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

4.1 Milligrams per litre, with Ireland ahead.

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

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.

Ireland

12.69 Milligrams per litre

in 2023

Poland

8.59 Milligrams per litre

in 2023

Ireland rank

16th

Poland rank

18th

Ireland currently reports 12.69 Milligrams per litre against 8.59 Milligrams per litre in Poland, a difference of 4.1 Milligrams per litre.

That makes Ireland's figure about 1.5 times Poland's.

The two have swapped places 2 times across 17 shared years of data; in 2007 it was Ireland ahead.

Ireland ranks 16th and Poland ranks 18th of 24 countries.

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

Decade	Ireland	Poland	Difference	Ahead
2000s	12.74 Milligrams per litre	8.83 Milligrams per litre	3.91 Milligrams per litre	Ireland
2010s	11.83 Milligrams per litre	10.91 Milligrams per litre	0.919 Milligrams per litre	Ireland
2020s	12.48 Milligrams per litre	9.88 Milligrams per litre	2.6 Milligrams per litre	Ireland

Averages of every year both report within each decade.

Which has higher nitrate in groundwater, Ireland or Poland?: Ireland, at 12.69 Milligrams per litre against 8.59 Milligrams per litre in Poland as of 2023.
What is the difference in nitrate in groundwater between Ireland and Poland?: 4.1 Milligrams per litre, with Ireland ahead.
How many years of comparable data are there for Ireland and Poland?: 17 years are reported by both, from 2007 to 2023.
How do Ireland and Poland rank globally for nitrate in groundwater?: Ireland ranks 16th and Poland ranks 18th 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.