http://www.water-research.net/Watershed/ammonia.htm

Ammonia levels in excess of the recommended limits may harm aquatic life. Ammonia toxicity is thought to be one of the main causes of unexplained losses in ...

https://www.alken-murray.com/TESTS01.htm

If large quantities of fish are suddenly added to the water body (such as during stocking), the ammonia level can spike because the natural bacteria that degrade  ...

https://www.epa.gov/wqc/aquatic-life-criteria-ammonia

Mar 13, 2019 ... EPA's 2013 ammonia criteria reflect new data on sensitive freshwater ... When ammonia is present in water at high enough levels, it is difficult ...

https://www.who.int/water_sanitation_health/dwq/ammonia.pdf

Originally published in Guidelines for drinking-water quality, 2nd ed. .... The presence of elevated ammonia levels in raw water may interfere with the operation ...

https://www.wqa.org/learn-about-water/common-contaminants/ammonia

Ammonia has been used in municipal treatment systems for over 70 years to prolong the ... Contaminant, In Water As, Maximum Contaminant Level*. Ammonia ...

https://www.waterboards.ca.gov/water_issues/programs/swamp/docs/cwt/guidance/3310en.pdf

NH3 and NH4. + . Total ammonia is what is measured analytically in water. ... Check the following section on water quality objectives for levels that should not be.

http://www.purewateroccasional.net/wtiammonia.html

Ammonia gets into water supplies most frequently as runoff in agricultural ... as this would cause an ammonia spike and lead to elevated ammonia levels in the ...

http://public.health.oregon.gov/HealthyEnvironments/DrinkingWater/Monitoring/Documents/health/ammonia.pdf

0.4 mg/l (ppm) of ammonia to water to increase and extend the disinfecting ability ... maximum contaminant level (MCL) for ammonia in drinking water.

https://www.wikihow.com/Lower-Ammonia-Levels-in-a-Fish-Tank-if-They-Are-Not-Very-High

Mar 29, 2019 ... By measuring your tank's water and making the necessary adjustments, you can help lower ammonia levels back down to a safe, manageable ...

https://www.aquaread.com/need-help/what-are-you-measuring/ammonium-ammonia/

Ammonia is found naturally in water, but if it is found at higher than natural levels this is a sign of contamination. Ammonia levels higher than around 0.1 mg/L ...