ENGENVI Exam 3

• Noise Pollution


  Unwanted or excessive sound that can have deleterious effects on human health, wildlife, and environmental quality
• Manila City Ordinance No. 8357


  This ordinance regulates noise levels from various sources
• Sources regulated by the ordinance

  • Construction activities (time restrictions, noise limits)
  • Entertainment establishments (soundproofing requirements, operating hours)
  • Amplified sound devices (permit requirements, noise limits)
• Challenges in Implementation and Enforcement

  • EMB and LGUs may lack the budgetary resources and personnel needed for effective noise monitoring, enforcement, and public education campaigns
  • This can limit their ability to conduct regular inspections, investigate complaints, and implement comprehensive noise control programs
• Sources of Noise Pollution

  • Transportation
  • Construction activities
  • Industrial processes
  • Entertainment establishments
• Effects of Noise Pollution

  • Negatively impact human health (hearing loss, sleep disturbances, stress)
  • Negatively impact the environment (disturbs wildlife)
  • Negatively impact overall quality of life
• Control Measures


  • Implementing noise control technologies
  • Managing land use
  • Promoting quieter practices
• Regulatory Framework


  The Philippine Clean Air Act acknowledges noise as a pollutant, while EMB regulations set noise standards and enforcement mechanisms. Local government units further supplement these regulations with specific ordinances.
• Stakeholders involved in addressing noise pollution

  • Governments
  • Industries
  • Individuals
• Importance of Collective Effort

  1. Support noise control policies

  2. Embrace quieter alternatives

  3. Report noise violations

  4. Spread awareness
• The World Health Organization (WHO) threshold for noise pollution is above 75 dB
• Noise pollution impairs the ability of animals to survive, according to Nathanson & Berg (2024)
• Noise pollution is not associated with improved memory and attention span in humans
• Aircraft engines are a common source of transportation noise contributing to noise pollution
• Noise pollution pollutes oceans with chaotic sounds, which affects marine animals relying on echolocation, according to Nathanson & Berg (2024)
• Sound Insulation and Soundproofing


  Technology involving materials and techniques to reduce the transmission of sound through walls and ceilings
• Philippine Clean Air Act of 1999


  Law that addresses noise pollution as an air pollutant and provides general provisions for noise control in the Philippines
• Noise Barriers and Enclosures


  Purpose is to block or absorb sound waves
• Limited resources is identified as a challenge in the implementation and enforcement of noise control regulations in the Philippines
• According to the WHO, noise becomes harmful above 55 dB