Investigation of Noise Pollution in Ifo Market, Ogun State, Southwestern Nigeria Service Unavailable

Due to economic expansion, industrialization, and unplanned urbanization, noise pollution is one of the most serious issues confronting the modern world. High levels of noise pollution have physiological (auditory) and psychological consequences. The project's goal is to determine the spatial and temporal variation of the noise levels in Ifo Market, Ogun State, Nigeria. A reconnaissance study was conducted across the Ifo market to map out sampling points of the areas. Residential views and perceptions of the presence of the market in the location were determined using ۱۰۰ questionnaires and social surveys across the market. Statistical Package for Social Science (SPSS) software was used to analyze the data at a ۹۵% confidence interval. The environmental equivalent noise levels (Leq) were measured at five (۵) randomly selected spots within the market in the morning and afternoon between September and October ۲۰۲۲ using an SW-۵۲۴ LCD digital sound level meter. The meter was held at about ۱.۵ meters above ground levels and ۳m from the noise source around each spot for ۲۵ minutes before readings were taken to ensure good area coverage, stability, and uniformity in measurement. The average noise pollution level (Lnp) was calculated using a standard equation. The Standard deviation of the affected area by noise pollution ranged from ۰.۲۰۱۰ to ۰.۴۵۲۱, respectively. The equivalent noise level in the market at the ۵ selected points for working days ranged between ۷۰ - ۹۷ dBA, respectively. The noise level generated is slightly above the permissible level which is dangerous to human health. The obtained data can serve as a piece of baseline information for noise pollution modeling and control.Due to economic expansion, industrialization, and unplanned urbanization, noise pollution is one of the most serious issues confronting the modern world. High levels of noise pollution have physiological (auditory) and psychological consequences. The project's goal is to determine the spatial and temporal variation of the noise levels in Ifo Market, Ogun State, Nigeria. A reconnaissance study was conducted across the Ifo market to map out sampling points of the areas. Residential views and perceptions of the presence of the market in the location were determined using ۱۰۰ questionnaires and social surveys across the market. Statistical Package for Social Science (SPSS) software was used to analyze the data at a ۹۵% confidence interval. The environmental equivalent noise levels (Leq) were measured at five (۵) randomly selected spots within the market in the morning and afternoon between September and October ۲۰۲۲ using an SW-۵۲۴ LCD digital sound level meter. The meter was held at about ۱.۵ meters above ground levels and ۳m from the noise source around each spot for ۲۵ minutes before readings were taken to ensure good area coverage, stability, and uniformity in measurement. The average noise pollution level (Lnp) was calculated using a standard equation. The Standard deviation of the affected area by noise pollution ranged from ۰.۲۰۱۰ to ۰.۴۵۲۱, respectively. The equivalent noise level in the market at the ۵ selected points for working days ranged between ۷۰ - ۹۷ dBA, respectively. The noise level generated is slightly above the permissible level which is dangerous to human health. The obtained data can serve as a piece of baseline information for noise pollution modeling and control.

کلیدواژه ها:

Noise level ، Noise pollution ، Physiological ، Temporal ، Spatial