Guayama, Puerto Rico Air Quality
Guayama County, Puerto Rico (PR)
↓ Improvingover 9 years
10-Year AQI Trend
The solid line shows the median AQI each year. The dashed line shows the 90th percentile (worst 10% of days). This area has seen measurable air quality improvement over the decade.
Air Quality Day Breakdown
Number of days per year in each EPA AQI category. Green = Good (AQI 0-50), Yellow = Moderate (51-100), Orange = Unhealthy for Sensitive Groups (101-150), Red = Unhealthy or worse (151+).
Year-by-Year Data
| Year | Median AQI | 90th Pct | Max AQI | Good Days | Moderate | Unhealthy+ | Pollutant |
|---|---|---|---|---|---|---|---|
| 2023 | 15 | 37 | 55 | 57 | 2 | 0 | PM10 |
| 2022 | 16 | 31 | 67 | 65 | 2 | 0 | PM10 |
| 2021 | 28 | 65 | 77 | 39 | 15 | 0 | PM2.5 |
| 2020 | 31 | 63 | 82 | 26 | 8 | 0 | PM2.5 |
| 2019 | 29 | 29 | 29 | 2 | 0 | 0 | PM10 |
| 2017 | 37 | 63 | 85 | 36 | 8 | 0 | PM2.5 |
| 2016 | 28 | 58 | 73 | 85 | 17 | 0 | PM2.5 |
| 2015 | 25 | 55 | 68 | 91 | 19 | 0 | PM2.5 |
| 2014 | 19 | 42 | 59 | 98 | 8 | 0 | PM10 |
What This Means for Guayama County Residents
Guayama, Puerto Rico has received an Air Quality Grade of B (78/100) based on a decade of EPA monitoring data. The current median AQI of 15 falls in the "Good" range.
Encouragingly, air quality here has been improving, with the median AQI dropping by 4 points over the monitoring period. This trend suggests continued investment in emission controls and cleaner energy.
The primary pollutant affecting this area is Fine Particulate Matter (PM2.5). Over the past 5 years, this area has averaged 0 unhealthy air quality days per year — days when sensitive groups (children, elderly, those with respiratory conditions) should limit outdoor activity.