Average nitrate concentration in freshwater in Slovenia

Slovenia: Average nitrate concentration in freshwater was 18.2 milligrams per litre in 2021. ▼ Falling

Latest (2021)
18.2 milligrams per litre
Change on year
up 15.7%
World rank
15th
of 34 countries
All-time high
23.77 milligrams per litre
in 1994
All-time low
15.73 milligrams per litre
in 2020
Years of data
30
1992–2021

Average nitrate concentration in freshwater in Slovenia, 1992–2021

05101520251992200620211992: 20.4 milligrams per litre1993: 20.4 milligrams per litre1994: 23.8 milligrams per litre1995: 23.8 milligrams per litre1996: 22.1 milligrams per litre1997: 21.1 milligrams per litre1998: 22.3 milligrams per litre1999: 21.1 milligrams per litre2000: 19.3 milligrams per litre2001: 21.4 milligrams per litre2002: 22.9 milligrams per litre2003: 20.6 milligrams per litre2004: 22.4 milligrams per litre2005: 23.6 milligrams per litre2006: 21.6 milligrams per litre2007: 17.9 milligrams per litre2008: 18.7 milligrams per litre2009: 19.1 milligrams per litre2010: 18 milligrams per litre2011: 18.1 milligrams per litre2012: 17 milligrams per litre2013: 19.6 milligrams per litre2014: 18.6 milligrams per litre2015: 18.3 milligrams per litre2016: 18.3 milligrams per litre2017: 18.3 milligrams per litre2018: 18.4 milligrams per litre2019: 16.1 milligrams per litre2020: 15.7 milligrams per litre2021: 18.2 milligrams per litre

Source: European Environment Agency (2023) – with minor processing by Our World in Data. Measured in milligrams per litre.

Analysis

Slovenia recorded 18.2 milligrams per litre for average nitrate concentration in freshwater in 2021.

Compared with earlier readings it is up 15.7% on the previous year and up 0.5% over ten years.

Over the whole period, average nitrate concentration in freshwater in Slovenia peaked at 23.77 milligrams per litre in 1994 and was at its lowest, 15.73 milligrams per litre, in 2020.

That places Slovenia 15th out of 34 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.

Averages by decade

DecadeAverage LowestHighest Years
1990s 21.88 milligrams per litre 20.44 milligrams per litre 23.77 milligrams per litre 8
2000s 20.76 milligrams per litre 17.9 milligrams per litre 23.6 milligrams per litre 10
2010s 18.07 milligrams per litre 16.13 milligrams per litre 19.61 milligrams per litre 10
2020s 16.97 milligrams per litre 15.73 milligrams per litre 18.2 milligrams per litre 2

Countries ranked near Slovenia

  1. 12 Italy 19.92 milligrams per litre compare
  2. 13 Netherlands 19.57 milligrams per litre compare
  3. 14 Czechia 18.66 milligrams per litre compare
  4. 16 Austria 17.17 milligrams per litre compare
  5. 17 Portugal 16.12 milligrams per litre compare
  6. 18 Switzerland 15.68 milligrams per litre compare

See the full ranking of 34 places →

More environment data for Slovenia

All data for Slovenia →

Frequently asked questions

What is average nitrate concentration in freshwater in Slovenia?
Average nitrate concentration in freshwater in Slovenia was 18.2 milligrams per litre 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 Slovenia?
The highest recorded value was 23.77 milligrams per litre in 1994.
What is the lowest average nitrate concentration in freshwater recorded in Slovenia?
The lowest recorded value was 15.73 milligrams per litre in 2020.
How does Slovenia rank for average nitrate concentration in freshwater?
Slovenia ranks 15th out of 34 countries with data for 2021.
Is average nitrate concentration in freshwater rising or falling in Slovenia?
Over the last ten years it is up 0.5%. The long-run trend across the full record is falling.
Where does this Slovenia 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.

Download this data

CSV · JSON — 30 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator
Average nitrate concentration in freshwater
Unit
milligrams per litre
Source
European Environment Agency (2023) – with minor processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
34 places, 655 data points, 1992–2021
Last refreshed

Average annual concentration of nitrate in groundwater.