Environmental Engineering (Noise Pollution) Midterm

Florence Nightingale.

Who recognized noise as a health hazard in 1859 when she wrote “Unnecessary noise is the most cruel abuse of care which can be inflicted on either the sick or the well”.?

Unnecessary noise is the most cruel abuse of care which can be inflicted on either the sick or the well.

What did Florence Nightingale wrote when she discovered noise a health hazard?

1859

When did Florence Nightingale discovered noise as a health hazard?

Noise Pollution.

It refers to the excessive and disruptive noise that interferes with normal activities and quality of life. It is typically caused by industrial activities, transportation systems (such as road traffic, airplanes, and trains), construction work, and recreational activities (like loud music or events).

Industrial Activities, Transportation System (Road Traffic, Airplanes, and Trains.), Construction Work, and Recreational Activities (Loud Music or Events.).

What are the typical causes of noise pollution?

Urban Traffic, Industrial Machinery, Construction Sites, Airports and Railways, Recreational Activities.

What are the sources of noise pollution?

Urban Traffic.

In areas, the volume of vehicles on roads can be extremely high, especially during peak commuting hours. The frequent acceleration and deceleration of vehicles, as well as honking of horns contribute to the noise. Infrastructures like bridges, tunnels, and elevated roadways can amplify noise due to reverberation.

Industrial Machinery.

Equipment like compressors, generators, pumps, motors, fans, grinders, drills, presses, and conveyor systems. Some facilities have multiple machines operating simultaneously. These noises can be continuous or intermittent. This noise can affect surrounding communities and disrupt daily activities, and even affect workers and lead to occupational hearing loss.

Construction Sites.

It can contribute to noise pollution particularly in urban and densely populated areas. It generates a lot of noise from equipment operation and construction-related activities. Depending on local regulations and project deadlines, these noises can be continuous or intermittent.

Airport and Railways.

These are significant sources of noise particularly for communities located near these transportation hubs. Takeoffs, landings, and taxiing activities are the primary sources for airports. Types of engines and aerodynamics can also be a factor of noise. Locomotive engines, railway infrastructure, and horns can contribute to noise pollution in railways.

Takeoffs, Landings, and taxiing activities.

What are the primary source of noise for airport?

Locomotive Engines, Railway Infrastructure, and Horns.

What are the primary source of noise for railways?

Recreational Activities.

Activities such as outdoor concerts, music festivals, sports events, and other large gatherings can generate significant noise levels. The noise from these events can travel over long distances, impacting nearby neighborhoods and disrupting the peace and quiet of residential areas.

Outdoor Concerts, Music Festivals, Sports Events, and Other Large Gathering.

What are the primary source of noise for recreational activities?

Hearing Loss, Sleep Disturbance, Increased Stress Levels, Hypertension, Cardiovascular Diseases, Impaired Cognitive Function.

What are the health impacts of prolonged exposure to high levels of noise?

Residential Areas, Commercial Areas, Industrial Areas, Mixed-Use Areas, Institutional Areas.

What are the type of area to regulate noise pollution?

Residential Areas.

What is the area that has 50 decibels from 6 to 9 in daytime and has 45 decibels from 9 to 6 in nighttime?

Commercial Areas.

What is the area that has 55 decibels from 6 to 9 in daytime and has 50 decibels from 9 to 6 in nighttime?

Industrial Areas.

What is the area that has 70 decibels from 6 to 9 in daytime and has 65 decibels from 9 to 6 in nighttime?

Other Areas (Mixed-Use and Institutional Areas.).

What is the area that has 60 decibels from 6 to 9 in daytime and has 55 decibels from 9 to 6 in nighttime?

Daytime is 50 and nighttime is 45.

What are the maximum permissible noise level residential areas are allowed?

Daytime is 55 and nighttime 50.

What are the maximum permissible noise level commercial areas are allowed?

Daytime is 70 and nighttime is 65.

What are the maximum permissible noise level industrial areas are allowed?

Daytime is 60 and nighttime is 55.

What are the maximum permissible noise level mixed and institutional areas are allowed?

Compressors, Generators, Pumps, Motors, Fans, Grinders, Drills, Presses, and Conveyor System

What are the equipment of industrial machinery?