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

PART 1 Information to be submitted to the Commission
1 The following information on ozone concentrations shall be obtained and collated—
	Type of station	Level	Averaging/accumulation time	Provisional data for each month from April to September	Report for each year
Information threshold	Any	180μg/m3	1 hour	For each day with any exceedance: date, total hours of, exceedance, maximum 1 hour ozone and related NO2 values when required;	For each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values, when required
				monthly 1 hour maximum ozone	
Alert threshold	Any	240μg/m3	1 hour	For each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values, when required	For each day with any exceedance: date, total hours of exceedance, maximum 1 hour ozone and related NO2 values, when required
Health protection	Any	120μg/m3	8 hours	For each day with any exceedance: date, 8 hours maximum	For each day with any exceedance: date, 8 hours maximum
Vegetation protection	Suburban, rural, rural background	AOT40 = 6,000 μg/m3.h	1 hour, accumulated from May to June		Value
Forest protection	Suburban, rural, rural background	AOT40 = 20,000μg/m3.h	1 hour, accumulated from April to September		Value
Materials	Any	40 μg/m3	1 year		Value
(1) Maximum daily 8-hour mean.					
(2) In this table, “AOT40” has the same meaning as in paragraph 2(d) of Part 4 of Schedule 1.					