Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Portsmouth
Air quality index (AQI) and PM2.5 air pollution in Portsmouth
29 people follow this city
Portsmouth Air Quality Map
Real-time Portsmouth air pollution map
AIR QUALITY DATA CONTRIBUTORS
Ohio Environmental Protection Agency (Ohio EPA)
See all
Pollen
What is the pollen count in Portsmouth today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Portsmouth?
| Weather | Clear sky |
| Temperature | 42.8°F |
| Humidity | 74% |
| Wind | 5 mp/h |
| Pressure | 30.2 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 146 |
| 2 | Coachella, California | 114 |
| 3 | Indio, California | 78 |
| 4 | Conway, South Carolina | 72 |
| 5 | Pahrump, Nevada | 71 |
| 6 | Cobb, California | 69 |
| 7 | Tallahassee, Florida | 69 |
| 8 | Kansas City, Kansas | 68 |
| 9 | Rock Hill, South Carolina | 64 |
| 10 | Marietta, Georgia | 60 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Portsmouth aqi ranking
Real-time Portsmouth air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Portsmouth Water Treatment Plant | 22 |
(local time)
SEE WORLD AQI RANKING
US AQI
22
live AQI index
Good
Overview
What is the current air quality in Portsmouth?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 22 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.4µg/m³ | |
| PM10 | 7.6µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Portsmouth is currently 1.1 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Portsmouth?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Portsmouth air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 39 AQI US |  | 69.8° 41° |  13.4 mp/h |
| Tuesday, Apr 23 | Good 30 AQI US | | 66.2° 46.4° | 11.2 mp/h |
| Wednesday, Apr 24 | Good 20 AQI US |  | 60.8° 32° | 6.7 mp/h |
| Today | Good 22 AQI US | | 60.8° 32° | 6.7 mp/h |
| Friday, Apr 26 | Good 35 AQI US | 50% | 75.2° 37.4° | 6.7 mp/h |
| Saturday, Apr 27 | Moderate 57 AQI US  | 100% | 73.4° 55.4° | 11.2 mp/h |
| Sunday, Apr 28 | Moderate 57 AQI US |  | 78.8° 59° | 8.9 mp/h |
| Monday, Apr 29 | Moderate 56 AQI US | 70% | 80.6° 59° | 11.2 mp/h |
| Tuesday, Apr 30 | Moderate 64 AQI US | 100% | 77° 60.8° | 8.9 mp/h |
| Wednesday, May 1 | Good 14 AQI US | 90% | 77° 57.2° | 6.7 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Portsmouth air quality data attribution
1Contributor
Government Contributor
2 Data sources
Where is the cleanest air quality in Portsmouth?
AQI US, Metric