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Landström, Ulf
Publications (10 of 16) Show all publications
Sjödin, F., Kjellberg, A., Knutsson, A., Landström, U. & Lindberg, L. (2014). Measures against preschool noise and its adverse effects on the personnel: an intervention study. International Archives of Occupational and Environmental Health, 87(1), 95-110
Open this publication in new window or tab >>Measures against preschool noise and its adverse effects on the personnel: an intervention study
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2014 (English)In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246, Vol. 87, no 1, p. 95-110Article in journal (Refereed) Published
Abstract [en]

The aim of the study was to analyze the exposure effects of different types of noise measures carried out at preschools. The project was carried out as an intervention study. The investigation included 89 employees at 17 preschools in the northern part of Sweden. Individual noise recordings and recordings in dining rooms and play halls were made at two departments in each preschool. The adverse effects on the employees were analyzed with validated questionnaires and saliva cortisol samples. Evaluations were made before and 1 year after the first measurement. Between the two measurements, measures were taken to improve the sound environments at the preschools. The effects of the measures varied a lot, with respect to both the sound environments and health. Regarding acoustical measures, significant changes were seen for some of the variables analyzed. For most of the tested effects, the changes, however, were very small and non-significant. The effects of organizational measures on the objective and subjective noise values were in overall less pronounced. Acoustical measures improved the subjectively rated sound environment more than organizational measures. This may be due to the high work effort needed to implement organizational measures. Even though the sound level was not lower, the personnel experienced improvements of the sound environment.

Keywords
Noise, Measures, Stress, Health, Occupational environment, Intervention
National Category
Psychology Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-18395 (URN)10.1007/s00420-012-0833-x (DOI)000329233900010 ()2-s2.0-84892673202 (Scopus ID)
Available from: 2014-12-10 Created: 2014-12-10 Last updated: 2018-03-13Bibliographically approved
Hygge, S., Kjellberg, A. & Landström, U. (2013). Störande buller i arbetslivet: Kunskapssammanställning.
Open this publication in new window or tab >>Störande buller i arbetslivet: Kunskapssammanställning
2013 (Swedish)Report (Other academic)
Publisher
p. 56
Series
Arbetsmiljöverket Rapport 2013, ISSN 1650-3171 ; 3
National Category
Applied Psychology
Identifiers
urn:nbn:se:hig:diva-15066 (URN)
Available from: 2013-08-23 Created: 2013-08-23 Last updated: 2018-03-13Bibliographically approved
Sjödin, F., Landström, U., Kjellberg, A., Lindberg, L. & Knutsson, A. (2012). Minimizing speech contribution using different microphone noise dosimeter positions. In: Peter Juhl (Ed.), Proceedings of BNAM 2012. Paper presented at BNAM2012 Baltic Nordic Acoustics Meeting 18-20 June, Odense Denmark.
Open this publication in new window or tab >>Minimizing speech contribution using different microphone noise dosimeter positions
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2012 (English)In: Proceedings of BNAM 2012 / [ed] Peter Juhl, 2012Conference paper, Published paper (Other academic)
Abstract [en]

Use of noise dosimeter recordings in low sound level environments is often problematic due to the voicecontribution from the carrier. The aim of the study was to find a microphone position with low speechcontribution while still providing an accurate sound level recording. An experiment with differentmicrophone positions was conducted in a low sound reverberation room. Two types of noise dosimeterswere used (Brüel & Kjaer 4445 and Larson Davis Spark 706-Atex). In repeated measurements the carrierwas instructed to read a text chapter during 60 seconds and at a speech of level about 60 dB(A), acquiredby practice, with different background noise and noise levels. White noise and preschool noise was usedat sound levels 50, 60, 70 and 80 dB(A). The voice contribution to the background noise level was thenmeasured. Three microphone positions were tested; on the shoulder, above the ear and on the back of thehead. The position with the microphone placed behind the head of the carrier had the lowest speechcontribution, less than 2 dB(A) to the background noise at 70 dB(A). This compared to positions rightabove the ear 6 dB(A and on the shoulder 12 dB(A).

Series
Baltic Nordic Acoustics Meeting, ISSN 2245-4365
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-12967 (URN)978-87-995400-0-6 (ISBN)
Conference
BNAM2012 Baltic Nordic Acoustics Meeting 18-20 June, Odense Denmark
Available from: 2012-09-19 Created: 2012-09-19 Last updated: 2018-03-13Bibliographically approved
Sjödin, F., Kjellberg, A., Knutsson, A., Landström, U. & Lindberg, L. (2012). Noise and stress effects on preschool personnel. Noise & Health, 14(59), 166-78
Open this publication in new window or tab >>Noise and stress effects on preschool personnel
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2012 (English)In: Noise & Health, ISSN 1463-1741, E-ISSN 1998-4030, Vol. 14, no 59, p. 166-78Article in journal (Refereed) Published
Abstract [en]

The aim of the study was to analyze the presence of stress-related health problems among preschool employees and the way in which these reactions are related to noise and other work parameters. The investigation included 101 employees at 17 preschools in Umeå County, located in northern Sweden. Individual noise recordings and recordings in dining rooms and play halls were made at two departments from each preschool. The adverse effects on the employees were analyzed by use of different validated questionnaires and by saliva cortisol samples. Stress and energy output were pronounced among the employees, and about 30% of the staff experienced strong burnout syndromes. Mental recovery after work was low, indicated by remaining high levels of stress after work. The burnout symptoms were associated with reduced sleep quality and morning sleepiness. Cortisol levels supported the conclusion about pronounced daily stress levels of the preschool employees.

National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-12966 (URN)10.4103/1463-1741.99892 (DOI)000308866400006 ()22918147 (PubMedID)2-s2.0-84866705721 (Scopus ID)
Available from: 2012-09-19 Created: 2012-09-19 Last updated: 2018-03-13Bibliographically approved
Sjödin, F., Kjellberg, A., Knutsson, A., Landström, U. & Lindberg, L. (2012). Noise exposure and auditory effects on preschool personnel. Noise & Health, 14(57), 72-82
Open this publication in new window or tab >>Noise exposure and auditory effects on preschool personnel
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2012 (English)In: Noise & Health, ISSN 1463-1741, E-ISSN 1998-4030, Vol. 14, no 57, p. 72-82Article in journal (Refereed) Published
Abstract [en]

Hearing impairments and tinnitus are being reported in an increasing extent from employees in the preschool. The investigation included 101 employees at 17 preschools in Umeå county, Sweden. Individual noise recordings and stationary recordings in dining rooms and play halls were conducted at two departments per preschool. The effects of noise exposures were carried out through audiometric screenings and by use of questionnaires. The average individual noise exposure was close to 71 dB(A), with individual differences but small differences between the preschools. The noise levels in the dining room and playing halls were about 64 dB(A), with small differences between the investigated types of rooms and preschools. The hearing loss of the employees was significantly higher for the frequencies tested when compared with an unexposed control group in Sweden. Symptoms of tinnitus were reported among about 31% of the employees. Annoyance was rated as somewhat to very annoying. The voices of the children were the most annoying noise source. The dB(A) level and fluctuation of the noise exposure were significantly correlated to the number of children per department. The preschool sound environment is complex and our findings indicate that the sound environment is hazardous regarding auditory disorders. The fluctuation of the noise is of special interest for further research.

National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-12965 (URN)10.4103/1463-1741.95135 (DOI)000303332900005 ()22517307 (PubMedID)2-s2.0-84860441403 (Scopus ID)
Available from: 2012-09-19 Created: 2012-09-19 Last updated: 2018-03-13Bibliographically approved
Sjödin, F., Landström, U., Kjellberg, A., Lindberg, L. & Knutsson, A. (2012). Tinnitus, noise and health effects in preschool environments. In: Peter Juhl (Ed.), Proceedings of BNAM 2012. Paper presented at BNAM2012 Baltic Nordic Acoustics Meeting 18-20 June, Odense Denmark.
Open this publication in new window or tab >>Tinnitus, noise and health effects in preschool environments
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2012 (English)In: Proceedings of BNAM 2012 / [ed] Peter Juhl, 2012Conference paper, Published paper (Other academic)
Abstract [en]

The study included 93 employees at 17 preschools in the county of Umeå located in northern part ofSweden. Personal daily noise dosimeter recordings were made at five representative work days.Stationary noise recordings were made during the same days at two departments of each preschool, in theplaying halls and in the dining rooms. Besides audiometric tests, the employees rated their experiences ofthe noise, hearing and tinnitus as well as well as different health effects, on validated questionnaires.Tinnitus was reported among 31 per cent of the participants. The study group was dichotomized intoemployees with or without tinnitus. Employees with tinnitus reported higher prevalence of subjectivehearing loss, higher experiences of elevated sound levels at work, anxiety of the noise at work, chestpressure/pain, burn out symptoms, depression and reduced sleep quality. Significant differences wereseen for shoulder tension/pain. No group differences were seen for the objective personal or stationarynoise measures or the number of children present at the department. The results of the study are discussedin terms of underlying causes and the way in which the symptom interfere with experiences and healtheffects of the employees.

Series
Baltic Nordic Acoustics Meeting, ISSN 2245-4365
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-12968 (URN)978-87-995400-0-6 (ISBN)
Conference
BNAM2012 Baltic Nordic Acoustics Meeting 18-20 June, Odense Denmark
Available from: 2012-09-19 Created: 2012-09-19 Last updated: 2018-03-13Bibliographically approved
Landström, U. (2010). Buller (3ed.). In: Christer Edling, Gunnar Nordberg, Monica Nordberg (Ed.), Arbets- och Miljömedicin: En lärobok om hälsa och miljö (pp. 221-233). Lund: Studentlitteratur
Open this publication in new window or tab >>Buller
2010 (Swedish)In: Arbets- och Miljömedicin: En lärobok om hälsa och miljö / [ed] Christer Edling, Gunnar Nordberg, Monica Nordberg, Lund: Studentlitteratur , 2010, 3, p. 221-233Chapter in book (Refereed)
Place, publisher, year, edition, pages
Lund: Studentlitteratur, 2010 Edition: 3
Keywords
Arbetsliv, buller, omgivningsbuller
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:hig:diva-10546 (URN)978-91-44-05399-8 (ISBN)
Available from: 2011-09-29 Created: 2011-09-29 Last updated: 2018-03-13Bibliographically approved
Arlinger, S., Hagerman, B., Kjellberg, A., Kähäri, K., Landström, U. & Poulsen, T. (2009). Musik och höga ljudnivåer: praktiska riktlinjer för musik- och underhållningsbranschen. Stockholm: Arbetsmiljöverket
Open this publication in new window or tab >>Musik och höga ljudnivåer: praktiska riktlinjer för musik- och underhållningsbranschen
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2009 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Stockholm: Arbetsmiljöverket, 2009. p. 109
Series
Arbetsmiljöverket Rapport ; 1
Keywords
Musik hörsel åtgärder
National Category
Engineering and Technology
Identifiers
urn:nbn:se:hig:diva-10455 (URN)
Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2018-03-13Bibliographically approved
Landström, U. (2007). Buller: störningseffekter. In: Nordisk lärobok i audiologi. Bromma: CA Tegnér
Open this publication in new window or tab >>Buller: störningseffekter
2007 (Swedish)In: Nordisk lärobok i audiologi, Bromma: CA Tegnér , 2007, , p. 8Chapter in book (Other academic)
Place, publisher, year, edition, pages
Bromma: CA Tegnér, 2007. p. 8
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-2149 (URN)978-91-631-9440-5 (ISBN)
Available from: 2008-06-24 Created: 2008-06-24 Last updated: 2018-03-13Bibliographically approved
Arlinger, S., Kjellberg, A., Landström, U., Kähäri, K., Hagerman, B., Poulsen, T. & Bengtsson, J. (2007). Musik, musiker och hörsel: en kunskapssammanställning om höga ljudnivåer och hörselskaderisker i musik- och underhållningssektorn. Stockholm: Arbetsmiljöverket
Open this publication in new window or tab >>Musik, musiker och hörsel: en kunskapssammanställning om höga ljudnivåer och hörselskaderisker i musik- och underhållningssektorn
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2007 (Swedish)Report (Other academic)
Place, publisher, year, edition, pages
Stockholm: Arbetsmiljöverket, 2007. p. 96
Keywords
Musiker, hörsel, hörselskador
National Category
Occupational Health and Environmental Health
Identifiers
urn:nbn:se:hig:diva-2133 (URN)
Available from: 2008-06-23 Created: 2008-06-23 Last updated: 2018-03-13Bibliographically approved
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