The Air Quality Standards (Scotland) Regulations 2007 No. 182

SCHEDULE 12 Collation of information and criteria for aggregating data and calculating statistical parameters

PART 1 Information to be submitted to the Commission

2.  The Scottish Ministers shall also ensure that the following information is collated–

(a) for ozone, nitrogen dioxide, oxides of nitrogen and the sums of ozone and nitrogen dioxide (added as parts per billion and expressed in μg/m³ ozone) the maximum, 99.9th, 98th and 50th percentiles and annual average and number of valid data from hourly series; and

(b) the maximum, 98th and 50th percentile and annual average from a series of daily 8-hour ozone maxima.