The EDGAR Team updated the global mercury emission inventory, which is included in EDGARv4.tox2; three different forms of mercury have been distinguished: gaseous elemental mercury, gaseous oxidized mercury and particle bound mercury.
The paper “Evaluating EDGARv4.tox2 speciated mercury emissions ex-post scenarios and their impacts on modelled global and regional wet deposition patterns” published open access in Science of the Total Environment (link), describes the emissions inventory (see section A).
Three retrospective emissions scenarios were also developed and evaluated with the GEOS-Chem 3-D mercury model in order to explore the influence of speciation shifts, to reactive mercury forms in particular, on regional wet deposition patterns (see section B).
the new EDGARv4.tox2 mercury emissions dataset
EDGARv4.tox2 mercury emissions are disaggregated by sector and gridded emission data files are provided in two formats: netCDF (in kg/m2/s) and .txt (in t/cell). The EDGARv4.tox2 contains 0.1degx0.1deg emission gridmaps of total mercury and mercury species from 1970-2012.
The emissions of total mercury (Hg), gaseous elemental mercury (Hg_G), gaseous oxidized mercury (Hg_D) and particle bound mercury (Hg_P) by sector are aggregated as following:
- cement = cement production,
- glass = glass production,
- chlor = chlor-alkali industry, mercury cell technology,
- comb_power_ind = combustion in power generation and in industry,
- comb_res_oth = combustion in residential and other combustion (transformation industry and oil refineries),
- gold_A = artisanal and small scale gold production,
- gold_L = large scale gold production,
- Iro = iron and steel production,
- nfe_oth = production of Zn, Cu, Pb and Hg,
- waste = solid waste incineration and agricultural waste burning,
- tro = road transport,
- ship = shipphing.
The EDGARv4.tox2 emissions are calculated based on the energy balance statistics of IEA (2014) (Internet: link)
1970-2012 annual gridmaps by sector
For each sector annual gridmaps (1970-2012) are provided for all substances.
Emission gridmaps are expressed in ton substance/0.1degree x 0.1degree/year for the .txt files and in kg substance/m2/s for the .nc files.
The IPCC 1996 code is used for specification of the sectors (as done before for v4.2).
Combustion in residential and other combustion (transformation industry and oil refineries)
Large scale gold production
Combustion in power generation and in industry
Artisanal and small scale gold production
Production of Zn, Cu, Pb and Hg
Solid waste incineration and agricultural waste burning
Chlor-alkali industry, mercury cell technology
Iron and steel production
retrospective scenarios (S11,S21,S31)
1full description in the paper “Evaluating EDGARv4.tox2 speciated mercury emissions ex-post scenarios and their impacts on modelled global and regional wet deposition patterns” (Muntean et al., 2018)
I. Scenario 1 (S1)
II. Scenario 2 (S2)
III. Scenario 3 (S3)
Sources and references
Marilena Muntean, Greet Janssens-Maenhout, Shaojie Song, Amanda Giang, Noelle E. Selin, Hui Zhong, Yu Zhao, Jos G.J. Olivier, Diego Guizzardi, Monica Crippa, Edwin Schaaf, Frank Dentener, Evaluating EDGARv4.tox2 speciated mercury emissions ex-post scenarios and their impacts on modelled global and regional wet deposition patterns, Atmospheric Environment, Volume 184, 2018, Pages 56-68, ISSN 1352-2310, doi:10.1016/j.atmosenv.2018.04.017.
Muntean, Marilena; Crippa, Monica; Guizzardi, Diego; Schaaf, Edwin; Janssens-Maenhout, Greet (2018): EDGARv4.tox2 Emission Maps. European Commission, Joint Research Centre (JRC) PID: http://data.europa.eu/89h/jrc-edgar-emissionmapsv4tox2
For more information or data: JRC-EDGAR@ec.europa.eu