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Global speciated NMVOC Emissions

EDGAR v8.1_VOC_spec

Introduction

Non-methane volatile organic compounds (NMVOC) include a large number of chemical species differing for their chemical composition and properties. The disaggregation of total NMVOC emissions into species is thus required to better model ozone and secondary organic aerosols formation. Region- and sector-specific NMVOC speciation profiles are here developed and applied to the EDGARv8.1 database, with the same sector resolution as the total NMVOC. The complete documentation on the speciation profiles and on the methodology used can be found in Huang et al. (ACP, 2017), while the list of 25 individual species or species groups used for the speciation is reported below.

List of GEIA 25 NMVOC groups with molecular formula:

GEIA IDGEIA groupMolecular formula
voc1Alkanols (alcohols)CnH2n+1OH
voc2EthaneC2H6
voc3PropaneC3H8
voc4ButanesC4H10
voc5PentanesC5H12
voc6Hexanes and higher alkanesCnH2n+2 (n ≥ 6)
voc7Ethene (ethylene)C2H4
voc8PropeneC3H6
voc9Ethyne (acetylene)C2H2
voc10IsoprenesC5H8
voc11MonoterpenesC10H16
voc12Other alk(adi)enes/alkynes (olefines)CnH2n-2
voc13Benzene (benzol)C6H6
voc14Methylbenzene (toluene)C7H8
voc15Dimethylbenzenes (xylenes)C6H4(CH3)2
voc16TrimethylbenzenesC6H3(CH3)3
voc17Other aromaticsCnH2n-6
voc18EstersR-C(=O)O-R'
voc19Ethers (alkoxy alkanes)R-O-R'
voc20Chlorinated hydrocarbonsCH3Cl
voc21Methanal (formaldehyde)CH2O
voc22Other alkanals (aldehyedes)R-CHO
voc23Alkanones (ketones)R-C(=O)-R'
voc24Acids (alkanoic)R-CnHnCOOH
voc25Other NMVOC (HCFCs, nitriles, etc.)NA
Notes: R and R’ denote functional groups. Where general formulae are not appropriate, the simplest molecular formula representing the group is provided. NA = not available

The NMVOC EDGARv8.1 database includes all anthropogenic emissions with the exception of large scale biomass burning. As such, the following sectors are covered in the NMVOC dataset of EDGARv8.1: power generation (ENE), combustion for manufacturing industry (IND), energy for buildings (RCO), road transportation including evaporative emissions for gasoline related fuels (TRO), transformation industry (TRF), fugitive emissions from fuel exploitation (PRO), process emissions during production and application including production of chemicals, paper/food/iron and steel production/ solvent use (PPA), oil refineries (REF), agricultural waste burning (AWB), shipping including both domestic and international shipping (SHIP), railways/ pipelines and off-road transport (TNR_OTH), fossil fuel fires (FFF), waste solid and wastewater (SWD), aviation differentiating among climbing and descent (TNR_AVI_CDS), cruise (TNR_AVI_CRS), landing and take-off (TNR_AVI_LTO) and supersonic (TNR_AVI_SPS).

Timeseries 1970-2022

Annual sector-specific gridmaps (2000-2022)

Sources and references

Huang, G., Brook, R., Crippa, M., Janssens-Maenhout, G., Schieberle, C., Dore, C., Guizzardi, D., Muntean, M., Schaaf, E., and Friedrich, R.: Speciation of anthropogenic emissions of non-methane volatile organic compounds: a global gridded data set for 1970–2012, Atmos. Chem. Phys., 17, 7683–7701, doi:10.5194/acp-17-7683-2017, 2017

Contacts

For more information or data: JRC-EDGAR@ec.europa.eu