Average ammonium concentration in freshwater in Denmark
Denmark: Average ammonium concentration in freshwater was 0.0961 milligrams per liter in 2021. ▼ Falling
Average ammonium concentration in freshwater in Denmark, 1992–2021
Source: European Environment Agency (2023) – with minor processing by Our World in Data. Measured in milligrams per liter.
Analysis
Denmark recorded 0.0961 milligrams per liter for average ammonium concentration in freshwater in 2021.
The figure is down 9.5% on the previous year and up 11.5% over ten years.
Over the whole period, average ammonium concentration in freshwater in Denmark peaked at 0.1808 milligrams per liter in 1996 and was at its lowest, 0.0584 milligrams per liter, in 1995.
That places Denmark 13th out of 32 countries with data for 2021, putting it in the middle of the range.
The long-run direction has been consistently falling across the 30 years of available data.
Average ammonium concentration in freshwater in Denmark, year by year
| Year | milligrams per liter | Change |
|---|---|---|
| 1992 | 0.0963 milligrams per liter | — |
| 1993 | 0.0886 milligrams per liter | -8.1% |
| 1994 | 0.0648 milligrams per liter | -26.8% |
| 1995 | 0.0584 milligrams per liter | -9.9% |
| 1996 | 0.1808 milligrams per liter | +209.9% |
| 1997 | 0.1028 milligrams per liter | -43.2% |
| 1998 | 0.0653 milligrams per liter | -36.4% |
| 1999 | 0.0662 milligrams per liter | +1.4% |
| 2000 | 0.0624 milligrams per liter | -5.8% |
| 2001 | 0.0593 milligrams per liter | -5.0% |
| 2002 | 0.0664 milligrams per liter | +12.0% |
| 2003 | 0.0863 milligrams per liter | +30.0% |
| 2004 | 0.0892 milligrams per liter | +3.4% |
| 2005 | 0.0962 milligrams per liter | +7.8% |
| 2006 | 0.1062 milligrams per liter | +10.5% |
| 2007 | 0.0683 milligrams per liter | -35.7% |
| 2008 | 0.0589 milligrams per liter | -13.8% |
| 2009 | 0.0791 milligrams per liter | +34.4% |
| 2010 | 0.1022 milligrams per liter | +29.2% |
| 2011 | 0.0862 milligrams per liter | -15.7% |
| 2012 | 0.0596 milligrams per liter | -30.9% |
| 2013 | 0.0637 milligrams per liter | +7.0% |
| 2014 | 0.0649 milligrams per liter | +1.8% |
| 2015 | 0.0656 milligrams per liter | +1.2% |
| 2016 | 0.0639 milligrams per liter | -2.6% |
| 2017 | 0.0646 milligrams per liter | +1.1% |
| 2018 | 0.0899 milligrams per liter | +39.1% |
| 2019 | 0.1129 milligrams per liter | +25.5% |
| 2020 | 0.1061 milligrams per liter | -6.0% |
| 2021 | 0.0961 milligrams per liter | -9.5% |
Denmark compared with similar countries
- Denmark's 0.0961 milligrams per liter is above the median for Europe & Central Asia, which is 0.0703 milligrams per liter, 1.4× the median. (31 countries reporting)
- Denmark's 0.0961 milligrams per liter is above the median for high income countries, which is 0.0673 milligrams per liter, 1.4× the median. (28 countries reporting)
Biggest year-on-year movements
Years where Average ammonium concentration in freshwater in Denmark changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1996 | +209.9% | 0.0584 milligrams per liter | 0.1808 milligrams per liter |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0.0904 milligrams per liter | 0.0584 milligrams per liter | 0.1808 milligrams per liter | 8 |
| 2000s | 0.0772 milligrams per liter | 0.0589 milligrams per liter | 0.1062 milligrams per liter | 10 |
| 2010s | 0.0774 milligrams per liter | 0.0596 milligrams per liter | 0.1129 milligrams per liter | 10 |
| 2020s | 0.1011 milligrams per liter | 0.0961 milligrams per liter | 0.1061 milligrams per liter | 2 |
Countries ranked near Denmark
More environment data for Denmark
- Historical exposure to drought — Land soil moisture anomaly -2.66 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -2.67 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.696 °C (2025)
- Temperature change 2.29 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -1.75 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.0189 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is average ammonium concentration in freshwater in Denmark?
- Average ammonium concentration in freshwater in Denmark was 0.0961 milligrams per liter in 2021, according to European Environment Agency (2023) – with minor processing by Our World in Data.
- What is the highest average ammonium concentration in freshwater recorded in Denmark?
- The highest recorded value was 0.1808 milligrams per liter in 1996.
- What is the lowest average ammonium concentration in freshwater recorded in Denmark?
- The lowest recorded value was 0.0584 milligrams per liter in 1995.
- How does Denmark rank for average ammonium concentration in freshwater?
- Denmark ranks 13th out of 32 countries with data for 2021.
- Is average ammonium concentration in freshwater rising or falling in Denmark?
- Over the last ten years it is up 11.5%. The long-run trend across the full record is falling.
- Where does this Denmark data come from?
- The figures come from European Environment Agency (2023) – with minor processing by Our World in Data, published as part of Average ammonium concentration in freshwater. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 30 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Average annual concentration of ammonium in lakes.