About available phosphates
Phosphorus (P) is an essential nutrient for the growth of plants and animals. Phosphate levels can be measured as total phosphates and available phosphates.
Test the available phosphate levels using a Smart 2 colorimeter following the method (pdf – 100 kB).
Record your results (Word 200 kB).
How do your water sample results compare to the ANZECC Water Quality Guidelines for available phosphates? (Assume the sample is from an upland river.)
It is important to monitor nutrient levels to ensure that eutrophication is not accelerated.
