Noise Pollution

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23 Terms

1

Sound

A form of energy

Longitudinal wave

Compression size indicates how much energy the sound waves have.

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2

Functions of the Ear

Hearing and Balance

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3

Decibel (dB)

Unit for intensity or loudness of sound.

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4

Faint

0 db - 40 db

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5

Moderate

50 db - 60db

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6

Loud

70 db

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7

Very Loud

80 db - 100 db

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8

Extremely Loud

110 db - 140 db

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9

At what decibel can your ears tolerate up to?

91 Decibels

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10

At what decibel can damage occur within 15 minutes of exposure?

100 Decibels

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11

At what decibel can damage can occur with only one minute of exposure?

112 Decibels

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12

At what decibel can cause immediate nerve damage?

140 ecibels

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13

Transportation

Consists of surface transport vehicles (air and land) and traffic conditions.

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14

Commercial and Industrial

Printing press, manufacturing industries, construction and machineries (textile mills, conveyors, etc.)

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15

Household

Includes home appliances like radio

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16

Military

Consists of explosives

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17

Physical Effect

Ruptured Eardrum

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18

Physiological Effect

  1. Headache by dilating blood vessels of the brain.

  2. Increase of heart rate

  3. Narrowing of arteries

  4. Fluctuations in the arterial blood pressure

  5. Decrease in heart output

  6. Pain in the heart

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19

No effects

Up to 23 Decibels

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20

Stress, tension, psychological effects especially at the upper range, delay or interference with sleep resulting in fatigue.

30 to 60 Decibels

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21

Damage to health, psychological and vegetative (disturbance in stomach-gall functions, pains in muscles, high blood pressure, disturbance in sleeping)

60 to 90 Decibels

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22

Damages to health and ontological (ear diseases) effects

60 to 120 Decibels

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23

Painful effects in long run, traumatic hearing loss and physical damage inside the ear.

Above 120 Decibels

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