SmogRank / World / North America / United States / Rhode Island
Most polluted cities in Rhode Island, United States
3 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Pawtucket at 5.6 µg/m³, #1,955 in the world.
About 0 people in this city breathed unhealthy air on an average day over the last 30 days.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
- 1Providence 0
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Estimated: cities without a monitor
Rhode Island cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Warwick | ≈ 4 µg/m³ |
| Cranston | ≈ 4 µg/m³ |
| East Providence | ≈ 6 µg/m³ |
| Woonsocket | ≈ 5 µg/m³ |
| Coventry | ≈ 4 µg/m³ |
| Cumberland | ≈ 5 µg/m³ |
| North Providence | ≈ 5 µg/m³ |
| South Kingstown | ≈ 4 µg/m³ |
| West Warwick | ≈ 4 µg/m³ |
| Johnston | ≈ 5 µg/m³ |
| North Kingstown | ≈ 4 µg/m³ |
| Newport | ≈ 5 µg/m³ |
| Bristol | ≈ 5 µg/m³ |
| Smithfield | ≈ 5 µg/m³ |
| Lincoln | ≈ 5 µg/m³ |
| Central Falls | ≈ 6 µg/m³ |
| Westerly | ≈ 5 µg/m³ |
| Portsmouth | ≈ 5 µg/m³ |
| Middletown | ≈ 5 µg/m³ |
| Barrington | ≈ 5 µg/m³ |
| Narragansett | ≈ 4 µg/m³ |
Bad-air episodes in Rhode Island
- Northern United States and Canada, July 202614 to 21 July 2026, 8 days327 cities548 µg/m³peak, Superior
- North-eastern United States and Canada, 14 to 19 February 20266 days108 cities54 µg/m³peak, Lancaster
- North-eastern United States and Canada, September and October 202330 September to 1 October 2023, 2 days34 cities40 µg/m³peak, Worcester
- Eastern United States and Canada, June and July 202325 June to 2 July 2023, 8 days343 cities453 µg/m³peak, Saguenay
- Eastern United States and Canada, May and June 202331 May to 12 June 2023, 13 days317 cities253 µg/m³peak, Bethlehem
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
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SmogRank, most polluted cities in Rhode Island, United States, PM2.5, last 30 days to 6 Oct 2026, 22:00 UTC, smogrank.com/us/region/rhode-island?w=30d.
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Updated 2026-10-06 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.