Saturday, April 30, 2005

Oxygen supply and our health

Commission on Environment and Development) (1970) have reported that oxygen has remained stable in the earth's atmosphere because green plants recycle it in molecular form through photosynthetic process. For 70% of the free oxygen produced each year is thought to have came from planktonic plants in the ocean, and the remaining 30% from terrestrial vegetation of forests and grasslands.

if we should seriously pollute the sea and ocean as is already happening in coastal areas, and if we should excessively denude the forest and grasslands of the earth these we shall be in danger of upsetting the oxygen balance in the atmosphere. In other words, we must look upon the oceans, forests and grasslands as the world's oxygen tank, and we must insure their continued healthy ecological function in future.

Another important atmospheric problem of long-term concern is the increase in carbon dioxide in the atmosphere. Between 1860 to 1980 the combustion of fuel increased the CO2 contents of the air by 14% of its formerly stable level (UNEP, 1985).

the atmospheric problem may also become acute in terms of various toxic elements released into surface of air and water; carbon monoxide, sulfur dioxide, lead from automobile exhaust, hydrocarbons from industrial operations and numerous other products of modern technological societies. For example, 500 million pounds of lead are discharged into the atmosphere of the United States each year from automobile exhausts alone, (WHO, 1982)


We need balance Oxygen ( not too much, and not too little) and of course, we want less pollutant in our air and water.

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