Portsmouth Air Quality Index (AQI) | Air Pollution
Real-time PM2.5, PM10 air pollution level in Portsmouth
Last Updated: 2026-08-17 17:31 (Local Time)
23 °C
Light Drizzle
Presently, Portsmouth ranks for having the good air quality among cities worldwide.
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Portsmouth
AQI (US) Trends - Annual Air Quality Changes
Portsmouth, New Hampshire, United States
Portsmouth's Locations
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Air Quality Index
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Portsmouth
Health Advice For People Living In
Portsmouth
0Cigarettes per day
Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.
Source:
Berkeley Earth
Solutions for Current AQI (US)
Prevent Health Problems: Understand Your Risks
Portsmouth
Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)
Most Polluted Cities 2026
United States
Analyze the real-time most air polluted cities in the country.
Standard Value
1.
Omak, Washington
Moderate
2xabove Standard
2.
Moses Lake, Washington
Moderate
2xabove Standard
3.
Chelan, Washington
Moderate
2xabove Standard
4.
Ellensburg, Washington
Moderate
2xabove Standard
5.
Wenatchee, Washington
Moderate
2xabove Standard
6.
Madras, Oregon
Moderate
1xabove Standard
7.
Merced, California
Moderate
1xbelow Standard
8.
Belle Glade, Florida
Moderate
1xabove Standard
9.
Stuart, Florida
Moderate
1xabove Standard
10.
Davie, Florida
Moderate
1xabove Standard
Last Updated: 17 Aug 2026, 09:36 PM
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at Portsmouth
Frequently Asked Questions About Air Quality
1. What is the current AQI (US) level in Portsmouth?
1. What is the current AQI (US) level in Portsmouth?
The current real-time AQI (US) level in Portsmouth is 14 (Good) due to recent rainfall by 0.24mm/hr. This was last updated 2026-08-17 17:31 (Local Time).
2. When was the best AQI (US) level in Portsmouth in the last 24 hours?
2. When was the best AQI (US) level in Portsmouth in the last 24 hours?
The best AQI (US) level was 12 (Good) at 6:31 AM (Local Time) during the last 24 hours.
3. When was the worst AQI (US) level in Portsmouth in the last 24 hours?
3. When was the worst AQI (US) level in Portsmouth in the last 24 hours?
The worst AQI (US) level was 50 (Good) at 5:31 PM, Aug 16, 2026 (Local Time) during the last 24 hours.
4. What is the current trend of AQI (US) levels in Portsmouth during last 24 hours?
4. What is the current trend of AQI (US) levels in Portsmouth during last 24 hours?
The AQI (US) levels in Portsmouth have been fluctuating throughout the last 24 hours. The levels have increased by highest 50 at 5:31 PM, Aug 16, 2026 (Local Time), lowest 12 at 6:31 AM (Local Time).
5. What actions are recommended as per the current AQI (US) level in Portsmouth?
5. What actions are recommended as per the current AQI (US) level in Portsmouth?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
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