Directive 2002/3/EC of the European Parliament and of the Council (repealed)Show full title

ANNEX I U.K. DEFINITIONS, TARGET VALUES AND LONG-TERM OBJECTIVES FOR OZONE

I. Definitions U.K.

All values are to be expressed in μg/m³. The volume must be standardised at the following conditions of temperature and pressure: 293 K and 101,3 kPa. The time is to be specified in Central European Time.

AOT40 (expressed in (μg/m³)·hours) means the sum of the difference between hourly concentrations greater than 80 μg/m³ (= 40 parts per billion) and 80 μg/m³ over a given period using only the 1 hour values measured between 8:00 and 20:00. Central European Time each day(1).

In order to be valid, the annual data on exceedances used to check compliance with the target values and long-term objectives below must meet the criteria laid down in Section II of Annex III.

II. Target values for ozone U.K.

a Compliance with target values will be assessed as of this value. That is, 2010 will be the first year the data for which is used in calculating compliance over the following three or five years, as appropriate.
b The maximum daily 8-hour mean concentration shall be selected by examining 8-hour running averages, calculated from hourly data and updated each hour. Each 8-hour average so calculated shall be assigned to the day on which it ends. i.e. the first calculation period for any one day will be the period from 17:00 on the previous day to 01:00 on that day; the last calculation period for any one day will be the period from 16:00 to 24:00 on the day.
c If the three or five year averages cannot be determined on the basis of a full and consecutive set of annual data, the minimum annual data required for checking compliance with the target values will be as follows: for the target value for the protection of human health: valid data for one year, for the target value for the protection of vegetation: valid data for three years.
d These target values and permitted exceedance are set without prejudice to the results of the studies and of the review, provided for in Article 11, which will take account of the different geographical and climatic situations in the European Community.
	Parameter	Target value for 2010a d
1. Target value for the protection of human health	Maximum daily 8-hour meanb	120 μg/m3 not to be exceeded on more than 25 days per calender year averaged over three yearsc
2. Target value for the protection of vegetation	AOT40, calculated from 1 h values from May to July	18 000 μg/m3·h averaged over five yearsc

III. Long-term objectives for ozone U.K.

a Community progress towards attaining the long-term objective using the year 2020 as a benchmark shall be reviewed as part of the process set out in Article 11.
	Parameter	Long-term objectivea
1. Long-term objective for the protection of human health	Maximum daily 8-hour mean within a calender year	120 μg/m3
2. Long-term objective for the protection of vegetation	AOT40, calculated from 1 h values from May to July	6 000 μg/m3·h

(1)

Or the appropriate time for ultra-peripheral regions.