Concentrations of carbon monoxide in indoor and outdoor air of Ghalyun cafes

Developmental Biology

Ali Rastgu¹  Mehdi Fazlzadeh¹  Roohollah Rostami²  Sadegh Hazrati¹ 

[1] Department of Environmental Health Engineering, School of Public Health, Ardabil University of Medical Sciences, Ardabil, Iran$$;Department of Environmental Health Engineering, School of Health, Semnan University of Medical Sciences, Semnan, Iran$$

关键词: Carbon monoxide;    Ghalyun;    indoor;    outdoor;    cafes;   

DOI  :  10.5094/APR.2015.061

学科分类：农业科学（综合）

来源: Dokuz Eylul Universitesi * Department of Environmental Engineering

【 摘 要 】

Indoor and outdoor carbon monoxide (CO) concentrations were measured in 68 Ghalyun cafes in Ardabil City of Iran. One hour sampling was performed in each location and hourly mean concentrations were reported. Respective mean concentrations of CO in indoor and outdoor air were 24.75±17.17 and 2.65±1.33 ppm with an average indoor to outdoor air concentration ratio of 13.3±13.1. Within the variables studied; type of the tobacco smoked, location of the cafe inside the building, and utilizing mechanical ventilator, respectively, were recognized as the most influential factors controlling CO concentrations in Ghalyun cafes (p<0.05). 73.5% of workers (27.3 and 95.7% of cafes located on ground floors and basements, respectively) were exposed to higher levels of CO than the corrected OEL–TWA (Occupational Exposure Limit) of 10.4 ppm.

【 授权许可】

Unknown   

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