S.L. 549.11 Art. 11Language of Annexes. (The values following 1. Health 110 µg/m3 2. 3 200 µg/m 65 µg/m3 for 3. 3 180 µg/m 4. 3 360 µg/m 1. The (i) as (ii) 2. The (i) I (ii) it At places sites referred programmes data necessary 3. The points in order (i) (ii) *Concentrations †The mean over eight hourly information to

Annexes I to V to these regulations are being published in the English language with the English text of these regulations. ANNEX I * THRESHOLDS FOR OZONE CONCENTRATIONS IN THE AIR ( ) 3 are expressed in µg 03/m . The volume must be standardised at the conditions of temperature and pressure: 293 oK and 101,3 kPa) protection threshold for the mean value over eight hours (†)

Vegetation protection thresholds for the mean value over one hour the mean value over 24 hours

Population information threshold for the mean value over one hour Population warning threshold for the mean value over one hour

ANNEX II MONITORING OF OZONE CONCENTRATIONS

purpose of measuring ozone concentrations in ambient air is to assess: closely as possible the individual risk of exposure of human beings to values in excess of the health protection thresholds; the exposure of vegetation (e.g. forests, natural ecosystems, crops, horticulture) to the values given in Annex I.

measurement points shall be located at geographically and climatologically representative sites where:

the risk of approaching or exceeding the thresholds laid down in Annex is the highest; is likely that one of the targets referred to in paragraph 1 is exposed.

where the competent authority does not have information concerning the to in (i) and (ii), they shall carry out indicative measurement in order to determine the siting of the measurement points to supply the for the implementation of these regulations. competent authority shall establish or designate additional measurement to: contribute towards the identification and description of the formation and transport of ozone and its precursors, monitor changes in ozone concentrations in areas affected by background pollution.

must be measured continuously. eight hours is a non-overlapping moving average; it is calculated four times a day from the values between 0 and 9.00, 8.00 and 17.00, 16.00 and 1.00, 12.00 and 21.00. For the provided pursuant to regulation 8(1), first indent, the mean over eight hours is a simple calculated each hour h from the eight hourly values between h and h-9. Mandatory measurement of oxides of nitrogen and that recommended organic compounds shall be earned out in order to provide information formation, to monitor trans-boundary flows of volatile organic compounds make it possible to identify links between the different pollutants.