SCHEDULE 9 Reference methods

PART 2 Group B pollutants in ambient air
	Reference method
Sampling of Group B pollutants other than benzo(a)pyrene	The same method as for sampling and measurement of PM10
Analysis of Group B pollutants other than benzo(a)pyrene	EN 14902: 2005 ‘Ambient air quality – Standard method for the measurement of Pb, Cd, As and NI in the PM10 fraction of suspended particulate matter’
Benzo(a)pyrene concentrations	A method based on manual PM10 sampling equivalent to EN 12341