Thursday, September 10, 2009

Air Pollution Part4 - Tan En Li (Group Leader)

Effects of Air Pollution to a Human Body:

Air Pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are transportation engines, power and heat generation, industrial processes, and the burning of solid waste.

The major concern with air pollution relates to its effects on humans. Since most people spend most of their time indoors, there has been increased interest in air-pollution concentrations in homes, workplaces, and shopping areas. Much of the early information on health effects came from occupational health studies completed prior to the implementation of general air-quality standards.

How Air Pollution can damage the Heart:

Sitting in traffic can certainly be infuriating enough to raise your blood pressure. But new research shows that traffic can raise your blood pressure and put your heart at risk in a more direct way - by exposing you to the pollution in exhaust fumes.

It can affect your Health:

You can’t choose the air you breathe in and you need enormous amounts of it - 26,000 breaths worth a day. That adds up to 14,000 litres or about 150 bathtubs full. So, even small amounts of pollution can really add up.

The health effects can range from triggering or worsening of asthma, eye, throat and lung irritations and respiratory diseases. These can put extra strain on other systems of the body and lead to heart and circulation problems (cardio pulmonary). Young people and the elderly are most at risk.

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