Indoor air pollution

Numerous scientific studies show that indoor of homes and businesses are the source of potentially harmful substances called indoor air pollutants. They come from variety of sources. Indoor levels are often much higher than outdoor levels and most people spend the bulk of their lives indoors. This is the biggest single contributor to health-damaging indoor air pollution in cities. Regulation of fumes emited by vehicles and factories has something to offer by way of solution, but what is needed most is increased health by better housing and by proper planning of cities and roads. The problem cannot be solved simply by academic laboratory research. An air pollutant is seldom present in outdoor air on its own and normally the air contains a mixture of several pollutants. The composition varies according to the prerequisites. It has not yet been determined how the various substances affect human beings when they interact. Main groups of pollutants were subjects of our special interest as nitrogen oxides, volatile organic compounds, carbon monoxide and sulphur dioxide.