Portugal vs Slovak Republic: Average nitrate concentration in freshwater

Portugal
16.12
in 2021
Slovak Republic
15.66
in 2021
Portugal rank
17th
Slovak Republic rank
19th

Average nitrate concentration in freshwater over time

  • Portugal
  • Slovak Republic
102030405060199220062021

How they compare

Portugal currently reports 16.12 against 15.66 in Slovak Republic, a difference of 0.46.

The two have swapped places 2 times across 22 shared years of data; in 2000 it was Portugal ahead.

Portugal ranks 17th and Slovak Republic ranks 19th of 34 countries.

Across the 3 decades both report, Portugal averaged higher in 1 and Slovak Republic in 2.

Head to head by decade

Decade Portugal Slovak Republic Difference Ahead
2000s 21.26 16.1 5.16 Portugal
2010s 15.44 17.72 2.28 Slovak Republic
2020s 15.76 15.77 0.0075 Slovak Republic

Averages of every year both report within each decade.

Frequently asked questions

Which has higher average nitrate concentration in freshwater, Portugal or Slovak Republic?
Portugal, at 16.12 against 15.66 in Slovak Republic as of 2021.
What is the difference in average nitrate concentration in freshwater between Portugal and Slovak Republic?
0.46, with Portugal ahead.
How many years of comparable data are there for Portugal and Slovak Republic?
22 years are reported by both, from 2000 to 2021.
How do Portugal and Slovak Republic rank globally for average nitrate concentration in freshwater?
Portugal ranks 17th and Slovak Republic ranks 19th of 34 countries.
Where does this data come from?
Our World in Data, published as Average nitrate concentration in freshwater. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Slovak Republic: Average nitrate concentration in freshwater. Statizoid, drawing on Our World in Data. Retrieved 17 August 2026, from https://environment.statizoid.com/compare/average-nitrate-concentration-in-freshwater/portugal/slovak-republic/

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About this data

Indicator
Average nitrate concentration in freshwater
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
34 places, 655 data points, 1992–2021
Last refreshed