Evaluation of Noise Pollution Levels around Major Transportation Terminals in Kano Metropolis

CHAPTER ONE

1.0 Introduction

Noise pollution has become one of the most overlooked environmental issues in rapidly growing cities across Nigeria. As urbanization accelerates, transportation systems expand to accommodate increased human and commercial activities. However, these developments often generate high levels of noise, particularly around bus parks, motor terminals, and other transport hubs. Prolonged exposure to excessive noise can lead to health problems such as hearing loss, stress, and hypertension, as well as reduce the quality of life in affected communities.

Kano Metropolis, one of the largest urban centers in Nigeria, experiences heavy traffic congestion and continuous transportation-related activities. Major terminals such as the Sabon Gari Motor Park, Kofar Ruwa, and Yankura Garage are busy throughout the day and night. The growing number of vehicles, coupled with inadequate traffic control, contributes to high noise levels. Evaluating the extent of this noise pollution is crucial for protecting public health and improving urban environmental management.

1.1 Background to the Study

Noise is defined as unwanted sound that disrupts normal human activities or causes discomfort. The World Health Organization (WHO) identifies continuous exposure to noise levels above 70 decibels as harmful to human health (WHO, 2020). Sources of urban noise include vehicle engines, horns, loudspeakers, and construction activities. Unfortunately, noise pollution is often ignored in environmental management policies in many developing countries, including Nigeria (Ogunba & Adeyemi, 2021).

Kano Metropolis serves as a major commercial and transportation hub in northern Nigeria. The city attracts traders, travelers, and workers from neighboring states daily. Consequently, its major motor parks and terminals are often overcrowded with vehicles and people. Continuous noise from engines, hawkers, and loud public announcements creates a stressful environment for workers and residents nearby. In addition, poorly planned urban layouts and weak enforcement of noise control regulations worsen the problem.

To address this growing challenge, it is necessary to measure and evaluate noise pollution levels around key transport terminals. The results will help determine whether existing noise levels exceed acceptable limits and guide the development of mitigation strategies.

1.2 Statement of the Problem

In recent years, noise levels in Kano have increased significantly due to uncontrolled traffic activities and population growth. Many transportation terminals operate with little or no environmental regulation. People who work or live near these areas are constantly exposed to loud sounds that exceed permissible standards. Over time, this exposure can lead to hearing impairment, stress, and reduced productivity.

Although noise pollution has been recognized as a serious environmental issue in Nigeria, limited studies have been conducted in northern cities such as Kano. Without reliable data, urban planners and policymakers cannot effectively regulate or control noise emissions. Therefore, there is an urgent need to evaluate noise pollution levels around major transportation terminals in Kano Metropolis to promote environmental health and sustainable urban living.

1.3 Aim and Objectives of the Study

The main aim of this study is to evaluate noise pollution levels around major transportation terminals in Kano Metropolis.

The specific objectives are to:

1. Measure noise levels at selected transportation terminals within Kano Metropolis.

2. Compare recorded noise levels with WHO and Federal Ministry of Environment standards.

3. Identify the main sources and periods of peak noise generation.

4. Recommend strategies to reduce noise pollution in transportation areas.

1.4 Research Questions

1. What are the existing noise levels around major transportation terminals in Kano?

2. How do these levels compare with national and international standards?

3. Which sources and periods contribute most to noise pollution in the study area?

4. What measures can help reduce noise pollution in Kano Metropolis?

1.5 Significance of the Study

The study provides valuable information on the extent of noise pollution within Kano’s major transportation terminals. The findings will assist environmental agencies, city planners, and transport authorities in formulating policies to control noise and protect public health. Moreover, the research raises public awareness about the harmful effects of prolonged noise exposure and emphasizes the importance of adopting noise reduction technologies.

Additionally, this study supports Sustainable Development Goal (SDG) 3, which focuses on ensuring good health and well-being, and SDG 11, which promotes sustainable cities and communities. By identifying problem areas and proposing solutions, the research contributes to creating a healthier and more sustainable urban environment in Kano Metropolis.

1.6 Scope of the Study

This study focuses on selected transportation terminals within Kano Metropolis, including Sabon Gari Motor Park, Kofar Ruwa, and Yankura Garage. Noise level measurements will be taken at different times of the day to capture variations during peak and off-peak periods. The study limits its analysis to environmental noise generated from transportation activities and excludes other urban noise sources such as industries or entertainment centers.

1.7 Definition of Key Terms

• Noise Pollution: Unwanted or harmful sound that negatively affects health or the environment.

• Decibel (dB): A unit used to measure the intensity of sound.

• Transportation Terminal: A designated area where passengers board and alight from vehicles.

• Sound Level Meter: An instrument used to measure noise intensity.

• Sustainable Urban Environment: A city system that meets human needs while minimizing negative environmental impacts.

References

Ogunba, B. M., & Adeyemi, T. A. (2021). Urban noise pollution and environmental health in Nigeria. Journal of Environmental Science and Management, 14(2), 88–103.
World Health Organization (WHO). (2020). Environmental noise guidelines for the European region. WHO Press.
Usman, A. M., & Sani, H. I. (2022). Assessment of traffic noise pollution in Kano Metropolis, Nigeria. Nigerian Journal of Environmental Research, 17(3), 72–86.