lump of coal.
fireball
Coal dust in the air is an explosive mixture, because the mixture of coal and air can burn much more rapidly than solid pieces of coal can (flour in the air is also explosive, or sawdust - any flammable substance in the form of dust becomes explosive if it is mixed into the air). The process of mining coal is messy, and creates a lot of dust. And any spark can set it off. No smoking in the coal mines!
The dangers of coal dust are inhaling the dust which goes into your lungs and skin irritation from dust. Coal dust is harmful for the most part and has no health benefits.
Soot is another word for coal dust.
Particulate coal
Coal mines, coal bins, coal hods, and anywhere coal is or was.
Coal workers pneumoconiosis (CWP), is caused by inhaling coal dust.
any concentration of dust is potentially explosive
Coal dust is a physical toxicant. This is because it is a real thing with real effects.
There are several nasty things that inhaling coal dust can do but the commonest one was pneumoconiosis.Pneumoconiosis is caused by dust in the lungs usually after prolonged environmental or occupational contact.Anthracosis (an-thrah-KOH-sis),also known as coal miner's pneumoconiosis or black lung disease, iscaused by coal dust in the lungs(anthrac means coal dust, and -osis means abnormal condition or disease.