Christmas Island vs Saint Helena: Exposure to air pollution from human sources
Exposure to air pollution from human sources over time
- Christmas Island
- Saint Helena
How they compare
Saint Helena currently reports 2.46 micrograms per cubic meter against 2.08 micrograms per cubic meter in Christmas Island, a difference of 0.38 micrograms per cubic meter.
That makes Saint Helena's figure about 1.2 times Christmas Island's.
The two have swapped places 9 times across 27 shared years of data; in 1998 it was Christmas Island ahead.
Christmas Island ranks 219th and Saint Helena ranks 218th of 240 countries.
Christmas Island has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Christmas Island | Saint Helena | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 2.99 micrograms per cubic meter | 2.46 micrograms per cubic meter | 0.53 micrograms per cubic meter | Christmas Island |
| 2000s | 2.73 micrograms per cubic meter | 2.37 micrograms per cubic meter | 0.365 micrograms per cubic meter | Christmas Island |
| 2010s | 3.15 micrograms per cubic meter | 2.44 micrograms per cubic meter | 0.704 micrograms per cubic meter | Christmas Island |
| 2020s | 2.57 micrograms per cubic meter | 2.16 micrograms per cubic meter | 0.412 micrograms per cubic meter | Christmas Island |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to air pollution from human sources, Christmas Island or Saint Helena?
- Saint Helena, at 2.46 micrograms per cubic meter against 2.08 micrograms per cubic meter in Christmas Island as of 2024.
- What is the difference in exposure to air pollution from human sources between Christmas Island and Saint Helena?
- 0.38 micrograms per cubic meter, with Saint Helena ahead.
- How many years of comparable data are there for Christmas Island and Saint Helena?
- 27 years are reported by both, from 1998 to 2024.
- How do Christmas Island and Saint Helena rank globally for exposure to air pollution from human sources?
- Christmas Island ranks 219th and Saint Helena ranks 218th of 240 countries.
- Where does this data come from?
- Energy Policy Institute at the University of Chicago (EPIC) (2026) – with minor processing by Our World in Data, published as Exposure to air pollution from human sources. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Annual population-weighted average concentration of fine particulate matter (PM2.5) in the air, measured in micrograms per cubic meter (µg/m³). Fine particulate matter (PM2.5) are particles with a diameter of 2.5 micrometers or less, which can pose significant health risks. This data excludes natural sources of PM2.5, such as dust and sea salt, to focus on human-caused pollution.