TCDD in coal fly ash.
D000393:Air Pollutants / Q000032:analysis*; D000395:Air Pollutants, Occupational / Q000032:analysis*; D003031:Coal; D004147:Dioxins / Q000032:analysis*; D011210:Power Plants
D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D003031:Coal; D004147:Dioxins