Emission of dioxins from Danish wood-stoves

The main purpose of the investigation was to estimate the annual dioxin emission from Danish wood-stoves. 4 stoves of different designs and 3 types of fuel were tested in 2 operating conditions. Sampling was carried out in a dilution tunnel, making reproducible sampling possible. The dioxin emission was found to depend significantly on the type of stove, the type of fuel and the operating conditions. The average emission was 0.18 ng TEQ/Nm3 (Nordic) in fluegas, or 1.9 ng TEQ/kg fuel. The annual emission in Denmark was estimated to 0.40 g TEQ/year, roughly 100 times lower than the emission from incinerators previously reported.