Measuring Pollution :)

Detection and monitoring of pollution is a process that can be done directly or indirectly

Directly: Measuring the concentration of pollutants

• Acidity of rain
• Amount of gases in atmosphere or emissions
• Soil pH
• Concentration of nitrates, phosphates, sulfates in soil and water
• Amount of organic matter in soil and water
• Amount of bacteria
• Concentration of (heavy) metals
• BOD (biochemical oxygen demand: the amount of oxygen used by microorganisms to break down organic matter in water): used to determine the pollution of water. The greater the BOD, the more pollution.

Indirectly

• Absence or presence of indicator species