The Air Quality Limit Values Regulations (Northern Ireland) 2002

PART IV LEAD

	Averaging Period	Limit Value	Margin of tolerance	Date by which limit value is to be met
Annual limit value for the protection of human health	Calendar year	0.5 μg/m3	0.4 μg/m3 on 19th July 2001, reducing on 1st January of each following year by equal annual amounts to reach 0 μg/m3 by 1st January 2005	1st January 2005