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You are here: Home / Data and maps / Indicators / Energy-related emissions of ozone precursors / Energy-related emissions of ozone precursors (ENER 005) - Assessment published Apr 2012

Energy-related emissions of ozone precursors (ENER 005) - Assessment published Apr 2012

This content has been archived on 12 Nov 2013, reason: Content not regularly updated
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Generic metadata

Topics:

Energy Energy (Primary topic)

Air pollution Air pollution

Tags:
energy | emissions | ozone precursors
DPSIR: Pressure
Typology: Descriptive indicator (Type A - What is happening to the environment and to humans?)
Indicator codes
  • ENER 005
Dynamic
Temporal coverage:
1990-2009
 
Contents
 

Key policy question: Are energy-related emissions of ozone precursors decreasing?

Key messages

Energy-related emissions accounted for 87% of all Carbon Monoxide (CO) emissions, 43% of all Non-Methane Volatile Organic Compounds (NMVOC) emissions, 96% of all Nitrogen Oxide (NOx) emissions and 4.7% of all Methane (CH4) emissions from the EEA-32 in 2009. Since 1990(2005), these emissions have declined by 58(13)%, 63(13)%, 37(13)% and 22(+8)% in EEA member countries. The largest reduction in emissions occurred in the road transport sector, largely as a result of the continued introduction of catalytic converters in new vehicles during this period and more stringent regulations on emissions.

Changes (%) in emissions of ozone precursors by sector, 1990-2009, EEA-32

Note: The figure shows the emissions methane CH4; carbon monoxide CO; non-methane volatile organic compounds NMVOCs; and nitrogen oxides NOx.

Data source:
Downloads and more info

Changes (%) in emissions of ozone precursors by sector, 2005-2009, EEA-32

Note: The figure shows the emissions methane CH4; carbon monoxide CO; non-methane volatile organic compounds NMVOCs; and nitrogen oxides NOx.

Data source:

EEA, National emissions reported to the Convention on Long-range Transboundary Air Pollution (LRTAP Convention), 2011.  http://www.eea.europa.eu/data-and-maps/data/national-emissions-reported-to-the-convention-on-long-range-transboundary-air-pollution-lrtap-convention-5

EEA, National emissions reported to the UNFCCC and to the EU Greenhouse Gas Monitoring Mechanism, 2010. http://www.eea.europa.eu/data-and-maps/data/national-emissions-reported-to-the-unfccc-and-to-the-eu-greenhouse-gas-monitoring-mechanism-5

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Contribution of different sectors (energy and non-energy) to total emissions of tropospheric ozone precursors, 2009, EEA-32

Note: The figure shows the emission of NOx, NMVOC, CO and CH4 in 2009

Data source:
Downloads and more info

Key assessment

In the EEA-32, energy related emissions of pollutants contributing to tropospheric ozone formation have decreased by 13% (CO), 13% (NMVOC), 13% (NOX) and increased by 8% (CH4) between 2005 and 2009 (and decreased by 10% (CO), 11% (NMVOC), 13% (NOX) and increased by 2% (CH4) in the EU). Emission of the majority of sources decreased apart from Energy industries, household and services and Waste and International bunkers (see Figure 1a and b). Between 2005 and 2009 CO emissions showed the largest decreased in both the EEA32 (21%) and EU27 (20%) countries. Emissions of CO emissions in Belgium  and Hungary halved between 2005 and 2009.  Emissions of NOx ad NMVOC, both regulated under the NEC Directive[1], decreased in the majority of countries apart from Bulgaria and Romania (both NMVOC) and Lithuania (NOx).

Emissions of NOX are responsible for much of the ozone formation occurring in rural areas. In more densely populated regions, in particular close to cities, ozone formation is enhanced by NMVOC emissions. NMVOCs are mainly released from road traffic and the use of products containing organic solvents. NOx and CO are mostly emitted from transport and combustion processes. After release, these precursors are dispersed by wind and atmospheric turbulence. The freshly emitted pollutants mix with other pollutants, including ozone, present in background air, and a complicated process of chemical reactions and continuous dilution takes place.[2]

Energy industries are a significant source of pollutants contributing to tropospheric ozone formation; accounting for 22% of NOX emissions (see Figure 2). This sector increased its emissions by over 9% (CO), 8% (NMVOC) and 24% (CH4) in EEA-32 since 2005 (see Figure 1b). Only emissions of NOx decreased in this sector over the same time period (10%).

Concerning progress in individual countries, emissions of pollutants contributing to tropospheric ozone formation have decreased significantly in most EEA member countries; with the highest reductions reported by Belgium and Hungary (CO, 53% and 49%), Belgium and Norway (NMVOC, 47% and 41%) and United Kingdom (NOX, 30%) and Estonia (CH4, 33%) (see Figure 3). Emissions of CO increased in Lithuanian (6%), Estonia (7%), Bulgaria (7%), Malta (11%) and Liechtenstein (13%). The increase in emissions was from non-road transport, with significant emissions increases also seen from energy industries and manufacturing and construction. Total emissions from Liechtenstein remained small across the period, but increases were seen in the household sector across all pollutants and road transport emissions. Emissions of CO, NMVOC and NOx in Bulgaria and Romania have increased since 2005, primarily in the Road transport and Commercial / Institutional and residential sector.


[1] For more information on countries progress to target can be found under  http://www.eea.europa.eu/publications/nec-directive-status-report-2010

[2] Tropospheric Ozone in EU - The consolidated report, Topic report No 8/1998

Specific policy question: How rapidly are energy-related (except transport) emissions of tropospheric ozone precursors declining?

Changes (%) in emissions of ozone precursors by sector, 1990-2009, EEA-32

Note: The figure shows the emissions methane CH4; carbon monoxide CO; non-methane volatile organic compounds NMVOCs; and nitrogen oxides NOx.

Data source:
Downloads and more info

Specific assessment

Between 2005 and 2009 emissions of CO showed the largest decreased in both the EEA32 (21%) and EU27 (20%) member countries. This decrease can be attributed to a range of measures, including fuel-switching from coal to gas prompted by the liberalisation of the energy market, the requirements of the IPPC and Large Combustion Plant Directives and improved technology efficiencies in all electricity production and consumption sectors.

Specific policy question: How rapidly are transport-related emissions of tropospheric ozone precursors declining?

Changes (%) in emissions of ozone precursors by sector, 1990-2009, EEA-32

Note: The figure shows the emissions methane CH4; carbon monoxide CO; non-methane volatile organic compounds NMVOCs; and nitrogen oxides NOx.

Data source:
Downloads and more info

Specific assessment

The road transport sector is the dominant source of NOX and CO and contributed 38% and 31% of total emissions in 2009 (see Figure 2) in the EEA32 countries. Emissions from road transport has decreased the most in absolute terms with a 37% (CO), 32% (NMVOC) and 20% (NOX) reduction seen in the EEA32 from 2005 to 2009 (see Figure 1b). Decreases in emissions from the transport sector have occurred largely due the increased use of abatement technologies (e.g. selective catalytic reduction (SCR), exhaust gas recirculation (EGR), 3-way catalytic converters) and more stringent emissions standards which all contributed to the reduction of emissions of CO and NOX.

Data sources

More information about this indicator

See this indicator specification for more details.

Contacts and ownership

EEA Contact Info

Anca-Diana Barbu

Ownership

EEA Management Plan

2010 2.8.1 (note: EEA internal system)

Dates

Document Actions

Comments

European Environment Agency (EEA)
Kongens Nytorv 6
1050 Copenhagen K
Denmark
Phone: +45 3336 7100