Measurements of Indoor Pollutant Emissions From EPA Phase II Wood Stoves. (3451 K)
Nabinger, S. J.; Persily, A. K.; Sharpless, K. S.; Wise, S. A. Building and Fire Research Laboratory, National Institute of Standards and Technology. Gaithersburg, MD 20899, NISTIR 5575; 65 p. February 1995
Measurements of indoor pollutant emissions were made on four wood stoves meeting the EPA Phase II emission requirements in a 37 m2 (400 ft2) test house at NIST. The stoves were operated in a manner consistent with typical residential use and in accordance with the manufacturers' instructions. Three tests were conducted for each stove, with each test lasting approximately ten hours. During the tests the following quantitites were monitored: combined gaseous and particulate phase concentrations of 13 individual polycyclic aromatic hydrocarbons (PAHs) averaged over the test period, including benzo[a]pyrene (B[a]P); total particulate phase PAH concentrations using a real-time monitor; mass of particulate matter below ten mm in diameter (PM10) averaged over the test period; continuous particle counts in six size ranges; continuous indoor and outdoor concentrations of carbon monoxide and carbon dioxide; building air change rates; pressures across the test house walls and in the stove flue; wind speed and direction; and indoor and outdoor air temperature and relative humidity. Based on these measurements, emission rates of total PAHs (i.e., the sum of eight individual compounds) ranged from 0.05 to 0.24 ng/s and total PAH source strengths ranged from 67 to 711 ng/kg of wood. Emission rates of B[a]P ranged from 0.003 to 0.028 ng/s and B[a]P source strengths ranged from 7 to 90 ng/kg of wood burned.
benzo[a]pyrene; emission rates; indoor air quality; particulates; polycyclic aromatic hydrocarbons; wood stoves