NOISE POLLUTION IN HCM
2 main parts
• Solutions to noise
• Some bad effects of noise
Some bad effects of noise
Physical effect
Mental effect
Physical effect
1. Decrease quality of hearing
eardrum
0 – 90 decibels
>120 dB (pain)
>150 dB (deaf)
2.Make brain stressful gradually
Mental effect
• Cannot concentrate on working
• Become angry, irritated easily
NOISE SOLUTIONS
1. Restrict vehicular horns
2. Obey traffic rules about noise
3. Use earplugs
earplug
4. Don’t talk , laugh too loudly
2 main parts
• Solutions to noise
• Some bad effects of noise
Thank for your listening