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<br />Page 13│Kittitas County Air Quality Survey│9/30/2014 <br /> <br />Profile of Air Quality Related Behaviors <br />This sectfon of the report gives an overview of indoor and outdoor residentfal burning practfces that <br />contribute to PM2.5 in Kittitas County. <br />Outdoor Burning Practices <br />The highest rates for all outdoor burning behaviors are in Spring (38%) and Summer (32%), however, <br />there are significant amounts done in the Fall as well (22%). The winter has the lowest rates for all <br />residentfal outdoor burning behaviors. The most common type of outdoor burning practfce is <br />recreatfonal in nature (BBQ, fire pits, etc.) and appears to be the most consistent outdoor burning <br />behavior in all four seasons. The rates of recreatfonal burning remain relatfvely constant throughout <br />Spring, Summer and Fall with 46-52% of residents engaging in this behavior. This practfce reduces <br />down to 28% of residents in the Winter. Yard debris is second most common outdoor burning <br />practfce, with the highest rates of burning being in the Spring and Fall. <br />FIGURE 10: Frequency of Outdoor Burning by Season <br />FIGURE 11: Frequency & Type of Outdoor Burning Practices by Season