soil contamination

Soil contamination may have occurred if the mixing of foreign substances that enter in it. The entry of foreign matter into the soil can be made ​​directly or through the air and water. Thus the causes of air pollution and water will also cause soil pollution.

Soil contamination can occur in three ways, namely:

A. Pollution directly

Occurs when:

- Excessive use of fertilizers

- Excessive use of pesticides and insecticides

- The indiscriminate disposal of plastic waste

B. Soil contamination by air

If the polluted air pollutants from the air, it will be absorbed by the soil with rain water. As a result, the organism lives will be disrupted.

C. Ground water contamination through

Waste water and rain water it will fall to the ground and seep into the ground. If the wastewater contains substances pollutants, the pollutant particles in the water will change the structure of the soil, so it will disrupt the lives of soil organisms.

Soil contamination will interfere with:

1. cycle of O2 and CO2

2. N2 cycle

3. in the natural food cycle

4. death of microbial or bacterial decomposition.