Sunday, 29 November 2015

Air Pollution

Air pollution


Presence of matter (gas, liquid, solid) or energy (heat,noise, radiation) whose nature, location,or quantity directly or indirectly alters characteristics or processes of any part of the environment, and causes (or has the potential to cause)damage to the condition, health, safety, or welfare of animals, humans, plants, or property. The air are surrounded by a blanket of air called atmosphere. Without the are, we will be burn by the intense heat of the sun during the day or frozen by the very cold temperature at night. Any additional gas, particles or odours that are introduced into the air to disort this natural balance and cause harm to living things can be called air pollution.

Causes by air pollution

 the connection between air pollution and human health is very closed and very related. Once your air are polluted there’s many things that can bring the harmful to the healthy. According to the World Health Organization (WHO), air pollution is one of the world's biggest killers. The air pollution can bring the bad effects for those who had an asthma. The asthma is the one of disease about someone who had trouble in breathing. Asthma is a chronic, sometimes debilitating condition that has no cure.  Some of these fine particles can become lodged in the lungs and could trigger asthma attacks. Studies have shown that the number of hospitalizations for asthma increases when levels of particulate matter in the air rise. Coal-fired power plants, factories, and diesel vehicles are major sources of particulate pollution. Around 81 million people live in areas that fail to meet national air quality standards for particulate matter.
Coughing and wheezing are two of the mild problems associated with inhaling PM2.5. However, this type of air pollution can also cause or worsen serious illnesses such as heart disease, chronic bronchitis, emphysema and pneumonia. Exposure to PM2.5 is associated with a significant rise in the number of premature deaths from respiratory and heart disease. It's also linked with more emergency room visits, hospitalization, and time off work and school. Long-term exposure in pregnant women can cause premature births and low birth weights.
Air pollution also give effect to the environmental. A relatively recently discovered result of air pollution are seasonal "holes" in the ozone layer in the atmosphere above Antarctica and the Arctic, coupled with growing evidence of global ozone depletion. This can increase the amount of ultraviolet radiation reaching the earth, where it damages crops and plants and can lead to skin cancerand cataracts. This depletion has been caused largely by the emission of chlorofluorocarbons (CFCs) from refrigerators, air conditioners, and aerosols. The Montreal Protocol of 1987 required that developed nations signing the accord not exceed 1986 CFC levels. Several more meetings were held from 1990 to 1997 to adopt agreements to accelerate the phasing out of ozone-depleting substances.

How to prevent air pollution

            Air pollution can be preventing by stop the open burning. Open burning is the one causes of air pollution. Open burning means burning of any materials in the open air without any enclosure nor any chimney to direct the smoke away so generated. For example, recovering metal from used electric wires or tyres, and disposal of wastes in construction sites and countryside by open burning are the common malpractice. As a member of society, you can help protect the environment by refraining from carrying out prohibited open burning activities, and to advise your staff and others to abide by the regulation. Any waste should be properly disposed of at landfills or recycled at a recycling plant with emission control equipment. If you notice any open burning activities, please report the incident to our Regional Offices (see Annex) immediately so that our
enforcement staff can take necessary legal action under the Regulation to stop further burning.

          Another ways to prevent is manage your heating and cooling. Turn your thermostat down in the winter and up in the summer whenever you are at work, sleeping or on vacation. You can also turn your water heater down to 120 degrees to save power. Make sure your insulation is up to the recommended level for your area, and insulate pipes that pass through unheated spaces. Check to see that your windows and doors are not leaking warm or cool air. To make sure your furnace and air conditioners are running efficiently, perform regular maintenance.