Noise

Noise is defined as unwanted sound that is loud, disruptive, or unpleasant to the ears. It can have negative effects on human health and well-being, as well as on the environment.

Sources of Noise

Noise can come from a variety of sources, including:

• Traffic
• Construction sites
• Industrial machinery
• Household appliances
• Recreational activities (e.g., concerts, sporting events)

Effects of Noise

Noise pollution can have several negative effects, including:

• Hearing damage
• Stress and anxiety
• Sleep disturbances
• Interference with communication
• Impact on wildlife and ecosystems

Measuring Noise

Noise is measured in decibels (dB). The higher the decibel level, the louder the noise. Exposure to noise levels above 85 dB for an extended period of time can cause hearing damage.

Ways to Control Noise

There are several ways to control and reduce noise pollution, including:

• Using sound barriers and insulation
• Implementing noise regulations and zoning laws
• Using quieter technologies and equipment
• Creating green spaces to absorb and block noise

Study Guide Questions

1. What is the definition of noise?
2. List three sources of noise pollution.
3. What are the negative effects of noise pollution on human health?
4. How is noise measured, and what is the unit of measurement?
5. What are some ways to control and reduce noise pollution?