Types of Homotoxins
Types of Homotoxins
Types of Homotoxins
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Noise pollution<br />
• At levels in excess <strong>of</strong> those at which the auditory apparatus<br />
suffers damage one starts to see the onset <strong>of</strong> temporary<br />
deafness and acoustic trauma<br />
• Loss <strong>of</strong> balance<br />
• Irritability<br />
• Nervousness<br />
• Disturbances <strong>of</strong> heart rhythm<br />
• Loss <strong>of</strong> concentration<br />
© IAH 2007<br />
37<br />
Excessive noise levels, especially when longer time exposed to, may create ear damage (Corti<br />
organ: hair cells damaging). Sounds and noises are present all around us in different levels. Only<br />
high levels can injure.<br />
0 dB: Faintest sound heard by human ear<br />
30 dB: Whisper, quiet library.<br />
60 dB Normal conversation, sewing machine, typewriter<br />
90 dB Lawnmower, shop tools, truck traffic; 8 hours per day is the maximum exposure to protect<br />
90% <strong>of</strong> people.<br />
100 dB Chainsaw, pneumatic drill, snowmobile; 2 hours per day is the maximum exposure without<br />
protection<br />
115 dB Sandblasting, loud rock concert, auto horn; 15 minutes per day is the maximum exposure<br />
without protection<br />
140 dB Gun muzzle blast, jet engine; noise causes pain and even brief exposure injures<br />
unprotected ears. Maximum allowed noise with hearing protectors.<br />
Lots <strong>of</strong> symptoms can be causes by permanent air pollution:<br />
•Deafness<br />
•Irritability<br />
•Nervousness<br />
•Loss <strong>of</strong> balance<br />
•Heart rhythm disturbances<br />
•Concentration loss<br />
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