Which has higher ozone (o₃) concentration, Democratic Republic of Congo or Congo?

Democratic Republic of Congo, at 63 ppb against 62 ppb in Congo as of 2015.

What is the difference in ozone (o₃) concentration between Democratic Republic of Congo and Congo?

1 ppb, with Democratic Republic of Congo ahead.

How many years of comparable data are there for Democratic Republic of Congo and Congo?

7 years are reported by both, from 1990 to 2015.

Where does this data come from?

Health Effects Institute (2017) – processed by Our World in Data, published as Ozone (O₃) concentration. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Democratic Republic of Congo vs Congo: Ozone (O₃) concentration

Democratic Republic of Congo

63 ppb

in 2015

Congo

62 ppb

in 2015

Democratic Republic of Congo rank

52nd

Congo rank

55th

Ozone (O₃) concentration over time

Democratic Republic of Congo
Congo

How they compare

Democratic Republic of Congo currently reports 63 ppb against 62 ppb in Congo, a difference of 1 ppb.

Across all 7 years both countries report, Democratic Republic of Congo has been ahead every year.

Democratic Republic of Congo ranks 52nd and Congo ranks 55th of 187 countries.

Democratic Republic of Congo has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Democratic Republic of Congo	Congo	Difference	Ahead
1990s	63 ppb	61 ppb	2 ppb	Democratic Republic of Congo
2000s	63 ppb	61 ppb	2 ppb	Democratic Republic of Congo
2010s	63 ppb	62 ppb	1 ppb	Democratic Republic of Congo

Averages of every year both report within each decade.

Frequently asked questions

Which has higher ozone (o₃) concentration, Democratic Republic of Congo or Congo?: Democratic Republic of Congo, at 63 ppb against 62 ppb in Congo as of 2015.
What is the difference in ozone (o₃) concentration between Democratic Republic of Congo and Congo?: 1 ppb, with Democratic Republic of Congo ahead.
How many years of comparable data are there for Democratic Republic of Congo and Congo?: 7 years are reported by both, from 1990 to 2015.
How do Democratic Republic of Congo and Congo rank globally for ozone (o₃) concentration?: Democratic Republic of Congo ranks 52nd and Congo ranks 55th of 187 countries.
Where does this data come from?: Health Effects Institute (2017) – processed by Our World in Data, published as Ozone (O₃) concentration. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Democratic Republic of Congo vs Congo: Ozone (O₃) concentration. Statizoid, drawing on Health Effects Institute (2017) – processed by Our World in Data. Retrieved 24 September 2026, from https://environment.statizoid.com/compare/ozone-o3-concentration-in-ppb/congo-dem-rep/congo-rep/

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About this data

Indicator: Ozone (O₃) concentration
Unit: ppb
Source: Health Effects Institute (2017) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 187 places, 1,309 data points, 1990–2015
Last refreshed: 18 September 2026

Population-weighted average ozone (O₃) concentrations in parts per billion (ppb). Local concentrations of ozone are recorded and estimated at a 11x11km resolution. These values are subsequently weighted by population-density for calculation of nation-level average concentrations.