What is the difference in nitrate in groundwater between Poland and Switzerland?

5.83 Milligrams per litre, with Switzerland ahead.

How many years of comparable data are there for Poland and Switzerland?

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.

Poland

8.59 Milligrams per litre

in 2023

Switzerland

14.42 Milligrams per litre

in 2023

Poland rank

18th

Switzerland rank

15th

Switzerland currently reports 14.42 Milligrams per litre against 8.59 Milligrams per litre in Poland, a difference of 5.83 Milligrams per litre.

That makes Switzerland's figure about 1.7 times Poland's.

Across all 17 years both countries report, Switzerland has been ahead every year.

Poland ranks 18th and Switzerland ranks 15th of 24 countries.

Switzerland has averaged higher in every one of the 3 decades both report.

Decade	Poland	Switzerland	Difference	Ahead
2000s	8.83 Milligrams per litre	15.92 Milligrams per litre	7.1 Milligrams per litre	Switzerland
2010s	10.91 Milligrams per litre	14.93 Milligrams per litre	4.02 Milligrams per litre	Switzerland
2020s	9.88 Milligrams per litre	14.27 Milligrams per litre	4.39 Milligrams per litre	Switzerland

Averages of every year both report within each decade.

Which has higher nitrate in groundwater, Poland or Switzerland?: Switzerland, at 14.42 Milligrams per litre against 8.59 Milligrams per litre in Poland as of 2023.
What is the difference in nitrate in groundwater between Poland and Switzerland?: 5.83 Milligrams per litre, with Switzerland ahead.
How many years of comparable data are there for Poland and Switzerland?: 17 years are reported by both, from 2007 to 2023.
How do Poland and Switzerland rank globally for nitrate in groundwater?: Poland ranks 18th and Switzerland ranks 15th 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.