e-Algerian Journal of Health & Research
Volume 2, Numéro 2, Pages 132-142
2026-04-26

Carbon Monoxide Measurement In Exhaled Air Among Gas Station Workers In Tlemcen, Algeria



Authors : Sedjelmaci Nesrine . Chergui Zana . Hamed Halima .

Abstract

Fuel combustion is one of the main sources of carbon monoxide (CO). Chronic occupational exposure to this toxic gas has a harmful effect on physical capacity, particularly among gas station employees. The objective of this cross-sectional study carried out from January to September 2024 was to determine carbon monoxide concentration in exhaled air (COE) and carboxyhemoglobin (COHb) among gas station workers in Tlemcen, Algeria. Materials: the Smokerlyser®, was used to measure COE and COHb, data was collected using a structured questionnaire and analyzed by SPSS 26. Results: The 49 subjects included had a mean age of 43.02 ± 9.14 years, they were all male with approximately 57% smokers and 42.90% non-smokers. The mean COE was 10.20 ± 8.276 ppm and COHb 2.26 ± 1.32%. These levels were significantly higher in smokers (COE = 16.04 ± 6.25 ppm, COHb = 3.19 ± 1.00%) compared to non-smokers (COE = 2.43 ± 0.598 ppm and COHb = 1.01 ± 0.095%) (p<0.0001). Fatigue and headache were reported by 83.7% and 67.3% of workers respectively. These symptoms were 0.05 times more common among people who had worked for more than or equal to 20 years, according to logistic regression analysis (OR = 0.05, CI 95% = 0.003-0.719, p = 0.028). Conclusion: Chronic exposure of gas station employees to combustible chemicals increases the risk of carbon monoxide poisoning. Regular biomonitoring and the implementation of adequate protective measures are necessary.

Keywords

Carbon monoxide, carboxyhemoglobin, gas station, exhaled air, toxicity, occupational exposure.

Les articles similaires

Identification Value Of A Multi-indicator Model For Lactic Acidosis In Acute Carbon Monoxide Poisoning: A Retrospective Cross-sectional Study

Ke Junjie .  Zhu Decai . 
pages 499-506.

مستوى الإدراك السمعي لدى التلاميذ المدمجين في أقسام التعليم المكيف دراسة ميدانية بعدد من أقسام التعليم المكيف بولاية – تلمسان –the Level Of Auditory Perception Among Students Integrated Into The Air-conditioned Education Departments A Field Study In A Number Of Air-conditioned Education Departments In The State Of Tlemcen.

غلاي فوزية .  بوحفص طارق . 
ص 125-142.

تحولات سوق الغاز الأوروبي بعد حرب روسيا-أوكرانيا ومكانة الغاز الجزائري بين المنافسين فيه Transformations Of The European Gas Market After The Russia-ukraine War And The Status Of Algerian Gas Among Its Competitors

رولامي عبد الحميد . 
ص 25-40.

When The World Recedes, Art Persists: A Presentation Art As Of A Counter-narrative To The Apocalypse In Emily St. John Mandel’s Station Eleven عندما يتراجع العالم ٬يستمر الفن: عرض الفن كسرد مضاد لنهاية العالم في Station Eleven لإميلي ساينت جون ماندال

Laboudi Hesna . 
pages 1081-1098.

Simulation Des Precipitations Mensuelles Par Un Modele Statistique : Application A La Station D'alger Simulation Of Monthly Precipitations By A Statistical Model. Application To The Station Of Algiers

Souag-gamane Dja .  Dechemi érie Reddine . 
pages 95-102.

Formats de citation