coal dust


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coal dust

[′kōl ‚dəst]
(mining engineering)
A finely divided coal, sometimes defined as coal that will pass through 100-mesh screens (100 wires to the inch or 40 wires to the centimeter).
References in periodicals archive ?
The department further emphasized that "truck's cargo box shall be properly secured to prevent escape of fugitive coal dust and/or coal spillages along the road."
One of the study was conducted to investigate the potential harmful element (PHE) concentrations in coal dust and evaluate the human risk assessment and health effects near coal mining areas.
The CP material used the coal dust, which was generated from the underground drilling construction as filler, and was supplemented by amino resin as binder, and added some other additives, such as cross-linking, foaming, toughening, and coupling agents.
When a miner is injured, coal dust in the wound creates blue scars - which is called 'being mapped.' .' The portraits by Hilary Powell are also maps - layered coalfaces produced through the processes of stone and offset lithography and printed using coal dust.
The research by the Australian Institute of Marine Science discovered coal dust could also slow the growth rate of seagrasses and fish.
Local residents have campaigned against coal dust and noise from Ffos-y-fran mine for years.
MY dad was a mining man He mined coal from the coal fields of Northumberland As a child I would hold his hand looking at the blue scars and a bullet wound he had He never complained of being ill I still remember washing his back of coal dust and the cuts where the stone from the mine dug in, He said just wash them son just wash them I am a miner's son, we had hardship illness and fun Sliding down a slag heap on a bit of conveyor belting or corrugated tin, It wasn't a race you could win, you just dragged it up and did it again and again Between the slag heap and the farmer's field, was a stream were stickleback fish would swim, Catch them put them in a jar with string around the neck What fun we had fishing in that beck.
Thousands of violations accumulated at Upper Big Branch, the site of the disaster, involving crucial ventilation and coal dust precautions.
Coal dust is known to cause a range of health problem primarily respiratory and cardiovascular illnesses too," said Aishwarya Mabimeni, coal campaigner of Greenpeace.
The concentration of coal dust (Carbon and Quartz) was 4-5mg/m3 and 0.35mg/m3 respectively as against the threshold limits of 2mg/m3 and 0.05-0.1 mg/m3 for 8 hours daily and 40 hours/week.