4d - Human influcenes on the environment - Water Pollution

There is an increase in the amount of pollution due to the increasing human popluation. Some of this pollution is cause by;

• more fossil fuels being burnt for heat and power
• more food being grown
• land being taken over for industry and housing

The above have led to an increase of pollution in water;

• Sulfur Dioxide, in the air, can dissolve in water and forms an acidic solution
• Pesticides used by farmers to kill weeds and/or insects may be washed or blown into streams and/or rivers
• Nitrate fertilisers are very soluble in water and therefore cannot be easily removed from the water. They are easily washed into the rives and reservoirs by the rain