Live Oak — The Environmental Protection Agency issued revisions to new source performance standards and emission guidelines from existing hospital, medical, and infectious waste incinerators (HMIWI). They were issued on Sept. 15, 2009. The rulings came about from the Clean Air Act which requires EPA to review and, if appropriate, revise the standards and guidelines every five years. According to EPA, an estimated 393,000 pounds per year of the regulated pollutants will be reduced, of which acid gases (hydrogen chloride and sulfur dioxide, as two examples) comprise about 62 percent, particulate matter about 0.8 percent, carbon monoxide about 0.3 percent, nitrogen oxides about 37 percent, and metals (lead, cadmium, and mercury, for example) and dioxins/furans about 0.2 percent.