Occupational and Environmental Health Practice Exam 2026 – Your Comprehensive All-In-One Guide to Mastering Disease and Injury Prevention!

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In the case of residential outdoor wood-fired boilers, what was association found between living proximity to an OWB and health symptoms?

No association was found

Living closer to an OWB was associated with fewer symptoms

Living closer to an OWB was associated with fewer symptoms because the study found that living downwind and within 500 feet of an OWB was associated with higher rates of symptoms, which eliminates choice C. Additionally, choice D is incorrect because the study found that there were more health symptoms, not just aesthetic displeasure, associated with living close to an OWB. Choice A is also incorrect because the study did find an association between living proximity to an OWB and health symptoms, but it was the opposite of what was stated in choice B. Overall, the study showed that the closer one lived to an OWB, the more likely they were to experience health symptoms.

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Living downwind and within 500 feet of an OWB was associated with higher rates of symptoms

Only aesthetic displeasure was associated with living close to an OWB

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