Denmark vs Poland: Average ammonium concentration in freshwater

Denmark
0.0961 milligrams per liter
in 2021
Poland
0.0885 milligrams per liter
in 2021
Denmark rank
13th
Poland rank
15th

Average ammonium concentration in freshwater over time

  • Denmark
  • Poland
0.050.0750.10.1250.150.175199220062021

How they compare

Denmark currently reports 0.0961 milligrams per liter against 0.0885 milligrams per liter in Poland, a difference of 0.0076 milligrams per liter.

That makes Denmark's figure about 1.1 times Poland's.

The two have swapped places 3 times across 24 shared years of data; in 1998 it was Poland ahead.

Denmark ranks 13th and Poland ranks 15th of 32 countries.

Across the 4 decades both report, Denmark averaged higher in 1 and Poland in 3.

Head to head by decade

Decade Denmark Poland Difference Ahead
1990s 0.0658 milligrams per liter 0.1592 milligrams per liter 0.0934 milligrams per liter Poland
2000s 0.0772 milligrams per liter 0.0946 milligrams per liter 0.0174 milligrams per liter Poland
2010s 0.0774 milligrams per liter 0.0916 milligrams per liter 0.0142 milligrams per liter Poland
2020s 0.1011 milligrams per liter 0.0872 milligrams per liter 0.0139 milligrams per liter Denmark

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average ammonium concentration in freshwater, Denmark or Poland?
Denmark, at 0.0961 milligrams per liter against 0.0885 milligrams per liter in Poland as of 2021.
What is the difference in average ammonium concentration in freshwater between Denmark and Poland?
0.0076 milligrams per liter, with Denmark ahead.
How many years of comparable data are there for Denmark and Poland?
24 years are reported by both, from 1998 to 2021.
How do Denmark and Poland rank globally for average ammonium concentration in freshwater?
Denmark ranks 13th and Poland ranks 15th of 32 countries.
Where does this data come from?
European Environment Agency (2023) – with minor processing by Our World in Data, published as Average ammonium concentration in freshwater. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Denmark vs Poland: Average ammonium concentration in freshwater. Statizoid, drawing on European Environment Agency (2023) – with minor processing by Our World in Data. Retrieved 24 September 2026, from https://environment.statizoid.com/compare/average-ammonium-concentration-in-freshwater/denmark/poland/

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About this data

Indicator
Average ammonium concentration in freshwater
Unit
milligrams per liter
Source
European Environment Agency (2023) – with minor processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
32 places, 693 data points, 1992–2021
Last refreshed

Average annual concentration of ammonium in lakes.