Air Quality in Puerto Rico
10-year air quality trends for 11 monitored areas in Puerto Rico.
See full Puerto Rico air quality rankings →All Monitored Areas in Puerto Rico
Caguas, Puerto Rico
Caguas County · AQI 10 (5yr avg) · Improving · NO2
San Juan, Puerto Rico
San Juan County · AQI 10 (5yr avg) · Improving · CO
Juncos, Puerto Rico
Juncos County · AQI 9 (5yr avg) · Improving · Ozone
Adjuntas, Puerto Rico
Adjuntas County · AQI 19 (5yr avg) · Improving · PM2.5
Bayamon, Puerto Rico
Bayamon County · AQI 18 (5yr avg) · Improving · CO
Guayama, Puerto Rico
Guayama County · AQI 24 (5yr avg) · Improving · PM2.5
Ponce, Puerto Rico
Ponce County · AQI 29 (5yr avg) · Stable · PM10
Fajardo, Puerto Rico
Fajardo County · AQI 28 (5yr avg) · Worsening · PM2.5
Guaynabo, Puerto Rico
Guaynabo County · AQI 29 (5yr avg) · Worsening · NO2
Mayagnez, Puerto Rico
Mayagnez County · AQI 31 (5yr avg) · Worsening · PM2.5
Catano, Puerto Rico
Catano County · AQI 42 (5yr avg) · Worsening · PM2.5
Frequently Asked Questions
Puerto Rico has 11 monitored areas with an average 5-year AQI of 23 and an average Air Quality Grade of B. 6 cities are improving, 5 are worsening, and 0 are stable.
Caguas, Puerto Rico has the best Air Quality Grade (A) in Puerto Rico with a 5-year average AQI of 10.
Of 11 monitored areas in Puerto Rico, 6 are showing improving trends, 5 are worsening, and 0 remain stable over the past decade.