Hong Kong vs Kazakhstan: Exposure to outdoor air pollution
Hong Kong
15.8 µg/m³
in 2024
Kazakhstan
16 µg/m³
in 2024
Hong Kong rank
110th
Kazakhstan rank
109th
Exposure to outdoor air pollution over time
- Hong Kong
- Kazakhstan
How they compare
Kazakhstan currently reports 16 µg/m³ against 15.8 µg/m³ in Hong Kong, a difference of 0.2 µg/m³.
The two have swapped places 1 time across 27 shared years of data; in 1998 it was Hong Kong ahead.
Hong Kong ranks 110th and Kazakhstan ranks 109th of 241 countries.
Across the 4 decades both report, Hong Kong averaged higher in 3 and Kazakhstan in 1.
Head to head by decade
| Decade | Hong Kong | Kazakhstan | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 16.65 µg/m³ | 14.85 µg/m³ | 1.8 µg/m³ | Hong Kong |
| 2000s | 24.3 µg/m³ | 16.45 µg/m³ | 7.85 µg/m³ | Hong Kong |
| 2010s | 23.48 µg/m³ | 16.65 µg/m³ | 6.83 µg/m³ | Hong Kong |
| 2020s | 15.62 µg/m³ | 15.82 µg/m³ | 0.2 µg/m³ | Kazakhstan |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher exposure to outdoor air pollution, Hong Kong or Kazakhstan?
- Kazakhstan, at 16 µg/m³ against 15.8 µg/m³ in Hong Kong as of 2024.
- What is the difference in exposure to outdoor air pollution between Hong Kong and Kazakhstan?
- 0.2 µg/m³, with Kazakhstan ahead.
- How many years of comparable data are there for Hong Kong and Kazakhstan?
- 27 years are reported by both, from 1998 to 2024.
- How do Hong Kong and Kazakhstan rank globally for exposure to outdoor air pollution?
- Hong Kong ranks 110th and Kazakhstan ranks 109th of 241 countries.
- Where does this data come from?
- SatPM, Atmospheric Composition Analysis Group, Washington University in St. Louis (2026) – with minor processing by Our World in Data, published as Exposure to outdoor air pollution. 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.