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Is My Drywall Chinese? - HB Litigation Conferences

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Coal combustion residues<br />

Derived from naturally occurring minerals<br />

present in the source coal<br />

Non-volatile Non volatile constituents (e.g. heavy metals)<br />

are concentrated<br />

Can present toxicity problems at higher<br />

concentrations<br />

May contain a variety of organic chemicals<br />

Natural metals concentrated in coal<br />

combustion residues:<br />

Aluminum oxide<br />

Iron oxide<br />

Calcium oxide<br />

Arsenic<br />

Hexavalent chromium<br />

Strontium<br />

Cadmium<br />

Copper<br />

Lead<br />

Nickel<br />

Zinc<br />

Selenium<br />

Mercury<br />

Other metals<br />

metals

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