Ozone Directive: reporting summer data 2007

Transcription

1 Ozone Directive: reporting summer data 2007 Libor Cernikovsky Czech Hydrometeorological Institute, Czech Republic ETC/ACC consortium partner maps: Petr Ptasek, CHMI 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

2 Legislation Under Directive 2002/3/EC MS shall provide: monthly data: before the end of the following month information on the exceedance of information and alert thresholds (1h max > 180 & 240 µg/m 3 ) April September data: not later than 31 st October information on the exceedances of long-term objective for the protection of human health (8h day-max > 120 µg/m 3 ) and 1h monthly maximums for all stations 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

3 Reporting ETC/ACC, under the contract to the EEA, manages the monthly and summer ozone exceedances data flow Countries are requested to deliver their monthly and summer reports to the Eionet Central Data Repository (CDR) according to the technical guidance The detailed definition of the information to be reported can be downloaded from the Reportnet Data Dictionary A Reportnet Generic Data Exchange Module (GDEM) was introduced to facilitate the delivery and validation of ozone exceedance data. The overview for 2007 monthly reporting to 24 th September shows that 33 countries reported in CDR, 5 of these did not use the GDEM enabled Excel spreadsheet. Several countries were using a previous version of Excel spread sheet 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

4 Related information Reporting forms, guidelines documents and other information availableon the ETC/ACC web page... links to the EEA web page In order to provide information as timely as possible, the summaries of the monthly data provided by the countries are available, too 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

5 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

6 Summary table (EEA member and collaborating countires) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

7 Eionet Central Data Repository (CDR) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

8 Resultsofdataflowsearch 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

9 QA/QC on delivered information (1/4) The basic syntax check on the delivered data is made by GDEM automatically and a quality report is generated directly in the CDR delivery envelope in case of mistakes The checks are based on the quality rules stored in the Reportnet Data Dictionary and the report is ready within a few minutes of the data delivery The detailed check on inconsistencies, potential errors and deviations from the suggested structure is made by ETC/ACC during data processing monthly The data suppliers are asked to correct inconsistencies and errors, i. e. upload amended reports, in way of feedback reports in CDR 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

10 QA/QC on delivered information (2/4) The automatically generated feedback by GDEM and manually written feedback by ETC/ACC is saved beside the original file but is not distributed to data supplier automatically So data supplier often does not amend previously submitted information and inconsistencies, errors and deviations from the suggested information structure should be corrected by ETC/ACC before/during the data processing. To correct all - although small - mistakes is very time consuming 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

11 QA/QC on delivered information (3/4) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

12 QA/QC on delivered information (4/4) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

13 QA/QC procedure The delivered information are processed sequentially as it is described in the following flow diagrams 1. Comments 2. Station meta-information 3. Exceedance of ozone information threshold values M o n t h l y 4. Exceedance of ozone alert threshold values 5. Exceedance of health threshold values Summer summary 6. Monthly 1-hour maximum ozone concentrations 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

14 QA/QC: Data file name and structure The structure CCYYMRR for naming files is suggested in order to avoid duplication and to allow a more efficient management of data files (CC is the country code (ISO 3166 alpha 2 code), YY is the year (06 for 2006), M is the month (April =4,., September =9), M=0 is for the summer report, RR is the version number (01 is the initial delivery, 02 is the first revision etc.) The file should contain of sheets named station, info, alert, comment for monthly reporting and sheets health and 1h-max additionally for summer reporting Inconsistencies and errors - incorrect files names - incorrect monthly files type in case of no exceedances reported: sometimes MS Word file with free text, even in national language - incorrect sheet names 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

15 QA/QC: comments processing 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

16 QA/QC: station s metadata (1/6) The correct meta-information on stations is essential for proper summer ozone data analysis, preparation of maps and tables in the summer report In order to assist data suppliers in the task of correct and complete delivery of station meta-information, the ETC/ACC prepares the initial list of ozone stations and connected information already available for the coming summer season The list is the combination of the list of stations with ozone measurements registered in Airbase already and the list of stations delivered by the countries for the last summer season The combination is needed because the data stored in Airbase are one year older (i.e. the list available in spring 2007 covers the year 2005) and the new stations could start and/or finish ozone measurements during the previous year (i.e. during 2006) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

17 QA/QC: station s metadata (2/6) The initial list of ozone stations 2007 contains of: 1. stations from summer 2006 list without any doubt, i.e. a) stations registered with ozone measurement in Airbase already b) stations from summer 2006 list registered in Airbase already, but without O 3 measurement registration in whether there is difference between summer 2006 and Airbase in altitude, longitude, latitude, type of station or type of area, the record from Airbase is used as the correct one, except of case where more detailed type of area R in summer 2006 list is available (e.g. RNCA) - EoI station codes filled in for DE stations and several others -the Type of O 3 station is used from summer 2006 list because is not available from Airbase 2. the rest of stations from summer 2006 list which are not already registered in Airbase - all items are used from 2006 summer list 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

18 QA/QC: station s metadata (3/6) ETC/ACC updates the list of stations continuously during the running summer season based on delivered information The countries are asked to report changes in the ozone monitoring networks during the summer season In the monthly and summer ozone data reporting an unambiguous link between the ozone monitoring station and the station registered in Airbase should be given by the countries The countries are asked to apply the unique station code used under the Exchange of Information (EoI) Decision and assigned in Airbase For stations, which are not yet registered in Airbase, the separate station-information form should be completed within monthly reporting 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

19 QA/QC: station s metadata (4/6) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

20 QA/QC: station s metadata (5/6) Inconsistencies and errors Zone code, EoI station code, Local station code: no any code or incorrect code, e. g. permutation of codes Station name: national characters (alphabet) in names information on station reported already (only information on new station(s) should be reported here, information about closing station should be on sheet Comment; the complete list of stations operational during summer season April September on sheet Station in summer summary file is preferred Longitude, latitude: missing values (blank cell) station administratively belongs to European country, but geographically is located outside European territory different formats: decimal numbers, numbers without decimal point, dd mm ss or degrees, minutes and seconds in separate columns 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

21 QA/QC: station s metadata (6/6) Altitude: missing values (blank cell) Type of station O 3, Type of station EoI, Type of area EoI: missing values (blank cell) use of full text (e. g. Urban) instead of abbreviation (U) incorrect abbreviation Generally: MS Excel cell with number formatted as text duplicate record (multiple reporting of identical station) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

22 QA/QC: Exceedances of 1h thresholds (1/5) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

23 QA/QC: Exceedances of 1h thresholds (2/5) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

24 QA/QC: Exceedances of 1h thresholds (3/5) Inconsistencies and errors Zone code, EoI station code, Local station code: no any code or incorrect code, e. g. permutation of codes Station name: national characters (alphabet) in names name of identical station deviates between individual data files; name deviates from name in the list of stations for summer season, i.e. St. vs. Saint station meta-information is not available neither in the list of stations for summer season nor in the list of stations in the file Month: different months in one file months out of summer season, i. e. numbers outside interval of integers 4 9 entire date (e. g ) formatted as single number in MS Excel instead of really single number (6) name of month instead of number 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

25 QA/QC: Exceedances of 1h thresholds (4/5) Day of month: incorrect number of day (i.e. 31 for April) entire date (e. g ) formatted as single number in MS Excel instead of really single number (5) - Maximum 1 hour mean ozone concentration during exceedance period: number lower or equal 180, resp. 240 µg.m -3 Starting time of the exceedance period: incorrect number entire time (e. g. 18:00:00) formatted as single number in MS Excel instead of really single number - Total number of exceedance hours: number higher than remaining number of hours until midnight - 1 hour mean NO2 concentration during maximum ozone concentration: different indication of missing value (e. g. blank cell, dash, -999) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

26 QA/QC: Exceedances of 1h thresholds (5/5) Generally: MS Excel cell with number formatted as text duplicate record (multiple reporting of identical exceedance); no information threshold exceedance reported in case of alert threshold exceedance reported different 1 hour maximum ozone value for identical episode in information and alert record reported 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

27 QA/QC: Exceedances of ozone long-term objective for health protection (1/2) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

28 QA/QC: Exceedances of ozone long-term objective for health protection (2/2) Unambiguous information on daily 8 hour maximum ozone concentration is requested. Inconsistencies and errors - Zone code, EoI station code, Local station code, Station name, Month, Day of month: no any code or incorrect code, e. g. permutation of codes Maximum daily 8-hour mean ozone concentration: number lower or equal 120 µg.m -3 duplicate record for identical day (maximum daily 8h value higher than 120 µg.m-3 should be reported, not all values exceeded 120 µg.m -3 ) MS Excel cell formatted as text instead of number - Generally: several countries did not report any exceedance due e. g. technical reasons, but knowing by the 1hour maximum values, situation in neighbouring countries and in previous years, it is most likely that the long-term objective for health protection was also exceeded 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

29 QA/QC: monthly 1h max concentrations (1/2) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

30 QA/QC: monthly 1h max concentrations (2/2) Information on 1hour maximum ozone concentrations during summer season for each month and operated station is requested. Inconsistencies and errors - Zone code, EoI station code, Local station code, Station name: no any code or incorrect code, e. g. permutation of codes - Number of valid measurements: percentage instead of number of valid measurements, different indication of missing value (e. g. blank cell, dash, -999) Generally: 1 hour monthly maximums reported not for all stations enumerated in the list of stations for summer season nor in the list of stations in the file 1 hour monthly maximum is higher than 180, resp. 240 µg.m -3, but no information, resp. alert exceedance is reported for identical station duplicate record (multiple reporting of identical station) MS Excel cell with number formatted as text 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

31 Comments on QA/QC procedure The QA/QC could be improved and speeded up by: - automatic check of all inconsistencies and errors described in this paper - automatic distribution of QA/QC feedbacks to data suppliers - automatic notification of data users when the new file is uploaded in CDR - the possibility to display together the list of files from different folders in CDR with possibility to download selected files together (it is very time consuming to download all reported files by clicking on all monthly folders and download file by file; the possibility to download zipped folder is not useful because there is mainly only one file in the monthly folder) - more transparent/uniform labels of CDR data folders 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

32 Delivered data on exceedances Country Code Concetration is rounded 180 ug/m3 is exceedance data reporting Austria AT yes yes 2006, 7 Belgium BE yes no 2006, 7 Bulgaria BG yes no 2006, 7 Cyprus CY?? Czech Republic CZ no yes 2006, 7 Denmark DK yes? 2006 Estonia EE yes? 2006 Finland FI yes? 2006 France FR yes yes 2006, 7 Germany DE no & yes no 2006, 7 Greece EL yes no 2006, 7 Hungary HU no yes 2006, 7 Ireland IE no? 2006 Italy IT no & yes yes 2006, 7 Latvia LV?? Lithuania LT yes no 2006 is rounded Luxembourg LU?? no [%] Malta MT no? 2007 yes [%] Netherlands NL no no 2006, 7 no & yes [%] 17 5 Poland PL no & yes no & yes 2006, 7 Portugal PT no & yes no 2006, 7 Romania RO no & yes yes 2006, 7 Slovak Republic SK yes no 2006, 7 Slovenia SI yes yes 2006, 7 Spain ES yes no 2006, 7 Sweden SE yes? 2006 United Kingdom UK yes? Albania AL?? Bosnia-Hercegovina BA?? Croatia HR?? Iceland IS?? Liechtenstein LI yes no 2006 Macedonia, FYR of MK no yes 2006, 7 Montenegro ME?? Norway NO no? 2006 Serbia RS yes? 2007 Switzerland CH yes yes 2006, 7 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October, 2007 Turkey TR?? 32 Summary Concetration 180 ug/m3 is exceedance

33 Preliminary results Summary information on exceedances of 1 hour thresholds is published monthly following preliminary results are based on data received before 5 th October 2007 no September data... the information describing the situation during the summer is based on tentatively validated and nonvalidated monitoring data and hence should be regarded as preliminary (the level and extent of validation is not reported by the countries) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

34 Location and type of stations 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

35 Exceedances of the information threshold (total number of days for period April August 2007) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

36 Exceedances of the information threshold (number of days per month) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

37 Exceedances of the alert threshold (total number of days for period April August 2007) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

38 Exceedances of the alert threshold (number of days per month) 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

39 Month April May June July August Distribution of exceedances 2007 Stations with exceedance (2) [number] [%] [%] No. of days with exceedance (3) Maximum observed concentration [µg/m3] Occurrence of exceedances (4) Average duration of exceedances [hour] White columns refer to information, grey to alert threshold (2) The number and percentage of stations at which at least one threshold exceedance was observed; fifth column: percentage of stations with information threshold exceedance at which alert threshold exceedances were also observed (3) The number of calendar days on which at least one exceedance of thresholds was observed (4) Occurrence of exceedance is calculated as the average number of observed exceedances per country, i.e. the total number of exceedances for all stations divided by the total number of operational stations. Left column: averaged over all implemented stations, right figure: averaged over all stations which reported at least one exceedance 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

40 Distribution of exceedances Whole area No. of stations (1) Stations with exceedance (2) [number] [%] White columns refer to information, grey to alert threshold [%] No. of days with exceedance (3) Maximum observed concentration [µg/m3] Occurrence of exceedances (4) x x 3.4 x (2) The number and percentage of stations at which at least one threshold exceedance was observed; fifth column: percentage of stations with information threshold exceedance at which alert threshold exceedances were also observed (3) The number of calendar days on which at least one exceedance of thresholds was observed Average duration of exceedances [hour] (4) Occurrence of exceedance is calculated as the average number of observed exceedances per country, i.e. the total number of exceedances for all stations divided by the total number of operational stations. Left column: averaged over all implemented stations, right figure: averaged over all stations which reported at least one exceedance 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

41 Distribution of exceedances 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October, Percentage Information Alert Percentageof thresholdexceeda Percentag June July 2005 Information threshold Alert threshold Percentage

42 Average number of exceedance per station in regions North-western Europe: UK, IE, NL, BE, LU, FR north of latitude 45 Central and eastern Europe: DE, PL, CZ, SK, HU, AT, CH Southern Europe: FR south of lat. 45, PT, ES, IT, SI, GR, CY, MT Northern Europe: has not been included (low number of exc.) Libor North-western Cernikovsky, Europe ETC/ACC: Air pollution by ozone Central in and Europe eastern in summer Europe 2007 preliminary Southern results Europe 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October, Prague - avgt Rome - avgt Paris - avgt

43 Summer report tight deadlines:... 31st October for data delivery... 20th November report s delivery to EEA provisional non-validated data used complete list of stations operational during summer 2007 in summary file appreciated summer reports available on EEA web page 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,

44 Thank you for attention... 12th EIONET Workshop on Air Quality Management and Assessment, Limassol, October,