Statistics Poland (GUS) C048 D Ind235e API
# Symbol: 2-3-5 # Name: CH4 emission by vehicle type Notes: CH4 - methaneEmission was determined using the COPERT V calculator with the following data range applied:CEPiK: number of vehicles. Quarterly data were used for road tractors and lorries. Annual data were used for urban buses. Only vehicles less than 25 years old are included. Only vehicles with current insurance for a given quarter or for a given year in case of urban buses are included.GDDKiA: road traffic on public roads, vehicles transport performance.IMGW: air temperature and relative humidity. Source of the data is the Institute of Meteorology and Water Management - National Research Institute.