Which has higher nitrate in groundwater, Portugal or Slovakia?

Slovakia, at 16.09 against 15.7 in Portugal as of 2023.

How many years of comparable data are there for Portugal and Slovakia?

17 years are reported by both, from 2007 to 2023.

Eurostat, published as Nitrate in groundwater. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Portugal

15.7

in 2023

Slovakia

16.09

in 2023

Portugal rank

12th

Slovakia rank

11th

Slovakia currently reports 16.09 against 15.7 in Portugal, a difference of 0.39.

The two have swapped places 1 time across 17 shared years of data; in 2007 it was Portugal ahead.

Portugal ranks 12th and Slovakia ranks 11th of 24 countries.

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

Decade	Portugal	Slovakia	Difference	Ahead
2000s	17.23	16.33	0.9	Portugal
2010s	15.4	15.76	0.365	Slovakia
2020s	15.39	15.96	0.5675	Slovakia

Averages of every year both report within each decade.

Which has higher nitrate in groundwater, Portugal or Slovakia?: Slovakia, at 16.09 against 15.7 in Portugal as of 2023.
What is the difference in nitrate in groundwater between Portugal and Slovakia?: 0.39, with Slovakia ahead.
How many years of comparable data are there for Portugal and Slovakia?: 17 years are reported by both, from 2007 to 2023.
How do Portugal and Slovakia rank globally for nitrate in groundwater?: Portugal ranks 12th and Slovakia ranks 11th of 24 countries.
Where does this data come from?: Eurostat, published as Nitrate in groundwater. Statizoid refreshes it automatically from the source and publishes the full history for both places.