7.8 Noise Pollution

• Noise barriers along highways have been proven to improve the quality of life for nearby residents.
• What is the definition of noise pollution?

  Excessive or unwanted sounds
• Noise pollution can cause hearing loss, stress, and sleep disturbance
• Noise pollution primarily affects human health but has no impact on wildlife

  False
• Steps to measure noise pollution levels

  1️⃣ Identify the sources of noise

  2️⃣ Use a sound level meter to measure decibels

  3️⃣ Analyze the data
• What are strategies to mitigate noise pollution?

  Sound barriers, noise regulations
• Noise control regulations aim to reduce noise levels and protect human health
• What is the purpose of analyzing case studies of successful noise reduction efforts?

  To learn effective strategies
• Noise pollution is considered a form of pollution because it can negatively affect both humans and wildlife
• Match the source of noise pollution with an example:

  Transportation ↔️ Aircraft, cars, trains

  Construction ↔️ Heavy machinery, drilling

  Industrial Activities ↔️ Factories, ventilation systems

  Residential Sources ↔️ Loud music, power tools
• Transportation noise includes cars, trucks, trains, and aircraft
• What are common sounds produced by construction activities that contribute to noise pollution?

  Hammering, drilling
• Prolonged exposure to loud noises can cause permanent hearing loss
• Arrange the health effects of noise pollution from most severe to least severe:

  1️⃣ Hearing loss

  2️⃣ Sleep disturbance

  3️⃣ Stress
• What is an example of a health effect of noise pollution caused by living near constant traffic?

  Increased stress levels
• What is one of the main negative effects of noise pollution on human health?

  Hearing loss
• Prolonged exposure to loud noises can damage the ear's ability to hear
• Loud noises can disrupt sleep patterns.
• Match the health effect of noise pollution with its description:

  Hearing loss ↔️ Damage to the ear from loud noises

  Stress ↔️ Increased stress levels due to noise

  Sleep disturbance ↔️ Disrupted sleep patterns from noise
• How does noise pollution affect wildlife communication?

  Disrupts mating calls
• Noise pollution interferes with animal communication, especially during mating or predator warnings
• High noise levels can elevate stress in wildlife, leading to reduced reproduction rates.
• Match the impact of noise pollution on wildlife with its description:

  Disrupted Communication ↔️ Prevents mating calls

  Foraging Interference ↔️ Reduces hunting success

  Elevated Stress ↔️ Raises stress hormones
• What is the definition of noise pollution?

  Excessive or unwanted sounds
• Construction sites can contribute to noise pollution.
• Major sources of noise pollution include transportation, construction, industrial activities, and residential
• Match the source of noise pollution with its example:

  Transportation ↔️ Traffic noise near highways

  Construction ↔️ Loud machinery in factories

  Industrial Activities ↔️ Hammering and drilling
• Steps to measure noise pollution levels

  1️⃣ Use a sound level meter to measure SPL

  2️⃣ Use a dosimeter to measure TWA

  3️⃣ Record measurements in decibels (dB)
• Sound level meters measure sound pressure level (SPL) in decibels
• Dosimeters are used to measure time-weighted average (TWA) exposure levels.
• Match the strategy for mitigating noise pollution with its description:

  Noise Barriers ↔️ Walls or landscaping that absorb sound

  Source Reduction ↔️ Modifying noise-generating activities

  Community Planning ↔️ Designing urban spaces to minimize noise
• Why is noise pollution considered a form of pollution?

  It harms health and environment
• Transportation, construction, industrial activities, and residential sources are major contributors to noise pollution
• Exposure to loud noise can lead to hearing loss.
• How does noise pollution affect bird mating behavior?

  Disrupts mating calls
• Match the noise pollution measurement instrument with its purpose:

  Sound Level Meter ↔️ Measures SPL in dB

  Dosimeter ↔️ Measures TWA in dB
• A sound level meter measures sound pressure level in decibels
• What does a dosimeter measure in noise pollution assessment?

  Time-weighted average
• A construction worker exposed to an average of 85 dB over an 8-hour shift requires hearing protection.
• Noise barriers are designed to absorb or reflect sound waves using materials like walls or landscaping