What are the current PM10 levels at New Hampshire, USA?

The current PM10 levels in New Hampshire, USA are 20.779 μg/m3.

What are the current sulfur dioxide (SO2) levels at New Hampshire, USA?

The current sulfur dioxide (SO2) levels in New Hampshire, USA are 1.033 ppb.

What are the current ozone (O3) levels at New Hampshire, USA?

The current ozone (O3) levels at New Hampshire, USA is 30.831 ppm.

What are the current nitrogen dioxide (NO2) levels at New Hampshire, USA?

The current nitrogen dioxide (NO2) levels at New Hampshire, USA is 8.526 ppb.

Live air quality index in New Hampshire, USA today

Name: Live air pollution levels in New Hampshire, USA today
Creator: Ambee

Stay updated with real-time air quality in New Hampshire, USA 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

New Hampshire, USA

Last updated: ... (Local time)

Major air pollutants in New Hampshire, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.44 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

18.04 μg/m³

155

255

425

605+

Ozone (O₃)

36.66 ppb

201

201+

Sulfur Dioxide (SO₂)

1.03 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.87 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

New Hampshire, USA

Get Live Pollen Counts

New Hampshire, USA

Scroll To Air Quality Map

Track live New Hampshire, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-30T02:00:00.000Z	16 \| good	2.655 \| good	14.216 \| good	16.975 \| good	1.576 \| good	5.249 \| good	0.164 \| good
2025-06-30T03:00:00.000Z	16 \| good	2.638 \| good	16.701 \| good	13.789 \| good	1.52 \| good	4.928 \| good	0.177 \| good
2025-06-30T04:00:00.000Z	16 \| good	2.712 \| good	11.886 \| good	13.826 \| good	1.438 \| good	6.853 \| good	0.187 \| good
2025-06-30T05:00:00.000Z	16 \| good	2.83 \| good	9.621 \| good	11.986 \| good	1.643 \| good	11.201 \| good	0.146 \| good
2025-06-30T06:00:00.000Z	16 \| good	2.88 \| good	11.363 \| good	9.208 \| good	1.659 \| good	9.659 \| good	0.146 \| good
2025-06-30T07:00:00.000Z	22 \| good	3.939 \| good	13.191 \| good	6.245 \| good	1.553 \| good	10.696 \| good	0.214 \| good
2025-06-30T08:00:00.000Z	16 \| good	3.324 \| good	12.982 \| good	5.203 \| good	1.551 \| good	8.75 \| good	0.21 \| good
2025-06-30T09:00:00.000Z	22 \| good	3.663 \| good	14.741 \| good	3.481 \| good	1.554 \| good	8.438 \| good	0.219 \| good
2025-06-30T10:00:00.000Z	17 \| good	3.498 \| good	17.711 \| good	3.23 \| good	1.546 \| good	7.829 \| good	0.22 \| good
2025-06-30T11:00:00.000Z	16 \| good	3.476 \| good	11.421 \| good	3.674 \| good	1.559 \| good	7.216 \| good	0.261 \| good
2025-06-30T12:00:00.000Z	22 \| good	3.767 \| good	9.113 \| good	2.612 \| good	1.549 \| good	3.73 \| good	0.219 \| good
2025-06-30T13:00:00.000Z	22 \| good	3.808 \| good	11.982 \| good	2.671 \| good	1.562 \| good	3.945 \| good	0.186 \| good
2025-06-30T14:00:00.000Z	22 \| good	3.917 \| good	14.527 \| good	8.544 \| good	1.653 \| good	4.13 \| good	0.164 \| good
2025-06-30T15:00:00.000Z	27 \| good	4.638 \| good	13.654 \| good	14.231 \| good	1.419 \| good	4.954 \| good	0.15 \| good
2025-06-30T16:00:00.000Z	27 \| good	4.51 \| good	16.682 \| good	17.039 \| good	1.381 \| good	4.195 \| good	0.146 \| good
2025-06-30T17:00:00.000Z	22 \| good	4.414 \| good	9.431 \| good	20.388 \| good	1.276 \| good	3.518 \| good	0.137 \| good
2025-06-30T18:00:00.000Z	27 \| good	4.451 \| good	10.351 \| good	28.559 \| good	1.672 \| good	3.792 \| good	0.131 \| good
2025-06-30T19:00:00.000Z	33 \| good	4.766 \| good	13.516 \| good	35.746 \| good	1.399 \| good	2.892 \| good	0.131 \| good
2025-06-30T20:00:00.000Z	32 \| good	4.987 \| good	14.285 \| good	34.606 \| good	1.489 \| good	4.56 \| good	0.131 \| good
2025-06-30T21:00:00.000Z	33 \| good	5.323 \| good	17.333 \| good	36.385 \| good	1.584 \| good	3.093 \| good	0.131 \| good
2025-06-30T22:00:00.000Z	36 \| good	5.35 \| good	18.227 \| good	39.288 \| good	1.576 \| good	2.288 \| good	0.139 \| good
2025-06-30T23:00:00.000Z	36 \| good	5.469 \| good	20.03 \| good	38.678 \| good	1.495 \| good	2.514 \| good	0.163 \| good
2025-07-01T00:00:00.000Z	37 \| good	4.999 \| good	16.657 \| good	40.239 \| good	1.494 \| good	2.381 \| good	0.22 \| good
2025-07-01T01:00:00.000Z	34 \| good	6.177 \| good	14.429 \| good	36.557 \| good	1.407 \| good	2.591 \| good	0.236 \| good
2025-07-01T02:00:00.000Z	39 \| good	7.201 \| good	33.314 \| good	41.654 \| good	1.331 \| good	4.238 \| good	0.24 \| good
2025-07-01T03:00:00.000Z	30 \| good	5.114 \| good	12.813 \| good	32.264 \| good	1.651 \| good	4.907 \| good	0.223 \| good
2025-07-01T04:00:00.000Z	27 \| good	5.345 \| good	18.128 \| good	22.425 \| good	1.64 \| good	5.69 \| good	0.223 \| good
2025-07-01T05:00:00.000Z	38 \| good	6.675 \| good	23.642 \| good	18.775 \| good	1.699 \| good	5.509 \| good	0.214 \| good
2025-07-01T06:00:00.000Z	33 \| good	5.86 \| good	20.741 \| good	29.963 \| good	1.55 \| good	4.953 \| good	0.217 \| good
2025-07-01T07:00:00.000Z	33 \| good	6.292 \| good	14.076 \| good	26.389 \| good	1.74 \| good	4.318 \| good	0.212 \| good
2025-07-01T08:00:00.000Z	44 \| good	7.544 \| good	24.548 \| good	25.716 \| good	1.741 \| good	3.613 \| good	0.212 \| good
2025-07-01T09:00:00.000Z	38 \| good	7.005 \| good	22.233 \| good	31.258 \| good	1.817 \| good	5.313 \| good	0.168 \| good
2025-07-01T10:00:00.000Z	38 \| good	6.869 \| good	25.111 \| good	21.354 \| good	1.672 \| good	5.218 \| good	0.176 \| good
2025-07-01T11:00:00.000Z	44 \| good	8.123 \| good	24.934 \| good	24.595 \| good	1.628 \| good	6.06 \| good	0.185 \| good
2025-07-01T12:00:00.000Z	44 \| good	7.896 \| good	32.462 \| good	11.841 \| good	1.737 \| good	5.923 \| good	0.192 \| good
2025-07-01T13:00:00.000Z	49 \| good	8.613 \| good	25.49 \| good	26.709 \| good	1.744 \| good	7.582 \| good	0.192 \| good
2025-07-01T14:00:00.000Z	44 \| good	8.012 \| good	20.054 \| good	28.642 \| good	1.741 \| good	8.6 \| good	0.184 \| good
2025-07-01T15:00:00.000Z	44 \| good	8.259 \| good	16.841 \| good	28.029 \| good	1.742 \| good	7.24 \| good	0.184 \| good
2025-07-01T16:00:00.000Z	44 \| good	8.308 \| good	16.593 \| good	31.76 \| good	1.745 \| good	6.915 \| good	0.159 \| good
2025-07-01T17:00:00.000Z	44 \| good	7.739 \| good	15.417 \| good	27.638 \| good	1.732 \| good	7.768 \| good	0.159 \| good
2025-07-01T18:00:00.000Z	44 \| good	7.547 \| good	15.507 \| good	35.66 \| good	1.824 \| good	8.02 \| good	0.159 \| good
2025-07-01T19:00:00.000Z	34 \| good	6.128 \| good	13.586 \| good	37.443 \| good	1.812 \| good	4.216 \| good	0.159 \| good
2025-07-01T20:00:00.000Z	35 \| good	5.831 \| good	18.094 \| good	37.981 \| good	1.802 \| good	4.694 \| good	0.161 \| good
2025-07-01T21:00:00.000Z	36 \| good	5.539 \| good	16.2 \| good	38.624 \| good	1.824 \| good	6.359 \| good	0.161 \| good
2025-07-01T22:00:00.000Z	39 \| good	5.096 \| good	16.487 \| good	41.652 \| good	1.724 \| good	4.977 \| good	0.169 \| good
2025-07-01T23:00:00.000Z	39 \| good	5.428 \| good	23.713 \| good	42.299 \| good	1.791 \| good	6.559 \| good	0.169 \| good
2025-07-02T00:00:00.000Z	34 \| good	4.724 \| good	18.915 \| good	37.082 \| good	1.787 \| good	6.79 \| good	0.24 \| good
2025-07-02T01:00:00.000Z	34 \| good	5.438 \| good	18.039 \| good	36.662 \| good	1.031 \| good	6.871 \| good	0.249 \| good
2025-07-01T18:00:00.000Z	36 \| good	3.958 \| good	17.086 \| good	38.766 \| good	0.041 \| good	0.773 \| good	0.172 \| good
2025-07-01T19:00:00.000Z	41 \| good	4.323 \| good	19 \| good	44.458 \| good	0.057 \| good	0.805 \| good	0.167 \| good
2025-07-01T20:00:00.000Z	39 \| good	4.229 \| good	19 \| good	42.007 \| good	0.074 \| good	0.836 \| good	0.162 \| good
2025-07-01T21:00:00.000Z	37 \| good	4.023 \| good	17.687 \| good	40.456 \| good	0.091 \| good	0.868 \| good	0.157 \| good
2025-07-01T22:00:00.000Z	38 \| good	3.84 \| good	16.633 \| good	41.339 \| good	0.106 \| good	1.142 \| good	0.156 \| good
2025-07-01T23:00:00.000Z	31 \| good	2.39 \| good	9.74 \| good	32.501 \| good	0.121 \| good	1.417 \| good	0.155 \| good
2025-07-02T00:00:00.000Z	29 \| good	4.603 \| good	20.074 \| good	31.197 \| good	0.137 \| good	1.692 \| good	0.153 \| good
2025-07-02T01:00:00.000Z	28 \| good	3.866 \| good	17.054 \| good	30.328 \| good	0.15 \| good	1.62 \| good	0.152 \| good
2025-07-02T02:00:00.000Z	24 \| good	3.887 \| good	16.926 \| good	26.078 \| good	0.164 \| good	1.547 \| good	0.15 \| good
2025-07-02T03:00:00.000Z	23 \| good	4.097 \| good	17.814 \| good	24.78 \| good	0.178 \| good	1.475 \| good	0.148 \| good
2025-07-02T04:00:00.000Z	22 \| good	4.22 \| good	18.726 \| good	20.542 \| good	0.203 \| good	1.434 \| good	0.148 \| good
2025-07-02T05:00:00.000Z	22 \| good	4.033 \| good	17.757 \| good	20.747 \| good	0.228 \| good	1.392 \| good	0.147 \| good
2025-07-02T06:00:00.000Z	22 \| good	4.08 \| good	18.02 \| good	19.332 \| good	0.253 \| good	1.351 \| good	0.147 \| good
2025-07-02T07:00:00.000Z	22 \| good	4.237 \| good	18.753 \| good	18.555 \| good	0.281 \| good	1.351 \| good	0.148 \| good
2025-07-02T08:00:00.000Z	22 \| good	4.462 \| good	19.213 \| good	16.597 \| good	0.309 \| good	1.35 \| good	0.149 \| good
2025-07-02T09:00:00.000Z	22 \| good	4.016 \| good	17.726 \| good	12.653 \| good	0.337 \| good	1.35 \| good	0.151 \| good
2025-07-02T10:00:00.000Z	27 \| good	4.53 \| good	19.714 \| good	11.09 \| good	0.401 \| good	1.453 \| good	0.155 \| good
2025-07-02T11:00:00.000Z	27 \| good	5.122 \| good	22.031 \| good	15.936 \| good	0.465 \| good	1.557 \| good	0.159 \| good
2025-07-02T12:00:00.000Z	27 \| good	5.192 \| good	22.394 \| good	20.732 \| good	0.528 \| good	1.661 \| good	0.163 \| good
2025-07-02T13:00:00.000Z	27 \| good	4.478 \| good	19.224 \| good	28.672 \| good	0.486 \| good	1.347 \| good	0.158 \| good
2025-07-02T14:00:00.000Z	31 \| good	3.902 \| good	17.069 \| good	34.091 \| good	0.444 \| good	1.033 \| good	0.153 \| good
2025-07-02T15:00:00.000Z	35 \| good	4.594 \| good	19.956 \| good	37.73 \| good	0.402 \| good	0.718 \| good	0.147 \| good
2025-07-02T16:00:00.000Z	39 \| good	5.264 \| good	22.787 \| good	41.803 \| good	0.344 \| good	0.692 \| good	0.145 \| good
2025-07-02T17:00:00.000Z	39 \| good	5.102 \| good	22.027 \| good	41.812 \| good	0.285 \| good	0.666 \| good	0.143 \| good
2025-07-02T18:00:00.000Z	40 \| good	4.417 \| good	19.152 \| good	43.426 \| good	0.226 \| good	0.64 \| good	0.14 \| good
2025-07-02T19:00:00.000Z	36 \| good	3.666 \| good	16.152 \| good	39.399 \| good	0.203 \| good	0.706 \| good	0.14 \| good
2025-07-02T20:00:00.000Z	31 \| good	3.272 \| good	14.259 \| good	32.76 \| good	0.179 \| good	0.771 \| good	0.139 \| good
2025-07-02T21:00:00.000Z	30 \| good	2.451 \| good	10.031 \| good	32.465 \| good	0.155 \| good	0.837 \| good	0.138 \| good
2025-07-02T22:00:00.000Z	28 \| good	2.029 \| good	8.286 \| good	30.268 \| good	0.158 \| good	1.65 \| good	0.148 \| good
2025-07-02T23:00:00.000Z	25 \| good	1.416 \| good	5.986 \| good	27.304 \| good	0.161 \| good	2.464 \| good	0.157 \| good
2025-07-03T00:00:00.000Z	24 \| good	2.147 \| good	9.023 \| good	26.061 \| good	0.164 \| good	3.277 \| good	0.167 \| good
2025-07-03T01:00:00.000Z	20 \| good	2.207 \| good	8.951 \| good	22.366 \| good	0.169 \| good	3.406 \| good	0.172 \| good
2025-07-03T02:00:00.000Z	20 \| good	2.743 \| good	11.112 \| good	22.091 \| good	0.175 \| good	3.535 \| good	0.177 \| good
2025-07-03T03:00:00.000Z	19 \| good	3.221 \| good	14.028 \| good	20.716 \| good	0.18 \| good	3.664 \| good	0.182 \| good
2025-07-03T04:00:00.000Z	16 \| good	3.291 \| good	14.398 \| good	16.193 \| good	0.166 \| good	3.343 \| good	0.18 \| good
2025-07-03T05:00:00.000Z	16 \| good	2.832 \| good	11.973 \| good	11.115 \| good	0.153 \| good	3.023 \| good	0.178 \| good
2025-07-03T06:00:00.000Z	16 \| good	2.675 \| good	10.973 \| good	7.423 \| good	0.139 \| good	2.703 \| good	0.176 \| good
2025-07-03T07:00:00.000Z	16 \| good	2.91 \| good	11.941 \| good	5.678 \| good	0.139 \| good	2.601 \| good	0.176 \| good
2025-07-03T08:00:00.000Z	16 \| good	3.114 \| good	13.507 \| good	4.297 \| good	0.139 \| good	2.499 \| good	0.177 \| good
2025-07-03T09:00:00.000Z	16 \| good	3.072 \| good	12.507 \| good	3.354 \| good	0.139 \| good	2.398 \| good	0.177 \| good
2025-07-03T10:00:00.000Z	22 \| good	3.586 \| good	15.817 \| good	5.214 \| good	0.141 \| good	2.131 \| good	0.179 \| good
2025-07-03T11:00:00.000Z	22 \| good	4.377 \| good	19.253 \| good	7.745 \| good	0.143 \| good	1.865 \| good	0.181 \| good
2025-07-03T12:00:00.000Z	27 \| good	4.968 \| good	21.272 \| good	17.865 \| good	0.146 \| good	1.598 \| good	0.182 \| good
2025-07-03T13:00:00.000Z	27 \| good	5.408 \| good	23 \| good	25.617 \| good	0.131 \| good	1.296 \| good	0.174 \| good
2025-07-03T14:00:00.000Z	27 \| good	5.23 \| good	22.973 \| good	27.919 \| good	0.116 \| good	0.994 \| good	0.166 \| good
2025-07-03T15:00:00.000Z	30 \| good	4.709 \| good	20.687 \| good	31.508 \| good	0.102 \| good	0.691 \| good	0.157 \| good
2025-07-03T16:00:00.000Z	30 \| good	4.417 \| good	19.031 \| good	32.107 \| good	0.111 \| good	0.634 \| good	0.157 \| good
2025-07-03T17:00:00.000Z	31 \| good	3.926 \| good	17.031 \| good	33.56 \| good	0.121 \| good	0.577 \| good	0.156 \| good

New Hampshire

Empower business decisions with accurate air quality data

New Hampshire, USA air quality map: Real-time AQI near you

Air quality in cities of New Hampshire, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
Conway, New Hampshire	44 Good	7.52μg/m³ Good	23.61μg/m³ Good	36.98ppb Good	1.01ppb Good	6.76ppb Good	0.21ppm Good
Hampton, New Hampshire	39 Good	7.42μg/m³ Good	25.28μg/m³ Good	42.46ppb Good	0.68ppb Good	6.19ppb Good	0.22ppm Good
Exeter, New Hampshire	38 Good	7.25μg/m³ Good	26.80μg/m³ Good	41.49ppb Good	0.76ppb Good	6.34ppb Good	0.21ppm Good
Hooksett, New Hampshire	40 Good	5.85μg/m³ Good	24.66μg/m³ Good	42.95ppb Good	1.78ppb Good	6.73ppb Good	0.17ppm Good
Concord, New Hampshire	39 Good	5.43μg/m³ Good	23.71μg/m³ Good	42.30ppb Good	1.79ppb Good	6.56ppb Good	0.17ppm Good
Hudson, New Hampshire	38 Good	5.83μg/m³ Good	22.62μg/m³ Good	40.71ppb Good	1.02ppb Good	7.86ppb Good	0.16ppm Good
Nashua, New Hampshire	38 Good	5.85μg/m³ Good	23.15μg/m³ Good	40.89ppb Good	1.04ppb Good	7.56ppb Good	0.16ppm Good
Raymond, New Hampshire	38 Good	6.04μg/m³ Good	27.97μg/m³ Good	40.63ppb Good	1.09ppb Good	7.09ppb Good	0.19ppm Good
Amherst, New Hampshire	37 Good	5.73μg/m³ Good	16.20μg/m³ Good	40.23ppb Good	1.23ppb Good	6.56ppb Good	0.16ppm Good
Durham, New Hampshire	38 Good	6.76μg/m³ Good	15.95μg/m³ Good	35.37ppb Good	0.72ppb Good	5.81ppb Good	0.21ppm Good
Goffstown, New Hampshire	37 Good	5.76μg/m³ Good	26.65μg/m³ Good	40.42ppb Good	1.40ppb Good	6.52ppb Good	0.17ppm Good
Merrimack, New Hampshire	37 Good	6.14μg/m³ Good	14.21μg/m³ Good	40.30ppb Good	1.21ppb Good	6.62ppb Good	0.15ppm Good
Milford, New Hampshire	37 Good	5.83μg/m³ Good	18.02μg/m³ Good	39.54ppb Good	1.22ppb Good	6.49ppb Good	0.16ppm Good
Portsmouth, New Hampshire	37 Good	5.54μg/m³ Good	11.54μg/m³ Good	39.94ppb Good	0.31ppb Good	5.84ppb Good	0.22ppm Good
Rochester, New Hampshire	37 Good	6.20μg/m³ Good	20.64μg/m³ Good	39.50ppb Good	0.93ppb Good	6.87ppb Good	0.21ppm Good
Bedford, New Hampshire	36 Good	5.96μg/m³ Good	20.92μg/m³ Good	39.25ppb Good	1.30ppb Good	6.64ppb Good	0.15ppm Good
Derry, New Hampshire	36 Good	5.34μg/m³ Good	11.98μg/m³ Good	38.93ppb Good	1.05ppb Good	7.60ppb Good	0.13ppm Good
Manchester, New Hampshire	36 Good	6.01μg/m³ Good	26.94μg/m³ Good	39.36ppb Good	1.32ppb Good	6.72ppb Good	0.16ppm Good
Londonderry, New Hampshire	36 Good	5.41μg/m³ Good	9.09μg/m³ Good	39.03ppb Good	1.10ppb Good	7.09ppb Good	0.11ppm Good
Pelham, New Hampshire	33 Good	6.47μg/m³ Good	26.85μg/m³ Good	34.94ppb Good	0.94ppb Good	7.71ppb Good	0.17ppm Good
Windham, New Hampshire	36 Good	5.38μg/m³ Good	15.22μg/m³ Good	38.94ppb Good	0.99ppb Good	8.45ppb Good	0.15ppm Good
Dover, New Hampshire	34 Good	6.21μg/m³ Good	18.36μg/m³ Good	37.26ppb Good	0.76ppb Good	5.71ppb Good	0.21ppm Good
Keene, New Hampshire	35 Good	5.50μg/m³ Good	23.99μg/m³ Good	38.00ppb Good	1.11ppb Good	5.57ppb Good	0.17ppm Good
Somersworth, New Hampshire	34 Good	6.30μg/m³ Good	19.14μg/m³ Good	36.83ppb Good	0.78ppb Good	5.64ppb Good	0.21ppm Good
Salem, New Hampshire	34 Good	4.52μg/m³ Good	16.91μg/m³ Good	37.36ppb Good	0.90ppb Good	8.22ppb Good	0.19ppm Good
Claremont, New Hampshire	34 Good	4.99μg/m³ Good	16.32μg/m³ Good	36.57ppb Good	0.99ppb Good	5.65ppb Good	0.17ppm Good
Laconia, New Hampshire	34 Good	2.82μg/m³ Good	13.69μg/m³ Good	37.05ppb Good	1.21ppb Good	6.48ppb Good	0.20ppm Good
Hanover, New Hampshire	33 Good	4.52μg/m³ Good	20.08μg/m³ Good	35.81ppb Good	0.95ppb Good	5.69ppb Good	0.17ppm Good
Lebanon, New Hampshire	33 Good	4.51μg/m³ Good	20.05μg/m³ Good	35.90ppb Good	0.96ppb Good	5.70ppb Good	0.17ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.33ppm

How accurate is New Hampshire, USA air quality data?

Air quality measurements for New Hampshire, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently is the air quality data for New Hampshire, USA updated?

Air quality data for New Hampshire, USA is updated on an hourly basis.

When did New Hampshire, USA experience the worst air quality in the last 24 hours?

The worst air quality in New Hampshire, USA was recorded at 01:00:00 on 2025-07-01.

When did New Hampshire, USA have its best air quality in the last 24 hours?

The best air quality in New Hampshire, USA was recorded at 05:00:00 on 2025-06-30.

What is the real-time air quality index for New Hampshire, USA?

The real-time air quality index in New Hampshire, USA is 44, currently categorized as Good.

Which pollutant is found most often in New Hampshire, USA?

The most common pollutant in New Hampshire, USA is PM2.5.

What can I do if the air quality in New Hampshire, USA is poor?

If the air quality in New Hampshire, USA is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in New Hampshire, USA?

The measured PM_2.5 levels in New Hampshire, USA at present are 7.77 μg/m³.

What are the current PM₁₀ levels at New Hampshire, USA?

The current PM₁₀ levels in New Hampshire, USA are 20.779 μg/m³.

What are the current carbon monoxide (CO) levels at New Hampshire, USA?

The current carbon monoxide (CO) level in New Hampshire, USA is 0.171 ppm.

What are the current sulfur dioxide (SO₂) levels at New Hampshire, USA?

The current sulfur dioxide (SO₂) levels in New Hampshire, USA are 1.033 ppb.

What are the current ozone (O₃) levels at New Hampshire, USA?

The current ozone (O₃) levels at New Hampshire, USA is 30.831 ppm.

What are the current nitrogen dioxide (NO₂) levels at New Hampshire, USA?

The current nitrogen dioxide (NO₂) levels at New Hampshire, USA is 8.526 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-30T02:00:00.000Z	16 \| good	2.655 \| good	14.216 \| good	16.975 \| good	1.576 \| good	5.249 \| good	0.164 \| good
2025-06-30T03:00:00.000Z	16 \| good	2.638 \| good	16.701 \| good	13.789 \| good	1.52 \| good	4.928 \| good	0.177 \| good
2025-06-30T04:00:00.000Z	16 \| good	2.712 \| good	11.886 \| good	13.826 \| good	1.438 \| good	6.853 \| good	0.187 \| good
2025-06-30T05:00:00.000Z	16 \| good	2.83 \| good	9.621 \| good	11.986 \| good	1.643 \| good	11.201 \| good	0.146 \| good
2025-06-30T06:00:00.000Z	16 \| good	2.88 \| good	11.363 \| good	9.208 \| good	1.659 \| good	9.659 \| good	0.146 \| good
2025-06-30T07:00:00.000Z	22 \| good	3.939 \| good	13.191 \| good	6.245 \| good	1.553 \| good	10.696 \| good	0.214 \| good
2025-06-30T08:00:00.000Z	16 \| good	3.324 \| good	12.982 \| good	5.203 \| good	1.551 \| good	8.75 \| good	0.21 \| good
2025-06-30T09:00:00.000Z	22 \| good	3.663 \| good	14.741 \| good	3.481 \| good	1.554 \| good	8.438 \| good	0.219 \| good
2025-06-30T10:00:00.000Z	17 \| good	3.498 \| good	17.711 \| good	3.23 \| good	1.546 \| good	7.829 \| good	0.22 \| good
2025-06-30T11:00:00.000Z	16 \| good	3.476 \| good	11.421 \| good	3.674 \| good	1.559 \| good	7.216 \| good	0.261 \| good
2025-06-30T12:00:00.000Z	22 \| good	3.767 \| good	9.113 \| good	2.612 \| good	1.549 \| good	3.73 \| good	0.219 \| good
2025-06-30T13:00:00.000Z	22 \| good	3.808 \| good	11.982 \| good	2.671 \| good	1.562 \| good	3.945 \| good	0.186 \| good
2025-06-30T14:00:00.000Z	22 \| good	3.917 \| good	14.527 \| good	8.544 \| good	1.653 \| good	4.13 \| good	0.164 \| good
2025-06-30T15:00:00.000Z	27 \| good	4.638 \| good	13.654 \| good	14.231 \| good	1.419 \| good	4.954 \| good	0.15 \| good
2025-06-30T16:00:00.000Z	27 \| good	4.51 \| good	16.682 \| good	17.039 \| good	1.381 \| good	4.195 \| good	0.146 \| good
2025-06-30T17:00:00.000Z	22 \| good	4.414 \| good	9.431 \| good	20.388 \| good	1.276 \| good	3.518 \| good	0.137 \| good
2025-06-30T18:00:00.000Z	27 \| good	4.451 \| good	10.351 \| good	28.559 \| good	1.672 \| good	3.792 \| good	0.131 \| good
2025-06-30T19:00:00.000Z	33 \| good	4.766 \| good	13.516 \| good	35.746 \| good	1.399 \| good	2.892 \| good	0.131 \| good
2025-06-30T20:00:00.000Z	32 \| good	4.987 \| good	14.285 \| good	34.606 \| good	1.489 \| good	4.56 \| good	0.131 \| good
2025-06-30T21:00:00.000Z	33 \| good	5.323 \| good	17.333 \| good	36.385 \| good	1.584 \| good	3.093 \| good	0.131 \| good
2025-06-30T22:00:00.000Z	36 \| good	5.35 \| good	18.227 \| good	39.288 \| good	1.576 \| good	2.288 \| good	0.139 \| good
2025-06-30T23:00:00.000Z	36 \| good	5.469 \| good	20.03 \| good	38.678 \| good	1.495 \| good	2.514 \| good	0.163 \| good
2025-07-01T00:00:00.000Z	37 \| good	4.999 \| good	16.657 \| good	40.239 \| good	1.494 \| good	2.381 \| good	0.22 \| good
2025-07-01T01:00:00.000Z	34 \| good	6.177 \| good	14.429 \| good	36.557 \| good	1.407 \| good	2.591 \| good	0.236 \| good
2025-07-01T02:00:00.000Z	39 \| good	7.201 \| good	33.314 \| good	41.654 \| good	1.331 \| good	4.238 \| good	0.24 \| good
2025-07-01T03:00:00.000Z	30 \| good	5.114 \| good	12.813 \| good	32.264 \| good	1.651 \| good	4.907 \| good	0.223 \| good
2025-07-01T04:00:00.000Z	27 \| good	5.345 \| good	18.128 \| good	22.425 \| good	1.64 \| good	5.69 \| good	0.223 \| good
2025-07-01T05:00:00.000Z	38 \| good	6.675 \| good	23.642 \| good	18.775 \| good	1.699 \| good	5.509 \| good	0.214 \| good
2025-07-01T06:00:00.000Z	33 \| good	5.86 \| good	20.741 \| good	29.963 \| good	1.55 \| good	4.953 \| good	0.217 \| good
2025-07-01T07:00:00.000Z	33 \| good	6.292 \| good	14.076 \| good	26.389 \| good	1.74 \| good	4.318 \| good	0.212 \| good
2025-07-01T08:00:00.000Z	44 \| good	7.544 \| good	24.548 \| good	25.716 \| good	1.741 \| good	3.613 \| good	0.212 \| good
2025-07-01T09:00:00.000Z	38 \| good	7.005 \| good	22.233 \| good	31.258 \| good	1.817 \| good	5.313 \| good	0.168 \| good
2025-07-01T10:00:00.000Z	38 \| good	6.869 \| good	25.111 \| good	21.354 \| good	1.672 \| good	5.218 \| good	0.176 \| good
2025-07-01T11:00:00.000Z	44 \| good	8.123 \| good	24.934 \| good	24.595 \| good	1.628 \| good	6.06 \| good	0.185 \| good
2025-07-01T12:00:00.000Z	44 \| good	7.896 \| good	32.462 \| good	11.841 \| good	1.737 \| good	5.923 \| good	0.192 \| good
2025-07-01T13:00:00.000Z	49 \| good	8.613 \| good	25.49 \| good	26.709 \| good	1.744 \| good	7.582 \| good	0.192 \| good
2025-07-01T14:00:00.000Z	44 \| good	8.012 \| good	20.054 \| good	28.642 \| good	1.741 \| good	8.6 \| good	0.184 \| good
2025-07-01T15:00:00.000Z	44 \| good	8.259 \| good	16.841 \| good	28.029 \| good	1.742 \| good	7.24 \| good	0.184 \| good
2025-07-01T16:00:00.000Z	44 \| good	8.308 \| good	16.593 \| good	31.76 \| good	1.745 \| good	6.915 \| good	0.159 \| good
2025-07-01T17:00:00.000Z	44 \| good	7.739 \| good	15.417 \| good	27.638 \| good	1.732 \| good	7.768 \| good	0.159 \| good
2025-07-01T18:00:00.000Z	44 \| good	7.547 \| good	15.507 \| good	35.66 \| good	1.824 \| good	8.02 \| good	0.159 \| good
2025-07-01T19:00:00.000Z	34 \| good	6.128 \| good	13.586 \| good	37.443 \| good	1.812 \| good	4.216 \| good	0.159 \| good
2025-07-01T20:00:00.000Z	35 \| good	5.831 \| good	18.094 \| good	37.981 \| good	1.802 \| good	4.694 \| good	0.161 \| good
2025-07-01T21:00:00.000Z	36 \| good	5.539 \| good	16.2 \| good	38.624 \| good	1.824 \| good	6.359 \| good	0.161 \| good
2025-07-01T22:00:00.000Z	39 \| good	5.096 \| good	16.487 \| good	41.652 \| good	1.724 \| good	4.977 \| good	0.169 \| good
2025-07-01T23:00:00.000Z	39 \| good	5.428 \| good	23.713 \| good	42.299 \| good	1.791 \| good	6.559 \| good	0.169 \| good
2025-07-02T00:00:00.000Z	34 \| good	4.724 \| good	18.915 \| good	37.082 \| good	1.787 \| good	6.79 \| good	0.24 \| good
2025-07-02T01:00:00.000Z	34 \| good	5.438 \| good	18.039 \| good	36.662 \| good	1.031 \| good	6.871 \| good	0.249 \| good
2025-07-01T18:00:00.000Z	36 \| good	3.958 \| good	17.086 \| good	38.766 \| good	0.041 \| good	0.773 \| good	0.172 \| good
2025-07-01T19:00:00.000Z	41 \| good	4.323 \| good	19 \| good	44.458 \| good	0.057 \| good	0.805 \| good	0.167 \| good
2025-07-01T20:00:00.000Z	39 \| good	4.229 \| good	19 \| good	42.007 \| good	0.074 \| good	0.836 \| good	0.162 \| good
2025-07-01T21:00:00.000Z	37 \| good	4.023 \| good	17.687 \| good	40.456 \| good	0.091 \| good	0.868 \| good	0.157 \| good
2025-07-01T22:00:00.000Z	38 \| good	3.84 \| good	16.633 \| good	41.339 \| good	0.106 \| good	1.142 \| good	0.156 \| good
2025-07-01T23:00:00.000Z	31 \| good	2.39 \| good	9.74 \| good	32.501 \| good	0.121 \| good	1.417 \| good	0.155 \| good
2025-07-02T00:00:00.000Z	29 \| good	4.603 \| good	20.074 \| good	31.197 \| good	0.137 \| good	1.692 \| good	0.153 \| good
2025-07-02T01:00:00.000Z	28 \| good	3.866 \| good	17.054 \| good	30.328 \| good	0.15 \| good	1.62 \| good	0.152 \| good
2025-07-02T02:00:00.000Z	24 \| good	3.887 \| good	16.926 \| good	26.078 \| good	0.164 \| good	1.547 \| good	0.15 \| good
2025-07-02T03:00:00.000Z	23 \| good	4.097 \| good	17.814 \| good	24.78 \| good	0.178 \| good	1.475 \| good	0.148 \| good
2025-07-02T04:00:00.000Z	22 \| good	4.22 \| good	18.726 \| good	20.542 \| good	0.203 \| good	1.434 \| good	0.148 \| good
2025-07-02T05:00:00.000Z	22 \| good	4.033 \| good	17.757 \| good	20.747 \| good	0.228 \| good	1.392 \| good	0.147 \| good
2025-07-02T06:00:00.000Z	22 \| good	4.08 \| good	18.02 \| good	19.332 \| good	0.253 \| good	1.351 \| good	0.147 \| good
2025-07-02T07:00:00.000Z	22 \| good	4.237 \| good	18.753 \| good	18.555 \| good	0.281 \| good	1.351 \| good	0.148 \| good
2025-07-02T08:00:00.000Z	22 \| good	4.462 \| good	19.213 \| good	16.597 \| good	0.309 \| good	1.35 \| good	0.149 \| good
2025-07-02T09:00:00.000Z	22 \| good	4.016 \| good	17.726 \| good	12.653 \| good	0.337 \| good	1.35 \| good	0.151 \| good
2025-07-02T10:00:00.000Z	27 \| good	4.53 \| good	19.714 \| good	11.09 \| good	0.401 \| good	1.453 \| good	0.155 \| good
2025-07-02T11:00:00.000Z	27 \| good	5.122 \| good	22.031 \| good	15.936 \| good	0.465 \| good	1.557 \| good	0.159 \| good
2025-07-02T12:00:00.000Z	27 \| good	5.192 \| good	22.394 \| good	20.732 \| good	0.528 \| good	1.661 \| good	0.163 \| good
2025-07-02T13:00:00.000Z	27 \| good	4.478 \| good	19.224 \| good	28.672 \| good	0.486 \| good	1.347 \| good	0.158 \| good
2025-07-02T14:00:00.000Z	31 \| good	3.902 \| good	17.069 \| good	34.091 \| good	0.444 \| good	1.033 \| good	0.153 \| good
2025-07-02T15:00:00.000Z	35 \| good	4.594 \| good	19.956 \| good	37.73 \| good	0.402 \| good	0.718 \| good	0.147 \| good
2025-07-02T16:00:00.000Z	39 \| good	5.264 \| good	22.787 \| good	41.803 \| good	0.344 \| good	0.692 \| good	0.145 \| good
2025-07-02T17:00:00.000Z	39 \| good	5.102 \| good	22.027 \| good	41.812 \| good	0.285 \| good	0.666 \| good	0.143 \| good
2025-07-02T18:00:00.000Z	40 \| good	4.417 \| good	19.152 \| good	43.426 \| good	0.226 \| good	0.64 \| good	0.14 \| good
2025-07-02T19:00:00.000Z	36 \| good	3.666 \| good	16.152 \| good	39.399 \| good	0.203 \| good	0.706 \| good	0.14 \| good
2025-07-02T20:00:00.000Z	31 \| good	3.272 \| good	14.259 \| good	32.76 \| good	0.179 \| good	0.771 \| good	0.139 \| good
2025-07-02T21:00:00.000Z	30 \| good	2.451 \| good	10.031 \| good	32.465 \| good	0.155 \| good	0.837 \| good	0.138 \| good
2025-07-02T22:00:00.000Z	28 \| good	2.029 \| good	8.286 \| good	30.268 \| good	0.158 \| good	1.65 \| good	0.148 \| good
2025-07-02T23:00:00.000Z	25 \| good	1.416 \| good	5.986 \| good	27.304 \| good	0.161 \| good	2.464 \| good	0.157 \| good
2025-07-03T00:00:00.000Z	24 \| good	2.147 \| good	9.023 \| good	26.061 \| good	0.164 \| good	3.277 \| good	0.167 \| good
2025-07-03T01:00:00.000Z	20 \| good	2.207 \| good	8.951 \| good	22.366 \| good	0.169 \| good	3.406 \| good	0.172 \| good
2025-07-03T02:00:00.000Z	20 \| good	2.743 \| good	11.112 \| good	22.091 \| good	0.175 \| good	3.535 \| good	0.177 \| good
2025-07-03T03:00:00.000Z	19 \| good	3.221 \| good	14.028 \| good	20.716 \| good	0.18 \| good	3.664 \| good	0.182 \| good
2025-07-03T04:00:00.000Z	16 \| good	3.291 \| good	14.398 \| good	16.193 \| good	0.166 \| good	3.343 \| good	0.18 \| good
2025-07-03T05:00:00.000Z	16 \| good	2.832 \| good	11.973 \| good	11.115 \| good	0.153 \| good	3.023 \| good	0.178 \| good
2025-07-03T06:00:00.000Z	16 \| good	2.675 \| good	10.973 \| good	7.423 \| good	0.139 \| good	2.703 \| good	0.176 \| good
2025-07-03T07:00:00.000Z	16 \| good	2.91 \| good	11.941 \| good	5.678 \| good	0.139 \| good	2.601 \| good	0.176 \| good
2025-07-03T08:00:00.000Z	16 \| good	3.114 \| good	13.507 \| good	4.297 \| good	0.139 \| good	2.499 \| good	0.177 \| good
2025-07-03T09:00:00.000Z	16 \| good	3.072 \| good	12.507 \| good	3.354 \| good	0.139 \| good	2.398 \| good	0.177 \| good
2025-07-03T10:00:00.000Z	22 \| good	3.586 \| good	15.817 \| good	5.214 \| good	0.141 \| good	2.131 \| good	0.179 \| good
2025-07-03T11:00:00.000Z	22 \| good	4.377 \| good	19.253 \| good	7.745 \| good	0.143 \| good	1.865 \| good	0.181 \| good
2025-07-03T12:00:00.000Z	27 \| good	4.968 \| good	21.272 \| good	17.865 \| good	0.146 \| good	1.598 \| good	0.182 \| good
2025-07-03T13:00:00.000Z	27 \| good	5.408 \| good	23 \| good	25.617 \| good	0.131 \| good	1.296 \| good	0.174 \| good
2025-07-03T14:00:00.000Z	27 \| good	5.23 \| good	22.973 \| good	27.919 \| good	0.116 \| good	0.994 \| good	0.166 \| good
2025-07-03T15:00:00.000Z	30 \| good	4.709 \| good	20.687 \| good	31.508 \| good	0.102 \| good	0.691 \| good	0.157 \| good
2025-07-03T16:00:00.000Z	30 \| good	4.417 \| good	19.031 \| good	32.107 \| good	0.111 \| good	0.634 \| good	0.157 \| good
2025-07-03T17:00:00.000Z	31 \| good	3.926 \| good	17.031 \| good	33.56 \| good	0.121 \| good	0.577 \| good	0.156 \| good

Live air quality index in New Hampshire, USA today

Major air pollutants in New Hampshire, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live New Hampshire, USA air quality forecast and history

Empower business decisions with accurate air quality data

New Hampshire, USA air quality map: Real-time AQI near you

Air quality in cities of New Hampshire, USA

Air quality in nearby states

Massachusetts, USA

Vermont, USA

Rhode Island, USA

Connecticut, USA

Maine, USA

New York, USA

How accurate is New Hampshire, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for New Hampshire, USA updated?

When did New Hampshire, USA experience the worst air quality in the last 24 hours?

When did New Hampshire, USA have its best air quality in the last 24 hours?

What is the real-time air quality index for New Hampshire, USA?

Which pollutant is found most often in New Hampshire, USA?

What can I do if the air quality in New Hampshire, USA is poor?

What are the current PM2.5 levels in New Hampshire, USA?

What are the current PM10 levels at New Hampshire, USA?

What are the current carbon monoxide (CO) levels at New Hampshire, USA?

What are the current sulfur dioxide (SO2) levels at New Hampshire, USA?

What are the current ozone (O3) levels at New Hampshire, USA?

What are the current nitrogen dioxide (NO2) levels at New Hampshire, USA?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in New Hampshire, USA?

What are the current PM₁₀ levels at New Hampshire, USA?

What are the current sulfur dioxide (SO₂) levels at New Hampshire, USA?

What are the current ozone (O₃) levels at New Hampshire, USA?

What are the current nitrogen dioxide (NO₂) levels at New Hampshire, USA?