Question

Environmental Engineering:

Of the four water tests performed in this exercise, which is the least important for determining if water is safe to drink? Explain why.

Test 1: Phosphate

Test 2: Nitrate

Test 3: pH Test

Test 4: Coliform Bacteria

Answer 1

• Answer test 2
• The test of nitrate  is the least important for determining if water is safe to drink because the presence of nitrate shows the past pollution in water but now water isfis from pollution
• The most important is that. Water is free from any disease causing bacteria so we can't ignore test 4 coliform bacteria test
• Test of PH pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.so it becomes necessary to test PH
• phosphate test is also important because too much phosphate can cause health problems, such as kidney damage and osteoporosis. .