Last update of indicator08.01.2024
The indicator describes the development of heavy metals emissions (Pg, Hg, Cd), including a comparison with the fulfilment of obligations under the international conventions.
Convention of European Economic Commission of the United Nations on Long-Range Transboundary Air Pollution (Geneva, 1979)
The Slovak Republic is a party to the Convention by the United Nations Economic Commission on Long Range Transboundary Air Pollution, and it has subscribed to the commitments under the following Protocols:
Protocol to Abate Acidification, Eutrophication and Ground-Level Ozone (1999)
The SR´s commitment is to reduce SO2 emissions up to 2010 by 80%, NO2 emissions up to 2010 by 42%, NH3 emissions up to 2010 by 37%, and NM VOC emissions up to 2010 by 6% - compared to 1990. In 2012, a revision was made to the objectives of the Protocol to reduce emissions in 2020, compared with the base year 2005 as follows:
Pollutant | SO2 | NOX | NMVOC | NH3 | PM2.5 |
% of reduction | 57 | 36 | 18 | 15 | 36 |
Protocol to abate acidification, eutrophication, and ground-level ozone sets the following measures for meeting the objectives as follows:
• to develop new projections of pollutant emissions included in this Protocol by 2010,
• based on these projections prepare the analysis of the possibility of introducing quotas for individual pollutants (for SO2 the emission quotas are already established),
• to implement Directive 94/63 EC, 1999/13/EC on volatile organic compounds and Directive 2001/80/EC on the limitation of emissions of certain pollutants from large combustion plants.
National reduction commitments
National emission reduction commitments for individual Member States are set out in Annex II of the NEC Directive. They are expressed as a percentage reduction in emissions of the monitored pollutants compared to the base year 2005. Emission reduction commitments are set in two phases: (a) commitments in force for 2020 and subsequent years up to 2029 (by the commitments set out in the Appendix to the Protocol on the Reduction of Acidification, Eutrophication, and Ground-Level Ozone to the 1979 Convention on Long-range Transboundary Air Pollution (Appendix to the Gothenburg Protocol)) a (b) more stringent commitments in force since 2030 and beyond. Emission reduction commitments established for the Slovak Republic are shown in Table 1. National emission reduction commitments under the NEC Directive for the Slovak Republic National reduction commitments of the Slovak Republic compared to the base year 2005
National obligations to reduce emissions according to the NEC directive for the Slovak Republic
National reduction commitments of the Slovak Republic compared to the base year 2005 (v %) |
SO2 | NOX | NMVOC | NH3 | PM2,5 |
---|---|---|---|---|---|
Commitments valid for 2020 and subsequent years until 2029 | 57 | 36 | 18 | 15 | 36 |
Commitments valid for 2030 and following years | 82 | 50 | 32 | 30 | 49 |
Protocol on Heavy Metals to the UNECE Convention on Long Range Transboundary Air Pollution (1998)
sets goals to reduce emissions of heavy metals (Pb, Cd, Hg) to the emission level of 1990. The Slovak Republic signed this Protocol in the same year, when it was also signed.
European Green Deal (2019)
It is necessary to review policies in the area of clean energy supply for the entire economy, as well as in the areas of industry, production and consumption, general infrastructure, transport, food and agriculture, construction, taxation, and social benefits. To achieve these goals, it is necessary to increase the perceived value of protecting and restoring natural ecosystems, sustainable use of resources, and human health. This is where transformative change is most needed and potentially most beneficial for the EU's economy, society, and environment.
2.1.3. Mobilization of industry in the interest of a clean and circular economy
The Commission will draw on the experience it has gained in evaluating current air quality legislation. In addition, it will propose strengthening provisions on air quality monitoring, modeling, and plans to help local authorities achieve cleaner air. In particular, the Commission will propose a revision of air quality standards to better align them with the recommendations of the World Health Organization
2.1.5. Accelerating the transition to sustainable and intelligent mobility
Traffic pollution should be radically reduced, especially in cities. The issue of emissions and congestion in cities, as well as the improvement of public transport, should be solved by a combination of several measures. In the case of vehicles with a combustion engine, the Commission will propose stricter standards for emissions of air pollutants
2.1.8. The ambition of zero pollution for a non-toxic environment
The Commission will draw on the experience it has gained in evaluating current air quality legislation. In addition, it will propose strengthening provisions on air quality monitoring, modeling, and plans to help local authorities achieve cleaner air. In particular, the Commission will propose a revision of air quality standards to better align them with the recommendations of the World Health Organization
Greener Slovakia – Environmental Policy Strategy of the Slovak Republic until 2030 (Envirostrategy 2030) (2019)
The environmental strategy is a basic strategic document for the environment with long-term goals aimed at the transition to a green, low-carbon, and inclusive economy. The Envirostrategy 2030 defines the vision until 2030 (to achieve a better quality of the environment and a sustainable circular economy using as few non-renewable natural resources and hazardous substances as possible), identifies basic systemic problems, sets goals for 2030, and proposes framework measures to improve the current situation.
Clean Air Goals:
National emission reduction program of the Slovak Republic (2020)
Among the biggest environmental challenges of the Slovak Republic are also the goals based on Directive (EU) 2016/2284 on the reduction of national emissions of certain air pollutants, which amends Directive 2003/35/EC and repeals Directive 2001/81/EC.
These are commitments to reduce emissions of sulfur oxides, nitrogen oxides, non-methane volatile organic compounds, ammonia, and PM2.5 dust particles by 2030. To achieve these goals, the MoE of the Slovak Republic has currently developed a draft of the National Emissions Reduction Program, in which policies and measures for achieving the aforementioned national commitments in two stages: the period from 2020 to 2029 and the period from 2030 onwards.
The National Emissions Reduction Program contributes to the achievement of air quality targets under Directive 2008/50/EC, as well as ensuring compliance with plans and programs set out in other relevant policy areas, including climate, energy, agriculture, industry and transport. At the same time, this will support the transfer of investments into clean and efficient technologies.
Zmena od roku 2005 | Zmena od roku 2015 | Posledná medziročná zmena | Pokrok pre dosiahnutie konkrétneho stanoveného cieľa |
---|---|---|---|
A significantly decreasing trend was recorded in the case of PCDD/F and PAH emissions, PCB emissions slightly increased. | The downward trend continues, the overall development can be considered positive. | In 2021, compared to 2020, emissions of heavy metals (Pb, Hg, Cd) increased. | The Slovak Republic is succeeding in meeting the goals of its international obligations. |
For the current fulfillment of legislative obligations, the year 2005 is important, which in terms of comparison is considered basic or reference (i.e. the decrease in emissions is compared with 2005). The nature of the pollutant emission trend starting this year is decreasing in most sectors of the economy as a result of legislative measures, the introduction of new technologies, as well as for economic reasons. However, the decline has slowed in recent years.
The evaluation of the emission situation is processed on the basis of emission inventories resulting from the Convention on Long-Range Transboundary Air Pollution (CLRTAP) and thus according to the NFR categorization of sources (NFR - Nomenclature for Reporting).
By comparing the years 2005-2021, a significant decrease in emissions of basic pollutants was found. In the year-on-year comparison (2020 – 2021), there was a slight increase in emissions of all monitored pollutants, except for NH3 emissions, which decreased slightly. This positive development trend was recorded as a result of legislative and technological progress and a change in the fuel base. Changes in the structure and volume of industrial production also had an impact on the development.
Hg emissions [kt/year] by sectors of their origin in 2021
2005 | 2010 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
Energy | 0,580 | 0,326 | 0,285 | 0,266 | 0,267 | 0,259 | 0,260 | 0,268 | 0,274 |
Huoseholds | 0,089 | 0,081 | 0,066 | 0,068 | 0,075 | 0,065 | 0,066 | 0,066 | 0,072 |
Transport | 0,013 | 0,014 | 0,014 | 0,015 | 0,015 | 0,015 | 0,016 | 0,014 | 0,015 |
Agriculture | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 |
Industrial processes and product use | 0,124 | 0,116 | 0,127 | 0,128 | 0,128 | 0,128 | 0,125 | 0,115 | 0,124 |
Waste | 0,063 | 0,023 | 0,027 | 0,027 | 0,023 | 0,029 | 0,032 | 0,037 | 0,050 |
Total | 0,869 | 0,559 | 0,520 | 0,503 | 0,509 | 0,495 | 0,499 | 0,500 | 0,535 |
Pb emissions [kt/year] by sectors of their origin in 2021
2005 | 2010 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
Energy | 9,582 | 1,869 | 1,714 | 1,505 | 1,516 | 1,433 | 1,369 | 1,267 | 1,406 |
Households | 0,478 | 0,477 | 0,397 | 0,437 | 0,445 | 0,354 | 0,380 | 0,380 | 0,436 |
Transport | 0,670 | 0,732 | 0,807 | 0,867 | 0,841 | 0,907 | 0,928 | 0,831 | 0,886 |
Industrial processes and product use | 6,357 | 4,984 | 5,436 | 5,693 | 6,161 | 5,581 | 4,471 | 3,279 | 5,415 |
Agriculture | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 |
Waste | 0,044 | 0,010 | 0,011 | 0,005 | 0,005 | 0,008 | 0,008 | 0,007 | 0,005 |
Total | 17,130 | 8,073 | 8,366 | 8,508 | 8,968 | 8,283 | 7,156 | 5,764 | 8,148 |
Cd emissions [kt/year] by sectors of their origin in 2021
2005 | 2010 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | |
Energy | 0,428 | 0,205 | 0,248 | 0,218 | 0,229 | 0,203 | 0,207 | 0,209 | 0,205 |
Households | 0,304 | 0,309 | 0,243 | 0,267 | 0,263 | 0,206 | 0,224 | 0,226 | 0,257 |
Transport | 0,004 | 0,004 | 0,004 | 0,005 | 0,005 | 0,005 | 0,005 | 0,004 | 0,005 |
Industrial processes and product use | 0,207 | 0,254 | 0,146 | 0,150 | 0,158 | 0,147 | 0,130 | 0,112 | 0,154 |
Agriculture | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 | 0,000 |
Waste | 0,005 | 0,002 | 0,002 | 0,002 | 0,002 | 0,002 | 0,002 | 0,002 | 0,002 |
Total | 0,947 | 0,773 | 0,643 | 0,641 | 0,656 | 0,562 | 0,567 | 0,554 | 0,622 |
Development of heavy metal emissions
When comparing the years 2005 and 2021, a decrease in Pb emissions by 52.4%, Hg by 39% and Cd by 34.7% was recorded. In 2021, compared to 2020, a slight increase was recorded in the case of Hg, Cd emissions, and in the case of Pb emissions, the increase was even more significant. In addition to the tightening of the relevant legislation, the aforementioned development was also influenced by the shutdown of outdated production, the decline in industrial production and the transition to the use of unleaded gasoline. Industry mainly contributes to heavy metal emissions, in the case of cadmium it is the production of copper, and in the case of lead and cadmium the production of iron and steel.
There was a significant change in the methodological procedure for the inventory of heavy metals. In previous years, the emission factors from 1992 were used in the calculations, and currently the emission factors were changed to those that are current and comparable with other countries in the EU. In historical years for Cd emissions, last year's emission factors significantly overestimated emissions from the glass production source, emission factors for the same technology are several times smaller according to newer methodological procedures. The most significant source of Cd emissions has changed from glass production to copper production, the production of which is increasing. The order of the key categories has completely changed due to the change in methodology for heavy metals, therefore the current resulting emissions do not yet take into account the impact of separation technologies. This should change in most important categories in next year's inventory.