CHILD’S CHRONIC ILLNESS RELATED TO FAULTY HOME FURNACE P-TRAKTM ULTRAFINE PARTICLE COUNTER CASE STUDY #10 Background When diagnosis and medical treatment could not help a chronically ill 3-year-old child, the child’s health specialist suggested comprehensive testing of the boy’s home. A consultant was called to the home to conduct an indoor air quality (IAQ) investigation. Problem Assessment During a telephone interview prior to the visit, the IAQ investigator learned that the child’s home was a typical rural residence subject to cold winter weather. It was heated by an oil- fired, forced air furnace and, to a lesser extent, by a propane fireplace. Additional combustion sources included an oil-fired water heater and a stove used for cooking family meals. N

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