Exposure to hazardous air pollutants along Oba Akran road, Lagos – Nigeria

Olajire, Abass A.; Azeez, Luqmon; Oluyemi, E. A.

doi:10.1016/j.chemosphere.2011.04.074

Cited by 37 publications

(33 citation statements)

References 23 publications

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“…The CO concentration in this study is quite similar to those reported by Olajire et al (2011) in a study of air pollutants along Oba Akran road, Ikeja Lagos and were much higher to the results obtained for heavy traffic points in Ibadan and Ado Ekiti (Koku and Osuntogun, 2007 The value of NO recorded is between 0 ppm in several sampling points to 3 ppm in Oshodi traffic intersection. There was significant difference at (P<0.05) between vehicular and dump site, vehicular and industrial site, vehicular and residential site.…”

Section: Ns-not Sampledsupporting

confidence: 78%

“…Traffic congestion is everyday life in the case study city. This may be attributed to poor road infrastructure, uncontrolled automobile growth, lack of effective urban mass transit system, inadequate road networks and private car oriented traffic system because burning of fossil fuel is known to be the major contributor to total NO 2 pollutant load (Olajire et al, 2011). The NO 2 concentrations at all the sampling sites exceeded the US maximum national ambient air concentration of 0.313 ppm (1h exposure time average).…”

Section: Ns-not Sampledmentioning

confidence: 99%

See 1 more Smart Citation

Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria

Njoku¹,

Rumide²,

Akinola³

et al. 2016

Journal of Applied Sciences and Environmental Management

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Twenty one sampling locations were assessed for carbon monoxide (CO), carbondioxide (CO 2 ), oxygen (O 2 ), sulphur dioxide (SO 2 ), nitrogen dioxide (NO 2 ), nitrogen oxide (NO), suspended particulate matter (SPM) and noise level using air pollutants measurement methods approved by ASTM for each specific parameter. All equipments and meters were all properly pre-calibrated before each usage for quality assurance. Findings of the study showed that measured levels of noise (61.4 -101.4 dBA), NO (0.0 -3.0 ppm), NO 2 (0.0 -3.0 ppm), CO (1.0 -42.0 ppm) and SPM (0.14 -4.82 ppm) in all sampling areas were quite high and above regulatory limits however there was no significant difference except in SPM (at all the sampling points), and noise, NO 2 and NO (only in major traffic intersection). Air quality index (AQI) indicates that the ambient air can be described as poor for SPM, varied from good to very poor for CO, while NO and NO 2 are very good except at major traffic intersection where they were both poor and very poor (D-E). The results suggest that strict and appropriate vehicle emission management, industrial air pollution control coupled with close burning management of wastes should be considered in the study area to reduce the risks associated with these pollutants.© JASEM http://dx.doi.org/10.4314/jasem.v20i1.21

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Section: Ns-not Sampledsupporting

confidence: 78%

Section: Ns-not Sampledmentioning

confidence: 99%

Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria

Njoku¹,

Rumide²,

Akinola³

et al. 2016

Journal of Applied Sciences and Environmental Management

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“…4, No. 3;2015 found near major traffic roads in Freetown, Sierra Leone and Lagos, Nigeria (Olajire et al, 2011;Taylor & Nakai, 2012b). Generally, the study revealed that kitchens using charcoal as the primary fuel had higher mean CO concentrations than those using wood; and similar observation was made in previous studies (Bhattacharya et al, 2002;Taylor & Nakai, 2012a;Zhang et al, 1999).…”

Section: Discussionsupporting

confidence: 77%

Diurnal Concentrations and Variation of Carbon Monoxide in Indoor and Outdoor Air of Residential Homes in Western Sierra Leone

Taylor

Wirmvem

Sawyerr³

et al. 2015

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It is widely known that more than half of the world's population use biomass fuels (wood, charcoal, dung) as household energy source, and hence, face significant and diverse range of toxic pollutants. In Sierra Leone, more than 90% of the population relies on biomass fuels. We carried out daytime measurements and observe variation of carbon monoxide (CO) in kitchen and outdoor locations in households that burn wood and charcoal fuels in Western Sierra Leone, during a survey that was conducted in September, 2011. Maximum time average 15 mins, 30 mins, 1 hr and 8 hrs concentrations in indoor and outdoor locations were computed. Mean concentrations decreased in the order, 15 mins to 30 mins to 1 hr and 8 hrs, in the two locations for households that burn wood and charcoal. About 87% and 67% of 8 hrs CO concentrations in kitchens with charcoal and wood stoves were in excess of world health organization (WHO) guideline. Approximately 66% and 63% of 1 hr CO concentrations were not different in the same environments. None of the corresponding outdoor locations had values that are said to be critical to human health. Evidence of greater variation in the maximum time average mean CO concentrations in kitchens with charcoal stoves relative to those using wood was observed. Behavioral patterns in homes burning charcoal coupled with the burning conditions were ascribed to the observed variation. The proportion of the short time and acute CO concentrations in kitchens is a cause for concern for humans from the stand point of improved human health.

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“…High levels of CO along major roads such as the Sagamu/Ore Expressway, Oke-Aje Market and Oke-owa/ Ikoto/Ilese can be attributed to heavy traffic congestion where long waiting time of vehicles at intersection was observed. Continuous exposure to higher levels for longer time periods may lead to headache, dizziness and nausea and also death [Olajire et al, 2011]. These portend a growing risk of traffic-related problems in Nigeria cities and therefore demand serious air quality measures.…”

Section: Resultsmentioning

confidence: 99%

“…Cities such as Lagos, Ibadan, Port Harcourt and Ijebu-ode in Nigeria are manifesting increasing air pollution due rapid urbanization, industrialization and economic growth [Chattopadhyay et al, 2010;Laumbach and Kipen, 2012;Dons et al, 2013]. Although there are many other sources of pollution in the urban environment, current observations have shown that more than half the pollution load in our cities is due to automobile exhaust [Tang et al, 2007;Olajire et al, 2011]. Traffic related air pollution is on the increase due to growing levels of motorization and lack of proper management of urban traffic situations [Xia and Shao, 2005;Briggs, 2007;Paez et al, 2013].…”

Section: Introductionmentioning

confidence: 99%

Mapping of Traffic-Related Air Pollution Using GIS Techniques in Ijebu-Ode, Nigeria

Adedeji

Oluwafunmilayo

Oluwaseun

2016

IJG

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Spatial and temporal characteristics of traffic related air pollutants (CO, NO, NO 2 and SO 2 ) in Ijebu-ode, Nigeria were determined using replicate portable gas detectors (Land Duo Multi Gas Monitor) at selected road junctions, motor garages and markets. Mapping of different concentration of air pollutants was carried out using kriging type of interpolation method in GIS environment. Concentration of CO ranges from 4.8 ppm at Erinlu/Molipa Roundabout to 137ppm on Sagamu/Ore Expressway. Concentrations of NO 2 range from 100-662 ppb with overall average value (OAV) of 299.8 ppb, while concentration of nitrogen oxide (NO) ranges between 67-302 ppb and OAV of 166.23 ppb. SO 2 had concentration ranging between 38-245 ppb and an OAV of 139.07 ppb all of which are above standard ambient air quality standards. AQI indicated very unhealthy air quality in most areas which calls for the need to establish and strengthen the health-based standard for air pollutants. Abstrak Karakteristik spasial dan temporal polutan udara terkait lalu lintas (CO, NO, NO 2 dan SO 2 ) di Ijebu-ode, Nigeria ditentukan dengan detektor gas portable replika (Land Duo Multi Gas Monitor) di persimpangan jalan yang dipilih, garasi bermotor dan pasar. Pemetaan berbagai konsentrasi polutan udara dilakukan dengan menggunakan jenis kriging dari metode interpolasi di GIS. Konsentrasi CO berkisar dari 4,8 ppm di bundaran Erinlu

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Exposure to hazardous air pollutants along Oba Akran road, Lagos – Nigeria

Cited by 37 publications

References 23 publications

Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria

Ambient Air Quality Monitoring in Metropolitan City of Lagos, Nigeria

Diurnal Concentrations and Variation of Carbon Monoxide in Indoor and Outdoor Air of Residential Homes in Western Sierra Leone

Mapping of Traffic-Related Air Pollution Using GIS Techniques in Ijebu-Ode, Nigeria

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