Exposure to ultrafine particles while walking or bicycling during COVID-19 closures: A repeated measures study in Copenhagen, Denmark

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Standard

Exposure to ultrafine particles while walking or bicycling during COVID-19 closures : A repeated measures study in Copenhagen, Denmark. / Bergmann, M. L.; Andersen, Z. J.; Amini, H.; Ellermann, T.; Hertel, O.; Lim, Y. H.; Loft, S.; Mehta, A.; Westendorp, R. G.; Cole-Hunter, T.

I: Science of the Total Environment, Bind 791, 148301, 2021.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Bergmann, ML, Andersen, ZJ, Amini, H, Ellermann, T, Hertel, O, Lim, YH, Loft, S, Mehta, A, Westendorp, RG & Cole-Hunter, T 2021, 'Exposure to ultrafine particles while walking or bicycling during COVID-19 closures: A repeated measures study in Copenhagen, Denmark', Science of the Total Environment, bind 791, 148301. https://doi.org/10.1016/j.scitotenv.2021.148301

APA

Bergmann, M. L., Andersen, Z. J., Amini, H., Ellermann, T., Hertel, O., Lim, Y. H., Loft, S., Mehta, A., Westendorp, R. G., & Cole-Hunter, T. (2021). Exposure to ultrafine particles while walking or bicycling during COVID-19 closures: A repeated measures study in Copenhagen, Denmark. Science of the Total Environment, 791, [148301]. https://doi.org/10.1016/j.scitotenv.2021.148301

Vancouver

Bergmann ML, Andersen ZJ, Amini H, Ellermann T, Hertel O, Lim YH o.a. Exposure to ultrafine particles while walking or bicycling during COVID-19 closures: A repeated measures study in Copenhagen, Denmark. Science of the Total Environment. 2021;791. 148301. https://doi.org/10.1016/j.scitotenv.2021.148301

Author

Bergmann, M. L. ; Andersen, Z. J. ; Amini, H. ; Ellermann, T. ; Hertel, O. ; Lim, Y. H. ; Loft, S. ; Mehta, A. ; Westendorp, R. G. ; Cole-Hunter, T. / Exposure to ultrafine particles while walking or bicycling during COVID-19 closures : A repeated measures study in Copenhagen, Denmark. I: Science of the Total Environment. 2021 ; Bind 791.

Bibtex

@article{c7016cc5892442ba92de666fa690dbac,
title = "Exposure to ultrafine particles while walking or bicycling during COVID-19 closures: A repeated measures study in Copenhagen, Denmark",
abstract = "Ultrafine particles (UFP; particulatematterFrom late-March to mid-July 2020, UFP was repeatedly measured while walking or bicycling, capturing local COVID-19 closure (`Phase 0') and subsequent phased re-opening (`Phase 1', '2', '2.1' & '3'). A DiSCmini continuouslymeasured particle number concentration (PNC) in thewalker/bicyclist's breathing zone. PNCwhilewalking or bicycling was compared across phased re-openings, and the effect of ambient temperature, wind speed and direction was determined using regression models.Approximately 40 repeated 20-minute walking and bicycling laps were made over 4 months during societal reopening phases related to the COVID-19 pandemic (late-March to mid-July 2020) in Copenhagen. Highest median PNC exposure of both walking ( 13,170 pt/cm(3), standard deviation (SD): 3560 pt/cm(3)) and bicycling (21,477 pt/cm(3), SD: 8964) was seen during societal closures (Phase 0) and decreased to 5367 pt/cm(3) (SD: 2949) and 8714 pt/cm(3) (SD: 4309) in Phase 3 of re-opening. These reductions in PNC were mainly explained by meteorological conditions, with most of the deviation explained by wind speed (14-22%) and temperature (10-13%). Highest PNC was observed along major roads and intersections.In conclusion, we observed decreases in UFP exposure while walking and bicycling during societal re-opening phases related to the COVID-19 pandemic, due largely to meteorological factors (e.g., wind speed and temperature) and seasonal variations in UFP levels. (C) 2021 The Authors. Published by Elsevier B.V.",
keywords = "Air pollution, Bicycling, COVID-19, Environmental exposure, Ultrafine particles, Walking, AIR-POLLUTION EXPOSURES, PARTICULATE MATTER, PERSONAL EXPOSURE, COMMUTER EXPOSURE, CYCLIST EXPOSURE, CARBON-MONOXIDE, URBAN ROUTES, BLACK CARBON, TRANSPORT, COUNTS",
author = "Bergmann, {M. L.} and Andersen, {Z. J.} and H. Amini and T. Ellermann and O. Hertel and Lim, {Y. H.} and S. Loft and A. Mehta and Westendorp, {R. G.} and T. Cole-Hunter",
year = "2021",
doi = "10.1016/j.scitotenv.2021.148301",
language = "English",
volume = "791",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Exposure to ultrafine particles while walking or bicycling during COVID-19 closures

T2 - A repeated measures study in Copenhagen, Denmark

AU - Bergmann, M. L.

AU - Andersen, Z. J.

AU - Amini, H.

AU - Ellermann, T.

AU - Hertel, O.

AU - Lim, Y. H.

AU - Loft, S.

AU - Mehta, A.

AU - Westendorp, R. G.

AU - Cole-Hunter, T.

PY - 2021

Y1 - 2021

N2 - Ultrafine particles (UFP; particulatematterFrom late-March to mid-July 2020, UFP was repeatedly measured while walking or bicycling, capturing local COVID-19 closure (`Phase 0') and subsequent phased re-opening (`Phase 1', '2', '2.1' & '3'). A DiSCmini continuouslymeasured particle number concentration (PNC) in thewalker/bicyclist's breathing zone. PNCwhilewalking or bicycling was compared across phased re-openings, and the effect of ambient temperature, wind speed and direction was determined using regression models.Approximately 40 repeated 20-minute walking and bicycling laps were made over 4 months during societal reopening phases related to the COVID-19 pandemic (late-March to mid-July 2020) in Copenhagen. Highest median PNC exposure of both walking ( 13,170 pt/cm(3), standard deviation (SD): 3560 pt/cm(3)) and bicycling (21,477 pt/cm(3), SD: 8964) was seen during societal closures (Phase 0) and decreased to 5367 pt/cm(3) (SD: 2949) and 8714 pt/cm(3) (SD: 4309) in Phase 3 of re-opening. These reductions in PNC were mainly explained by meteorological conditions, with most of the deviation explained by wind speed (14-22%) and temperature (10-13%). Highest PNC was observed along major roads and intersections.In conclusion, we observed decreases in UFP exposure while walking and bicycling during societal re-opening phases related to the COVID-19 pandemic, due largely to meteorological factors (e.g., wind speed and temperature) and seasonal variations in UFP levels. (C) 2021 The Authors. Published by Elsevier B.V.

AB - Ultrafine particles (UFP; particulatematterFrom late-March to mid-July 2020, UFP was repeatedly measured while walking or bicycling, capturing local COVID-19 closure (`Phase 0') and subsequent phased re-opening (`Phase 1', '2', '2.1' & '3'). A DiSCmini continuouslymeasured particle number concentration (PNC) in thewalker/bicyclist's breathing zone. PNCwhilewalking or bicycling was compared across phased re-openings, and the effect of ambient temperature, wind speed and direction was determined using regression models.Approximately 40 repeated 20-minute walking and bicycling laps were made over 4 months during societal reopening phases related to the COVID-19 pandemic (late-March to mid-July 2020) in Copenhagen. Highest median PNC exposure of both walking ( 13,170 pt/cm(3), standard deviation (SD): 3560 pt/cm(3)) and bicycling (21,477 pt/cm(3), SD: 8964) was seen during societal closures (Phase 0) and decreased to 5367 pt/cm(3) (SD: 2949) and 8714 pt/cm(3) (SD: 4309) in Phase 3 of re-opening. These reductions in PNC were mainly explained by meteorological conditions, with most of the deviation explained by wind speed (14-22%) and temperature (10-13%). Highest PNC was observed along major roads and intersections.In conclusion, we observed decreases in UFP exposure while walking and bicycling during societal re-opening phases related to the COVID-19 pandemic, due largely to meteorological factors (e.g., wind speed and temperature) and seasonal variations in UFP levels. (C) 2021 The Authors. Published by Elsevier B.V.

KW - Air pollution

KW - Bicycling

KW - COVID-19

KW - Environmental exposure

KW - Ultrafine particles

KW - Walking

KW - AIR-POLLUTION EXPOSURES

KW - PARTICULATE MATTER

KW - PERSONAL EXPOSURE

KW - COMMUTER EXPOSURE

KW - CYCLIST EXPOSURE

KW - CARBON-MONOXIDE

KW - URBAN ROUTES

KW - BLACK CARBON

KW - TRANSPORT

KW - COUNTS

U2 - 10.1016/j.scitotenv.2021.148301

DO - 10.1016/j.scitotenv.2021.148301

M3 - Journal article

C2 - 34412377

VL - 791

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 148301

ER -

ID: 276610263