Local air pollution from wood burning can be quantified by measuring ultrafine particles (PM 0,1). These particles have a diameter of less than 100 nanometer and are counted in units of number per cubic centimeter (cm3). The measurements of DUH and DEC are carried out with a p-trak (model 8525 ultrafine particle counter) of the manufacturer TSI.

Measurements in Germany, Denmark and other EU Member States are planned during the project. Overall, there are three different kinds of measurements:

  • Indoor measurements: Recording the particle pollution in residential buildings.
  • Outdoor measurements: Showing exposure to fine particles in the nearest surroundings in residential areas with a high share of wood heating.
  • Emission measurements (in the chimney): Results will show the influence of different kinds of fuel or different user behavior on the emissions.

The measurements performed within the project are a good indicator for the environmental impact of wood burning appliances and enable comparisons with other emission sources (like roads with heavy traffic). On this basis further studies can be performed. However, the measurements are not valid for legal purposes, for example in the case of neighborhood disputes.