1.A.4.c.ii Off-road Vehicles and other Machinery in Agriculture & Forestry

Last updated on 10 Dec 2013 11:53 (cf. Authors)

Short description

Under sub-category 1.A.4.c ii - Agriculture/Forestry/Fishing: Off-road Vehicles and other Machinery fuel combustion activities and resulting emissions from agricultural tractors and other agricultural vehicles are reported.

At the moment, there is no separate activity data available for vehicles used in forestry.

traktor.PNG
NFR-Code Source category Method AD EF Key Source for (by1)
1.A.4.c ii Agriculture/Forestry/Fishing: Off-road Vehicles and other Machinery T1 NS CS NOx (L), PM2.5 & PM10 (L/T), TSP (L)

Method

Activity data

Activity data are calculated from primary activity data (PAD) given in the National Energy Balances (NEBs) for Germany, line 67: 'Commercial, trade, services and other consumers'.

Following the deduction of energy inputs for military vehicles, the remaining amounts of gasoline and diesel oil are apportioned onto off-road construction vehicles (NFR 1.A.2.f ii) and off-road agricultural vehicels (NFR 1.A.4.c ii) with a share of 58 per cent assumed for NFR 1.A.4.c ii (cf. NFR 1.A.2.f ii)

(1)
\begin{gather} AD_\text{ NFR 1.A.4.c ii} = 0.58 \cdot (PAD_\text{ NEB line 67} - AD_\text{ NFR 1.A.5.b}) \end{gather}

Table: Annual mobile fuel consumption in agriculture, [TJ]

1990 1991 1992 1993 1994 1995 1996 1997 1998 1999
Diesel Oil 64,892 65,613 55,284 56,935 56,411 56,723 55,634 55,979 55,297 56,786
Gasoline 3,889 4,167 4,167 4,167 4,294 4,329 4,295 4,295 4,295 4,295
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
Diesel Oil 55,135 53,049 52,121 51,396 49,777 47,457 48,306 47,858 48,874 51,967
Gasoline 4,294 4,273 4,294 4,294 4,294 4,203 4,217 4,238 4,161 2,498
2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Diesel Oil 51,303 51,278
Gasoline 2,410 2,395

italic: recalculated against submission 2012

Emission factors

The EF used are of very different quality: Without better information, constant tier1 values are used for NH3 from diesel oil and gasoline and NMVOC from gasoline. For NOx, NMVOC from diesel oil, SO2, CO, and PM from diesel oil annually changing tier2 values computed within TREMOD-MM (MM=Mobile Machinery) are used, representing the development of fuel qualities and mitigation technologies.

Emission factors used for 2011 estimates

Main Pollutants Particulate Matter Heavy Metals Persistent Organis Pollutants
NEC Other PM2.5 ≤ PM10 ≤ TSP Main HM Other HM Polycyclic Aromatic Hydrocarbons Dioxins & Furans
Pollutant NH3 NMVOC NOx SO2 CO PM2.5 PM10 TSP Pb Cd Hg As - Zn B[a]P - PAH 1-4 PCDD/F
Unit kg/TJ kg/TJ g/TJ mg/TJ g I-Teq
Diesel Oil 4.00 172 685 0.37 718 125 125 125 NE NE NE NE NE NE
Gasoline 4.00 373 725 0.40 4,010 NE NE NE 0.00 1 NE NE NE NE NE

1 leaded gasoline banned in 1997

Trend discussion (for Key Sources)

NFR 1.A.4.c ii - Off-road Vehicles and other Machinery in Agriculture & Forestry is key source for emissions of

  • NOx regarding level
  • PM2.5 regarding level and trend,
  • PM10 regarding level and trend, and
  • TSP regarding the level.

Nitrogen oxides (NOx)

Emissions of nitrogen oxides follow the decreasing trend of fuel cosumed by agricultural vehicles and machinery.

Particulate matter (PM2.5, PM10, and TSP)

Emissions of particulate matter (reported from 1995 onwards) follow the decreasing trend of fuel cosumed in agricultural vehicles and machinery. In addition, the still growing use of filter systems reducing exhaust particle emission (especially soot) intensifies the decreasing trend.

Recalculations

Recalculations occured for 2010 only, due to a revised National Energy Balance 2010. All EFs remain unchanged.

Table: Recalculations in diesel oil consumptions

1990 1995 2000 2005 2010
Submission 2013 [TJ] 64,892 56,723 55,135 47,457 51,303
Submission 2012 [TJ] 64,892 56,723 55,135 47,457 52,656
absolute change [TJ] 0.00 0.00 0.00 0.00 -1,353
relative change [%] 0.00 0.00 0.00 0.00 -2.57

Table: Recalculations in biodiesel consumptions

1990 1995 2000 2005 2010
Submission 2013 [TJ] 3,889 4,329 4,294 4,203 2,410
Submission 2012 [TJ] 3,889 4,329 4,294 4,203 2,417
absolute change [TJ] 0.00 0.00 0.00 0.00 -7.00
relative change [%] 0.00 0.00 0.00 0.00 -0.29

For information on the impacts on 1990 and 2010 emission estimates, please see the pollutant specific recalculation tables following chapter 11.1 - Recalculations.

Uncertainties

Uncertainty estimates for activity data of mobile sources derive from research project FKZ 360 16 023: "Ermittlung der Unsicherheiten der mit den Modellen TREMOD und TREMOD-MM berechneten Luftschadstoffemissionen des landgebundenen Verkehrs in Deutschland". For detailled information, please refer to the project's final report here (German version only!).

Uncertainty estimates for emission factors were compiled during the PAREST research project. Here, the final report has not yet been published.

Planned improvements

Due to a routine revision of the TREMOD MM (Mobile Machinery) model used, emission factors for off-road mobile sources will be reassessed.
In addition, particulate matter emissions from the combustion of gasoline will be included for the first time.

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