Particulate air pollution and noise: Assessing commuter exposure in Africa's most populous city

Okokon, Enembe O.; Taimisto, Pekka; Turunen, Anu W.; Amoda, Olanrewaju A.; Fasasi, Abolaji E.; Adeyemi, Lewis Gregory; Juutilainen, Jukka; Lanki, Timo

doi:10.1016/j.jth.2018.04.003

Cited by 23 publications

(11 citation statements)

References 42 publications

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“…One of the hypotheses for the paucity of studies on noise in hospitals in the African continent is that there are other more urgent needs, such as access to drinking water and treatment of some diseases, such as HIV and Ebola. Several researchers cite the lack of noise-related research in Africa (Okokon et al 2018 ; Sieber et al 2018 ). In a review study on noise pollution, Khan et al ( 2018 ) found that most research on the subject has been conducted in Europe, demonstrating a potential gap for studies in this area in Africa, Oceania and South America.…”

Section: Resultsmentioning

confidence: 99%

Environmental noise in hospitals: a systematic review

Andrade

Silva

Lima

et al. 2021

Environ Sci Pollut Res

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Graphical abstract Environmental noise has been growing in recent years, causing numerous health problems. Highly sensitive environments such as hospitals deserve special attention, since noise can aggravate patients’ health issues and impair the performance of healthcare professionals. This work consists of a systematic review of scientific articles describing environmental noise measurements taken in hospitals between the years 2015 and 2020. The researchers started with a consultation of three databases, namely, Scopus, Web of Science, and ScienceDirect. The results indicate that for the most part, these studies are published in journals in the fields of medicine, engineering, environmental sciences, acoustics, and nursing and that most of their authors work in the fields of architecture, engineering, medicine, and nursing. These studies, which are concentrated in Europe, the Americas, and Asia, use as reference values sound levels recommended by the World Health Organization. L eq measured in hospital environments showed daytime values ranging from 37 to 88.6 dB (A) and nighttime values of 38.7 to 68.8 dB (A). L eq values for outdoor noise were 74.3 and 56.6 dB (A) for daytime and nighttime, respectively. The measurements were taken mainly inside hospitals, prioritizing more sensitive departments such as intensive care units. There is a potential for growth in work carried out in this area, but research should also include discussions about guidelines for improvement measures aimed at reducing noise in hospitals.

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Section: Resultsmentioning

confidence: 99%

Environmental noise in hospitals: a systematic review

Andrade

Silva

Lima

et al. 2021

Environ Sci Pollut Res

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“…Vehicle inspection and emission testing programme could be strengthened to achieve better results. Other approaches include a general shift to usage of public vehicles to reduce the number of private vehicles on the road just like the Bus Rapid Transit in Lagos ( Okokon et al., 2018 ).…”

Section: Drivers Of Anthropogenic Air Pollutants In Nigeriamentioning

confidence: 99%

Drivers of anthropogenic air emissions in Nigeria - A review

Okedere

Elehinafe

Oyelami

et al. 2021

Heliyon

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This study presents a review of sources and atmospheric levels of anthropogenic air emissions in Nigeria with a view to reviewing the existence or otherwise of national coordination aimed at mitigating the continued increase. According to individual researcher's reports, the atmospheric loading of anthropogenic air pollutants is currently on an alarming increase in Nigeria. Greater concerns are premised on the inadequacy existing emission inventories, continuous assessment, political will and development of policy plans for effective mitigation of these pollutants. The identified key drivers of these emissions include gas flaring, petroleum product refining, thermal plants for electricity generation, transportation, manufacturing sector, land use changes, proliferation of small and medium enterprises, medical wastes incineration, municipal waste disposal, domestic cooking, bush burning and agricultural activities such as land cultivation and animal rearing. Having identified the key sources of anthropogenic air emissions and established the rise in their atmospheric levels through aggregation of literature reports, this study calls for a review of energy policy, adoption of best practices in the management air emissions and solid wastes as well as agriculture and land use pattern which appear to be the rallying points of all identified sources of emission. The study concluded that the adoption of cleaner energy policies and initiatives in energy generation and usage as against pursuit of thermal plants and heavy dependence on fossil fuels will assist to ameliorate the atmospheric loadings of these pollutants.

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“…[ 9 ] However, a separate study carried out in a major city of Brazil recorded bus noise levels ranging from 78 to 84 dBA (with a mean of 81 ± 1 dBA),[ 10 ] similar to the levels found in a more recent study in large city in Africa of 78 dBA when the windows on the bus were closed and 83 dBA when the windows on the bus were open. [ 11 ] In a study conducted in Dhaka in Bangladesh, it was found that levels aboard city buses exceeded 85 dBA 15% of the time. [ 12 ] However, the extent to which bus engine noise impacts on the preferred listening levels of personal audio system users who are passengers on such buses is yet to be studied.…”

Section: Introductionmentioning

confidence: 99%

The contribution of personal audio system use and commuting by bus on daily noise dose

et al. 2021

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Background: For many young people, exposure to music from personal audio system use may represent a significant component of daily noise dose. Moreover, there is increasing concern for the hearing of those who listen at high volumes. The purpose of this study was to determine the noise levels experienced on commuter buses, and to investigate how these impact on the volume-setting behavior of young adult personal audio system users. Methods: A questionnaire was used to probe transport use, personal audio system-listening behaviors and the extent of understanding about noise-induced hearing loss. The influence of bus noise on volume-setting behavior was determined by measuring, in a lab setting, the sound-level preferences of participants when listening to their favorite song, a generic song, or a podcast in the absence and presence of various levels of bus noise, simulated using output-adjusted recordings made of bus noise. Statistical analysis was conducted using analysis of variance. Results: While the bus noise itself was below 85 dB Leq, as the sound level of the buses increased, so did the percentage of commuters who were found to exceed the equivalent of 8 hours of exposure at 85 dB Leq. Implications: Investment in buses with lower noise levels or the use of noise-canceling or noise-occluding headphones would help to reduce the likelihood of noise-induced hearing loss for bus commuters.

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Particulate air pollution and noise: Assessing commuter exposure in Africa's most populous city

Cited by 23 publications

References 42 publications

Environmental noise in hospitals: a systematic review

Environmental noise in hospitals: a systematic review

Drivers of anthropogenic air emissions in Nigeria - A review

The contribution of personal audio system use and commuting by bus on daily noise dose

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