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Driftåtgärder mot PM10 i Stockholm: utvärdering av vintersäsongen 2014–2015
Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.ORCID iD: 0000-0001-6600-3122
Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.
Swedish National Road and Transport Research Institute, Society, environment and transport, Environment.ORCID iD: 0000-0002-2679-2611
SLB-analys.
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2016 (Swedish)Report (Other academic)Alternative title
Operational measures against PM10 pollution in Stockholm : evaluation of winter season 2014–2015 (English)
Abstract [sv]

Sedan 2011 pågår ett intensifierat arbete för att sänka halterna av PM10 i Stockholm. Denna rapport presenterar resultat och utvärdering av insatserna gjorda under vintersäsongen 2014–2015. Säsongen uppvisar de lägsta PM10-halterna samt lägst antal dygn över miljökvalitetsnormen för PM10 sedan mätningarna startades i Stockholm år 2000. Beräkningar med NORTRIP-modellen visar att såväl ökad dammbindning, minskad dubbdäcksanvändning, lägre bakgrundshalt som skillnader i meteorologi alla är faktorer som bidragit till att halterna har sjunkit från 2013 till 2015. Behandling med CMA+KF (kaliumformiat) kunde inte visas ge någon extra effekt på PM10-halterna, medan den kvartersvisa dammbindningen gav en ytterligare, men ej statistiskt säkerställd, positiv effekt.

Dammförrådet på vägytan har på alla studerade gator utom Hornsgatan en sjunkande trend de senaste tre åren och uppvisar, liksom tidigare säsonger, en säsongsbunden variation med stora mängder på vinter och tidig vår och låga i oktober och maj. Detaljerade mätningar uppvisar en kraftig variation i dammförrådet tvärs gatorna, med stora ansamlingar utanför körfältet. Vägytans textur bedöms spela en viktig roll för dammets ansamling då den påverkar såväl uppvirvlingen från trafiken, som möjligheten att städa bort dammet. Rapporten ger, utifrån säsongens resultat i kombination med data om åtgärder och meteorologi, några förslag till hur åtgärderna kan förbättras och ger även exempel på hur extra behov eller onödiga insatser kan sökas fram ur befintlig data.

Abstract [en]

Since 2011, intensified efforts are made to reduce the levels of PM10 in Stockholm. This report presents results and evaluation of the efforts made during the winter season 2014–2015. The season has the lowest PM10 concentrations and the lowest number of exceedances of the environmental quality standard for PM10 since measurements started in Stockholm in 2000. Calculations using the NORTRIP model shows that both increased dust binding, reduced use of studded tires, lower background concentration and differences in meteorology are all factors that contributed to reduced levels from 2013 to 2015. Treatment with CMA + KF (potassium formate) did not appear to give any impact on PM10 levels, while block-wise dust binding gave an additional, but not significant, positive effect.

The dust load on the road surface has a declining trend in all streets except Hornsgatan over the past three years and has, as in previous seasons, a seasonal variation with large amounts in winter and early spring and low in October and May. Detailed measurements showed a strong variation in the dust load across streets, with large accumulations outside the driving lane. Road surface texture is considered to play an important role in the accumulation of dust as it affects both the suspension from traffic, as well as the ability to clean off the dust. The report provides, based on the season’s results, combined with data on measures and meteorology, some suggestions for how measures can be improved and also provides examples of how additional needs or unnecessary efforts can be retrieved from the existing data.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2016. , 82 p.
Series
VTI rapport, ISSN 0347-6030 ; 897
Keyword [en]
Particulate matter, Dust, Dust control, Dust removal, Cleaning, Method, Evaluation (assessment), Pollution concentration, Winter, Urban area, Street
National Category
Other Health Sciences
Research subject
10 Road: Transport, society, policy and planning, 15 Road: Environment
Identifiers
URN: urn:nbn:se:vti:diva-10735OAI: oai:DiVA.org:vti-10735DiVA: diva2:937274
Available from: 2016-06-15 Created: 2016-06-15 Last updated: 2017-02-07Bibliographically approved

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