Air Pollution in New Hampshire: Real-time Air Quality Index and smog alert.

The latest data Last 7 days New Hampshire pollution March 2016 - May 2020
Current data from stations: Londonderry - Moose
Locations: Rockingham County »
Pollution and air quality forecast for New Hampshire. Today is Thursday, May 1, 2025. The following air pollution values have been recorded for New Hampshire:
  1. ozone (O3) - 0 (Good)
  2. carbon monoxide (CO) - 0 (Good)
  3. particulate matter (PM2.5) dust - 3 (Good)
  4. particulate matter (PM10) suspended dust - 6 (Good)
  5. sulfur dioxide (SO2) - 0 (Good)
Real-time Air Quality Index (AQI) for New Hampshire, Tuesday, April 16, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in New Hampshire today? Is the air polluted in New Hampshire?. Is there smog?

Today (Tuesday, April 16, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in New Hampshire.


How is the O3 level today in New Hampshire? (ozone (O3))
0 (Good)

How high is the CO level? (carbon monoxide (CO))
0 (Good)

What is the current level of PM2.5 in New Hampshire? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 3 (Good) For comparison, the highest level of PM2.5 in New Hampshire in the last 7 days was: 5 (Wednesday, April 10, 2024) and the lowest: 1 (Sunday, April 14, 2024). The highest PM2.5 values were recorded: 6.9 (January 2018). The lowest level of particulate matter PM2.5 pollution occurs in month: September (2.7).

What is the level of PM10 today in New Hampshire? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in New Hampshire is: 6 (Good) The highest PM10 values usually occur in month: 14 (January 2018). The lowest value of particulate matter PM10 pollution in New Hampshire is usually recorded in: November (5.7).

What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)



Current data Tuesday, April 16, 2024, 10:00 AM

O3 0 (Good)

CO 0 (Good)

PM2,5 3 (Good)

PM10 6 (Good)

SO2 0 (Good)

Data on air pollution from recent days in New Hampshire

index 2024-04-09 2024-04-10 2024-04-11 2024-04-12 2024-04-13 2024-04-14 2024-04-15 2024-04-16
pm10 7
Good		 11
Good		 7
Good		 7
Good		 8
Good		 2
Good		 8
Good		 4
Good
o3 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
co 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
so2 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good		 0
Good
pm25 3
Good		 5
Good		 4
Good		 4
Good		 3
Good		 1
Good		 5
Good		 3
Good
data source »
Air pollution in New Hampshire from March 2016 to May 2020
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2019-10 2019-09 2019-08 2019-07 2019-06 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2020-01 2019-12 2019-11 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-01 2017-12 2017-11 2017-01 2016-12 2016-11 2016-03
o3:ppm 0.04 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.04 (Good) 0.04 (Good) 0.04 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.02 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.03 (Good) 0.02 (Good) 0.04 (Good)
co:ppm 0.14 (Good) 0.15 (Good) 0.16 (Good) 0.19 (Good) 0.15 (Good) 0.15 (Good) 0.16 (Good) 0.16 (Good) 0.15 (Good) 0.18 (Good) 0.17 (Good) 0.11 (Good) 0.14 (Good) 0.16 (Good) 0.18 (Good) 0.18 (Good) 0.21 (Good) 0.17 (Good) 0.17 (Good) 0.17 (Good) 0.15 (Good) 0.12 (Good) 0.12 (Good) 0.14 (Good) 0.16 (Good) 0.17 (Good) 0.14 (Good) 0.14 (Good) 0.15 (Good) 0.15 (Good) 0.15 (Good) 0.17 (Good) 0.17 (Good) 0.18 (Good) 0.17 (Good) 0.16 (Good) 0.14 (Good) 0.15 (Good) 0.18 (Good) 0.18 (Good) 0.17 (Good) 0.2 (Good) 0.2 (Good) 0.18 (Good) 0.2 (Good) 0.21 (Good) 0.19 (Good) 0.17 (Good) 0.18 (Good) 0.16 (Good) 0.18 (Good)
pm25 4.1 (Good) 4.9 (Good) 4.6 (Good) 6.4 (Good) 3.8 (Good) 3.7 (Good) 4.1 (Good) 6.6 (Good) 4.6 (Good) 2.7 (Good) 6.1 (Good) 6.3 (Good) 4.1 (Good) 5.7 (Good) 4.6 (Good) 3.9 (Good) 6.8 (Good) 4.7 (Good) 5.9 (Good) 6.3 (Good) 6.4 (Good) 4.1 (Good) 2.8 (Good) 3.3 (Good) 4 (Good) 4.8 (Good) 5.1 (Good) 5 (Good) 5.6 (Good) 4.8 (Good) 3.7 (Good) 4.6 (Good) 4.8 (Good) 5.7 (Good) 5.3 (Good) 5.5 (Good) 3.9 (Good) 3.6 (Good) 5.3 (Good) 5.8 (Good) 5.6 (Good) 6 (Good) 3.8 (Good) 3.5 (Good) 6.9 (Good) 6.5 (Good) 6.3 (Good) 4.2 (Good) 5.3 (Good) 5.6 (Good) 4.6 (Good)
so2:ppm - (Good) 0 (Good) - (Good) 0 (Good) 0 (Good) 0 (Good) - (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) - (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good) 0 (Good)
pm10 - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 7.6 (Good) 7.5 (Good) 7.2 (Good) 12 (Good) 13 (Good) 10 (Good) 14 (Good) 8.8 (Good) 8.3 (Good) 13 (Good) 11 (Good) 12 (Good) 14 (Good) 14 (Good) 13 (Good) 11 (Good) 11 (Good) 11 (Good) 13 (Good) 9.1 (Good) 10 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 7.4 (Good) 6.2 (Good) 9.2 (Good) 9 (Good) 8 (Good) 8.8 (Good) 5.7 (Good) 6.6 (Good) 14 (Good) 12 (Good) 11 (Good) 11 (Good) 12 (Good) 9.6 (Good) - (Good)
data source »

Londonderry - Moose

Tuesday, April 16, 2024, 10:00 AM

O3 0.01 (Good)

ozone (O3)

CO 0.2 (Good)

carbon monoxide (CO)

PM2,5 3.2 (Good)

particulate matter (PM2.5) dust

PM10 6 (Good)

particulate matter (PM10) suspended dust

SO2 0 (Good)

sulfur dioxide (SO2)

Londonderry - Moose

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10 2024-04-09
pm10 4.5 8.1 2.3 7.5 7 6.9 11 6.6
o3 0.02 0.03 0.04 0.04 0.04 0.04 0.04 0.04
co 0.14 0.17 0.1 0.16 0.14 0.19 0.14 0.12
so2 0 0 0 0 0 0 0 0
pm25 2.6 4.9 1.4 3.4 3.9 4.2 4.7 3

Odiorne State Park

index 2020-05 2020-04 2020-03 2020-02 2019-10 2019-09 2019-08 2019-07 2019-06 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04
o3:ppm 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.02 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.03 0.02 0.03 0.03 0.04 0.03 0.04 0.04

Londonderry - Moose

2016-03   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03
co:ppm 0.14 0.15 0.16 0.19 0.18 0.17 0.16 0.15 0.15 0.16 0.16 0.15 0.14 0.15 0.18 0.18 0.17 0.2 0.2 0.18 0.18 0.17 0.11 0.14 0.16 0.18 0.18 0.21 0.2 0.21 0.19 0.17 0.17 0.17 0.15 0.12 0.12 0.14 0.16 0.17 0.17 0.18 0.16 0.14 0.14 0.15 0.15 0.15 0.17 0.17 0.18
so2:ppm - 0 - 0 0 0 0 0 0 - 0 0 0 0 0 - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
o3:ppm 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.02 0.03 0.02 0.02 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.04 0.04 0.04 0.03 0.03 0.02 0.02 0.03 0.03 0.03 0.03 0.04 0.04 0.04
pm25 4.1 4.9 4.6 6.4 5.7 5.3 5.5 3.8 3.7 4.1 6.6 4.6 3.9 3.6 5.3 5.8 5.6 6 3.8 3.5 2.7 6.1 6.3 4.1 5.7 4.6 3.9 6.8 6.9 6.5 6.3 4.7 5.9 6.3 6.4 4.1 2.8 3.3 4 4.8 4.2 5.3 5.6 5.1 5 5.6 4.8 3.7 4.6 4.8 4.6
pm10 - - - - - - - - - - 7.6 7.5 7.4 6.2 9.2 9 8 8.8 5.7 6.6 7.2 12 13 10 14 8.8 8.3 13 14 12 11 11 12 14 14 13 11 11 11 13 11 12 9.6 9.1 10 - - - - - -

* Pollution data source: https://openaq.org (AirNow) The data is licensed under CC-By 4.0