In a pond covered with duckweed, you can expect a decrease in common pollutants such as nitrogen, an increase in water clarity and water disinfection.

There will also be changes evident in the levels of ammonia, Tot K Nitrogen, Nitrite, Nitrate and Phosphorus.

The information shown in the graph below was created from samples collected from a Domestic Waste Water Secondary pond covered with duckweed.

All samples have been analysed and reported on by a NATA (National Association of Testing Authorities) approved testing body.