What is the difference in exposure to outdoor air pollution in urban areas between Cayman Islands and Puerto Rico?

0.24 micrograms per cubic meter, with Puerto Rico ahead.

How many years of comparable data are there for Cayman Islands and Puerto Rico?

14 years are reported by both, from 2010 to 2023.

Where does this data come from?

World Health Organization – processed by Our World in Data, published as Exposure to outdoor air pollution in urban areas. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Cayman Islands vs Puerto Rico: Exposure to outdoor air pollution in urban areas

Cayman Islands

10.04 micrograms per cubic meter

in 2023

Puerto Rico

10.28 micrograms per cubic meter

in 2023

Cayman Islands rank

145th

Puerto Rico rank

144th

Exposure to outdoor air pollution in urban areas over time

Cayman Islands
Puerto Rico

How they compare

Puerto Rico currently reports 10.28 micrograms per cubic meter against 10.04 micrograms per cubic meter in Cayman Islands, a difference of 0.24 micrograms per cubic meter.

Across all 14 years both countries report, Puerto Rico has been ahead every year.

Cayman Islands ranks 145th and Puerto Rico ranks 144th of 226 countries.

Puerto Rico has averaged higher in every one of the 2 decades both report.

Head to head by decade

Decade	Cayman Islands	Puerto Rico	Difference	Ahead
2010s	12.76 micrograms per cubic meter	13.48 micrograms per cubic meter	0.729 micrograms per cubic meter	Puerto Rico
2020s	11.06 micrograms per cubic meter	11.5 micrograms per cubic meter	0.44 micrograms per cubic meter	Puerto Rico

Averages of every year both report within each decade.

Frequently asked questions

Which has higher exposure to outdoor air pollution in urban areas, Cayman Islands or Puerto Rico?: Puerto Rico, at 10.28 micrograms per cubic meter against 10.04 micrograms per cubic meter in Cayman Islands as of 2023.
What is the difference in exposure to outdoor air pollution in urban areas between Cayman Islands and Puerto Rico?: 0.24 micrograms per cubic meter, with Puerto Rico ahead.
How many years of comparable data are there for Cayman Islands and Puerto Rico?: 14 years are reported by both, from 2010 to 2023.
How do Cayman Islands and Puerto Rico rank globally for exposure to outdoor air pollution in urban areas?: Cayman Islands ranks 145th and Puerto Rico ranks 144th of 226 countries.
Where does this data come from?: World Health Organization – processed by Our World in Data, published as Exposure to outdoor air pollution in urban areas. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Cayman Islands vs Puerto Rico: Exposure to outdoor air pollution in urban areas. Statizoid, drawing on World Health Organization – processed by Our World in Data. Retrieved 14 September 2026, from https://environment.statizoid.com/compare/exposure-to-outdoor-air-pollution-in-urban-areas/cayman-islands/puerto-rico-us/

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<a href="https://environment.statizoid.com/compare/exposure-to-outdoor-air-pollution-in-urban-areas/cayman-islands/puerto-rico-us/">Cayman Islands vs Puerto Rico: Exposure to outdoor air pollution in urban areas</a> — Statizoid

About this data

Indicator: Exposure to outdoor air pollution in urban areas
Unit: micrograms per cubic meter
Source: World Health Organization – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 226 places, 3,156 data points, 2010–2023
Last refreshed: 28 August 2026

Annual mean levels of fine particulate matter (population-weighted), by location (micrograms per cubic meter).