Average nitrate concentration in freshwater in Greece
Greece: Average nitrate concentration in freshwater was 115.65 milligrams per liter in 2021. ◆ Volatile
Average nitrate concentration in freshwater in Greece, 1999–2021
Source: European Environment Agency (2023) – with minor processing by Our World in Data. Measured in milligrams per liter.
Analysis
The most recent figure for average nitrate concentration in freshwater in Greece is 115.65 milligrams per liter, measured in 2021.
Compared with earlier readings it is up 0.7% on the previous year and down 19.4% over ten years.
Over the whole period, average nitrate concentration in freshwater in Greece peaked at 151.89 milligrams per liter in 2015 and was at its lowest, 15.5 milligrams per liter, in 1999.
Greece ranks 1st of 34 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Average nitrate concentration in freshwater in Greece, year by year
| Year | milligrams per liter | Change |
|---|---|---|
| 1999 | 15.5 milligrams per liter | — |
| 2000 | 15.5 milligrams per liter | +0.0% |
| 2001 | 15.5 milligrams per liter | +0.0% |
| 2003 | 15.62 milligrams per liter | +0.8% |
| 2004 | 15.62 milligrams per liter | +0.0% |
| 2005 | 20.67 milligrams per liter | +32.3% |
| 2006 | 24.25 milligrams per liter | +17.3% |
| 2007 | 21.96 milligrams per liter | -9.4% |
| 2008 | 19.52 milligrams per liter | -11.1% |
| 2009 | 16.09 milligrams per liter | -17.6% |
| 2012 | 143.51 milligrams per liter | +792.1% |
| 2013 | 142.2 milligrams per liter | -0.9% |
| 2014 | 136.34 milligrams per liter | -4.1% |
| 2015 | 151.89 milligrams per liter | +11.4% |
| 2016 | 151.46 milligrams per liter | -0.3% |
| 2017 | 112.73 milligrams per liter | -25.6% |
| 2018 | 109.22 milligrams per liter | -3.1% |
| 2019 | 113.12 milligrams per liter | +3.6% |
| 2020 | 114.79 milligrams per liter | +1.5% |
| 2021 | 115.65 milligrams per liter | +0.7% |
Greece compared with similar countries
- Greece's 115.65 milligrams per liter is above the median for Europe & Central Asia, which is 15.9 milligrams per liter, 7.3× the median. (34 countries reporting)
- Greece's 115.65 milligrams per liter is above the median for high income countries, which is 16.12 milligrams per liter, 7.2× the median. (29 countries reporting)
Biggest year-on-year movements
Years where Average nitrate concentration in freshwater in Greece 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 |
|---|---|---|---|
| 2012 | +792.1% | 16.09 milligrams per liter | 143.51 milligrams per liter |
| 2005 | +32.3% | 15.62 milligrams per liter | 20.67 milligrams per liter |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 15.5 milligrams per liter | 15.5 milligrams per liter | 15.5 milligrams per liter | 1 |
| 2000s | 18.3 milligrams per liter | 15.5 milligrams per liter | 24.25 milligrams per liter | 9 |
| 2010s | 132.56 milligrams per liter | 109.22 milligrams per liter | 151.89 milligrams per liter | 8 |
| 2020s | 115.22 milligrams per liter | 114.79 milligrams per liter | 115.65 milligrams per liter | 2 |
Countries ranked near Greece
More environment data for Greece
- Historical exposure to drought — Land soil moisture anomaly 3.36 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 3.43 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.43 °C (2025)
- Temperature change 1.95 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.28 % 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 -1.16 % 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 nitrate concentration in freshwater in Greece?
- Average nitrate concentration in freshwater in Greece was 115.65 milligrams per liter in 2021, according to European Environment Agency (2023) – with minor processing by Our World in Data.
- What is the highest average nitrate concentration in freshwater recorded in Greece?
- The highest recorded value was 151.89 milligrams per liter in 2015.
- What is the lowest average nitrate concentration in freshwater recorded in Greece?
- The lowest recorded value was 15.5 milligrams per liter in 1999.
- How does Greece rank for average nitrate concentration in freshwater?
- Greece ranks 1st out of 34 countries with data for 2021.
- Is average nitrate concentration in freshwater rising or falling in Greece?
- Over the last ten years it is down 19.4%. The long-run trend across the full record is volatile.
- Where does this Greece data come from?
- The figures come from European Environment Agency (2023) – with minor processing by Our World in Data, published as part of Average nitrate concentration in freshwater. Statizoid updates them automatically from the source API.
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CSV · JSON — 20 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Average annual concentration of nitrate in groundwater.