2.1 Monitoring Water Quality
Have you ever considered how much water you use in a typical day? week? year?
The way we use our water contributes to the quality of water we have on earth.
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Bioindicators (fish and insects) can be used as standards for evaluating water quality
1st-class water : It is clean and odorless so it can be used as drinking water after going through a simple purification process.
2nd-class water : It can be used for drinking, bathing, and swimming. 3rd-class water : It is yellowish brown muddy water. It has sand and pebbles at its bottom so it is used as industrial water. 4th-class water : It is seriously polluted so swimming in this water can cause skin troubles. 5th-class water : It is very dirty so no organisms can live in the water. |
2.2 Monitoring Air Quality
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2.3 Monitoring the Atmosphere
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