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Air quality in Portsmouth
Air quality index (AQI) and PM2.5 air pollution in Portsmouth
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Portsmouth Air Quality Map
Real-time Portsmouth air pollution map
AIR QUALITY DATA CONTRIBUTORS
New Hampshire Department of Environmental Services (NHDES)
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Pollen
What is the pollen count in Portsmouth today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Portsmouth?
| Weather | Few clouds |
| Temperature | 73.4°F |
| Humidity | 74% |
| Wind | 4.6 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Boerne, Texas | 107 |
| 2 | Georgetown, Texas | 106 |
| 3 | Leander, Texas | 99 |
| 4 | Lewisville, Texas | 97 |
| 5 | Austin, Texas | 96 |
| 6 | Dallas, Texas | 95 |
| 7 | Round Rock, Texas | 94 |
| 8 | Midlothian, Texas | 93 |
| 9 | Fort Worth, Texas | 92 |
| 10 | New Braunfels, Texas | 92 |
(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 Station | 46 |
(local time)
SEE WORLD AQI RANKING
US AQI
46
live AQI index
Good
Overview
What is the current air quality in Portsmouth?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 46 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 8.4µg/m³ | |
| PM10 | 19µg/m³ | |
!
PM2.5
x1.7
PM2.5 concentration in Portsmouth is currently 1.7 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 |
|---|---|---|---|---|
| Sunday, May 19 | Good 21 AQI US | | 60.8° 48.2° |  8.9 mp/h |
| Monday, May 20 | Good 28 AQI US |  | 75.2° 50° | 8.9 mp/h |
| Tuesday, May 21 | Good 50 AQI US | | 80.6° 59° | 11.2 mp/h |
| Today | Good 46 AQI US | | 80.6° 59° | 11.2 mp/h |
| Thursday, May 23 | Moderate 59 AQI US  | 40% | 80.6° 60.8° | 8.9 mp/h |
| Friday, May 24 | Good 49 AQI US |  | 77° 59° | 8.9 mp/h |
| Saturday, May 25 | Good 35 AQI US | | 62.6° 51.8° | 13.4 mp/h |
| Sunday, May 26 | Moderate 57 AQI US | 90% | 71.6° 59° | 11.2 mp/h |
| Monday, May 27 | Moderate 63 AQI US | 100% | 66.2° 59° | 11.2 mp/h |
| Tuesday, May 28 | Moderate 60 AQI US | 100% | 62.6° 57.2° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Portsmouth air quality data attribution
1Contributor
Government Contributor
2 Data sources
Where is the cleanest air quality in Portsmouth?
AQI US, Metric