umu.sePublications
Change search
Link to record
Permanent link

Direct link
BETA
Hagenbjörk-Gustavsson, Annika
Alternative names
Publications (10 of 20) Show all publications
Hagenbjörk, A. (2019). Kvävedioxid- och kväveoxidhalter i Umeå: Sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2018. Umeå: Institutionen för folkhälsa och klinisk medicin, Umeå universitet
Open this publication in new window or tab >>Kvävedioxid- och kväveoxidhalter i Umeå: Sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2018
2019 (Swedish)Report (Other academic)
Abstract [sv]

Mätning av kvävedioxid (NO2) och kväveoxider (NOx) har utförts med diffusionsprovtagare vid två tillfällen (sommartid respektive vintertid) på 41 platser i Umeå tätort under 2018. Två veckomätningar har gjorts varje år på dessa platser sedan 2009 och totalt nitton mätningar har utförts på samma sätt över åren. Mätplatsernas geografiska läge kan ha varierat något över tid, provtagare har ibland plockats ned av förbipasserande varför alla mätplatser inte har maximalt antal mätningar. Det finns 25 mätplatser där mätningar har gjorts vid alla sjutton tillfällen.De högsta halterna har uppmätts på trafikerade platser under vinterhalvåret p.g.a. större utsläpp och stillastående luft, s.k. inversion. Vid mätningarna 2018 uppmättes de högsta halterna NO2 både sommartid och vintertid vid en husfasad belägen på Västra Esplanaden, centralt i Umeå (22 μg/m3 respektive 54 μg/m3). NOx-halten sommartid var högst vid samma mätpunkt på Västra Esplanaden (54 μg/m3) medan halten vid vintermätningen var högst vid mätvagnen vid Västra Esplanaden (158 μg/m3).

Place, publisher, year, edition, pages
Umeå: Institutionen för folkhälsa och klinisk medicin, Umeå universitet, 2019. p. 17
Series
Folkhälsa och klinisk medicin i Umeå rapporterar, E-ISSN 2003-3281 ; 1/2019
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-162796 (URN)
Available from: 2019-08-28 Created: 2019-08-28 Last updated: 2019-09-20Bibliographically approved
Andersson, M., Backman, H., Nordberg, G., Hagenbjörk, A., Hedman, L., Eriksson, K., . . . Rönmark, E. (2018). Early life swimming pool exposure and asthma onset in children: a case-control study. Environmental health, 17, Article ID 34.
Open this publication in new window or tab >>Early life swimming pool exposure and asthma onset in children: a case-control study
Show others...
2018 (English)In: Environmental health, ISSN 1476-069X, E-ISSN 1476-069X, Vol. 17, article id 34Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Trichloramine exposure in indoor swimming pools has been suggested to cause asthma in children. We aimed to investigate the risk of asthma onset among children in relation to individual trichloramine exposure.

METHODS: A longitudinal nested case-control study of 337 children with asthma (cases) and 633 controls aged 16-17 years was performed within a population-based cohort from The Obstructive Lung Disease in Northern Sweden studies (OLIN). Year of asthma onset and exposure time at different ages were obtained in telephone interviews. Trichloramine concentrations in the pool buildings were measured. Skin prick test results for inhalant allergens were available from previous examinations of the cohort. The risk for asthma was analyzed in relation to the cumulative trichloramine exposure before onset of asthma.

RESULTS: Swimming pool exposure in early life was associated with a significantly higher risk of pre-school asthma onset. A dose-response relationship between swimming pool exposure and asthma was indicated in children with asthma onset at 1 year of age. Children who were both sensitized and exposed had a particularly high risk.

CONCLUSIONS: Early life exposure to chlorinated swimming pool environments was associated with pre-school asthma onset.

Place, publisher, year, edition, pages
BioMed Central, 2018
Keywords
Asthma, Children, Swimming, Trichloramine
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-146654 (URN)10.1186/s12940-018-0383-0 (DOI)000429733700001 ()29642932 (PubMedID)
Available from: 2018-04-16 Created: 2018-04-16 Last updated: 2018-06-09Bibliographically approved
Hagenbjörk, A. (2018). Kväveoxid-och kvävedioxidhalter i Umeå: sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2017. Umeå: Umeå universitet
Open this publication in new window or tab >>Kväveoxid-och kvävedioxidhalter i Umeå: sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2017
2018 (Swedish)Report (Other academic)
Abstract [sv]

Mätning av kvävedioxid (NO2) och kväveoxider (NOx) har utförts med diffusionsprovtagare vid två tillfällen (sommartid respektive vintertid) på 41 platser i Umeå tätort under 2017. Två veckomätningar har gjorts varje år på dessa platser sedan 2009 och totalt sjutton mätningar har utförts på samma sätt över åren. Mätplatsernas geografiska läge kan ha varierat något över tid, provtagare har ibland plockats ned av förbipasserande varför alla mätplatser inte har maximalt antal mätningar. Det finns 25 mätplatser där mätningar har gjorts vid alla sjutton tillfällen.

De högsta halterna har uppmätts på trafikerade platser under vinterhalvåret p.g.a. större utsläpp och stillastående luft, s.k. inversion. Vid mätningarna 2017 uppmättes de högsta halterna NO2 både sommartid och vintertid vid en husfasad belägen på Västra Esplanaden, centralt i Umeå (21 μg/m3 respektive 51 μg/m3). NOx-halten vintertid var högst vid samma mätpunkt på Västra Esplanaden (134 μg/m3) medan halten vid sommarmätningen var högst vid Östra Kyrkogatan, mittemot simhallen Navet (56 μg/m3).

Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2018. p. 17
Series
Yrkes- och miljömedicin rapporterar, ISSN 1654-7314 ; Nr 1/2018
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-145103 (URN)
Available from: 2018-02-21 Created: 2018-02-21 Last updated: 2018-06-09Bibliographically approved
Hagenbjörk, A. (2017). Kvävedioxid- och kväveoxidhalter i Umeå: sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2016. Umeå: Yrkes- och miljömedicin, Umeå universitet
Open this publication in new window or tab >>Kvävedioxid- och kväveoxidhalter i Umeå: sammanställning av mätningar gjorda med diffusionsprovtagare mellan november 2009 och december 2016
2017 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Umeå: Yrkes- och miljömedicin, Umeå universitet, 2017. p. 12
Series
Yrkes- och miljömedicin i Umeå rapporterar, ISSN 1654-7314 ; Nr 1/2018
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-135188 (URN)
Available from: 2017-05-22 Created: 2017-05-22 Last updated: 2018-06-09Bibliographically approved
Hagenbjörk, A., Malmqvist, E., Mattisson, K., Sommar, N. J. & Modig, L. (2017). The spatial variation of O3, NO, NO2 and NOx and the relation between them in two Swedish cities. Environmental Monitoring & Assessment, 189(4), Article ID UNSP 161.
Open this publication in new window or tab >>The spatial variation of O3, NO, NO2 and NOx and the relation between them in two Swedish cities
Show others...
2017 (English)In: Environmental Monitoring & Assessment, ISSN 0167-6369, E-ISSN 1573-2959, Vol. 189, no 4, article id UNSP 161Article in journal (Refereed) Published
Abstract [en]

Ozone and nitrogen oxides (NO x ) are air pollutants with known associations to adverse health effects on humans. Few studies have simultaneously measured ozone and nitrogen oxides with high spatial resolution. The main aim of this paper was to assess the levels and variation of ground-level ozone, NO2 and NO x in two Swedish cities. An additional aim was to describe the levels of these pollutants within and between three different types of measurement sites (regional background, urban background and traffic sites) and within and between different measurement periods of the year. Three weekly sampling campaigns of NO x and ozone were conducted simultaneously at 20 sites in two Swedish regions using Ogawa badges. Ozone was measured at 20 additional sites in each area. The median ozone concentration for all measurements was statistically significantly higher in Malmö (67 μg/m(3)) compared to Umeå (56 μg/m(3)), and in both cities, ozone levels were highest in April. Measurement period was a more important factor for describing the variation in ozone concentrations than the type of measurement site. The levels of NO2 and NO x were statistically significantly higher in the Malmö area (8.1 and 12 μg/m(3)) compared to the Umeå area (4.5 and 8.9 μg/m(3)). The levels were generally highest at the sites categorized as traffic, while the variability between different seasons was sparse.

Keywords
Determinants of exposure, Diffusive sampler, Measurements, Nitrogen oxides, Ozone, Spatial variation
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-132584 (URN)10.1007/s10661-017-5872-z (DOI)000398714200027 ()28290139 (PubMedID)
Available from: 2017-03-17 Created: 2017-03-17 Last updated: 2018-06-09Bibliographically approved
Malmqvist, E., Olsson, D., Hagenbjörk-Gustafsson, A., Forsberg, B., Mattisson, K., Stroh, E., . . . Modig, L. (2014). Assessing ozone exposure for epidemiological studies in Malmö and Umeå, Sweden. Atmospheric Environment, 94, 241-248
Open this publication in new window or tab >>Assessing ozone exposure for epidemiological studies in Malmö and Umeå, Sweden
Show others...
2014 (English)In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 94, p. 241-248Article in journal (Refereed) Published
Abstract [en]

Ground level ozone [ozone] is considered a harmful air pollutant but there is a knowledge gap regarding its long term health effects. The main aim of this study is to develop local Land Use Regression [LUR] models that can be used to study long term health effects of ozone. The specific aim is to develop spatial LUR models for two Swedish cities, Umea and Malmo, as well as a temporal model for Malmo in order to assess ozone exposure for long term epidemiological studies. For the spatial model we measured ozone, using Ogawa passive samplers, as weekly averages at 40 sites in each study area, during three seasons. This data was then inserted in the LUR-model with data on traffic, land use, population density and altitude to develop explanatory models of ozone variation. To develop the temporal model for Malmo, hourly ozone data was aggregated into daily means for two measurement stations in Malmo and one in a rural area outside Malmo. Using regression analyses we inserted meteorological variables into different temporal models and the one that performed best for all three stations was chosen. For Malmo the LUR-model had an adjusted model R-2 of 0.40 and cross validation R-2 of 0.17. For Umea the model had an adjusted model R-2 of 0.67 and cross validation adjusted R-2 of 0.48. When restricting the model to only including measuring sites from urban areas, the Malmo model had adjusted model R-2 of 0.51 (cross validation adjusted R-2 0.33) and the Umea model had adjusted model R-2 of 0.81 (validation adjusted R-2 of 0.73). The temporal model had adjusted model R-2 0.54 and 0.61 for the two Malmo sites, the cross validation adjusted R-2 was 0.42. In conclusion, we can with moderate accuracy, at least for Umea, predict the spatial variability, and in Malmo the temporal variability in ozone variation. 

Place, publisher, year, edition, pages
Elsevier, 2014
Keywords
Land use regression, Ozone, Air pollution modelling, Epidemiology, Risk assessment
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
urn:nbn:se:umu:diva-92898 (URN)10.1016/j.atmosenv.2014.05.038 (DOI)000340316300027 ()881251 (Local ID)881251 (Archive number)881251 (OAI)
Available from: 2014-09-15 Created: 2014-09-09 Last updated: 2019-02-15Bibliographically approved
Hagenbjörk-Gustafsson, A., Tornevi, A., Andersson, E. M., Johannesson, S., Bellander, T., Merritt, A.-S., . . . Sallsten, G. (2014). Determinants of personal exposure to some carcinogenic substances and nitrogen dioxide among the general population in five Swedish cities. Journal of Exposure Science and Environmental Epidemiology, 24(4), 437-443
Open this publication in new window or tab >>Determinants of personal exposure to some carcinogenic substances and nitrogen dioxide among the general population in five Swedish cities
Show others...
2014 (English)In: Journal of Exposure Science and Environmental Epidemiology, ISSN 1559-0631, E-ISSN 1559-064X, Vol. 24, no 4, p. 437-443Article in journal (Refereed) Published
Abstract [en]

Environmental levels of airborne carcinogenic and related substances are comparatively better known than individual exposure and its determinants. We report on a personal monitoring program involving five Swedish urban populations. The aim of the program was to investigate personal exposure to benzene, 1,3-butadiene, formaldehyde, and nitrogen dioxide (NO2). The measurements were performed among 40 inhabitants during seven consecutive days, in one urban area each year, during 2000-2008. The estimated population exposure levels were 1.95 μg/m(3) for benzene, 0.56 μg/m(3) for 1,3-butadiene, 19.4 μg/m(3) for formaldehyde, and 14.1 μg/m(3) for NO2. Statistical analysis using a mixed-effects model revealed that time spent in traffic and time outdoors contributed to benzene and 1,3- butadiene exposure. For benzene, refueling a car was an additional determinant influencing the exposure level. Smoking or environmental tobacco smoke were significant determinants of exposure to NO2, benzene, and 1,3-butadiene. Those with a gas stove had higher NO2 exposure. Living in a single-family house increased the exposure to formaldehyde significantly. In a variance component model, the between-subject variance dominated for 1,3-butadiene and formaldehyde, whereas the between-city variance dominated for NO2. For benzene, the between-subject and between-cities variances were similar.

Place, publisher, year, edition, pages
Nature Publishing Group, 2014
Keywords
personal exposure, benzene, 1.3-butadiene, nitrogen dioxide, formaldehyde, mixed models
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-80994 (URN)10.1038/jes.2013.57 (DOI)000337651800013 ()24064531 (PubMedID)
Available from: 2013-09-30 Created: 2013-09-30 Last updated: 2018-06-08Bibliographically approved
Hagenbjörk-Gustavsson, A., Modig, L. & Forsberg, B. (2014). Hälsorelaterad miljöövervakning. Cancerframkallande ämnen i tätortsluft: personlig exponering och bakgrundsmätningar i Umeå 2013. Umeå: Umeå universitet
Open this publication in new window or tab >>Hälsorelaterad miljöövervakning. Cancerframkallande ämnen i tätortsluft: personlig exponering och bakgrundsmätningar i Umeå 2013
2014 (Swedish)Report (Other academic)
Abstract [sv]

Undersökningen kartlägger allmänbefolkningens exponering via luften för vissa cancerframkallande ämnen (bensen, 1,3-butadien, formaldehyd) och kvävedioxid. Undersökningen genomfördes i centrala Umeå under hösten 2013, och inkluderade totalt 40 slumpvis utvalda personer i åldrarna 20-50 år.

Mätningarna upprepades på 20 personer. Utöver de personburna mätningarna genomfördes även stationära mätningar på två platser utomhus, samt för partiklar även inomhus hos 20 deltagare. Deltagarfrekvensen var 66% och medelåldern var 35 år. Den personliga medianhalten för bensen och 1,3-butadien var 1,4 μg/m3 respektive 0,2 μg/m3 vilket är något lägre än halterna år 2001. Bensenhalten överskrider lågrisknivån (1,3 μg/m3), medan halten 1,3-butadien ligger i nedre kanten av lågriskintervallet. Det fanns en signifikant korrelation mellan den personliga exponeringen för bensen och 1,3-butadien (rs=0.50, p=<0.01). Medianhalten för formaldehyd var 12 μg/m3, och halterna var högre bland de som bodde i villa jämfört med lägenhet. Medianhalten kvävedioxid var 12 μg/m3. PM2.5 mättes utomhus i urban bakgrund samt hemma hos deltagare under två dygn. Medianvärdet för inomhusmätningarna av PM2.5 var högre än motsvarande halt vid mätningarna 2007 (1,9 μg/m3). PM2,5 filtren analyserades även på sitt innehåll av polycykliska kolväten och halterna inomhus var lägre jämfört med halterna utomhus, och var klart lägre än den fastställda lågrisknivån.

Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2014. p. 38
Series
Yrkes- och miljömedicin i Umeå rapporterar, ISSN 1654-7314 ; 2014:2
Keywords
Cancerframkallande ämnen i tätortsluft, luftföroreningar, personburen mätning, stationär mätning, bensen, kvävedioxid, 1, 3-butadien, formaldehyd, partiklar (PM2.5), polycykliska aromatiska kolväten
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-102796 (URN)
Available from: 2015-05-05 Created: 2015-05-05 Last updated: 2018-06-07Bibliographically approved
Hagenbjörk-Gustafsson, A. (2014). Validation of diffusive samplers for nitrogen oxides and applications in various environments. (Doctoral dissertation). Umeå: Umeå universitet
Open this publication in new window or tab >>Validation of diffusive samplers for nitrogen oxides and applications in various environments
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The overall aim of this thesis was to validate diffusive samplers for measurements of nitrogen dioxide (NO2) and nitrogen oxides (NOx). The Willems badge was validated for NO2 measurements both in laboratory tests and in field tests (Paper I-II). The sampling rate was 40.0 mL/min for ambient air concentrations and 46.0 mL/min for higher concentrations. No effects of different factors on sampling rate were found except for a reduced sampling rate at low wind velocity. The results of the laboratory validation were confirmed in field tests in ambient air and with personal sampling. The correlation between diffusive samplers and the reference monitor was good for ambient measurements. In conclusion, the Willems badge performs well at wind velocities down to 0.3 m/s, and this makes it suitable for personal sampling but less suitable for measurements in indoor air where the wind velocity is lower. Paper III reports about the field validation of the Ogawa diffusive samplers. Absolute humidity and temperature were found to have the strongest effect on sampling rate with lower uptake rates at low absolute humidity or temperature. The sampling rates above 0 °C were 8.6 mL/min for NO2 and 9.9 mL/min for NOx. NO2 and NOx concentrations that were determined using the manufacturer’s protocol were either underestimated or overestimated. The agreement between concentrations measured by the Ogawa sampler and the reference monitor was improved when field-determined sampling rates were used to calculate concentrations. Paper IV is based on a study with the aim of assessing the exposure of the Swedish general population to NO2 and some carcinogenic substances. The surveys were performed in one of five Swedish cities every year. In each survey, personal measurements of NO2 and some carcinogenic substances were conducted on 40 randomly selected individuals. In the study presented in this thesis, the NO2 part of the study is in focus and results were available for eight surveys conducted across the five cities. The estimated arithmetic mean concentration for the general Swedish population was 14.1 μg/m3. The exposure level for NO2 was higher for smokers compared with non-smokers, and the NO2 exposure levels were higher for people who had gas stoves at home or who were exposed at their workplace. The exposure was lower for those who had oil heating in their houses.

Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2014. p. 67
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 1685
Keywords
Nitrogen dioxide, NOx, diffusive sampling, validation, vehicle exhaust, exposure measurement
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-95757 (URN)978-91-7601-144-7 (ISBN)
Public defence
2014-11-28, Hörsal B Unod T 9, Norrlands universitetssjukhus, Umeå, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2014-11-07 Created: 2014-11-05 Last updated: 2018-06-07Bibliographically approved
Hagenbjörk Gustafsson, A. (2012). Jämförande mätning av ozon utomhus med Ogawa diffusionsprovtagare och referensmetoden UV-fotometri. Umeå: Umeå universitet
Open this publication in new window or tab >>Jämförande mätning av ozon utomhus med Ogawa diffusionsprovtagare och referensmetoden UV-fotometri
2012 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2012. p. 9
Series
Yrkes- och miljömedicin i Umeå rapporterar, ISSN 1654-7314 ; 2
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:umu:diva-54454 (URN)
Available from: 2012-04-26 Created: 2012-04-26 Last updated: 2018-06-08Bibliographically approved
Organisations

Search in DiVA

Show all publications