dimanche 29 mars 2015



this is the main and the popular types of pollution :


*air pollution : air pollution is caused by harmful gases such as carbon dioxide,Most of the pollution is caused by factories. Today air pollution has become dangerous to humans. Heavy air pollution may cause breathing problems such as asthma or other health problems.


*water pllution : water pollution is the presence of harmful materials in water such as waste from farms and factories . pollution causes harm to organisms living in water and can also harm people's health . in extreme cases problems such as cancer .

  
 *sound pollution : Sound pollution is also known as noise pollution.The harmful noises in the environment,such as loud speakers,etc.Noise pollution can cause ear problems.Noise pollution includes loud sounds that are harmful to humans and animals.



*soil pollution : Soil pollution is when man-made chemicals, such as heavy metals get into thesoil. These chemicals come from industrial activities and from bad waste disposal .Soil pollution may cause health risks. The chemicals can produce harmful vapors, or they can contaminate water supplies underneath the polluted soil.




the health effectes of pollution :