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- Lofstedt, H., et al.
(author)
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Respiratory and Ocular Symptoms Among Employees at Swedish Indoor Swimming Pools
- 2016
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In: Journal of Occupational and Environmental Medicine. - : Ovid Technologies (Wolters Kluwer Health). - 1076-2752. ; 58:12, s. 1190-1195
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Journal article (peer-reviewed)abstract
- Background:This study investigated trichloramine exposure and prevalence of respiratory and ocular symptoms among Swedish indoor swimming pool workers.Methods:Questionnaires were distributed to pool workers and referents. Lung function and fraction of exhaled nitric oxide (FeNO) were measured before and after work. Exposure to trichloramine and trihalomethanes was measured over work shifts.Results:The mean personal trichloramine exposure was 36g/m(3). Significantly more exposed workers reported ocular and nasal symptoms. There were significant differences between groups in FeNO change following work, with exposed showing increased FeNO, which grew when analyses included only nonsmokers.Conclusions:The findings indicate that indoor swimming pool environments may have irritating effects on mucous membranes. FeNO data also indicate an inflammatory effect on central airways, but the clinical relevance is unclear. Low trichloramine levels found in this study were not associated with health effects.
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| 2. |
- Selden, A. I., et al.
(author)
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Chironomid midge sensitization in sewage workers : case study
- 2013
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In: Medical and Veterinary Entomology. - Hoboken, USA : Wiley-Blackwell. - 0269-283X .- 1365-2915. ; 27:3, s. 346-348
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Journal article (peer-reviewed)abstract
- Non-biting chironomid midges (Diptera: Chironomidae) may cause sensitization and allergic reactions in humans and have recently been identified as a potential health problem in Swedish municipal sewage treatment plants. To investigate, on a pilot scale, the allergenic potential of chironomids in sewage workers, all workers (n = 8) at a sewage treatment plant and local controls (n = 16) completed a symptom questionnaire, underwent measurement of the fraction of nitric oxide in exhaled air, spirometry, and provided serum samples for the determination of atopy status and the prevalence of specific immunoglobulin E (IgE) antibodies against Chironomus thummi (Chi t) using a commercial fluorescence enzyme immunoassay (FEIA). Three sewage workers (38%) but no controls (0%) were FEIA positive for C. thummi-specific IgE antibodies (P < 0.05). No other health-related findings were significantly different between the groups. The study suggested that occupational exposure to Chironomids may cause sensitization with circulating IgE-antibodies in sewage workers.
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