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The ordinary work environment increases symptoms from eyes and airways in mild steel welders.

Jönsson LS, Tinnerberg H, Jacobsson H, Andersson U, Axmon A, Nielsen J - Int Arch Occup Environ Health (2015)

Bottom Line: Furthermore, we would clarify the influence of possible effect modifiers.The current Swedish OEL may not protect welders against eye and airway symptoms.The results add to the evidence that welders should be offered regular medical surveillance from early in the career.

View Article: PubMed Central - PubMed

Affiliation: Division of Occupational and Environmental Medicine, Lund University Hospital, 22185, Lund, Sweden.

ABSTRACT

Purpose: We aimed to follow diary-registered symptoms from eyes and airways in mild steel welders and relate them to different exposure measures. Furthermore, we would clarify the influence of possible effect modifiers.

Methods: Non-smoking welders with (N = 74) and without (N = 32) work-related symptoms the last month were enroled. Symptoms and work tasks each day for three two-week periods during 1 year were obtained. Respirable dust (RD) was measured 1 day each period for each worker. The personal daily exposure was assessed as: (1) days at work, (2) welding time and (3) estimates of RD from welding and grinding, calculated from diary entries and measurements.

Results: Only 9.2 % of the particle measurements exceed the Swedish occupational exposure limit (OEL; 5 mg/m(3)). Days at work increased the risk of symptoms studied: eyes: 1.79 (1.46-2.19), nasal: 2.16 (1.81-2.58), dry cough: 1.50 (1.23-1.82) and wheezing and/or dyspnoea: 1.27 (1.03-1.56; odds ratio, 95 % confidence interval). No clear dose-response relationships were found for the other exposure estimates. Eye symptoms increased by number of years welding. Nasal symptoms and dry cough increased having forced expiratory volume in first second below median at baseline. Wheezing and/or dyspnoea increased in winter, by number of years welding, having a negative standard skin-prick test and having a vital capacity above median at baseline.

Conclusion: The current Swedish OEL may not protect welders against eye and airway symptoms. The results add to the evidence that welders should be offered regular medical surveillance from early in the career.

No MeSH data available.


Related in: MedlinePlus

Relation between estimated exposures expressed as welding time (a) and respirable dust (b) and presence or absence of symptoms, respectively, from eyes, nose, dry cough and wheezing and/or dyspnoea in a box plot diagram showing medians and the 25 and 75 percentiles for all estimated exposures during the study periods
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Fig1: Relation between estimated exposures expressed as welding time (a) and respirable dust (b) and presence or absence of symptoms, respectively, from eyes, nose, dry cough and wheezing and/or dyspnoea in a box plot diagram showing medians and the 25 and 75 percentiles for all estimated exposures during the study periods

Mentions: When individual relationships between exposure estimates and symptoms or no symptoms, respectively, were studied, welders with symptoms had longer daily WT than those without symptoms (Fig. 1a), whereas exposure only was higher in subjects with nasal symptoms and wheezing and/or dyspnoea when estimated respiratory dust was used (Fig. 1b).Fig. 1


The ordinary work environment increases symptoms from eyes and airways in mild steel welders.

Jönsson LS, Tinnerberg H, Jacobsson H, Andersson U, Axmon A, Nielsen J - Int Arch Occup Environ Health (2015)

Relation between estimated exposures expressed as welding time (a) and respirable dust (b) and presence or absence of symptoms, respectively, from eyes, nose, dry cough and wheezing and/or dyspnoea in a box plot diagram showing medians and the 25 and 75 percentiles for all estimated exposures during the study periods
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4608979&req=5

Fig1: Relation between estimated exposures expressed as welding time (a) and respirable dust (b) and presence or absence of symptoms, respectively, from eyes, nose, dry cough and wheezing and/or dyspnoea in a box plot diagram showing medians and the 25 and 75 percentiles for all estimated exposures during the study periods
Mentions: When individual relationships between exposure estimates and symptoms or no symptoms, respectively, were studied, welders with symptoms had longer daily WT than those without symptoms (Fig. 1a), whereas exposure only was higher in subjects with nasal symptoms and wheezing and/or dyspnoea when estimated respiratory dust was used (Fig. 1b).Fig. 1

Bottom Line: Furthermore, we would clarify the influence of possible effect modifiers.The current Swedish OEL may not protect welders against eye and airway symptoms.The results add to the evidence that welders should be offered regular medical surveillance from early in the career.

View Article: PubMed Central - PubMed

Affiliation: Division of Occupational and Environmental Medicine, Lund University Hospital, 22185, Lund, Sweden.

ABSTRACT

Purpose: We aimed to follow diary-registered symptoms from eyes and airways in mild steel welders and relate them to different exposure measures. Furthermore, we would clarify the influence of possible effect modifiers.

Methods: Non-smoking welders with (N = 74) and without (N = 32) work-related symptoms the last month were enroled. Symptoms and work tasks each day for three two-week periods during 1 year were obtained. Respirable dust (RD) was measured 1 day each period for each worker. The personal daily exposure was assessed as: (1) days at work, (2) welding time and (3) estimates of RD from welding and grinding, calculated from diary entries and measurements.

Results: Only 9.2 % of the particle measurements exceed the Swedish occupational exposure limit (OEL; 5 mg/m(3)). Days at work increased the risk of symptoms studied: eyes: 1.79 (1.46-2.19), nasal: 2.16 (1.81-2.58), dry cough: 1.50 (1.23-1.82) and wheezing and/or dyspnoea: 1.27 (1.03-1.56; odds ratio, 95 % confidence interval). No clear dose-response relationships were found for the other exposure estimates. Eye symptoms increased by number of years welding. Nasal symptoms and dry cough increased having forced expiratory volume in first second below median at baseline. Wheezing and/or dyspnoea increased in winter, by number of years welding, having a negative standard skin-prick test and having a vital capacity above median at baseline.

Conclusion: The current Swedish OEL may not protect welders against eye and airway symptoms. The results add to the evidence that welders should be offered regular medical surveillance from early in the career.

No MeSH data available.


Related in: MedlinePlus