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Nordic countries suffer from periodic worsening of the air quality during spring with high peak PM10 concentrations (airborne particulate matter with diameter less than 10 µm or 0.01 mm). Characteristic for the high springtime PM10 concentrations are high shares of coarse particles (with diameters between 2.5 and 10µm), a signature of non-exhaust traffic dust formed via abrasion and wear of pavement, traction control materials, vehicle brakes and tyres. This Policy Brief summarizes the current understanding of the road dust system and presents the mitigation measures and policies currently in place in the Nordic countries. It has been compiled as part of the NORTRIP project funded by the Climate and air pollution working group of the Nordic Council of Ministers by researchers from 11 Nordic institutes studying different aspects of traffic non-exhaust emissions and road dust.
Available online: https://pub.norden.org/temanord2021-521/ A study performed by TØI, DTU and VTI and funded by the Nordic Council, compares the handling of climate and environmental effects in CBA in transport projects in the Nordic countries. The main emphasis has been the comparison of recommended methods and assessments between the countries for noise, air pollution and climate effects. Important findings:- For noise Finland take nuisance in consideration while the other countries also include health effects.- For PM, the values are related to PM2.5 in Denmark and Finland, to PM10 in Norway and to both PM2.5 and PM10 in Sweden.- For NOX, the values in Finland and Sweden are almost negligible compared to the values used in Denmark and Norway.- The most extreme difference between values in the Nordic countries relate to global warming emissions where the values of emissions in 2020 vary from €24/ton CO2 in Denmark (with an alternative calculation of €197/ton) to €665/ton in Sweden.
Available online: https://pub.norden.org/nord2023-049/ The purpose of the project is to gain a better understanding of the implications of the new WHO air quality guidelines (AQG) from 2021 in a Nordic setting. Among other things, to estimate how far Nordic countries currently are from complying with the new guidelines, and to provide a foundation for assessment of measures in the Nordic countries to achieve the new recommended WHO levels. This understanding will also serve to provide a Nordic perspective on the new proposed EU's air quality directive from 2022.
Polluted air with impacts on human health and ecosystems is transported with the winds over very long distances. Large-scale biomass burning is an important source for polluted air over the northern hemisphere. In 2006, biomass burning occurred on approximately 2 Mha forest and agricultural land in Russia and neighbouring countries. This highly polluted air was transported across northern Europe all the way to Iceland and Svalbard. High air concentrations of black carbon, ozone and high deposition of nitrogen were measured in Scandinavian forests. High concentrations of particulate matter caused health problems. Large-scale wildfires in Russia have continued until today. The Nordic countries and the EU ought to support neighbouring countries in order to restrict wildfires. Important activities are preventing the burning of agricultural waste and fire-prevention activities in forests.
Available online: http://urn.kb.se/resolve?urn=urn:nbn:se:norden:org:diva-6010 “The aim of the Nordic countries is to be carbon neutral and to demonstrate leadership in the fight against global warming.” These were the words of the Nordic prime ministers in their declaration at a summit in Helsinki as part of active Nordic climate co-operation under the auspices of the Nordic Council of Ministers. Each of the five Nordic countries has national goals for becoming carbon neutral before or by mid-century. In the Helsinki Declaration the Nordics committed themselves to assess the scenarios for how the different Nordic countries can achieve their respective carbon neutrality goals, including implications for various sectors. The aim of this study is to contribute to making this assessment possible and to highlight areas where co-Nordic initiatives can strengthen the Nordic countries’ aims towards carbon neutrality.
Available online: https://pub.norden.org/temanord2022-508/ A group of Nordic air quality researchers organised 10-11th of June 2020 a web-conference on Nordic air quality research for civil servants and the general audience. The name of the conference was Air Quality For All - A Nordic air quality conference (AQ4ALL), and it included an overview of research from three air quality research programmes with active Nordic participation. Presentations were made by researchers from the Swedish Clean Air and Climate (SCAC) research programme, the Nordic-WelfAir (NWA) research project, as well as the EU-funded project Action on Black Carbon in the Arctic (EUA-BCA). The following themes were discussed: • Air quality effects on the Nordic welfare system, • Nordic air pollution and the Arctic climate – effects and solutions, • Air pollution effects on public health and the environment This report gives an overview of the key messages from the projects.
Seventeen pollutants (particles, heavy metals, inorganic gasses and organic compounds) are for the first time analyzed in a screening of the carcinogenic risk at very high resolution and large scale in ambient air in the Nordic countries. Modelled 2010 annual mean air concentrations show no exceedances of the EU air quality values. The only exceedance of US-EPA 1:100,000 cancer risk concentrations occurs for the PAH BaP in Denmark. However, the EU target value threshold for BaP is not exceeded. No emission data for BaP are available for the other countries and important uncertainties are still related to the Danish emissions. Long-range transport is significant except for BaP that originates mostly from residential wood combustion. It is recommended to monitor the influence from residential wood combustion more extensively, and to analyze longer time trends for long-term human exposure.
Background -- Major Goals -- Results -- Present status and future needs -- References