1.A.4.c iii - Agriculture/Forestry/Fishing: National Fishing

Last updated on 19 Mar 2020 09:15 (cf. Authors)

Short description

In category 1.A.4.c iii the emissions of Germany's maritime fishing fleet are reported.

NFR-Code Name of Category Method AD EF Key Category 1
1.A.4.c iii National Fishing T1, T2 NS, M D, M, CS, T1, T2 no key category

Method

Activity Data

Primary fuel delivery data for national fishing is included in NEB lines 6 ('International Deep-Sea Bunkers') and 64 ('Coastal and Inland Navigation') for IMO-registered and unregistered ships respectively.

The actual annual amounts used are therefore calculated within (Deichnik (2019)), where ship movement data (AIS signal) allows for a bottom-up approach providing the needed differentiation.[1]

Table 1: Annual fuel consumption, in terajoules
1990 1995 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018
Diesel Oil 711 549 531 488 473 442 431 429 472 555 1.117 1.208 2.455
Biodiesel 0 0 0 4 12 11 11 10 10 10 8 8 8
Heavy Fuel Oil 24 18 18 16 16 15 14 14 13 0 0 0 0
Ʃ 1.A.4.c iii 735 567 549 508 500 467 456 452 496 565 1,126 1,216 2,463

The strong increase after 2015 cannot be conclusively explained at the moment.
However, even if the over-all fuel quantities delivered to the navigation sector would be somehow misallocated between the specific nautical acitivities, there would be no over- or under-estimation of emissions.

Emission factors

The emission factors applied here, are derived from different sources and therefore are of very different quality.

For the main pollutants, country-specific implied values are used, that are based on tier3 EF included in the BSH model [1] which mainly relate on values from the EMEP/EEA guidebook 2016 [2]. These modelled IEFs take into account the ship specific information derived from AIS data as well as the mix of fuel-qualities applied depending on the type of ship and the current state of activity.

Table 2: Annual country-specific emission factors, in kg/TJ
1990 1995 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018
Diesel fuels1
NH3 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32 0.32
NMVOC 50.0 50.0 50.0 50.0 50.0 50.0 50.0 49.8 50.4 49.6 50.7 51.5 52.9
NOx 1,099 1,099 1,099 1,099 1,099 1,099 1,099 1,090 1,090 1,092 1,092 1,091 1,093
SOx 466 419 233 186 70 65 56 53 50 42 42 42 43
PM 291 262 145 116 44 41 41 43 41 43 40 39 36
BC3 84.2 75.8 42.1 33.7 12.6 11.8 11.8 12.3 12.0 12.4 11.7 11.2 10.4
CO 102 102 102 102 102 102 102 106 103 107 101 96 90
Heavy fuel oil
NH3 0.33 0.33 0.33 0.33 0.33 0.33 0.33 0.34 0.35 NA NA NA NA
NMVOC 33.2 33.2 33.2 33.2 33.2 33.2 33.2 30.6 30.2 NA NA NA NA
NOx 1,187 1,187 1,187 1,187 1,187 1,187 1,188 1,283 1,287 NA NA NA NA
SOx 1.319 1.332 1.323 1.336 496 496 496 496 506 NA NA NA NA
PM2.52 469 474 471 475 176 176 176 149 149 NA NA NA NA
PM10 516 521 518 523 194 194 194 164 164 NA NA NA NA
TSP 516 521 518 523 194 194 194 164 164 NA NA NA NA
BC3´ 56.3 56.8 56.5 57.0 21.2 21.2 21.2 17.9 17.9 NA NA NA NA
CO 182 182 182 182 182 182 182 158 165 NA NA NA NA

1 due to lack of better information: similar EF are applied for fossil diesel oil and biodiesel
2 ratios PM2.5 : PM10 : TSP derived from the tier1 default EF as provided in [2]
3 estimated from f-BCs as provided in [3]: f-BC (HFO) = 0.12, f-BC (MDO/MGO) = 0.31 as provided in [2], chapter: 1.A.3.d.i, 1.A.3.d.ii, 1.A.4.c.iii Navigation, Table 3-2 and Table A1 - BC fractions of PM emissions from relevant studies

NOTE: For the country-specific emission factors applied for particulate matter, no clear indication is available, whether or not condensables are included.

For information on the emission factors for heavy-metal and POP exhaust emissions, please refer to Appendix 2.3 - Heavy Metal (HM) exhaust emissions from mobile sources and Appendix 2.4 - Persistent Organic Pollutant (POP) exhaust emissions from mobile sources.

Trend discussion for Key Sources

NFR 1.A.4.c iii - National Fishing is no key source.

Recalculations

Recalculations occur only to the revised activity data reported for 2016 and 2017.
Here, due to a revision of the official blending rates, the amounts of biodiesel used in NFR 1.A.4.c iii have been revised for 2016 and 2017.

Table 3: Revised biodiesel consumption estimates 2016 and 2017, in terajoules
Biodiesel
2016 2017
Submission 2020 8.49 7.82
Submission 2019 7.88 8.11
absolute change 0.61 -0.29
relative change 7.77% -3.57%

All emission factors remain unrevised, instead.

For more information on recalculated emission estimates for Base Year and 2017, please see the pollutant-specific recalculation tables following chapter 8.1 - Recalculations.

Uncertainties

Uncertainty estimates for emission factors were adopted from NFR 1.A.3.d i as a comparable emission source.

Planned improvements

Besides a routine revision of the BSH model, further focus will be put on the correct allocation of actvity data to the different navigation activities covered in different NFR sub-sectors.


Bibliography
1. Deichnik (2019): Aktualisierung und Revision des Modells zur Berechnung der spezifischen Verbräuche und Emissionen des von Deutschland ausgehenden Seeverkehrs. from Bundesamts für Seeschifffahrt und Hydrographie (BSH); Hamburg, 2019.
2. EMEP/EEA, 2019: EMEP/EEA air pollutant emission inventory guidebook – 2019; Chapter 1.A.3.d.i, 1.A.3.d.ii, 1.A.4.c.iii Navigation; URL: https://www.eea.europa.eu/publications/emep-eea-guidebook-2019/part-b-sectoral-guidance-chapters/1-energy/1-a-combustion/1-a-3-d-navigation
3. Rentz et al., 2008: Nationaler Durchführungsplan unter dem Stockholmer Abkommen zu persistenten organischen Schadstoffen (POPs), im Auftrag des Umweltbundesamtes, FKZ 205 67 444, UBA Texte | 01/2008, January 2008; URL: https://www.umweltbundesamt.de/en/publikationen/nationaler-durchfuehrungsplan-unter-stockholmer
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