What is the current concentration of PM10 in Windham, New Hampshire?

The current PM10 concentration at Windham, New Hampshire is 5.921 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Windham, New Hampshire?

The current sulfur dioxide (SO2) concentration at Windham, New Hampshire is 0.451 ppb.

What is the current concentration of ozone (O3) in Windham, New Hampshire?

The current ozone (O3) concentration at Windham, New Hampshire is 29.936 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Windham, New Hampshire?

The current nitrogen dioxide (NO2) concentration at Windham, New Hampshire is 2.029 ppb.

Windham, New Hampshire live air quality index now

Q: What is the current concentration of PM2.5 in Windham, New Hampshire?

The current PM2.5 concentration at Windham, New Hampshire is 2.12 μg/m3.

Stay updated with real-time air quality in Windham, New Hampshire featuring accurate data on AQI, PM_2.5, PM₁₀, O₃, NO₂, SO₂, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.

Live AQI (Air Quality Index)

Good

Windham, New Hampshire

Last updated: ... (Local time)

Major air pollutants in Windham, New Hampshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

2.12 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

5.92 μg/m³

155

255

425

605+

Ozone (O₃)

29.94 ppb

201

201+

Sulfur Dioxide (SO₂)

0.45 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.03 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Windham, New Hampshire

Scroll To Air Quality Map

Track live Windham, New Hampshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-02-10T02:00:00.000Z	34 \| good	3.229 \| good	12.488 \| good	36.903 \| good	0.458 \| good	2.097 \| good	0.152 \| good
2026-02-10T03:00:00.000Z	33 \| good	3.297 \| good	11.475 \| good	36.442 \| good	0.549 \| good	3.612 \| good	0.152 \| good
2026-02-10T04:00:00.000Z	33 \| good	3.508 \| good	12.897 \| good	36.415 \| good	0.507 \| good	5.02 \| good	0.142 \| good
2026-02-10T05:00:00.000Z	33 \| good	3.653 \| good	12.869 \| good	36.336 \| good	0.561 \| good	5.68 \| good	0.152 \| good
2026-02-10T06:00:00.000Z	32 \| good	3.881 \| good	14.199 \| good	35.333 \| good	0.518 \| good	9.779 \| good	0.142 \| good
2026-02-10T07:00:00.000Z	32 \| good	3.724 \| good	13.049 \| good	34.79 \| good	0.518 \| good	10.058 \| good	0.142 \| good
2026-02-10T08:00:00.000Z	30 \| good	3.772 \| good	14.421 \| good	32.499 \| good	0.535 \| good	12.341 \| good	0.142 \| good
2026-02-10T09:00:00.000Z	28 \| good	4.58 \| good	16.275 \| good	29.876 \| good	0.55 \| good	13.623 \| good	0.168 \| good
2026-02-10T10:00:00.000Z	33 \| good	6.199 \| good	23.298 \| good	27.999 \| good	0.542 \| good	15.088 \| good	0.171 \| good
2026-02-10T11:00:00.000Z	38 \| good	7.387 \| good	28.895 \| good	25.541 \| good	0.554 \| good	15.649 \| good	0.258 \| good
2026-02-10T12:00:00.000Z	38 \| good	6.632 \| good	26.358 \| good	20.856 \| good	0.605 \| good	17.974 \| good	0.293 \| good
2026-02-10T13:00:00.000Z	38 \| good	6.682 \| good	24.233 \| good	21.071 \| good	0.604 \| good	18.104 \| good	0.293 \| good
2026-02-10T14:00:00.000Z	52 \| moderate	9.894 \| good	56.997 \| fine	19.244 \| good	0.725 \| good	17.441 \| good	0.296 \| good
2026-02-10T15:00:00.000Z	44 \| good	8.44 \| good	43.818 \| good	23.775 \| good	0.627 \| good	9.483 \| good	0.248 \| good
2026-02-10T16:00:00.000Z	33 \| good	6.446 \| good	30.035 \| good	28.66 \| good	0.571 \| good	6.112 \| good	0.347 \| good
2026-02-10T17:00:00.000Z	33 \| good	5.647 \| good	27.266 \| good	29.761 \| good	0.514 \| good	5.397 \| good	0.301 \| good
2026-02-10T18:00:00.000Z	31 \| good	5.212 \| good	23.024 \| good	32.793 \| good	0.51 \| good	6.276 \| good	0.262 \| good
2026-02-10T19:00:00.000Z	33 \| good	5.26 \| good	21.586 \| good	35.886 \| good	0.479 \| good	8.097 \| good	0.264 \| good
2026-02-10T20:00:00.000Z	36 \| good	5.117 \| good	20.798 \| good	38.542 \| good	0.499 \| good	10.394 \| good	0.356 \| good
2026-02-10T21:00:00.000Z	35 \| good	5.166 \| good	23.782 \| good	37.75 \| good	0.487 \| good	10.233 \| good	0.333 \| good
2026-02-10T22:00:00.000Z	32 \| good	4.9 \| good	20.399 \| good	35.133 \| good	0.577 \| good	13.882 \| good	0.403 \| good
2026-02-10T23:00:00.000Z	33 \| good	6.333 \| good	30.305 \| good	34.41 \| good	0.557 \| good	15.616 \| good	0.804 \| good
2026-02-11T00:00:00.000Z	31 \| good	5.441 \| good	22.476 \| good	32.513 \| good	0.541 \| good	11.418 \| good	0.735 \| good
2026-02-11T01:00:00.000Z	33 \| good	5.85 \| good	22.251 \| good	34.477 \| good	0.504 \| good	9.707 \| good	0.781 \| good
2026-02-11T02:00:00.000Z	33 \| good	6.281 \| good	21.512 \| good	32.596 \| good	0.53 \| good	11.379 \| good	0.739 \| good
2026-02-11T03:00:00.000Z	38 \| good	6.944 \| good	22.125 \| good	32.534 \| good	0.596 \| good	9.524 \| good	0.716 \| good
2026-02-11T04:00:00.000Z	38 \| good	7.233 \| good	22.818 \| good	32.294 \| good	0.653 \| good	8.268 \| good	0.739 \| good
2026-02-11T05:00:00.000Z	38 \| good	7.153 \| good	20.505 \| good	33.895 \| good	2.526 \| good	8.109 \| good	0.628 \| good
2026-02-11T06:00:00.000Z	44 \| good	7.945 \| good	21.126 \| good	34.18 \| good	0.633 \| good	7.893 \| good	0.739 \| good
2026-02-11T07:00:00.000Z	44 \| good	8.01 \| good	25.516 \| good	32.644 \| good	0.643 \| good	8.036 \| good	0.739 \| good
2026-02-11T08:00:00.000Z	49 \| good	8.955 \| good	24.139 \| good	32.354 \| good	0.635 \| good	8.199 \| good	0.739 \| good
2026-02-11T09:00:00.000Z	52 \| moderate	10.052 \| good	31.709 \| good	30.917 \| good	0.577 \| good	12.53 \| good	0.757 \| good
2026-02-11T10:00:00.000Z	54 \| moderate	10.875 \| good	34.263 \| good	29.709 \| good	0.52 \| good	13.898 \| good	0.762 \| good
2026-02-11T11:00:00.000Z	56 \| moderate	12.025 \| good	37.463 \| good	24.171 \| good	0.457 \| good	14.207 \| good	0.762 \| good
2026-02-11T12:00:00.000Z	60 \| moderate	13.83 \| fine	44.427 \| good	22.126 \| good	0.457 \| good	15.688 \| good	0.803 \| good
2026-02-11T13:00:00.000Z	60 \| moderate	13.813 \| fine	41.711 \| good	21.282 \| good	0.458 \| good	15.529 \| good	0.803 \| good
2026-02-11T14:00:00.000Z	64 \| moderate	15.575 \| fine	42.097 \| good	22.875 \| good	0.542 \| good	11.029 \| good	0.827 \| good
2026-02-11T15:00:00.000Z	64 \| moderate	16.177 \| fine	40.916 \| good	25.143 \| good	0.582 \| good	5.605 \| good	0.827 \| good
2026-02-11T16:00:00.000Z	62 \| moderate	15.489 \| fine	40.681 \| good	26.903 \| good	0.577 \| good	3.935 \| good	0.821 \| good
2026-02-11T17:00:00.000Z	60 \| moderate	14.153 \| fine	39.278 \| good	29.771 \| good	0.55 \| good	3.369 \| good	0.795 \| good
2026-02-11T18:00:00.000Z	56 \| moderate	12.457 \| fine	35.178 \| good	31.1 \| good	0.483 \| good	2.3 \| good	0.247 \| good
2026-02-11T19:00:00.000Z	52 \| moderate	10.078 \| good	24.544 \| good	33.14 \| good	0.482 \| good	2.118 \| good	0.235 \| good
2026-02-11T20:00:00.000Z	44 \| good	8.011 \| good	20.593 \| good	33.017 \| good	0.482 \| good	2.189 \| good	0.247 \| good
2026-02-11T21:00:00.000Z	33 \| good	6.282 \| good	15.744 \| good	31.805 \| good	0.459 \| good	2.318 \| good	0.235 \| good
2026-02-11T22:00:00.000Z	29 \| good	4.781 \| good	12.253 \| good	31.16 \| good	0.451 \| good	2.07 \| good	0.216 \| good
2026-02-11T23:00:00.000Z	29 \| good	3.471 \| good	9.925 \| good	30.884 \| good	0.449 \| good	1.745 \| good	0.216 \| good
2026-02-12T00:00:00.000Z	28 \| good	2.31 \| good	6.56 \| good	29.822 \| good	0.451 \| good	1.91 \| good	0.21 \| good
2026-02-12T01:00:00.000Z	28 \| good	2.12 \| good	5.921 \| good	29.936 \| good	0.451 \| good	2.029 \| good	0.21 \| good
2026-02-12T01:00:00.000Z	28 \| good	2.12 \| good	5.921 \| good	29.936 \| good	0.451 \| good	2.029 \| good	0.21 \| good
2026-02-12T02:00:00.000Z	56 \| moderate	11.701 \| good	52.378 \| good	28.491 \| good	0.527 \| good	5.506 \| good	0.202 \| good
2026-02-12T03:00:00.000Z	82 \| moderate	25.622 \| fine	111.901 \| fine	39.389 \| good	0.601 \| good	4.88 \| good	0.202 \| good
2026-02-12T04:00:00.000Z	90 \| moderate	29.661 \| fine	128.868 \| fine	42.31 \| good	0.579 \| good	3.933 \| good	0.194 \| good
2026-02-12T05:00:00.000Z	88 \| moderate	28.579 \| fine	123.24 \| fine	41.337 \| good	0.556 \| good	2.986 \| good	0.185 \| good
2026-02-12T06:00:00.000Z	81 \| moderate	25.026 \| fine	109.288 \| fine	38.411 \| good	0.534 \| good	2.039 \| good	0.176 \| good
2026-02-12T07:00:00.000Z	64 \| moderate	15.559 \| fine	69.144 \| fine	38.839 \| good	0.51 \| good	1.894 \| good	0.173 \| good
2026-02-12T08:00:00.000Z	62 \| moderate	15.496 \| fine	69.009 \| fine	37.688 \| good	0.485 \| good	1.749 \| good	0.169 \| good
2026-02-12T09:00:00.000Z	64 \| moderate	16.395 \| fine	73.094 \| fine	33.941 \| good	0.461 \| good	1.605 \| good	0.165 \| good
2026-02-12T10:00:00.000Z	73 \| moderate	21.048 \| fine	92.852 \| fine	28.692 \| good	0.473 \| good	1.997 \| good	0.169 \| good
2026-02-12T11:00:00.000Z	86 \| moderate	27.697 \| fine	119.746 \| fine	27.58 \| good	0.484 \| good	2.39 \| good	0.174 \| good
2026-02-12T12:00:00.000Z	79 \| moderate	23.724 \| fine	103.728 \| fine	29.12 \| good	0.496 \| good	2.782 \| good	0.178 \| good
2026-02-12T13:00:00.000Z	73 \| moderate	21.106 \| fine	93.475 \| fine	33.554 \| good	0.494 \| good	2.451 \| good	0.177 \| good
2026-02-12T14:00:00.000Z	67 \| moderate	17.642 \| fine	78.048 \| fine	36.364 \| good	0.492 \| good	2.12 \| good	0.176 \| good
2026-02-12T15:00:00.000Z	44 \| good	8.148 \| good	36.164 \| good	37.334 \| good	0.491 \| good	1.789 \| good	0.176 \| good
2026-02-12T16:00:00.000Z	38 \| good	7.381 \| good	32.349 \| good	38.499 \| good	0.439 \| good	1.504 \| good	0.169 \| good
2026-02-12T17:00:00.000Z	44 \| good	8.115 \| good	35.483 \| good	40.09 \| good	0.387 \| good	1.218 \| good	0.162 \| good
2026-02-12T18:00:00.000Z	49 \| good	8.558 \| good	37.686 \| good	39.999 \| good	0.335 \| good	0.933 \| good	0.156 \| good
2026-02-12T19:00:00.000Z	37 \| good	5.988 \| good	26.847 \| good	39.557 \| good	0.341 \| good	1.285 \| good	0.156 \| good
2026-02-12T20:00:00.000Z	37 \| good	3.052 \| good	12.212 \| good	39.598 \| good	0.346 \| good	1.637 \| good	0.156 \| good
2026-02-12T21:00:00.000Z	36 \| good	1.722 \| good	7.209 \| good	38.712 \| good	0.352 \| good	1.989 \| good	0.157 \| good
2026-02-12T22:00:00.000Z	34 \| good	2.239 \| good	9.115 \| good	37.246 \| good	0.356 \| good	2.666 \| good	0.161 \| good
2026-02-12T23:00:00.000Z	35 \| good	1.905 \| good	7.938 \| good	37.804 \| good	0.361 \| good	3.344 \| good	0.166 \| good
2026-02-13T00:00:00.000Z	34 \| good	2.256 \| good	9.2 \| good	36.642 \| good	0.365 \| good	4.022 \| good	0.171 \| good
2026-02-13T01:00:00.000Z	33 \| good	2.674 \| good	11.032 \| good	36.329 \| good	0.426 \| good	3.884 \| good	0.17 \| good
2026-02-13T02:00:00.000Z	44 \| good	7.62 \| good	33.434 \| good	31.866 \| good	0.487 \| good	3.746 \| good	0.169 \| good
2026-02-13T03:00:00.000Z	54 \| moderate	11.019 \| good	48.737 \| good	33.358 \| good	0.548 \| good	3.609 \| good	0.169 \| good
2026-02-13T04:00:00.000Z	54 \| moderate	11.404 \| good	50.847 \| good	34.189 \| good	0.49 \| good	3.092 \| good	0.164 \| good
2026-02-13T05:00:00.000Z	52 \| moderate	10.296 \| good	45.602 \| good	34.608 \| good	0.431 \| good	2.576 \| good	0.159 \| good
2026-02-13T06:00:00.000Z	39 \| good	3.748 \| good	4.004 \| good	41.922 \| good	0.373 \| good	2.059 \| good	0.155 \| good
2026-02-13T07:00:00.000Z	33 \| good	5.777 \| good	25.082 \| good	33.586 \| good	0.36 \| good	1.89 \| good	0.153 \| good
2026-02-13T08:00:00.000Z	29 \| good	4.263 \| good	18.911 \| good	30.964 \| good	0.347 \| good	1.721 \| good	0.152 \| good
2026-02-13T09:00:00.000Z	28 \| good	3.632 \| good	15.918 \| good	30.167 \| good	0.334 \| good	1.552 \| good	0.15 \| good
2026-02-13T10:00:00.000Z	27 \| good	4.063 \| good	18.08 \| good	29.173 \| good	0.358 \| good	2.099 \| good	0.154 \| good
2026-02-13T11:00:00.000Z	25 \| good	2.815 \| good	11.844 \| good	27.353 \| good	0.383 \| good	2.646 \| good	0.158 \| good
2026-02-13T12:00:00.000Z	35 \| good	3.469 \| good	3.659 \| good	38.134 \| good	0.407 \| good	3.186 \| good	0.163 \| good
2026-02-13T13:00:00.000Z	36 \| good	3.966 \| good	4.198 \| good	38.865 \| good	0.446 \| good	2.957 \| good	0.164 \| good
2026-02-13T14:00:00.000Z	37 \| good	4.214 \| good	4.48 \| good	39.596 \| good	0.484 \| good	2.728 \| good	0.165 \| good
2026-02-13T15:00:00.000Z	37 \| good	3.295 \| good	3.541 \| good	40.327 \| good	0.522 \| good	2.499 \| good	0.166 \| good
2026-02-13T16:00:00.000Z	36 \| good	0.775 \| good	2.983 \| good	39.161 \| good	0.498 \| good	2.205 \| good	0.161 \| good
2026-02-13T17:00:00.000Z	37 \| good	0.876 \| good	3.725 \| good	39.528 \| good	0.473 \| good	1.905 \| good	0.157 \| good
2026-02-13T18:00:00.000Z	40 \| good	2.294 \| good	2.574 \| good	43.177 \| good	0.449 \| good	1.602 \| good	0.152 \| good
2026-02-13T19:00:00.000Z	40 \| good	2.144 \| good	2.421 \| good	43.003 \| good	0.426 \| good	1.997 \| good	0.155 \| good
2026-02-13T20:00:00.000Z	40 \| good	2.047 \| good	2.304 \| good	42.83 \| good	0.403 \| good	2.391 \| good	0.157 \| good
2026-02-13T21:00:00.000Z	40 \| good	2.517 \| good	2.77 \| good	42.656 \| good	0.38 \| good	2.785 \| good	0.159 \| good
2026-02-13T22:00:00.000Z	34 \| good	5.081 \| good	5.401 \| good	37.291 \| good	0.489 \| good	7.37 \| good	0.198 \| good
2026-02-13T23:00:00.000Z	49 \| good	9.129 \| good	9.481 \| good	31.925 \| good	0.598 \| good	11.954 \| good	0.237 \| good
2026-02-14T00:00:00.000Z	52 \| moderate	10.078 \| good	10.469 \| good	26.559 \| good	0.707 \| good	16.538 \| good	0.276 \| good
2026-02-14T01:00:00.000Z	23 \| good	2.195 \| good	8.947 \| good	24.821 \| good	0.673 \| good	13.7 \| good	0.256 \| good

Windham

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Windham, New Hampshire air quality map: Track AQI near you

0.22ppm

How accurate is New Hampshire, USA air quality data?

Air quality data and pollutant measurements for New Hampshire, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.

Source: Ambee Data Sources

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Frequently asked questions

How often is the air quality data for Windham, New Hampshire updated?

The air quality for Windham, New Hampshire is updated every hour.

When was the worst air quality at Windham, New Hampshire in the last 24 hrs?

The worst air quality in Windham, New Hampshire in the last 24 hours was observed at 03:00:00 on 2026-02-11.

When was the best air quality at Windham, New Hampshire in the last 24 hrs?

In the last 24 hrs, the best air quality in Windham, New Hampshire was observed at 12:00:00 on 2026-02-12.

What is the current air quality in Windham, New Hampshire?

The current air quality in Windham, New Hampshire is 28, categorized as Good based on real-time data.

What pollutant is the most common in Windham, New Hampshire?

The most common pollutant in Windham, New Hampshire is O3.

What should I do if the air quality in Windham, New Hampshire is poor?

If the air quality in Windham, New Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Windham, New Hampshire?

The current PM_2.5 concentration at Windham, New Hampshire is 2.12 μg/m³.

What is the current concentration of PM₁₀ in Windham, New Hampshire?

The current PM₁₀ concentration at Windham, New Hampshire is 5.921 μg/m³.

What is the current concentration of carbon monoxide (CO) in Windham, New Hampshire?

The current carbon monoxide (CO) concentration at Windham, New Hampshire is 0.21 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Windham, New Hampshire?

The current sulfur dioxide (SO₂) concentration at Windham, New Hampshire is 0.451 ppb.

What is the current concentration of ozone (O₃) in Windham, New Hampshire?

The current ozone (O₃) concentration at Windham, New Hampshire is 29.936 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Windham, New Hampshire?

The current nitrogen dioxide (NO₂) concentration at Windham, New Hampshire is 2.029 ppb.

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