Pollution and Health
Effect of Loud Noise on Blood Pressure
Pollution and health are extremely connected so we would expect to find something that has a bearing on blood pressure levels. Well after digging much deeper below the surface rather than just accepting the normal reasons for blood pressure, I came across some strong evidence of different environmental problems affecting health that I think may interest my readers.
What is our normal noise level toleration? Around 35 – 40 decibels (dB). Now if we consider what happens to the blood pressure of those who live near airports and the levels of noise that cause the changes, we can roughly determine what levels to avoid or muffle, if possible, in and around our homes and at work.
Night time Noise Pollution and Health
Lars Jarup and other researchers of the Imperial College in London tested 140 people who lived near London Heathrow and other major European airports. When they measured the blood pressure every 15 minutes during the night they noticed it rose when the noise level in their rooms exceeded 35 dB. Sudden high blood pressure! When they measured the blood pressure when aircraft passed overhead, the systolic pressure rose by an average of 6.2 mmHg and the average rise in diastolic pressure was 7.4 mmHg.The outside noise threshold of an aircraft is 80 dB that can be from 45 to 60 indoors. The louder the noise the higher the blood pressure readings. The researchers of another similar study noticed that for ever 5 decibels that noise exceeded the threshold of 35 Decibels, blood pressure was raised by 0.66.Now all of us are different, so some sounds that would irritate me might not irritate you and visa-verse. We need to take that into consideration. Researchers have noticed that different noises of the same decibel have different effects on individuals.So what sounds irritate or stress you that can get pretty loud?Did you know that snoring can reach a nerve racking 90 decibels? That is incredible, considering a jack hammer reaches about 100 dB. What is worse, is that night time noise has an effect on our blood pressure more than day time noise.Night clubs and loud music can reach decibels of 110 to 120 decibels. If you have a noisy neighbour, it might do you good to let them know they could actually be damaging your health.Telephone ringing is around 60 decibels for the normal ring tone. Even if you become tolerant of persistent loud noise pollution, research has shown that men increase the risk of heart attack by 50% and women had 3 times that risk due to prolonged exposure.Heavy traffic can peak 90 decibels, so if you find you are in an office overlooking heavy traffic all day, you may decide to close windows and turn on the air conditioning. But if it`s noisy it can be sending out 75 decibels of noise. Most annoying! What would we give for a quiet life eh?The more modern and fast society becomes the noisier they get. People seem to feel the need to have music blasting all day long. Do they find silence a problem, always wanting to fill the air with sound or talk. Why? Remember the saying! Silence is Golden!We will suffer less stress if we create a more peaceful and quieter environment to work, relax and sleep. It will also help us to take control of our blood pressure is we try and eliminate as much noise as we can from our lives.Another topic that may interest you is the subject of air pollution and health here…
| Now we all don`t live in close proximity of an airport but taking a look at the study will help us to see what sort of sound measurements and types of sound, no matter where they are coming from, can affect our blood pressure consciously and unconsciously. |  |
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Snoring is probably one of the most disturbing and annoying of noise pollution. Relationships have been destroyed because of it. |
| Day time Noise Pollution and Health
I have been in offices where the telephones are left ringing for a considerable length of time. |
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