{
  "url": "https://openlegislation.uk/eu-decision-2011-850/annex-I/division-C",
  "json_url": "https://openlegislation.uk/eu-decision-2011-850/annex-I/division-C.json",
  "legislation": "eudn/2011/850",
  "legislation_title": "Commission Implementing Decision of 12 December 2011 laying down rules for Directives 2004/107/EC and 2008/50/EC of the European Parliament and of the Council as regards the reciprocal exchange of information and reporting on ambient air quality (notified under document C(2011) 9068) (2011/850/EU)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2011-850",
  "path": "annex/I/division/C",
  "kind": "division",
  "number": "(C)",
  "heading": "Pollutants with monitoring requirements",
  "text": "The list includes all pollutants with monitoring requirements referred to in Directives 2004/107/EC and 2008/50/EC. ...\nNOx or the sum of NO and NO2 measures at the same spot can be reported. To be reported as μg NO2/m3.\nAirbase code\nPollutant formula\nPollutant name\nMeasurement unit\nGaseous inorganic pollutants\n1\nSO2\nSulphur dioxide\nμg/m3\n8\nNO2\nNitrogen dioxide\nμg/m3\n9\nNOx\nNitrogen oxides\nμg/m3\n7\nO3\nOzone\nμg/m3\n10\nCO\nCarbon monoxide\nmg/m3\nParticulate Matter (PM)\n5\nPM10\nPM10\nμg/m3\n6001\nPM2,5\nPM2,5\nμg/m3\nPM2,5 Speciation\n1047\nSO 4 2- in PM 2,5\nSulphate in PM 2,5\nμg/m 3\n1046\nNO3 - in PM2,5\nNitrate in PM2,5\nμg/m3\n1045\nNH4 + in PM2,5\nAmmonium in PM2,5\nμg/m3\n1771\nelem. C in PM2,5\nElemental Carbon in PM2,5\nμg/m3\n1772\norg. C in PM2,5\nOrganic Carbon in PM2,5\nμg/m3\n1629\nCa2 + in PM2,5\nCalcium in PM2,5\nμg/m3\n1659\nMg2 + in PM2,5\nMagnesium in PM2,5\nμg/m3\n1657\nK + in PM2,5\nPotassium in PM2,5\nμg/m3\n1668\nNa + in PM2,5\nSodium in PM2,5\nμg/m3\n1631\nCl- in PM2,5\nChloride in PM2,5\nμg/m3\nHeavy Metals\n5012\nPb in PM 10\nLead in PM 10\nμg/m 3\n5014\nCd in PM 10\nCadmium in PM 10\nng/m 3\n5018\nAs in PM 10\nArsenic in PM 10\nng/m 3\n5015\nNi in PM 10\nNickel in PM 10\nng/m 3\nHeavy Metals Deposition\n7012\nPb deposition\nwet/total Pb deposition\nμg/m 2 .day\n7014\nCd deposition\nwet/total Cd deposition\nμg/m 2 .day\n7018\nAs deposition\nwet/total As deposition\nμg/m 2 .day\n7015\nNi deposition\nwet/total Ni deposition\nμg/m 2 .day\n7013\nHg deposition\nwet/total Hg deposition\nμg/m2.day\nMercury\n4013\nMetallic gaseous Hg\nelemental gaseous Mercury\nng/m3\n4813\nTotal gaseous Hg\nTotal gaseous Hg\nng/m3\n653\nReactive gaseous Hg\nreactive gaseous Mercury\nng/m3\n5013\nHg in PM 10\nMercury in PM 10\nng/m 3\nPolycyclic Aromatic Hydrocarbons\n5029\nB(a)P\nBenzo(a)pyrene in PM10\nng/m3\n5610\nBenzo(a)anthracene\nBenzo(a)anthracene in PM10\nng/m3\n5617\nBenzo(b)fluoranthene\nBenzo(b)fluoranthene in PM10\nng/m3\n5759\nBenzo(j)fluoranthene\nBenzo(j)fluoranthene in PM10\nng/m3\n5626\nBenzo(k)fluoranthene\nBenzo(k)fluoranthene in PM10\nng/m3\n5655\nIndeno(1,2,3,-cd)pyrene\nIndeno(1,2,3,-cd)pyrene in PM10\nng/m3\n5763\nDibenzo(a,h)anthracene\nDibenzo(a,h)anthracene in PM10\nng/m3\nPolycyclic Aromatic Hydrocarbons Deposition\n7029\nB(a)P\nBenzo(a)pyrene deposition\nμg/m2.day\n611\nBenzo(a)anthracene\nBenzo(a)anthracene deposition\nμg/m2.day\n618\nBenzo(b)fluoranthene\nBenzo(b)fluoranthene deposition\nμg/m2.day\n760\nBenzo(j)fluoranthene\nBenzo(j)fluoranthene deposition\nμg/m2.day\n627\nBenzo(k)fluoranthene\nBenzo(k)fluoranthene deposition\nμg/m2.day\n656\nIndeno(1,2,3,-cd)pyrene\nIndeno(1,2,3,-cd)pyrene deposition\nμg/m2.day\n7419\nDibenzo(a,h)anthracene\nDibenzo(a,h)anthracene deposition\nμg/m2.day\nVolatile Organic Compounds\n20\nC6H6\nBenzene\nμg/m3\n428\nC2H6\nEthane\nμg/m3\n430\nC2H4\nEthene (ethylene)\nμg/m3\n432\nHC≡CH\nEthyne (acetylene)\nμg/m3\n503\nH3C-CH2-CH3\nPropane\nμg/m3\n505\nCH2 = CH-CH3\nPropene\nμg/m3\n394\nH3C-CH2-CH2-CH3\nn-butane\nμg/m3\n447\nH3C-CH(CH3)2\n2-methylproprane (i-butane)\nμg/m3\n6005\nH2C = CH-CH2-CH3\n1-butene\nμg/m3\n6006\nH3C-CH = CH-CH3\ntrans-2-butene\nμg/m3\n6007\nH3C-CH = CH-CH3\ncis-2-butene\nμg/m3\n24\nCH2 = CH-CH = CH2\n1,3-butadiene\nμg/m3\n486\nH3C-(CH2)3-CH3\nn-pentane\nμg/m3\n450\nH 3 C-CH 2 -CH(CH 3 ) 2\n2-methylbutane (i-pentane)\nμg/m 3\n6008\nH2C = CH-CH2-CH2-CH3\n1-pentene\nμg/m3\n6009\nH3C-HC = CH-CH2-CH3\n2-pentene\nμg/m3\n451\nCH2 = CH-C(CH3) = CH2\n2-methyl-1,3-butadiene (isoprene)\nμg/m3\n443\nC6H14\nn-hexane\nμg/m3\n316\n(CH3)2-CH-CH2-CH2-CH3\n2-methylpentane (i-hexane)\nμg/m3\n441\nC7H16\nn-heptane\nμg/m3\n475\nC8H18\nn-octane\nμg/m3\n449\n(CH3)3-C-CH2-CH-(CH3)2\n2,2,4-trimethylpentane (i-octane)\nμg/m3\n21\nC 6 H 5 -CH 3\nToluene\nμg/m 3\n431\nC 6 H 5 -C 2 H 5\nEthyl benzene\nμg/m 3\n464\nm,p-C 6 H 4 (CH 3 ) 2\nm,p-xylene\nμg/m 3\n482\no-C 6 H 4 (CH 3 ) 2\no-xylene\nμg/m 3\n6011\nC6H3(CH3)3\n1,2,4-trimethylbenzene\nμg/m3\n6012\nC6H3(CH3)3\n1,2,3-trimethylbenzene\nμg/m3\n6013\nC6H3(CH3)3\n1,3,5-trimethylbenzene\nμg/m3\n32\nTHC(NM)\ntotal non methane Hydrocarbons\nμg/m3\n25\nHCHO\nMethanal (formaldehyde)\nμg/m3",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "F",
      "label": "F1",
      "text": "Words in Annex 1 para (C) omitted (31.12.2020) by virtue of The Air Quality (Miscellaneous Amendment and Revocation of Retained Direct EU Legislation) (EU Exit) Regulations 2018 (S.I. 2018/1407), regs. 1, 4(19)(b); 2020 c. 1, Sch. 5 para. 1(1)"
    },
    {
      "type": "X",
      "label": "X1",
      "text": "Substituted by Corrigendum to Commission Implementing Decision 2011/850/EU of 12 December 2011 laying down rules for Directives 2004/107/EC and 2008/50/EC of the European Parliament and of the Council as regards the reciprocal exchange of information and reporting on ambient air quality (Official Journal of the European Union L 335 of 17 December 2011)."
    },
    {
      "type": "footnote",
      "label": "f1",
      "text": "NOx or the sum of NO and NO2 measures at the same spot can be reported. To be reported as μg NO2/m3."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2011/850/annex/I/division/C",
    "retrieved_at": "2026-11-01T15:15:36.066942+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}