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r <br /> Lastly, water coolers were observed on carpeting in some areas. Overflow ofthe water <br /> bubbler or spills that often occur around the water source can also moisten carpeting. As <br /> discussed previously, moistened carpeting can be a source of mold growth. <br /> Other 1AQ Evaluations <br /> Indoor air quality can be negatively influenced by the presence of respiratory irritants, <br /> such as products of combustion. The process of combustion produces a number of pollutants. <br /> Common combustion emissions include carbon monoxide, carbon dioxide, aster vapor and <br /> smoke (fine airborne particle material . Of these materials, exposure to carbon monoxide and <br /> particulate flatter with a diameter of 2.5 micrometers m or less (PM2.5) can produce <br /> immediate, acute health effects upon exposure. To determine whether combustion products were <br /> present in the indoor environment, M PH IAQ staff obtained measurements for carbon <br /> i <br /> monoxide and P 12. . <br /> i <br /> Carbon Monoxide <br /> Carbon monoxide is a by-product of incomplete combustion of organic matter e.g., <br /> gasoline, wood and tobacco). Exposure to carbon monoxide can produce immediate and acute <br /> health effects. Several air duality standards have been established to address carbon monoxide <br /> and prevent symptoms from exposure to these substances. The M.DPH established a corrective <br /> action level concerning carbon monoxide In ice skating rinks that use fossil-fueled ice <br /> resurfacing equipment. if an operator of an indoor ice rink measures a carbon monoxide level <br /> over 30 ppm, taken 20 minutes after resurfacing within a rink, that operator must take actions to <br /> reduce carbon monoxide levels(MDPH, 1997). <br /> ll <br />