Gaseous and speciated particulate emissions from the open burning of wastes from tree pruning

Open-air burning of wastes from tree pruning is a common practice in many regions worldwide. However, this practice degrades air quality and contributes to the greenhouse effect. Aiming at characterizing particle (PM10) and gaseous emissions, the smoke from the open burning of vine, olive, willow and acacia branches was sampled and then analyzed by multiple techniques. Emission factors of gaseous compounds were as follows (g kg−1 biofuel, dry basis): 1564–1663 CO2, 40.6–87.7 CO, 2.06–5.82 CH4, 0.91–3.73 ethane