Accumulated Ozone Exposure 40 (expressed in (ug/m3) XXX hours) means the sum of the difference between hourly concentrations greater than 80 ug/m3 and 80 ug/m3 between 1 May to 31 July using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. Accumulated Ozone Exposure 40 (expressed in (μg/m3) ∙ hours) means the sum of the difference between hourly concentrations greater than 80 μg/m3 and 80 μg/m3 between 1 May to 31 July using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. O3 - recommended unit: µg/m3 AOT40 vegetation protection (AOT40) averaged over 5 years. Following Directive 2008/50/EC: 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 vegetation: valid data for three years. AOT40 vegetation protection (AOT40) averaged over 5 years. As per Directive 2008/50/EC, 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 vegetation: valid data for three years. O3 - recommended unit: µg/m3 Number of valid hourly values (flag 1, 2, 3) between StartTime => 07:00 UTC and EndTime =< 19:00 AND YYYY-05-01T01:00:00+00:00 and YYYY-07-31T24:00:00+00:00 SUM of all AOT40h between YYYY-05-01T01:00:00+00:00 and YYYY-07-31T24:00:00+00:00 Number of valid hourly values (flag 1, 2, 3) between StartTime => 07:00 UTC and EndTime =< 19:00 AND YYYY-04-01T01:00:00+00:00 and YYYY-09-31T24:00:00+00:00) SUM of all AOT40h between YYYY-04-01T01:00:00+00:00 and YYYY-09-31T24:00:00+00:00 max (0, hourly concentration - 80) for hours with StartTime => 07:00 UTC and EndTime =< 19:00 and period YYYY-04-01T01:00:00+00:00 and YYYY-09-31T24:00:00 Accumulated Ozone Exposure 40 (expressed in (ug/m3) XXX hours) means the sum of the difference between hourly concentrations greater than 80 ug/m3 and 80 ug/m3 between 1 May to 31 July using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. Accumulated Ozone Exposure 40 (expressed in (μg/m3) ∙ hours) means the sum of the difference between hourly concentrations greater than 80 μg/m3 and 80 μg/m3 between 1 May to 31 July using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. O3 - recommended unit: µg/m3 The daily average or daily mean is the average of all valid hourly values for a day. A daily or 24-hourly average is calculated if at least 18 valid hourly values are available. PM10 - recommended unit: µg/m3 PM2.5 - recommended unit: µg/m3 SO2 - recommended unit: µg/m3 Data capture for one day. This is an aggregation type added by EEA The highest hourly value of the day Number of hours with values higher than 180 (unit) in given day O3 - recommended unit: µg/m3 Number of hours with values higher than 240 (unit) in given day O3 - recommended unit: µg/m3 Data fractions missing due to calibration or station repaire. This is an aggregation type added by EEA Average between 1 hour/day of month X to last hour/day of month X (example for 31 days month: 1/X/YearY - 31/X/YearY) PM2.5 - recommended unit: µg/m3 PM10 - recommended unit: µg/m3 O3 - recommended unit: µg/m3 NOX as NO2 - recommended unit: µg/m3 NO2 - recommended unit: µg/m3 BaP in PM10 - recommended unit: ng/m3 Number of days with daymax (P8H-dmax) values higher than 100 (unit) in given month O3 - recommended unit: µg/m3 Number of days with daymax (P8H-dmax) values higher than 120 (unit) in given month O3 - recommended unit: µg/m3 Number of hours with values higher than 180 (unit) in given month O3 - recommended unit: µg/m3 Number of hours with values higher than 200 (unit) in given month Number of hours with values higher than 240 (unit) in given month Number of hours with values higher than 350 (unit) in given month Number of hours with values higher than 400 (unit) in given month Average between 1st January to 31st December Year X (1/1/YearX - 31/12/YearX) Average between 1st January to 31st December (1/1/year X - 31/12/year X) Number of periods when 3 consecutive days are higher than 50 in a given year Three consecutive days in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone, which ever is smaller) ONLY PM2.5 & PM10 - ALT PM2.5 - recommended unit: µg/m3 Number of periods when 3 consecutive days are higher than 90 in a given year Three consecutive days in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone, which ever is smaller) ONLY PM2.5 & PM10 - ALT PM10 - recommended unit: µg/m3 Number of periods when 3 consecutive hours are higher than 200 in a given year Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone or agglomeration, which ever is smaller) ONLY NO2 & SO2 - ALT NO2 - recommended unit: µg/m3 Number of periods when 3 consecutive hours are higher than 350 in a given year Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone or agglomeration, which ever is smaller) ONLY NO2 & SO2 - ALT SO2 - recommended unit: µg/m3 Number of periods when 3 consecutive hours are higher than 400 in a given year Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone or agglomeration, which ever is smaller) ONLY NO2 & SO2 - ALT NO2 - recommended unit: µg/m3 Number of periods when 3 consecutive hours are higher than 500 in a given year Three consecutive hours in exceedance (at locations representative of air quality over at least 100 km 2 or an entire zone or agglomeration, which ever is smaller) ONLY NO2 & SO2 - ALT SO2 - recommended unit: µg/m3 Number of days with daymax values (P8H_dmax) higher than 10 (unit) in given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) CO - recommended unit: mg/m3 The 90.4th percentile of daily averages (P1D) in a given year Aggregation for Compliance. Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) PM10 - recommended unit: µg/m3 The 90.41th percentile of daily averages (P1D) in a given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) PM10 - recommended unit: µg/m3 The 95.07th percentile of daily averages in a given year associated to New Directive for pollutants (corresponding with the 19th highest daily value) SO2 - recommended unit: µg/m3 CO - recommended unit: mg/m3 PM10 - recommended unit: µg/m3 PM2.5 - recommended unit: µg/m3 NO2 - recommended unit: µg/m3 The 99th percentile of daily averages in a given year associated to WHO guidelines for pollutants PM10 (5), PM2.5 (6001), NO2 (8), SO2 (1) and CO (10) CO - recommended unit: mg/m3 SO2 - recommended unit: µg/m3 NO2 - recommended unit: µg/m3 PM2.5 - recommended unit: µg/m3 PM10 - recommended unit: µg/m3 The 99.18th percentile of daily averages (P1Y-P1D) in a given year (corresponding with the 4th highest daily value) - Aggregation uses P1Y-day-max-per99.18 The mean for a multi-__day sampler based data types shall be evaluated in a similar way to the data capture (see section 4.2)- although in this instance is calculated as the time weighted mean of valid measurements over the sample period. mean = _i DCi * Nvalid-i Cvalid-i / _i DCi * Nvalid-i i=1.... n where DCi = the data capture of sample i Nvalid-i = the number of hours of the valid sampling period i Cvalid-i = concentration for valid sampling period i Average between 1st January to 31st December (1/1/year X - 31/12/year X) The data capture for multi day sampler based data types integrated over an averaging period is calculated as the proportion of valid measurement time (at a minimum seconds- alternatively decimal hours or days) relative total measured time in the averaging period- expressed as an percentage. The data capture for a given averagingperiod shall be calculated as follows: Data capture = _i DCi * Nvalid-i / _i Ni * 100 % where DCi = the data capture (in %) of the valid sample I- that is- the effective sampling time in a measuring period Nvalid-i = the number of hours in the valid sample i (validity flag sample > 0) Ni = number of hours in sample i The time coverage is the percentage of measurement time in a given averaging period. Also the time coverage is calculated on base of the number of hours in the sample periods. The time coverage for a given averaging period is calculated as follows (weighted average): Time coverage = _i TCi * Ni / Naveraging_period * 100 % where TCi = the time coverage of sample i Ni = number of hours in sample i Naveraging_period = the total number of hours in the given averaging period (e.g. a year) The highest daily value of the year The 99.18th percentile of daily MEAN (P1Y-P1D) in a given year (corresponding with the 4th highest daily value) - DESCRIPTION UPDATE - notation SHOULD REALLY BE P1Y-P1D-per99.18 SO2 - recommended unit: µg/m3 The 36th highest daily average value in a given year PM10 - recommended unit: µg/m3 The 4th highest daily value in a given year SO2 - recommended unit: µg/m3 The lowest daily value of the year The 50th percentile of DAILY values in a given year Number of days with values higher than 100 (unit) in given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) Number of days with daily average values higher than 125 (unit) in given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) SO2 - recommended unit: µg/m3 Number of days with daily average values higher than 25 (unit) in given year PM2.5 - recommended unit: µg/m3 Number of days with daily average values higher than 4 (unit) in given year CO - recommended unit: mg/m3 Number of days with daily average values higher than 45 (unit) in given year PM10 - recommended unit: µg/m3 Number of days with daily average values higher than 50 (unit) in given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) SO2 - recommended unit: µg/m3 PM2.5 - recommended unit: µg/m3 NO2 - recommended unit: µg/m3 PM10 - recommended unit: µg/m3 Number of days with daily average values higher than 90 (unit) in given year PM10 - recommended unit: µg/m3 Data capture of primary reported units (like hour/day XXX) for the given year The 93.15th percentile of daily 8h maximum (P8H-dmax) in a given year O3 - recommended unit: µg/m3 The 95.07th percentile of daily 8h maximum (P8H-dmax) in a given year O3 - recommended unit: µg/m3 The 99th percentile of daily 8h maximum (P8H-dmax) in a given year O3 - recommended unit: µg/m3 Number of days with daymax (P8H-dmax) values higher than 100 (unit) in given year O3 - recommended unit: µg/m3 Number of days with daymax (P8H-dmax) values higher than 120 (unit) in given year Days in exceedance in a calendar year (i.e. For PM10 and SO2 number of days when daily mean has exceeded the Limit Value in 1 calendar year. For O3 & CO, days when maximum daily 8-h mean exceed the LTO & LV, respectively in 1 calendar year) O3 - recommended unit: µg/m3 Average day max value between 1st January to 31st December Year X (1/1/YearX - 31/12/YearX) Day max data capture for given year The highest P8H-dmax value in given year The 26th highest daymax value in a given year O3 - recommended unit: µg/m3 The lowest day max value in given year Number of valid daymax values in given year The highest hourly value of the year The 99.73th percentile of hourly values (/hour) in a given year (equivalent to 25th highest hourly value) SO2 - recommended unit: µg/m3 The 99.79 percentile of hourly values in a given year (corresponding to 19th highest hourly value) NO2 - recommended unit: µg/m3 The 99.97th percentile of hourly values (/hour) in a given year (equivalent to 4th highest hourly value) SO2 - recommended unit: µg/m3 NO2 - recommended unit: µg/m3 The 19th highest hourly value in a given year NO2 - recommended unit: µg/m3 The 25th highest hourly value in a given year SO2 - recommended unit: µg/m3 The lowest hourly value of the year The 50th percentile of HOURLY values in a given year Number of hours with values higher than 150 (unit) in given year Number of hours in exceedance in a calendar year NO2 - recommended unit: µg/m3 Number of hours with values higher than 180 (unit) in given year Number of hours in exceedance in a calendar year O3 - recommended unit: µg/m3 Number of hours with values higher than 200 (unit) in given year Number of hours in exceedance in a calendar year NO2 - recommended unit: µg/m3 Number of hours with values higher than 240 (unit) in given year Number of hours in exceedance in a calendar year O3 - recommended unit: µg/m3 Number of hours with values higher than 275 (unit) in given year Number of hours in exceedance in a calendar year SO2 - recommended unit: µg/m3 Number of hours with values higher than 350 (unit) in given year Number of hours in exceedance in a calendar year SO2 - recommended unit: µg/m3 Number of hours with values higher than 400 (unit) in given year Number of hours in exceedance in a calendar year NO2 - recommended unit: µg/m3 Average of daily maxiumum 8-hour mean concentration in the six consecutive months (P6M-P8H-dmax) with the highest P6M-P8H-dmax in the year O3 - recommended unit: µg/m3 Total number of primary reported units (like hours/days XXX) in current year Total number of valid primary reported units (like hours/days...) in current year Average of daily maxiumum 8-hour mean concentration in the six consecutive months (P6M-P8H-dmax) with the highest six-month running-average concentration (highest P6M in the year). O3 - recommended unit: µg/m3 Three-year running mean concentration. Average between 1st January Year X-2 to 31st December Year X (1/1/Year X-2 - 31/12/Year X) Number of days with daymax values higher than 120 (unit) averaged over 3 years Days in exceedance averaged over 3 years. Applicable to Ozone Health Target Value as "Days when maximum daily eight- hour mean exceeded the target value averaged over 3 years" O3 - recommended unit: µg/m3 Average between 1 hour/day of month X-5 to last hour/day of month X (example for first 6 month's in the year: 1/1/2021 to 31/6/2021) (example for months between years: 1/8/2021 to 31/1/2022) O3 - recommended unit: µg/m3 Average of the daily maximum eight-hour mean (P8H-dmax) in 6 consecutive months. O3 - recommended unit: µg/m3 The daily maximum 8-hour running mean for a day is the maximum of the valid hourly 8-hour running means for that day. A daily maximum 8-hour mean is calculated if at least 18 valid hourly 8-hour running means are available for that particular day. CO - recommended unit: mg/m3 O3 - recommended unit: µg/m3 The 8-hour running mean value for each hour is calculated as the average of the valid values for that hour and the 7 foregoing hours (averaging period). So- the averaging period of hour1 of dayn is hour17 of dayn-1 until hour1 of dayn. The averaging period of hour24 of dayn is hour16 of dayn until hour24 of dayn. A 8-hourly running averaged concentration is calculated if at least 6 valid hourly values are available. O3 - recommended unit: µg/m3 CO - recommended unit: mg/m3 For quantification of the health impacts the World Health Organisation recommends the use of the SOMO35 indicator. SOMO10 stands for means the sum of the differences between maximum daily 8-hour running mean concentrations greater than 20 µg/m3 (= 10 parts per billion) and 20 µg/m3 For quantification of the health impacts the World Health Organisation recommends the use of the SOMO35 indicator. SOMO35 stands for means the sum of the differences between maximum daily 8-hour running mean concentrations greater than 70 µg/m3 (= 35 parts per billion) and 70 µg/m3 O3 - recommended unit: µg/m3 Average between 1st May to 31th July Year X. Average between 1st April to 30th September Year X. Average between 1st October Year X-1 to 31st March Year X. Average over winter. Average between 1st October year x-1 to 31st March year X. SO2 - recommended unit: µg/m3 Accumulated Ozone Exposure 40 (expressed in (ug/m3) XXX hours) means the sum of the difference between hourly concentrations greater than 80 ug/m3 and 80 ug/m3 between 1 April to 30 September using only the one-hour values measured between 8.00 and 20.00 Central European Time (CET) each day. O3 - recommended unit: µg/m3