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EDGAR

Global Emissions EDGARv4.tox2 (November 2017)

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 Atmospheric Environment (https://www.sciencedirect.com/science/article/pii/S1352231018302425), 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).

SECTION A: 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: http://www.oecd-ilibrary.org/energy/co2-emissions-from-fuel-combustion-2014_co2_fuel-2014-en)

 

1970-2012 annual gridmaps by sector

For each sector annual gridmaps (1970-2012) are provided for all substances.

Notes:
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).

1A1a+1A2

Combustion in power generation and in industry

Hg, Hg_D, Hg_G, Hg_P

1A3b

Road transportation

Hg, Hg_D, Hg_G, Hg_P

1A4+1A1b+1A1c+1B1b

Combustion in residential and other combustion (transformation industry and oil refineries)

Hg, Hg_D, Hg_G, Hg_P

1C2

Shipping

Hg, Hg_D, Hg_G, Hg_P

2A1

Cement production

Hg, Hg_D, Hg_G, Hg_P

2A7

Glass production

Hg, Hg_D, Hg_G, Hg_P

2B5g

Chlor-alkali industry, mercury cell technology

Hg, Hg_D, Hg_G

2C1a+2C1c+2C1d+2C1e+2C1f+2C2

Iron and steel production

Hg, Hg_D, Hg_G, Hg_P

2C5au_A

Artisanal and small scale gold production

Hg, Hg_G

2C5au_L

Large scale gold production

Hg, Hg_D, Hg_G, Hg_P

2C5cp+2C5hg+2C5lp+2C5zp+2C5zs

Production of Zn, Cu, Pb and Hg

Hg, Hg_D, Hg_G, Hg_P

6C+4F

Solid waste incineration and agricultural waste burning

Hg, Hg_D, Hg_G, Hg_P

 

 

SECTION B: 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)
In the reference scenario (EDGARv4.tox2_S1), speciation factors from the Arctic Monitoring and Assessment Programme (AMAP) are applied to all world countries.

 

 

II. Scenario 2 (S2)
In the “EPA_power” scenario, speciation factors from EPA’s Information Collection Request (ICR) are applied to all world countries.

 

 

III. Scenario 3 (S3)
In the “Asia_filedM” scenario, speciation factors from recent scientific publications are applied to all world countries.

 

 

Reference:

Reference: Muntean, M., Janssens-Maenhout, G., Song, S., Giang, A., Selin, N.E., Zhong, H., Zhao, Y., Olivier, J.G.J., Guizzardi, D., Crippa, M., Schaaf, E., Dentener, F., 2018. Evaluating EDGARv4.tox2 speciated mercury emissions ex-post scenarios and their impacts on modelled global and regional wet deposition patterns. Atmospheric Environment 184, 56-68, 2018.