LRTAP EU inventory, gap-filling and data problems. Melanie Tista (ETC, ACM) John van Aardenne (EEA)

Transcription

1 LRTAP EU inventory, gap-filling and data problems Melanie Tista (ETC, ACM) John van Aardenne (EEA)

2 EU LRTAP report: status at the moment Emission trends for the main air pollutants

3 EU LRTAP report: status at the moment Share of EU-28 emissions of the main poll. by sector group

4 Inventory preparation process 1) EU Member States: CLRTAP emission inventory CDR 2) EEA/ETC-ACM collects the data from CDR 3) QA and QC analysis 4) gap-filling 5) gap-filled data compiled into EU LRTAP inventory

5 Why gap-filling? Ideally: no need to gap-fill reported inventory data Regarding the EMEP Reporting Guidelines submitted emission inventories should be complete as possible. inventories of the Member States have to be gap-filled in order to submit a "complete as possible" EU Inventory.

6 Gap-filling procedure MS CLRTAP emission inventory submitted to CDR in 2014 Dataset not complete MS MM data 2014 (CRF) Data complete Dataset complete Dataset not complete MS NEC data 2014 Dataset complete no (further) gapfilling Dataset not complete CLRTAP inventory submitted to EMEP in 2014 Dataset complete Dataset not complete

7 Gap-filling procedure Dataset not complete MS CLRTAP emission inventory submitted in previous years Dataset not complete MS MM data of previous years Dataset not complete Data complete CLRTAP inventory submitted to EMEP in previous years Dataset complete no further gap-filling Data complete Dataset not complete Further gap-filling procedures interpolation, extrapolation ( backwards + forwards ), previous or next years value used

8 Completeness (before the gap-filling) CLRTAP 2014 submissions 'IE' values 1990 no submissions 41 % incomplete values 2012 no submissions empty cells 'NE' 'NR' 16 % incomplete 0 'NO' 'NA' empty cells 'NE' 'NR' 0 'IE' 'NO' 'NA'

9 NOx NMVOCs SOx NH PM PM TSP CO Completeness (before the gap-filling) CLRTAP 2014 submissions 100 % no submissions empty cells 0 'NE' 'NR' 'NA' 'NO' 'IE' + 'C' values

10 Completeness Gap-filling impossible: For certain pollutants (PM, some HMs and POPs), particular Member States in certain cases lacked data for all years. EU emission totals for these pollutants not complete Gap-filling not sufficient: when gap-filling with the notation key NE or 0 and in some cases the notation key NR is carried out. respective inventory not complete at EU level

11 Completeness CLRTAP 2014 EU inventory, only totals: For the year 1990: 3-65 %* of the emissions are based on gap-filling * dependent on the pollutant 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% submitted data gap filled data

12 Completeness CLRTAP 2014 EU inventory, only totals: For the year 2012: 0-19 %* of the emissions are based on gap-filling * dependent on the pollutant 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% submitted data gap filled data

13 Data problems Most frequent problems: Submissions are not provided for the whole time series gap-filling necessary Emissions of some pollutants (e.g. PM, HMs, POPs) are not provided for some years gap-filling necessary if not possible: EU inventory not complete

14 Data problems Most frequent problems: Sectoral emissions are missing and only national totals are provided gap-filling necessary if not possible: o Further analysis not possible (key category analysis, sectoral analysis, ) o EU inventory not complete o 2 different EU totals

15 Data problems Most frequent problems: Sum of sectors is not equal to the national total 2 different EU totals contact Member State Submitted values for PM 2.5 are larger than for PM 10 contact Member State Caused by gap-filling: values for PM 2.5 are larger than for PM 10 manual change possible

16 Data problems Most frequent problems: Inventory data are only provided based on fuel used (for road transport) EU total is a mix of fuel used and fuel sold data

17 Data problems Further problems for gap-filling: Different submissions do not fit together (CLRTAP, CRF, NEC, EMEP) Values were reported once and never again: these values will be used to gap-fill all other years

18 Thank you for your attention! Melanie Tista