Limits...
Night-time decibel hell: mapping noise exposure zones and individual annoyance ratings in an urban environment in ghana.

Zakpala RN, Armah FA, Sackey BM, Pabi O - Scientifica (Cairo) (2014)

Bottom Line: However, there was no statistically significant relationship between neighbourhoods where religious noise exposure was the highest and where noise annoyance was the highest.The magnitude of the noise values for night-time exposure is remarkable particularly given that excessive night-time noise exposure has the greatest detrimental effect on public health.There is the need to focus on vulnerable groups, sensitive hours of the night, and possible confounding with air pollution in order to wholly address this potential hazard.

View Article: PubMed Central - PubMed

Affiliation: Institute for Environment and Sanitation Studies, University of Ghana, Legon, Accra, Ghana.

ABSTRACT
Although accumulating evidence over the past thirty years indicates that noise is an environmental stressor in residential settings, much of the data emanated from studies in high-intensity, noise impact zones around airports or major roads. Little is known about religious noise, especially at night, which is increasingly a growing concern for both the general public and policy-makers in sub-Saharan Africa. Using geographical information systems (GIS), this study measured and mapped exposure to religious noise in a rapidly urbanising municipality in Ghana. Quantitative noise risk assessment was used to evaluate the risk of religious noise-induced hearing loss to residents in the exposed neighbourhoods. The results show that all neighbourhoods where churches were situated had at least one location with significant risk of noise-induced hearing loss. However, there was no statistically significant relationship between neighbourhoods where religious noise exposure was the highest and where noise annoyance was the highest. The magnitude of the noise values for night-time exposure is remarkable particularly given that excessive night-time noise exposure has the greatest detrimental effect on public health. There is the need to focus on vulnerable groups, sensitive hours of the night, and possible confounding with air pollution in order to wholly address this potential hazard.

No MeSH data available.


Related in: MedlinePlus

Map of Ashaiman showing the selected communities.
© Copyright Policy - open-access
Related In: Results  -  Collection


getmorefigures.php?uid=PMC4127213&req=5

fig1: Map of Ashaiman showing the selected communities.

Mentions: Our understanding of religious noise exposure is rather nascent. To our knowledge, no study has till date considered spatial distribution of night-time religious noise exposure in urban residential environments. This study therefore sought to measure the levels of religious noise produced in the Ashaiman Municipality, a rapidly growing urban environment in Ghana, to construct a night-time noise map indicating the distribution of exposure in residential neighbourhoods of the Ashaiman Municipality, and to assess the risk of religious noise-induced hearing loss to residents in the exposed neighbourhoods. Given the rapid increase in density of buildings for religious activities in Ghana in recent years, it is hypothesised that exposure to religious noise in the study area is considerably above the Ghana Environmental Protection Agency limits of 48 dB(A) Leq for night-time exposure. This limit is almost identical to the World Health Organisation limit of 45 dB(A) Leq for night-time exposure [15]. These limits are regarded as the levels above which exposure to noise is detrimental to human health. In order to investigate the hypothesis, the measurements of noise levels were taken at selected locations in the study area. It is anticipated that this study will inform environmental noise pollution policy in Ghana and the west African subregion Figure 1 shows the communities in which the study was undertaken.


Night-time decibel hell: mapping noise exposure zones and individual annoyance ratings in an urban environment in ghana.

Zakpala RN, Armah FA, Sackey BM, Pabi O - Scientifica (Cairo) (2014)

Map of Ashaiman showing the selected communities.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127213&req=5

fig1: Map of Ashaiman showing the selected communities.
Mentions: Our understanding of religious noise exposure is rather nascent. To our knowledge, no study has till date considered spatial distribution of night-time religious noise exposure in urban residential environments. This study therefore sought to measure the levels of religious noise produced in the Ashaiman Municipality, a rapidly growing urban environment in Ghana, to construct a night-time noise map indicating the distribution of exposure in residential neighbourhoods of the Ashaiman Municipality, and to assess the risk of religious noise-induced hearing loss to residents in the exposed neighbourhoods. Given the rapid increase in density of buildings for religious activities in Ghana in recent years, it is hypothesised that exposure to religious noise in the study area is considerably above the Ghana Environmental Protection Agency limits of 48 dB(A) Leq for night-time exposure. This limit is almost identical to the World Health Organisation limit of 45 dB(A) Leq for night-time exposure [15]. These limits are regarded as the levels above which exposure to noise is detrimental to human health. In order to investigate the hypothesis, the measurements of noise levels were taken at selected locations in the study area. It is anticipated that this study will inform environmental noise pollution policy in Ghana and the west African subregion Figure 1 shows the communities in which the study was undertaken.

Bottom Line: However, there was no statistically significant relationship between neighbourhoods where religious noise exposure was the highest and where noise annoyance was the highest.The magnitude of the noise values for night-time exposure is remarkable particularly given that excessive night-time noise exposure has the greatest detrimental effect on public health.There is the need to focus on vulnerable groups, sensitive hours of the night, and possible confounding with air pollution in order to wholly address this potential hazard.

View Article: PubMed Central - PubMed

Affiliation: Institute for Environment and Sanitation Studies, University of Ghana, Legon, Accra, Ghana.

ABSTRACT
Although accumulating evidence over the past thirty years indicates that noise is an environmental stressor in residential settings, much of the data emanated from studies in high-intensity, noise impact zones around airports or major roads. Little is known about religious noise, especially at night, which is increasingly a growing concern for both the general public and policy-makers in sub-Saharan Africa. Using geographical information systems (GIS), this study measured and mapped exposure to religious noise in a rapidly urbanising municipality in Ghana. Quantitative noise risk assessment was used to evaluate the risk of religious noise-induced hearing loss to residents in the exposed neighbourhoods. The results show that all neighbourhoods where churches were situated had at least one location with significant risk of noise-induced hearing loss. However, there was no statistically significant relationship between neighbourhoods where religious noise exposure was the highest and where noise annoyance was the highest. The magnitude of the noise values for night-time exposure is remarkable particularly given that excessive night-time noise exposure has the greatest detrimental effect on public health. There is the need to focus on vulnerable groups, sensitive hours of the night, and possible confounding with air pollution in order to wholly address this potential hazard.

No MeSH data available.


Related in: MedlinePlus