council decis januari establish reciproc exchang inform data network individu station measur ambient air pollut member state ec council european union regard treati establish european commun articl thereof regard propos commiss regard opinion econom social committe act accord procedur laid articl treati european commun action programm environ collect baselin data environ improv compat compar transpar object task european environ agenc set council regul eec establish european environ agenc european environ inform observ network establish procedur exchang inform air qualiti order combat pollut nuisanc view improv qualiti life environ commun monitor long term trend improv result nation commun legisl combat air pollut duplic transfer inform avoid inform transmit european environ agenc commiss experi built result exchang inform pursuant council decis eec june establish common procedur exchang inform surveil monitor network base data relat atmospher pollut caus compound suspend particul council decis eec june establish reciproc exchang inform data network individu station measur air pollut member state make establish complet repres exchang inform increas number pollut consid includ network individu station measur ambient air pollut distinct made inform transmit relat council direct ec septemb ambient air qualiti assess manag hereinaft refer direct air qualiti inform submit inform collect suffici repres enabl pollut level map commun common criteria valid process measur result increas compat compar data transmit adopt decis articl object reciproc exchang inform data network individu station measur ambient air pollut hereinaft refer reciproc exchang establish appli network station cover detail inform describ air pollut monitor network station oper member state measur air qualiti obtain station exchang cover data calcul accord point annex measur air pollut station member state commiss bodi refer articl respons oper reciproc exchang order benefit experi acquir european environ agenc sphere compet commiss call environment agenc inter alia oper practic implement inform system articl pollut reciproc exchang cover air pollut list annex direct air qualiti framework reciproc exchang member state report air pollut list point annex extent relev data bodi mention articl measur continu member state articl station reciproc exchang mean articl cover station framework implement direct adopt accord articl direct air qualiti cover direct refer indent select purpos exist station nation level member state order estim local pollut level pollut list point annex region call background pollut level pollut list annex part reciproc exchang inform establish decis eec provid cover indent articl requir inform network station inform commun commiss concern characterist measur station measur equip oper procedur station structur organ network belong inform transmit made commiss exist legisl air qualiti inform requir indic basi annex ii accord procedur laid articl commiss minimum inform member state transmit station refer indent articl reciproc exchang appli legisl refer articl direct air qualiti forc month entri forc decis latest commiss make member state exist data base inform collect servic subject softwar enabl updat member state correct amend supplement inform updat comput file commiss year entri forc decis octob latest inform access public inform system set european environ agenc suppli agenc member state request accord procedur laid articl commiss technic procedur transfer inform take account provis articl send inform member state commiss includ inform transmit data base prepar year technic report inform collect make member state updat network station data base latest juli member state correct amend supplement inform updat comput file commiss octob latest articl inform provid data obtain station commiss provid result data defin point annex station refer indent articl select criteria direct adopt accord articl direct air qualiti account condit air qualiti member state select station annual data defin point annex station refer indent articl data defin point annex station refer indent articl data transmit made commiss exist legisl air qualiti member state respons valid data transmit calcul valu transmit accord gener rule set annex iii aggreg data calcul statist member state compli criteria stringent annex iv member state transmit result calendar year octob year latest transfer cover calendar year fa member state transmit commiss inform collect octob date entri forc decis station part reciproc exchang inform establish decis eec accord procedur laid articl commiss technic procedur transfer result take account provis articl commiss includ data transmit data base prepar year technic report inform collect make member state updat result data base inform access public inform system set european environ agenc suppli agenc request inform access suppli includ report base valid data commiss prepar gener report public summar collect data outlin underli trend air qualiti european union agreement member state commiss ensur transfer intern bodi select data need purpos intern programm articl member state design bodi respons implement oper reciproc exchang forthwith inform commiss thereof articl accord procedur laid articl direct air qualiti commiss prepar updat procedur transfer data inform liaison activ undertaken european environ agenc field air pollut amend point annex annex ii annex iii annex iv account concept measur techniqu reciproc exchang procedur extens procedur data inform countri articl end year period entri forc decis commiss submit council report implement report accompani propos commiss deem amend decis articl decis appli effect januari articl decis address member state brussel januari council presid zalm oj oj opinion european parliament june oj council common posit februari oj decis european parliament septemb oj oj oj oj decis repeal decis eec oj oj oj annex list pollut statist paramet unit measur pollut list annex direct air qualiti pollut list annex direct air qualiti gt tabl gt data unit measur averag time gt tabl gt data calcul calendar year transmit commiss pollut arithmet median percentil transmit voluntari basi pollut calcul hour maximum calcul raw data recommend averag time tabl pollut ozon statist paramet calcul valu hour pollut arithmet calcul raw data recommend averag time tabl xth percentil calcul valu measur valu list increas order annex ii inform network station measur techniqu extent inform feasibl suppli indic point inform network abbrevi geograph coverag local industri town citi urban area conurb counti region entir countri bodi respons network manag person respons address telephon fax number time refer basi gmt local ii inform station gener inform refer number code technic bodi respons station respons network type station traffic industri background purpos station local nation eu dir gem oecd emep geograph coordin altitud nut level iii pollut measur meteorolog paramet measur relev inform prevail wind direct ratio distanc height closest obstacl local environ landscap morpholog type zone urban suburban rural character zone residenti commerci industri agricultur natur number inhabit zone main sourc emiss public power gener district heat commerci institut residenti combust industri combust product process extract distribut fossil fuel solvent road transport mobil sourc machineri wast treatment dispos agricultur natur character traffic traffic orient station wide street larg volum traffic excess vehicl dai moder volum traffic vehicl dai low volum traffic vehicl dai narrow street larg volum traffic excess vehicl dai moder volum traffic vehicl dai low volum traffic vehicl dai canyon street larg volum traffic excess vehicl dai moder volum traffic vehicl dai low volum traffic vehicl dai highwai larg volum traffic excess vehicl dai moder volum traffic vehicl dai low volum traffic vehicl dai crossroad signal light park bu stop taxi stop iii inform measur techniqu equip analyt principl characterist sampl locat sampl point facad build pavement kerbsid courtyard height sampl point length sampl line result integr time sampl time calibr type automat manual automat manual method frequenc annex iii data valid procedur qualiti code valid procedur valid procedur consider disturb due mainten calibr technic problem scale measur data indic rapid variat excess fall rise data revis basi criteria base knowledg climat meteorolog influenc specif site measur period enabl detect erron measur techniqu comparison preced month pollut standard deviat analysi valid list drawn mark data examin verifi qualiti code transmit data deem valid code defin code correspond data subject valid procedur point code correspond data character erron doubt valid procedur point annex iv criteria aggreg data calcul statist paramet aggreg data criteria calcul hour hour valu data smaller averag time gt tabl gt calcul statist paramet gt tabl gt ratio number valid data season year consid greater season winter januari march inclus octob decemb inclus summer april septemb inclus