Health Impacts of Vehicular Emissions on Traffic Workers in Lagos Metropolis, Nigeria
Keywords:
Air Pollution, Traffic Workers, Lagos State, Vehicular EmissionsAbstract
Background: Air pollution is fast becoming a major health and physical problem in Nigeria especially in Lagos state which has the highest urban population.\
Aim and Objective: The aim of this study was to assess the health impact of vehicular emissions on Traffic Workers across three Local Government Areas.
Methodology: Well-designed questionnaires were administered to traffic personnel and air quality was also measured. Aerocet 531 particulate matter monitor, Multi-Rae plus and V-Rae PGM 7840 gas monitors were used to measure the particulate matter (PM), Carbon monoxoide (CO), Nitogen di oxide (NO2) and Silphur di oxide (SO2) respectively.
Results: The concentration of CO, SO2, NO2, PM2.5 and PM10.0 in Lagos at peak periods (8.00 and 9.30 am) varied between 4.0 and 13.0ppm, 0.1 and 0.3ppm, 0.2 and 0.5, 0.010 and 0.046 mg/m3, 0.063 and 0.572 mg/m3 respectively while at off peak period ((1.00 and 2.30 pm) it varied between 1.0 and 10.0 ppm, 0.1 and 0.3, 0.1 and 0.2 ppm, 0.006 and 0.039 mg/m3 and 0.040 to 0.205 mg/m3. WHO limits are 10.0ppm, 0.01ppm, 0.04 ppm, 0.025 and 0.050 mg//m3for CO, SO2, NO2, PM2.5 and PM10.0 respectively. The questionnaires also showed that 56%, 53% and 49% of the sampled population (90) suffered from frequent headaches fatigue and frequent cough respectively.
Conclusion: In general this study showed vehicular emissions impact negatively on the air quality and health of traffic personnel. Thus measures such should be put in place to reduce the hours of exposures of traffic workers to vehicular emissions
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