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Driftåtgärder mot PM10 i Stockholm: utvärdering av vintersäsongen 2016/2017
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.ORCID iD: 0000-0002-0124-04802
SLB-analys.
RISE.ORCID iD: 0000-0002-2679-2611
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2018 (Swedish)Report (Other academic)Alternative title
Operational measures against PM10 pollution in Stockholm : evaluation of winter season 2016/2017 (English)
Abstract [sv]

Stockholms stad bedriver sedan 2011 ett arbete med att, genom förbättrade och specifika gatudriftsåtgärder minska uppvirvlingen av vägdamm för att minska partikelhalter i luften. Sedan starten har effekterna på såväl dammförråd som luftkvalitet följts upp av VTI och SLB-analys vid Miljöförvaltningen i Stockholm.

Specifika åtgärder har omfattat främst dammbindning med kalciummagnesiumacetat (CMA) och städning med vakuumsug (Disa-Clean). Luftkvalitetsmätningarna visar att miljökvalitetsnormen för PM10 klaras för fjärde året i Stockholm vilket delvis bedöms beror på driftåtgärderna. Den extra dagtida dammbindningen kunde visas sänka dygnsmedelvärdet av PM10 med 6 %, medan den kvartersvisa behandlingen inte kunde visas ha någon tydlig effekt. Vägdammsmängderna mätt som DL180 (vägdamm mindre än 180 μm) tenderar att i genomsnitt ha ökat något jämfört med föregående säsong, särskilt i ytorna mellan hjulspåren. Omläggningen av Folkungagatan har resulterat i kraftigt ökade vägdammsmängder, men också lägre PM10-halter än föregående säsonger. Utvärderingen av möjligheterna att optimera dammbindningen visar att flera dagar med överskridanden på hösten missas, medan flera dagar i januari behandlas med CMA utan att behov egentligen föreligger. Högre precision med prognosbaserade åtgärder behövs för optimering av insatserna.

Abstract [en]

Since 2011, Stockholm City has been working to reduce the impact of road dust through improved and specific street operations to reduce particulate levels in the air. Since its inception, effects on dust load and air quality have been investigated by VTI and SLB-analys at the Environmental Management in Stockholm. Specific measures have mainly included dust binding with calcium magnesium acetate (CMA) and vacuum cleaning with a Disa-Clean sweeper. The air quality measurements show that the environmental quality standard for PM10 is maintained for the fourth year in a row in Stockholm, which is partly due to operational measures. Additional daytime dust binding could be shown to lower the daily average PM10 concentration by 6%, while blockwise CMA treatment could not be shown to have any clear effect. Road dust load, measured as DL180 (road dust less than 180 μm), tend to have increased slightly compared to the previous season, especially in between the wheel tracks. The repaving of Folkungagatan has resulted in heavily increased dust load levels, but also lower PM10 levels than previous seasons. Evaluation of the possibilities for optimizing dust binding shows that several days with exceedances in autumn are missed, while several days in January are treated with CMA without an actual need to reach the limit value. Higher precision with forecast-based measures is needed to further optimize the efforts.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2018. , p. 74
Series
VTI rapport, ISSN 0347-6030 ; 970
Keywords [en]
Particulate matter, Dust, Dust control, Dust removal, Cleaning, Street, Urban area, Method, Evaluation (assessment), Pollution concentration, Winter, Road traffic
National Category
Environmental Sciences
Research subject
10 Road: Transport, society, policy and planning, 15 Road: Environment
Identifiers
URN: urn:nbn:se:vti:diva-13344OAI: oai:DiVA.org:vti-13344DiVA, id: diva2:1255974
Available from: 2018-10-15 Created: 2018-10-15 Last updated: 2019-06-04Bibliographically approved

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Gustafsson, MatsBlomqvist, GöranJanhäll, SaraJärlskog, IdaLundberg, Joacim

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