In nature Negative Ions are created by means of wind, sunlight, surf, waterfalls and rainstorms. Generally, a negative ion is an electronically charged molecule made up of oxygen. A positive ion in the air is a molecule that has lost its electrons through process of air pollution. In fresh country air we find up to 4000 negative ions per cubic centimetre - the size of a sugar cube. Near strong surf or close to a waterfall up to 10.000 negative ions can be found, however the number of negative ions in major capital cities at rush hour does not even reach 100.