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Driftåtgärder mot PM10 i Stockholm: utvärdering av vintersäsongen 2017–2018
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.
Stockholms universitet. Institutionen för miljövetenskap och analytisk kemi.ORCID iD: 0000-0002-8459-9852
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2019 (Swedish)Report (Other academic)Alternative title
Operational measures against PM10 pollution in Stockholm : evaluation of winter season 2017–2018 (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). Innevarande säsong har vakuumsugen dock inte använts. Luftkvalitetsmätningarna visar att miljökvalitetsnormen för PM10 klaras för femte året i Stockholm, men halterna är högre än föregående år. Vägdammsmängderna mätt som DL180 (vägdamm mindre än 180 μm) har generellt ökat vilket varit utvecklingen sedan säsongen 2014–2015. Folkungagatan, som fick en ny beläggning 2016, har fortsatt höga vägdammsmängder, men också lägre PM10-halter än före beläggningsbytet. Utvärderingen av möjligheterna att optimera dammbindningen visar att CMA ofta läggs ut trots att PM10-halterna inte skulle överskridits. Maj var särskilt torr och flera överskridanden kunde då ha förhindrats med CMA, men åtgärden avslutas sista april på grund av risk för halka. Högre precision med till exempel prognosbaserade åtgärder skulle sannolikt vara gynnsamt för optimering av insatserna.

Abstract [en]

The City of Stockholm has been working since 2011 on reducing, through improved and specific street operations, the suspension of road dust to the air. Since the start, the effects on both dust storage and air quality have been followed up by VTI and SLB-analys. Specific measures have included mainly dust binding with calcium magnesium acetate (CMA) and vacuum cleaning (Disa-Clean). However, the vacuum sweeper has not been used this season. The air quality measurements show that the environmental quality standard for PM10 is met for the fifth year in Stockholm, but the levels are higher than the previous year. Road dust loads measured as DL180 (road dust less than 180 μm) have generally increased, which has been the development since the 2014–2015 season. The Folkungagatan, which had a new pavement in 2016, still has high road dust volumes, but also lower PM10 levels than before the pavement change. The evaluation of the possibilities of optimizing the dust binding shows that CMA is often used even though the PM10 levels were not at risk to be exceeded. May was particularly dry and several PM10 exceedances could then have been prevented with CMA, but the measure ends in April due to risk of low friction. Higher precision with, for example, forecast-based measures would probably be beneficial for optimizing the efforts.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2019. , p. 65
Series
VTI rapport, ISSN 0347-6030 ; 1000
Keywords [en]
Particulate matter, Dust, Dust control, Method, Pollution concentration, Winter, Urban area, Street, Maintenance
National Category
Other Medical Sciences
Research subject
10 Road: Transport, society, policy and planning, 15 Road: Environment; 70 Road: Maintenance
Identifiers
URN: urn:nbn:se:vti:diva-13579OAI: oai:DiVA.org:vti-13579DiVA, id: diva2:1287718
Available from: 2019-02-11 Created: 2019-02-11 Last updated: 2019-06-11Bibliographically approved

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Gustafsson, MatsBlomqvist, GöranJärlskog, IdaLundberg, Joacim

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