A measurement instrument measures air pollution live

The Open Knowledge Lab in Stuttgart has developed a free measurement instrument that measures the presence of fine dust particles, hazardous substances, ammoniac and CO2 in the air for 37 euro. This gadget is connected to a W-LAN and sends its results to a database that publishes the results through a map. The gadget can be installed on a balcony or on a window sill. This should help to obtain a better overview of air pollution at a local level and not only from official measurement stations, which are always the same.