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Showing posts with the label PM10

Another Dirty Side to Coal

Coal is dirty and it can't be cleaned.
We just saw another facet of this problem when particulate matter reached hazardous levels across much of the Hunter Valley on Monday.  Specifically, PM10 levels (the concentration in air of particles 10 micrometers and smaller) were reported to have exceeded national air quality standards at all nine monitoring stations in the coal mining hub of the Upper Hunter.  The cause, not surprisingly, looks to be coal mining.
Although carbon dioxide is the pollutant of most concern from coal, there are a range of air quality issues that arise from the mining, transport, and burning of this fossil fuel.  Even if we do manage to remove CO2 from the emissions of coal fired power stations we can't guarantee that other pollution sources will be eliminated, and this is why "clean coal" is a fallacy.  The mining and transportation of coal, as we saw on Monday, releases dangerous particles into the air.  These particles have both acute and chr…