Human beings need to breathe oxygen diluted in certain quantity of inert gas for living. In the atmosphere, there is a gas mixture of, mainly, oxygen and nitrogen, in appropriate proportions. However, the air also contains other gases, vapours and aerosols that humans incorporate when breathing and whose composition and concentration vary spatially. Some of these are physiologically inert. Air …
Pollution of the air by pollutants such as dust, smoke, gas, and water vapor causes serious health problems for people. Air pollution is considered one of the most important human health risks today. It can cause short-term (acute) and long-term (chronic) diseases in the respiratory tract, heart, eyes, skin, and reproductive and nervous systems. This book highlights the importance of clean air …