Tab. II.1 The classification of air pollution sources according to the method of emission monitoring

Type of source	Specified stationary sources	Unspecified stationary sources	Mobile sources
Category	REZZO 1, REZZO 2	REZZO 3	REZZO 4
Sources included	Stationary combustion plants for combustion of fuels with a total heat consumption 0.3 MW and higher, waste incinerators other sources (technological combustion processes, industrial production etc.).	Stationary combustion plants for combustion of fuels with a total nominal heat consumption and lower 0.3 MW, non-specified technological processes(domestic solvent use etc., building and agricultural activities).	Road, railway, water and air transport of persons and freight, tyre and brake wear, road abrasion and evaporation from fuel systems of vehicles using petrol, off-road vehicles and machines used in maintenance of green spaces in parks and forests etc.
Origin of emissions	Reported emission data except for the simple reports* pursuant to Annex No. 11 to the Decree No. 415/2012 Coll.	Calculated emissions from activity data obtained e.g. from the Census, production and energy statistical surveys, road traffic census and the register of vehicles etc., and emission factors.
Method of monitoring	Individually monitored sources REZZO 1 – reported emissions REZZO 2 – emissions calculated from the reported data on fuel consumption and emission factors.	Sources monitored collectively.	Sources monitored collectively.

* data provider reports only the consumption of fuels and gasoline distribution