Dataset Information

Air Pollution Monitoring Around Residential and Transportation Sector Locations in Lagos Mainland.

ABSTRACT:

Background

Industrialization and urbanization, while associated with increased productivity, are also potential causes of increased air pollution. Urban air quality has the potential to affect the health and wellbeing of residents of urban areas.

Objectives

The present study investigated the levels of air pollutants around residential areas and transport sector locations (TSLs) in Lagos, Nigeria. Residential areas were defined as areas around inner streets and living quarters, while TSLs included busy roads, dual carriage roads, bus stops and major car parks in the Yaba Local Council Development Area of Lagos Mainland, Lagos, Nigeria.

Methods

Air quality parameters were assessed in situ using calibrated hand-held devices at selected residential and TSLs. Each sampling location was geo-referenced and concentrations of the various parameters were used to plot distribution maps.

Results

The findings from the monitoring exercise showed that levels of the measured air pollutants: carbon monoxide (CO), particulate matter (PM₁₀ and PM_2.5), sulphur dioxide (SO₂), noise, temperature and humidity were within the ranges of 1.00 - 6.0 5.97 ppm, 43.345.2 - 127.2159.7 ?g/m³, 20.3 23.25 - 69.058.16 ?g/m³, 0.0 0 - 0.20.17 ppm, 47.7 50 - 65 70.1 dB, 26.2227.2 - 35.536.7°C and 57.0157.6 - 91.8492.3%, respectively, around residential areas. Values of the measured air pollutants at the TSLs ranged as follows: 2.011.0 - 5.397.7 ppm, 103.3360.7 - 179.77404.0 ?g/m³, 50.2832.3 - 91.01184.0 ?g/m³, 0.00 - 0.40 ppm, 64.2153.1 - 71.1376.3 dB, 27.1826.2 -27.9332.6°C and 60.3660.0 - 75.0178.0%, respectively. Hydrogen sulphide (H₂S), ammonia (NH₃), nitrogen oxide (NO₂) were below detection limits in both sampling locations while volatile organic carbons (VOCs) ranged from 0.00 - 0.10 ppm in the TSLs.

Discussion

Most assessed air quality parameters were significantly higher around bus stops (P < 0.05), except for CO and humidity. In addition, PM₁₀ and PM_2.5 were much higher than the World Health Organization (WHO) guidelines. The results indicated that the quality of air (particulate matter) in the study area was poor, especially in the TSLs.

Conclusions

The Federal Ministry of Environment, through its relevant agencies, must create policies to address urban air pollution, taking into consideration long term exposures and people that are most vulnerable within the population.

Competing interests

The authors declare no competing financial interests.

SUBMITTER: Obanya HE

PROVIDER: S-EPMC6257165 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Publications

Air Pollution Monitoring Around Residential and Transportation Sector Locations in Lagos Mainland.

Obanya Henry E HE Amaeze Nnamdi H NH Togunde Olusola O Otitoloju Adebayo A AA

Journal of health & pollution 20180821 19

<h4>Background</h4>Industrialization and urbanization, while associated with increased productivity, are also potential causes of increased air pollution. Urban air quality has the potential to affect the health and wellbeing of residents of urban areas.<h4>Objectives</h4>The present study investigated the levels of air pollutants around residential areas and transport sector locations (TSLs) in Lagos, Nigeria. Residential areas were defined as areas around inner streets and living quarters, whi ...[more]

PMID: 30524862

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Project description:BackgroundPrenatal exposure to outdoor air pollution has been shown to have health effects in many studies; low birth weight, preterm delivery, small for gestational age, and stillbirth are the most often cited. However, exposure of pregnant women is difficult to quantify, especially with regard to their mobility, which is rarely taken into account in epidemiological studies. This study aimed to assess the impact of mobility of pregnant women living in Paris, France, on their exposure estimates to nitrogen dioxide (NO2).MethodsA total of 486 pregnant women were recruited in 5 maternity hospitals in Paris between January and April 2016. A questionnaire was used to collect mothers' characteristics (demography, education, etc.) and to assess their daily mobility during pregnancy (time spent at work, commuting time and mode used to move from residential to occupational places). Daily NO2 concentrations were estimated based on the combination of annual average concentrations modeled at the census block scale and daily concentrations measured from fixed monitoring stations. Different models were used to compare the exposure of pregnant women in residential and occupational places, also taking into account travel time and travel mode. The socioeconomic profile of the census blocks was characterized using a multi-component index.ResultsDuring the first trimester of pregnancy, women living in the least deprived census blocks were exposed to higher concentrations of NO2 than those living in the most deprived ones. Occupational mobility had a small impact on exposure levels (average increase after taking account of mobility: + 0.52 μg/m3) which was not related to the socioeconomic profile of the women. The commuting mode made a greater difference (+ 1.46 μg/m3 on average), in particular among women living in the most deprived census blocks.ConclusionsOur study illustrates that air pollution exposure can be underestimated when ignoring occupational mobility and commuting mode of pregnant women. This effect might be differential according to the neighborhood deprivation profile.

Dataset Information

Air Pollution Monitoring Around Residential and Transportation Sector Locations in Lagos Mainland.

Background

Objectives

Methods

Results

Discussion

Conclusions

Competing interests

Publications

Air Pollution Monitoring Around Residential and Transportation Sector Locations in Lagos Mainland.

Similar Datasets

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