Temperature, Humidity and Air Pollution Relationships during a Period of Rainy and Dry Seasons in Lagos, West Africa

Emekwuru, Nwabueze; Ejohwomu, Obuks

doi:10.3390/cli11050113

Cited by 12 publications

(5 citation statements)

References 19 publications

(51 reference statements)

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“…Our mean results for PM 1 /PM 10 compared to other locations like 0.64-Varanasi region, India (Chauhan et al [38]); 0.48-Chennai city, India [39]; and 0.62-Lagos, Nigeria [40]; but lower than 0.92-Barcelona, Spain [41]. The differences in PM 1 /PM 10 ratios suggest variations in pollution sources.…”

Section: Resultscontrasting

confidence: 43%

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A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

Abulude,

Oluwagbayide,

Akinnusotu

et al. 2024

Pollutants

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This study presents a comprehensive assessment of indoor particulate matter (PM) concentrations, focusing on PM1, PM2.5, and PM10 in five primary health centers (PHCs): Arakale (Urban), the Federal College of Agriculture (FECA) (Urban), Iju (semi-urban), Oba-Ile (semi-urban), and Owode (Rural) within Akure local government areas in Nigeria. The primary novelty of this research lies in its detailed exploration of the toxicity potential of these PM fractions, providing valuable insights into the local air quality and associated health risks. This study assesses the health implications by calculating the toxicity potential (TP), relative risk (RR), excess risk (ER), and attributable fractions (Afs) for cardiopulmonary and lung cancer mortality. The results reveal varying RR values for all-cause mortality, with Arakale showing a slight elevation (RR: 1.061), indicating potential health risks. ER values for cardiopulmonary mortality range from 14.728 ± 7.25 to 19.04 ± 0.38, emphasizing the substantial excess risk associated with long-term PM2.5 exposure. The study also uncovers Afs for cardiopulmonary mortality ranging between 11.03 ± 0.31 and 19.22 ± 0.04, underscoring the significant contribution of PM to cardiovascular and respiratory health risks. Similarly, Afs for lung cancer mortality range from 10.03 ± 0.012 to 17.13 ± 0.10, highlighting the substantial association between PM2.5 exposure and lung cancer risk. These findings underscore the urgent need for targeted air quality management strategies and public health interventions in the studied locations to mitigate the heightened health risks associated with particulate matter pollution. The calculated RR, ER, and AF values offer crucial insights into the complex relationship between PM exposure and adverse health outcomes, providing a foundation for informed decision-making and future research endeavors.

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Section: Resultscontrasting

confidence: 43%

“…Figure 3 shows the PM 10 and PM 2.5 toxicity potentials (TPs). The TPs are classified thus: gion, India (Chauhan et al [38]); 0.48-Chennai city, India [39]; and 0.62-Lagos, Nigeria [40]; but lower than 0.92-Barcelona, Spain [41]. There is noticeable spatial variability in toxicity potential among the locations.…”

Section: Resultsmentioning

confidence: 99%

A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

Abulude,

Oluwagbayide,

Akinnusotu

et al. 2024

Pollutants

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show abstract

“…Our mean results for PM1/PM10 compared to other locations like 0.64 -Varanasi region, India (Chauhan et al [38], 0.48 -Chennai city, India [39], and 0.62 -Lagos, Nigeria [40], but lower than 0.92 -Barcelona, Spain [41]. The differences in PM1/PM10 ratios suggest variations in pollution sources.…”

Section: Resultsmentioning

confidence: 43%

A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

Abulude,

Oluwagbayide,

Akinnusotu

et al. 2023

Preprint

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This study presents a comprehensive assessment of indoor particulate matter (PM) concentrations, focusing on PM1, PM2.5, and PM10 in five Primary Health Centers (PHCs): Arakale, Federal College of Agriculture (FECA), Iju, Oba-Ile, and Owode within Akure Local Government Areas in Nigeria. The primary novelty of this research lies in its detailed exploration of the toxicity potential of these PM fractions, providing valuable insights into the local air quality and associated health risks. The study assesses the health implications by calculating the toxicity potential (TP), Relative Risk (RR), Excess Risk (ER), and Attributable Fractions (AF) for cardiopulmonary and lung cancer mortality. The results reveal varying RR values for all-cause mortality, with Arakale showing a slight elevation (RR: 1.061), indicating potential health risks. ER values for cardiopulmonary mortality range from 14.728±7.25 to 19.04±0.38, emphasizing the substantial excess risk associated with long-term PM2.5 exposure. The study also uncovers AF for cardiopulmonary mortality ranging between 11.03±0.31 to 19.22±0.04, underscoring the significant contribution of PM to cardiovascular and respiratory health risks. Similarly, AF for lung cancer mortality ranges from 10.03±0.012 to 17.13±0.10, highlighting the substantial association between PM2.5 exposure and lung cancer risk. These findings underscore the urgent need for targeted air quality management strategies and public health interventions in the studied locations to mitigate the heightened health risks associated with particulate matter pollution. The calculated RR, ER, and AF values offer crucial insights into the complex relationship between PM exposure and adverse health outcomes, providing a foundation for informed decision-making and future research endeavors.

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“…Studies suggest that air pollutants tend to be lower during wet season in comparison to dry season due to a decrease in the removal of particles through wet processes during the dry season (Emekwuru & Ejohwomu, 2023). During the dry season, elevated land surface temperature and low precipitation were observed to coincide with higher concentrations of air pollutants such.…”

Section: Seasonal Trends Of Air Quality In Port Areasmentioning

confidence: 99%

Time-Series Analysis of Satellite-Based Trace Gases Concentrations in Port Areas in the Philippines Using Sentinel-5p

Aporto,

Latunio,

Ramos

et al. 2024

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. This study examined the temporal variations of Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2) concentrations retrieved from Sentinel-5P TROPOMI in six port areas in the Philippines, representing different climate types. The results demonstrate that the COVID-19 lockdowns led to a significant decrease in NO2 levels, while SO2 concentrations varied due to factors such as volcanic activity. Seasonal analysis of NO2 and SO2 retrievals, considering the four climate types in the Philippines, revealed that the wet season values for both pollutants were higher than the dry season values for most ports. This disparity contradicted the general trend of higher air pollutant levels during the dry season and lower levels during the wet season. The authors attributed this to the nature of port activities during inclement weather, where ships are more likely to be docked with continuously operating engines, leading to continuous emissions within the port buffer zones. Temporal analysis and time series decomposition analysis revealed patterns and trends, identifying the months of minimum and maximum pollutant concentrations and the overall trend throughout the study period.

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Temperature, Humidity and Air Pollution Relationships during a Period of Rainy and Dry Seasons in Lagos, West Africa

Cited by 12 publications

References 19 publications

A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

A Comprehensive Analysis of Risk Assessment of Particulate Matter in Five Health Centers in Akure, Nigeria

Time-Series Analysis of Satellite-Based Trace Gases Concentrations in Port Areas in the Philippines Using Sentinel-5p

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