Japan vs Namibia: Ozone (O₃) concentration

Japan
61 ppb
in 2015
Namibia
61 ppb
in 2015
Japan rank
59th
Namibia rank
59th

Ozone (O₃) concentration over time

  • Japan
  • Namibia
0204060199020022015

How they compare

Japan currently reports 61 ppb against 61 ppb in Namibia, a difference of 0 ppb.

The two have swapped places 2 times across 7 shared years of data; in 1990 it was Namibia ahead.

Japan ranks 59th and Namibia ranks 59th of 187 countries.

Across the 3 decades both report, Japan averaged higher in 1 and Namibia in 2.

Head to head by decade

Decade Japan Namibia Difference Ahead
1990s 57 ppb 57.5 ppb 0.5 ppb Namibia
2000s 58 ppb 58.5 ppb 0.5 ppb Namibia
2010s 60.67 ppb 60.33 ppb 0.3333 ppb Japan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher ozone (o₃) concentration, Japan or Namibia?
Japan, at 61 ppb against 61 ppb in Namibia as of 2015.
What is the difference in ozone (o₃) concentration between Japan and Namibia?
0 ppb, with Japan ahead.
How many years of comparable data are there for Japan and Namibia?
7 years are reported by both, from 1990 to 2015.
How do Japan and Namibia rank globally for ozone (o₃) concentration?
Japan ranks 59th and Namibia ranks 59th 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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Japan vs Namibia: Ozone (O₃) concentration. Statizoid, drawing on Health Effects Institute (2017) – processed by Our World in Data. Retrieved 23 September 2026, from https://environment.statizoid.com/compare/ozone-o3-concentration-in-ppb/japan/namibia/

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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

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.