Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Monitoring microplastics in Örebro, Sweden – Characterization of stormwater and wastewater
Executive, Universitet, Örebro universitet.
Executive, Universitet, Örebro universitet.
Executive, Universitet, Örebro universitet.
Executive, Universitet, Örebro universitet.
Responsible organisation
2019 (English)Report (Other academic)
Abstract [en]

Three to five replicate samples of surface water and treated wastewater were processed at seven locations in Örebro between September and November 2019. The levels of microplastics >300 µm, excluding fibers, in surface water varied between 0 - 15 MP/m' (0-10 µg/L), and 32-159 Mp/m' (2-20 µg/L) in treated wastewater. Örebro city contributed with more than 90% to the microplastics discharged into lake Hjälmaren via Svartån. Precipitation and flow varied <luring the sampling period, and high recordings were associated with both high and low concentrations of microplastics depending on the sampling location. Calculations of the yearly load of microplastics from treated wastewater and stormwater indicated that the STP contributed with up to four times more to the total load. However, it was recognized that the uncertainty in the data was high and that more samples were needed for a more solid conclusion.

 Visual characterization was performed to obtain a detailed level of classification to aid in identifying source contributions of microplastics. However, the relatively low number of microplastics, in combination with variations in levels and types of microplastics between the replicate samples, made it difficult to appoint and quantify sources. Primary microplastics in different colours and in the shape of spheres made up 4%, and non­spherical semitransparent primary microplastics made up 44%, of the total number of MP particles from the STP. Films made up a larger part of microplastics in stormwater recipients compared to in effluent from the STP, which were attributed to littering being an important source of this microplastic type. Artificial turfs were estimated to contribute with 3-7 % of the microplastics in stormwater in the form of green polyethylene straws. 

Place, publisher, year, edition, pages
Örebro, 2019. , p. 43
Keywords [en]
Microplatstic, monitoring, sewage treatment plant (STP) effluent, stormwaer, surface water, wastewater
Keywords [sv]
Dagvatten, mikroplats, miljöövervakning, reningsverk, spillvatten
National Category
Environmental Sciences
Research subject
Toxic, Screening; Miljöövervakning, Toxic; Finance, National; Miljöövervakning; Environmental Objectives, Flourishing Lakes and Streams; Environmental Objectives; Environmental Objectives, A Balanced Marine Environ­ment, Flourishing Coastal Areas and Archipelagos; Environmental Objectives, A Non-Toxic Environment
Identifiers
URN: urn:nbn:se:naturvardsverket:diva-8548OAI: oai:DiVA.org:naturvardsverket-8548DiVA, id: diva2:1526460
Available from: 2021-02-08 Created: 2021-02-08 Last updated: 2021-02-09

Open Access in DiVA

fulltext(46243 kB)148 downloads
File information
File name FULLTEXT01.pdfFile size 46243 kBChecksum SHA-512
11b95a4a8d1535374728614a201032582afdeb31437d00432f94fdd06a25c9429ee1b1619759199668ad580f0556191a2e141bb965872a7464bdc726dd6909b0
Type fulltextMimetype application/pdf

By organisation
Örebro universitet
Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 150 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 476 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf