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

The current PM10 levels in New Hampshire, USA are 12.651 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 0.446 ppb.

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

The current ozone (O3) levels at New Hampshire, USA is 30.123 ppm.

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

The current nitrogen dioxide (NO2) levels at New Hampshire, USA is 1.57 ppb.

Real-time air quality index in New Hampshire, USA today

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

The measured PM2.5 levels in New Hampshire, USA at present are 3.925 μg/m3.

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)

Common air pollutants in New Hampshire, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.89 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

12.71 μg/m³

155

255

425

605+

Ozone (O₃)

28.20 ppb

201

201+

Sulfur Dioxide (SO₂)

0.44 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

1.24 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.13 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-04-17T02:00:00.000Z	38 \| good	6.992 \| good	37.305 \| good	31.949 \| good	0.458 \| good	6.521 \| good	0.239 \| good
2026-04-17T03:00:00.000Z	49 \| good	9.175 \| good	41.262 \| good	40.324 \| good	0.745 \| good	6.834 \| good	0.201 \| good
2026-04-17T04:00:00.000Z	44 \| good	8.391 \| good	27.704 \| good	29.239 \| good	0.461 \| good	7.552 \| good	0.179 \| good
2026-04-17T05:00:00.000Z	27 \| good	5.439 \| good	22.627 \| good	28.791 \| good	0.378 \| good	2.529 \| good	0.214 \| good
2026-04-17T06:00:00.000Z	27 \| good	5.065 \| good	16.07 \| good	25.937 \| good	0.376 \| good	2.425 \| good	0.214 \| good
2026-04-17T07:00:00.000Z	22 \| good	4.047 \| good	13.284 \| good	24.154 \| good	0.369 \| good	4.145 \| good	0.214 \| good
2026-04-17T08:00:00.000Z	22 \| good	4.4 \| good	10.24 \| good	23.393 \| good	0.386 \| good	5.74 \| good	0.214 \| good
2026-04-17T09:00:00.000Z	27 \| good	4.804 \| good	20.968 \| good	20.585 \| good	0.419 \| good	7.656 \| good	0.188 \| good
2026-04-17T10:00:00.000Z	38 \| good	7.154 \| good	15.584 \| good	21.151 \| good	0.462 \| good	8.883 \| good	0.188 \| good
2026-04-17T11:00:00.000Z	33 \| good	5.85 \| good	9.87 \| good	19.367 \| good	0.46 \| good	7.411 \| good	0.214 \| good
2026-04-17T12:00:00.000Z	33 \| good	5.741 \| good	15.628 \| good	16.565 \| good	0.422 \| good	9.509 \| good	0.278 \| good
2026-04-17T13:00:00.000Z	38 \| good	7.439 \| good	11.86 \| good	15.911 \| good	0.424 \| good	9.497 \| good	0.278 \| good
2026-04-17T14:00:00.000Z	38 \| good	6.776 \| good	14.907 \| good	14.851 \| good	0.445 \| good	3.776 \| good	0.317 \| good
2026-04-17T15:00:00.000Z	54 \| moderate	8.361 \| good	62.165 \| fine	18.424 \| good	0.415 \| good	2.695 \| good	0.304 \| good
2026-04-17T16:00:00.000Z	49 \| good	9.127 \| good	25.161 \| good	18.733 \| good	0.427 \| good	1.521 \| good	0.239 \| good
2026-04-17T17:00:00.000Z	23 \| good	3.247 \| good	11.906 \| good	24.602 \| good	0.482 \| good	1.707 \| good	0.239 \| good
2026-04-17T18:00:00.000Z	23 \| good	4.107 \| good	8.092 \| good	25.211 \| good	0.453 \| good	2.054 \| good	0.201 \| good
2026-04-17T19:00:00.000Z	26 \| good	3.619 \| good	9.36 \| good	28.379 \| good	0.203 \| good	1.524 \| good	0.165 \| good
2026-04-17T20:00:00.000Z	29 \| good	4.316 \| good	12.797 \| good	31.333 \| good	0.203 \| good	1.55 \| good	0.165 \| good
2026-04-17T21:00:00.000Z	30 \| good	2.907 \| good	7.949 \| good	31.731 \| good	0.333 \| good	1.317 \| good	0.178 \| good
2026-04-17T22:00:00.000Z	31 \| good	2.814 \| good	7.168 \| good	33.222 \| good	0.281 \| good	1.533 \| good	0.165 \| good
2026-04-17T23:00:00.000Z	31 \| good	3.42 \| good	11.772 \| good	33.553 \| good	0.282 \| good	1.522 \| good	0.152 \| good
2026-04-18T00:00:00.000Z	32 \| good	3.438 \| good	14.081 \| good	34.735 \| good	0.256 \| good	2.671 \| good	0.165 \| good
2026-04-18T01:00:00.000Z	31 \| good	3.515 \| good	12.674 \| good	33.353 \| good	0.259 \| good	6.156 \| good	0.166 \| good
2026-04-18T02:00:00.000Z	30 \| good	4.271 \| good	19.152 \| good	31.656 \| good	0.272 \| good	5.151 \| good	0.201 \| good
2026-04-18T03:00:00.000Z	27 \| good	4.842 \| good	14.086 \| good	27.682 \| good	0.321 \| good	4.755 \| good	0.24 \| good
2026-04-18T04:00:00.000Z	27 \| good	4.541 \| good	11.546 \| good	23.719 \| good	0.333 \| good	6.971 \| good	0.24 \| good
2026-04-18T05:00:00.000Z	27 \| good	5.409 \| good	15.976 \| good	14.986 \| good	0.243 \| good	6.74 \| good	0.201 \| good
2026-04-18T06:00:00.000Z	27 \| good	5.005 \| good	16.217 \| good	14.966 \| good	0.241 \| good	6.56 \| good	0.201 \| good
2026-04-18T07:00:00.000Z	22 \| good	4.132 \| good	8.991 \| good	15.533 \| good	0.25 \| good	5.873 \| good	0.253 \| good
2026-04-18T08:00:00.000Z	22 \| good	4.319 \| good	12.265 \| good	12.753 \| good	0.377 \| good	7.586 \| good	0.266 \| good
2026-04-18T09:00:00.000Z	22 \| good	4.16 \| good	18.057 \| good	10.981 \| good	0.331 \| good	6.073 \| good	0.175 \| good
2026-04-18T10:00:00.000Z	27 \| good	5.19 \| good	16.4 \| good	9.078 \| good	0.356 \| good	5.245 \| good	0.135 \| good
2026-04-18T11:00:00.000Z	22 \| good	3.903 \| good	8.08 \| good	9.615 \| good	0.412 \| good	5.511 \| good	0.135 \| good
2026-04-18T12:00:00.000Z	22 \| good	4.431 \| good	13.691 \| good	9.361 \| good	0.411 \| good	3.414 \| good	0.135 \| good
2026-04-18T13:00:00.000Z	22 \| good	4.293 \| good	13.157 \| good	10.721 \| good	0.411 \| good	2.618 \| good	0.152 \| good
2026-04-18T14:00:00.000Z	16 \| good	3.464 \| good	8.774 \| good	13.999 \| good	0.413 \| good	1.638 \| good	0.152 \| good
2026-04-18T15:00:00.000Z	22 \| good	3.539 \| good	10.126 \| good	18.963 \| good	0.455 \| good	1.152 \| good	0.15 \| good
2026-04-18T16:00:00.000Z	22 \| good	4.069 \| good	10.036 \| good	20.222 \| good	0.463 \| good	0.89 \| good	0.15 \| good
2026-04-18T17:00:00.000Z	19 \| good	3.023 \| good	6.95 \| good	21.219 \| good	0.462 \| good	1.272 \| good	0.15 \| good
2026-04-18T18:00:00.000Z	23 \| good	3.513 \| good	14.372 \| good	24.971 \| good	0.455 \| good	1.001 \| good	0.15 \| good
2026-04-18T19:00:00.000Z	30 \| good	3.057 \| good	10.711 \| good	31.805 \| good	0.407 \| good	1.191 \| good	0.15 \| good
2026-04-18T20:00:00.000Z	31 \| good	3.619 \| good	9.575 \| good	34.284 \| good	0.482 \| good	0.843 \| good	0.15 \| good
2026-04-18T21:00:00.000Z	32 \| good	4.712 \| good	15.856 \| good	34.566 \| good	0.538 \| good	0.814 \| good	0.15 \| good
2026-04-18T22:00:00.000Z	32 \| good	4.405 \| good	17.747 \| good	34.711 \| good	0.468 \| good	1.195 \| good	0.135 \| good
2026-04-18T23:00:00.000Z	31 \| good	3.398 \| good	11.373 \| good	33.835 \| good	0.463 \| good	1.208 \| good	0.118 \| good
2026-04-19T00:00:00.000Z	30 \| good	3.754 \| good	14.902 \| good	32.153 \| good	0.458 \| good	0.965 \| good	0.133 \| good
2026-04-19T01:00:00.000Z	27 \| good	3.796 \| good	9.503 \| good	29.408 \| good	0.446 \| good	1.498 \| good	0.148 \| good
2026-04-19T01:00:00.000Z	26 \| good	3.892 \| good	12.706 \| good	28.204 \| good	0.44 \| good	1.241 \| good	0.134 \| good
2026-04-19T00:00:00.000Z	27 \| good	5.491 \| good	23.606 \| good	27.453 \| good	0.202 \| good	2.449 \| good	0.165 \| good
2026-04-19T01:00:00.000Z	33 \| good	5.845 \| good	25.076 \| good	25.793 \| good	0.236 \| good	2.512 \| good	0.167 \| good
2026-04-19T02:00:00.000Z	33 \| good	6.123 \| good	27 \| good	27.016 \| good	0.271 \| good	2.575 \| good	0.168 \| good
2026-04-19T03:00:00.000Z	33 \| good	5.953 \| good	26.736 \| good	28.013 \| good	0.305 \| good	2.639 \| good	0.17 \| good
2026-04-19T04:00:00.000Z	33 \| good	5.672 \| good	24.605 \| good	33.503 \| good	0.346 \| good	2.636 \| good	0.17 \| good
2026-04-19T05:00:00.000Z	33 \| good	5.624 \| good	23.988 \| good	33.429 \| good	0.387 \| good	2.634 \| good	0.17 \| good
2026-04-19T06:00:00.000Z	33 \| good	5.78 \| good	24.873 \| good	30.585 \| good	0.429 \| good	2.631 \| good	0.17 \| good
2026-04-19T07:00:00.000Z	33 \| good	5.937 \| good	26.575 \| good	27.212 \| good	0.498 \| good	2.945 \| good	0.171 \| good
2026-04-19T08:00:00.000Z	33 \| good	5.777 \| good	25 \| good	25.409 \| good	0.567 \| good	3.258 \| good	0.173 \| good
2026-04-19T09:00:00.000Z	33 \| good	6.102 \| good	27 \| good	21.672 \| good	0.636 \| good	3.571 \| good	0.174 \| good
2026-04-19T10:00:00.000Z	33 \| good	6.238 \| good	27.503 \| good	22.288 \| good	0.643 \| good	4.208 \| good	0.181 \| good
2026-04-19T11:00:00.000Z	38 \| good	7.289 \| good	32.361 \| good	17.433 \| good	0.649 \| good	4.844 \| good	0.188 \| good
2026-04-19T12:00:00.000Z	44 \| good	8.457 \| good	37.255 \| good	17.225 \| good	0.656 \| good	5.481 \| good	0.195 \| good
2026-04-19T13:00:00.000Z	49 \| good	9.167 \| good	40.932 \| good	18.957 \| good	0.54 \| good	5.067 \| good	0.192 \| good
2026-04-19T14:00:00.000Z	52 \| moderate	9.636 \| good	42.965 \| good	22.204 \| good	0.425 \| good	4.652 \| good	0.189 \| good
2026-04-19T15:00:00.000Z	52 \| moderate	9.867 \| good	43.8 \| good	22.985 \| good	0.309 \| good	4.238 \| good	0.186 \| good
2026-04-19T16:00:00.000Z	33 \| good	6.143 \| good	26.639 \| good	27.622 \| good	0.227 \| good	3.166 \| good	0.166 \| good
2026-04-19T17:00:00.000Z	32 \| good	1.054 \| good	4.092 \| good	35.047 \| good	0.145 \| good	2.095 \| good	0.147 \| good
2026-04-19T18:00:00.000Z	31 \| good	1.774 \| good	7.088 \| good	33.476 \| good	0.062 \| good	1.023 \| good	0.127 \| good
2026-04-19T19:00:00.000Z	28 \| good	2.143 \| good	8.973 \| good	29.714 \| good	0.081 \| good	1.342 \| good	0.133 \| good
2026-04-19T20:00:00.000Z	29 \| good	2.074 \| good	8.1 \| good	30.771 \| good	0.099 \| good	1.66 \| good	0.138 \| good
2026-04-19T21:00:00.000Z	31 \| good	1.626 \| good	6.76 \| good	33.307 \| good	0.118 \| good	1.978 \| good	0.144 \| good
2026-04-19T22:00:00.000Z	31 \| good	1.189 \| good	4.9 \| good	34.241 \| good	0.125 \| good	2.035 \| good	0.147 \| good
2026-04-19T23:00:00.000Z	35 \| good	1.618 \| good	6.726 \| good	37.817 \| good	0.132 \| good	2.092 \| good	0.15 \| good
2026-04-20T00:00:00.000Z	34 \| good	2.03 \| good	8.181 \| good	37.051 \| good	0.139 \| good	2.148 \| good	0.153 \| good
2026-04-20T01:00:00.000Z	31 \| good	2.056 \| good	8.166 \| good	33.616 \| good	0.175 \| good	2.609 \| good	0.159 \| good
2026-04-20T02:00:00.000Z	28 \| good	2.244 \| good	9.166 \| good	30.03 \| good	0.211 \| good	3.069 \| good	0.166 \| good
2026-04-20T03:00:00.000Z	26 \| good	2.363 \| good	9.972 \| good	27.509 \| good	0.246 \| good	3.529 \| good	0.172 \| good
2026-04-20T04:00:00.000Z	28 \| good	2.966 \| good	12.054 \| good	30.384 \| good	0.226 \| good	2.759 \| good	0.163 \| good
2026-04-20T05:00:00.000Z	27 \| good	3.326 \| good	14.714 \| good	28.63 \| good	0.205 \| good	1.99 \| good	0.154 \| good
2026-04-20T06:00:00.000Z	25 \| good	3.676 \| good	16 \| good	26.556 \| good	0.184 \| good	1.22 \| good	0.145 \| good
2026-04-20T07:00:00.000Z	29 \| good	4.116 \| good	17.972 \| good	31.437 \| good	0.272 \| good	1.184 \| good	0.146 \| good
2026-04-20T08:00:00.000Z	31 \| good	4.399 \| good	19 \| good	33.815 \| good	0.36 \| good	1.149 \| good	0.146 \| good
2026-04-20T09:00:00.000Z	28 \| good	4.666 \| good	20.24 \| good	30.388 \| good	0.448 \| good	1.113 \| good	0.147 \| good
2026-04-20T10:00:00.000Z	27 \| good	4.637 \| good	20.152 \| good	26.881 \| good	0.418 \| good	1.213 \| good	0.148 \| good
2026-04-20T11:00:00.000Z	23 \| good	4.085 \| good	18 \| good	24.703 \| good	0.388 \| good	1.313 \| good	0.15 \| good
2026-04-20T12:00:00.000Z	26 \| good	2.907 \| good	12 \| good	28.415 \| good	0.357 \| good	1.412 \| good	0.151 \| good
2026-04-20T13:00:00.000Z	33 \| good	1.882 \| good	7.914 \| good	35.535 \| good	0.301 \| good	1.121 \| good	0.148 \| good
2026-04-20T14:00:00.000Z	33 \| good	1.228 \| good	5 \| good	36.425 \| good	0.244 \| good	0.829 \| good	0.145 \| good
2026-04-20T15:00:00.000Z	35 \| good	1.483 \| good	6 \| good	37.581 \| good	0.188 \| good	0.537 \| good	0.142 \| good
2026-04-20T16:00:00.000Z	35 \| good	1.348 \| good	5.1 \| good	37.655 \| good	0.171 \| good	0.485 \| good	0.141 \| good
2026-04-20T17:00:00.000Z	34 \| good	1.271 \| good	5.028 \| good	37.011 \| good	0.154 \| good	0.433 \| good	0.14 \| good
2026-04-20T18:00:00.000Z	33 \| good	1.539 \| good	6.059 \| good	35.958 \| good	0.137 \| good	0.381 \| good	0.139 \| good
2026-04-20T19:00:00.000Z	31 \| good	1.682 \| good	7 \| good	33.645 \| good	0.127 \| good	0.433 \| good	0.14 \| good
2026-04-20T20:00:00.000Z	33 \| good	1.885 \| good	8 \| good	35.682 \| good	0.117 \| good	0.484 \| good	0.142 \| good
2026-04-20T21:00:00.000Z	34 \| good	2.022 \| good	8.059 \| good	36.948 \| good	0.107 \| good	0.536 \| good	0.143 \| good
2026-04-20T22:00:00.000Z	35 \| good	1.663 \| good	6.967 \| good	38.076 \| good	0.131 \| good	1.004 \| good	0.147 \| good
2026-04-20T23:00:00.000Z	33 \| good	1.608 \| good	6.785 \| good	35.628 \| good	0.156 \| good	1.473 \| good	0.151 \| 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
Laconia, New Hampshire	36 Good	1.24μg/m³ Good	5.41μg/m³ Good	39.02ppb Good	0.44ppb Good	1.16ppb Good	0.12ppm Good
Hanover, New Hampshire	35 Good	1.53μg/m³ Good	6.20μg/m³ Good	37.94ppb Good	0.28ppb Good	0.96ppb Good	0.12ppm Good
Lebanon, New Hampshire	35 Good	1.51μg/m³ Good	6.11μg/m³ Good	37.97ppb Good	0.28ppb Good	0.95ppb Good	0.12ppm Good
Claremont, New Hampshire	33 Good	2.53μg/m³ Good	9.20μg/m³ Good	36.43ppb Good	0.30ppb Good	1.05ppb Good	0.15ppm Good
Concord, New Hampshire	31 Good	3.40μg/m³ Good	11.37μg/m³ Good	33.84ppb Good	0.46ppb Good	1.21ppb Good	0.12ppm Good
Keene, New Hampshire	31 Good	2.00μg/m³ Good	8.00μg/m³ Good	34.00ppb Good	0.33ppb Good	3.03ppb Good	0.15ppm Good
Hampton, New Hampshire	27 Good	5.45μg/m³ Good	21.83μg/m³ Good	28.57ppb Good	0.56ppb Good	1.14ppb Good	0.13ppm Good
Salem, New Hampshire	27 Good	5.38μg/m³ Good	20.68μg/m³ Good	26.13ppb Good	0.50ppb Good	2.52ppb Good	0.13ppm Good
Rochester, New Hampshire	30 Good	4.54μg/m³ Good	19.06μg/m³ Good	32.17ppb Good	0.47ppb Good	1.11ppb Good	0.12ppm Good
Conway, New Hampshire	29 Good	4.42μg/m³ Good	16.80μg/m³ Good	30.85ppb Good	0.43ppb Good	0.98ppb Good	0.11ppm Good
Hooksett, New Hampshire	29 Good	3.62μg/m³ Good	12.21μg/m³ Good	31.28ppb Good	0.48ppb Good	1.32ppb Good	0.12ppm Good
Somersworth, New Hampshire	30 Good	5.15μg/m³ Good	20.13μg/m³ Good	31.75ppb Good	0.48ppb Good	1.10ppb Good	0.12ppm Good
Dover, New Hampshire	29 Good	5.11μg/m³ Good	21.16μg/m³ Good	30.69ppb Good	0.49ppb Good	1.10ppb Good	0.12ppm Good
Durham, New Hampshire	28 Good	5.01μg/m³ Good	19.00μg/m³ Good	29.74ppb Good	0.55ppb Good	1.12ppb Good	0.12ppm Good
Exeter, New Hampshire	28 Good	5.16μg/m³ Good	21.34μg/m³ Good	29.61ppb Good	0.55ppb Good	1.19ppb Good	0.13ppm Good
Milford, New Hampshire	28 Good	3.78μg/m³ Good	9.51μg/m³ Good	29.96ppb Good	0.42ppb Good	2.14ppb Good	0.13ppm Good
Pelham, New Hampshire	27 Good	5.10μg/m³ Good	14.10μg/m³ Good	27.05ppb Good	0.46ppb Good	1.50ppb Good	0.13ppm Good
Goffstown, New Hampshire	27 Good	3.41μg/m³ Good	10.04μg/m³ Good	29.03ppb Good	0.42ppb Good	1.82ppb Good	0.13ppm Good
Raymond, New Hampshire	27 Good	4.46μg/m³ Good	13.56μg/m³ Good	28.94ppb Good	0.51ppb Good	1.21ppb Good	0.13ppm Good
Amherst, New Hampshire	26 Good	3.67μg/m³ Good	13.43μg/m³ Good	27.55ppb Good	0.43ppb Good	2.01ppb Good	0.13ppm Good
Londonderry, New Hampshire	26 Good	3.79μg/m³ Good	6.74μg/m³ Good	27.83ppb Good	0.41ppb Good	1.11ppb Good	0.13ppm Good
Bedford, New Hampshire	25 Good	3.97μg/m³ Good	6.82μg/m³ Good	26.95ppb Good	0.42ppb Good	1.57ppb Good	0.13ppm Good
Derry, New Hampshire	25 Good	4.11μg/m³ Good	9.48μg/m³ Good	27.32ppb Good	0.43ppb Good	1.68ppb Good	0.13ppm Good
Hudson, New Hampshire	25 Good	4.45μg/m³ Good	11.48μg/m³ Good	26.54ppb Good	0.45ppb Good	2.72ppb Good	0.13ppm Good
Merrimack, New Hampshire	25 Good	4.14μg/m³ Good	13.93μg/m³ Good	27.08ppb Good	0.43ppb Good	1.94ppb Good	0.13ppm Good
Manchester, New Hampshire	25 Good	3.92μg/m³ Good	8.26μg/m³ Good	26.65ppb Good	0.47ppb Good	1.78ppb Good	0.13ppm Good
Nashua, New Hampshire	25 Good	4.45μg/m³ Good	11.48μg/m³ Good	26.72ppb Good	0.45ppb Good	2.52ppb Good	0.13ppm Good
Windham, New Hampshire	25 Good	4.37μg/m³ Good	11.69μg/m³ Good	26.71ppb Good	0.45ppb Good	2.50ppb Good	0.13ppm Good
Portsmouth, New Hampshire	23 Good	4.16μg/m³ Good	7.86μg/m³ Good	25.28ppb Good	0.60ppb Good	1.10ppb Good	0.12ppm Good

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

0.26ppm

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 10:00:00 on 2026-04-18.

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 02:00:00 on 2026-04-18.

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

The real-time air quality index in New Hampshire, USA is 28, currently categorized as Good.

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

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

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 3.925 μg/m³.

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

The current PM₁₀ levels in New Hampshire, USA are 12.651 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 0.126 ppm.

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

The current sulfur dioxide (SO₂) levels in New Hampshire, USA are 0.446 ppb.

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

The current ozone (O₃) levels at New Hampshire, USA is 30.123 ppm.

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

The current nitrogen dioxide (NO₂) levels at New Hampshire, USA is 1.57 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-17T02:00:00.000Z	38 \| good	6.992 \| good	37.305 \| good	31.949 \| good	0.458 \| good	6.521 \| good	0.239 \| good
2026-04-17T03:00:00.000Z	49 \| good	9.175 \| good	41.262 \| good	40.324 \| good	0.745 \| good	6.834 \| good	0.201 \| good
2026-04-17T04:00:00.000Z	44 \| good	8.391 \| good	27.704 \| good	29.239 \| good	0.461 \| good	7.552 \| good	0.179 \| good
2026-04-17T05:00:00.000Z	27 \| good	5.439 \| good	22.627 \| good	28.791 \| good	0.378 \| good	2.529 \| good	0.214 \| good
2026-04-17T06:00:00.000Z	27 \| good	5.065 \| good	16.07 \| good	25.937 \| good	0.376 \| good	2.425 \| good	0.214 \| good
2026-04-17T07:00:00.000Z	22 \| good	4.047 \| good	13.284 \| good	24.154 \| good	0.369 \| good	4.145 \| good	0.214 \| good
2026-04-17T08:00:00.000Z	22 \| good	4.4 \| good	10.24 \| good	23.393 \| good	0.386 \| good	5.74 \| good	0.214 \| good
2026-04-17T09:00:00.000Z	27 \| good	4.804 \| good	20.968 \| good	20.585 \| good	0.419 \| good	7.656 \| good	0.188 \| good
2026-04-17T10:00:00.000Z	38 \| good	7.154 \| good	15.584 \| good	21.151 \| good	0.462 \| good	8.883 \| good	0.188 \| good
2026-04-17T11:00:00.000Z	33 \| good	5.85 \| good	9.87 \| good	19.367 \| good	0.46 \| good	7.411 \| good	0.214 \| good
2026-04-17T12:00:00.000Z	33 \| good	5.741 \| good	15.628 \| good	16.565 \| good	0.422 \| good	9.509 \| good	0.278 \| good
2026-04-17T13:00:00.000Z	38 \| good	7.439 \| good	11.86 \| good	15.911 \| good	0.424 \| good	9.497 \| good	0.278 \| good
2026-04-17T14:00:00.000Z	38 \| good	6.776 \| good	14.907 \| good	14.851 \| good	0.445 \| good	3.776 \| good	0.317 \| good
2026-04-17T15:00:00.000Z	54 \| moderate	8.361 \| good	62.165 \| fine	18.424 \| good	0.415 \| good	2.695 \| good	0.304 \| good
2026-04-17T16:00:00.000Z	49 \| good	9.127 \| good	25.161 \| good	18.733 \| good	0.427 \| good	1.521 \| good	0.239 \| good
2026-04-17T17:00:00.000Z	23 \| good	3.247 \| good	11.906 \| good	24.602 \| good	0.482 \| good	1.707 \| good	0.239 \| good
2026-04-17T18:00:00.000Z	23 \| good	4.107 \| good	8.092 \| good	25.211 \| good	0.453 \| good	2.054 \| good	0.201 \| good
2026-04-17T19:00:00.000Z	26 \| good	3.619 \| good	9.36 \| good	28.379 \| good	0.203 \| good	1.524 \| good	0.165 \| good
2026-04-17T20:00:00.000Z	29 \| good	4.316 \| good	12.797 \| good	31.333 \| good	0.203 \| good	1.55 \| good	0.165 \| good
2026-04-17T21:00:00.000Z	30 \| good	2.907 \| good	7.949 \| good	31.731 \| good	0.333 \| good	1.317 \| good	0.178 \| good
2026-04-17T22:00:00.000Z	31 \| good	2.814 \| good	7.168 \| good	33.222 \| good	0.281 \| good	1.533 \| good	0.165 \| good
2026-04-17T23:00:00.000Z	31 \| good	3.42 \| good	11.772 \| good	33.553 \| good	0.282 \| good	1.522 \| good	0.152 \| good
2026-04-18T00:00:00.000Z	32 \| good	3.438 \| good	14.081 \| good	34.735 \| good	0.256 \| good	2.671 \| good	0.165 \| good
2026-04-18T01:00:00.000Z	31 \| good	3.515 \| good	12.674 \| good	33.353 \| good	0.259 \| good	6.156 \| good	0.166 \| good
2026-04-18T02:00:00.000Z	30 \| good	4.271 \| good	19.152 \| good	31.656 \| good	0.272 \| good	5.151 \| good	0.201 \| good
2026-04-18T03:00:00.000Z	27 \| good	4.842 \| good	14.086 \| good	27.682 \| good	0.321 \| good	4.755 \| good	0.24 \| good
2026-04-18T04:00:00.000Z	27 \| good	4.541 \| good	11.546 \| good	23.719 \| good	0.333 \| good	6.971 \| good	0.24 \| good
2026-04-18T05:00:00.000Z	27 \| good	5.409 \| good	15.976 \| good	14.986 \| good	0.243 \| good	6.74 \| good	0.201 \| good
2026-04-18T06:00:00.000Z	27 \| good	5.005 \| good	16.217 \| good	14.966 \| good	0.241 \| good	6.56 \| good	0.201 \| good
2026-04-18T07:00:00.000Z	22 \| good	4.132 \| good	8.991 \| good	15.533 \| good	0.25 \| good	5.873 \| good	0.253 \| good
2026-04-18T08:00:00.000Z	22 \| good	4.319 \| good	12.265 \| good	12.753 \| good	0.377 \| good	7.586 \| good	0.266 \| good
2026-04-18T09:00:00.000Z	22 \| good	4.16 \| good	18.057 \| good	10.981 \| good	0.331 \| good	6.073 \| good	0.175 \| good
2026-04-18T10:00:00.000Z	27 \| good	5.19 \| good	16.4 \| good	9.078 \| good	0.356 \| good	5.245 \| good	0.135 \| good
2026-04-18T11:00:00.000Z	22 \| good	3.903 \| good	8.08 \| good	9.615 \| good	0.412 \| good	5.511 \| good	0.135 \| good
2026-04-18T12:00:00.000Z	22 \| good	4.431 \| good	13.691 \| good	9.361 \| good	0.411 \| good	3.414 \| good	0.135 \| good
2026-04-18T13:00:00.000Z	22 \| good	4.293 \| good	13.157 \| good	10.721 \| good	0.411 \| good	2.618 \| good	0.152 \| good
2026-04-18T14:00:00.000Z	16 \| good	3.464 \| good	8.774 \| good	13.999 \| good	0.413 \| good	1.638 \| good	0.152 \| good
2026-04-18T15:00:00.000Z	22 \| good	3.539 \| good	10.126 \| good	18.963 \| good	0.455 \| good	1.152 \| good	0.15 \| good
2026-04-18T16:00:00.000Z	22 \| good	4.069 \| good	10.036 \| good	20.222 \| good	0.463 \| good	0.89 \| good	0.15 \| good
2026-04-18T17:00:00.000Z	19 \| good	3.023 \| good	6.95 \| good	21.219 \| good	0.462 \| good	1.272 \| good	0.15 \| good
2026-04-18T18:00:00.000Z	23 \| good	3.513 \| good	14.372 \| good	24.971 \| good	0.455 \| good	1.001 \| good	0.15 \| good
2026-04-18T19:00:00.000Z	30 \| good	3.057 \| good	10.711 \| good	31.805 \| good	0.407 \| good	1.191 \| good	0.15 \| good
2026-04-18T20:00:00.000Z	31 \| good	3.619 \| good	9.575 \| good	34.284 \| good	0.482 \| good	0.843 \| good	0.15 \| good
2026-04-18T21:00:00.000Z	32 \| good	4.712 \| good	15.856 \| good	34.566 \| good	0.538 \| good	0.814 \| good	0.15 \| good
2026-04-18T22:00:00.000Z	32 \| good	4.405 \| good	17.747 \| good	34.711 \| good	0.468 \| good	1.195 \| good	0.135 \| good
2026-04-18T23:00:00.000Z	31 \| good	3.398 \| good	11.373 \| good	33.835 \| good	0.463 \| good	1.208 \| good	0.118 \| good
2026-04-19T00:00:00.000Z	30 \| good	3.754 \| good	14.902 \| good	32.153 \| good	0.458 \| good	0.965 \| good	0.133 \| good
2026-04-19T01:00:00.000Z	27 \| good	3.796 \| good	9.503 \| good	29.408 \| good	0.446 \| good	1.498 \| good	0.148 \| good
2026-04-19T01:00:00.000Z	26 \| good	3.892 \| good	12.706 \| good	28.204 \| good	0.44 \| good	1.241 \| good	0.134 \| good
2026-04-19T00:00:00.000Z	27 \| good	5.491 \| good	23.606 \| good	27.453 \| good	0.202 \| good	2.449 \| good	0.165 \| good
2026-04-19T01:00:00.000Z	33 \| good	5.845 \| good	25.076 \| good	25.793 \| good	0.236 \| good	2.512 \| good	0.167 \| good
2026-04-19T02:00:00.000Z	33 \| good	6.123 \| good	27 \| good	27.016 \| good	0.271 \| good	2.575 \| good	0.168 \| good
2026-04-19T03:00:00.000Z	33 \| good	5.953 \| good	26.736 \| good	28.013 \| good	0.305 \| good	2.639 \| good	0.17 \| good
2026-04-19T04:00:00.000Z	33 \| good	5.672 \| good	24.605 \| good	33.503 \| good	0.346 \| good	2.636 \| good	0.17 \| good
2026-04-19T05:00:00.000Z	33 \| good	5.624 \| good	23.988 \| good	33.429 \| good	0.387 \| good	2.634 \| good	0.17 \| good
2026-04-19T06:00:00.000Z	33 \| good	5.78 \| good	24.873 \| good	30.585 \| good	0.429 \| good	2.631 \| good	0.17 \| good
2026-04-19T07:00:00.000Z	33 \| good	5.937 \| good	26.575 \| good	27.212 \| good	0.498 \| good	2.945 \| good	0.171 \| good
2026-04-19T08:00:00.000Z	33 \| good	5.777 \| good	25 \| good	25.409 \| good	0.567 \| good	3.258 \| good	0.173 \| good
2026-04-19T09:00:00.000Z	33 \| good	6.102 \| good	27 \| good	21.672 \| good	0.636 \| good	3.571 \| good	0.174 \| good
2026-04-19T10:00:00.000Z	33 \| good	6.238 \| good	27.503 \| good	22.288 \| good	0.643 \| good	4.208 \| good	0.181 \| good
2026-04-19T11:00:00.000Z	38 \| good	7.289 \| good	32.361 \| good	17.433 \| good	0.649 \| good	4.844 \| good	0.188 \| good
2026-04-19T12:00:00.000Z	44 \| good	8.457 \| good	37.255 \| good	17.225 \| good	0.656 \| good	5.481 \| good	0.195 \| good
2026-04-19T13:00:00.000Z	49 \| good	9.167 \| good	40.932 \| good	18.957 \| good	0.54 \| good	5.067 \| good	0.192 \| good
2026-04-19T14:00:00.000Z	52 \| moderate	9.636 \| good	42.965 \| good	22.204 \| good	0.425 \| good	4.652 \| good	0.189 \| good
2026-04-19T15:00:00.000Z	52 \| moderate	9.867 \| good	43.8 \| good	22.985 \| good	0.309 \| good	4.238 \| good	0.186 \| good
2026-04-19T16:00:00.000Z	33 \| good	6.143 \| good	26.639 \| good	27.622 \| good	0.227 \| good	3.166 \| good	0.166 \| good
2026-04-19T17:00:00.000Z	32 \| good	1.054 \| good	4.092 \| good	35.047 \| good	0.145 \| good	2.095 \| good	0.147 \| good
2026-04-19T18:00:00.000Z	31 \| good	1.774 \| good	7.088 \| good	33.476 \| good	0.062 \| good	1.023 \| good	0.127 \| good
2026-04-19T19:00:00.000Z	28 \| good	2.143 \| good	8.973 \| good	29.714 \| good	0.081 \| good	1.342 \| good	0.133 \| good
2026-04-19T20:00:00.000Z	29 \| good	2.074 \| good	8.1 \| good	30.771 \| good	0.099 \| good	1.66 \| good	0.138 \| good
2026-04-19T21:00:00.000Z	31 \| good	1.626 \| good	6.76 \| good	33.307 \| good	0.118 \| good	1.978 \| good	0.144 \| good
2026-04-19T22:00:00.000Z	31 \| good	1.189 \| good	4.9 \| good	34.241 \| good	0.125 \| good	2.035 \| good	0.147 \| good
2026-04-19T23:00:00.000Z	35 \| good	1.618 \| good	6.726 \| good	37.817 \| good	0.132 \| good	2.092 \| good	0.15 \| good
2026-04-20T00:00:00.000Z	34 \| good	2.03 \| good	8.181 \| good	37.051 \| good	0.139 \| good	2.148 \| good	0.153 \| good
2026-04-20T01:00:00.000Z	31 \| good	2.056 \| good	8.166 \| good	33.616 \| good	0.175 \| good	2.609 \| good	0.159 \| good
2026-04-20T02:00:00.000Z	28 \| good	2.244 \| good	9.166 \| good	30.03 \| good	0.211 \| good	3.069 \| good	0.166 \| good
2026-04-20T03:00:00.000Z	26 \| good	2.363 \| good	9.972 \| good	27.509 \| good	0.246 \| good	3.529 \| good	0.172 \| good
2026-04-20T04:00:00.000Z	28 \| good	2.966 \| good	12.054 \| good	30.384 \| good	0.226 \| good	2.759 \| good	0.163 \| good
2026-04-20T05:00:00.000Z	27 \| good	3.326 \| good	14.714 \| good	28.63 \| good	0.205 \| good	1.99 \| good	0.154 \| good
2026-04-20T06:00:00.000Z	25 \| good	3.676 \| good	16 \| good	26.556 \| good	0.184 \| good	1.22 \| good	0.145 \| good
2026-04-20T07:00:00.000Z	29 \| good	4.116 \| good	17.972 \| good	31.437 \| good	0.272 \| good	1.184 \| good	0.146 \| good
2026-04-20T08:00:00.000Z	31 \| good	4.399 \| good	19 \| good	33.815 \| good	0.36 \| good	1.149 \| good	0.146 \| good
2026-04-20T09:00:00.000Z	28 \| good	4.666 \| good	20.24 \| good	30.388 \| good	0.448 \| good	1.113 \| good	0.147 \| good
2026-04-20T10:00:00.000Z	27 \| good	4.637 \| good	20.152 \| good	26.881 \| good	0.418 \| good	1.213 \| good	0.148 \| good
2026-04-20T11:00:00.000Z	23 \| good	4.085 \| good	18 \| good	24.703 \| good	0.388 \| good	1.313 \| good	0.15 \| good
2026-04-20T12:00:00.000Z	26 \| good	2.907 \| good	12 \| good	28.415 \| good	0.357 \| good	1.412 \| good	0.151 \| good
2026-04-20T13:00:00.000Z	33 \| good	1.882 \| good	7.914 \| good	35.535 \| good	0.301 \| good	1.121 \| good	0.148 \| good
2026-04-20T14:00:00.000Z	33 \| good	1.228 \| good	5 \| good	36.425 \| good	0.244 \| good	0.829 \| good	0.145 \| good
2026-04-20T15:00:00.000Z	35 \| good	1.483 \| good	6 \| good	37.581 \| good	0.188 \| good	0.537 \| good	0.142 \| good
2026-04-20T16:00:00.000Z	35 \| good	1.348 \| good	5.1 \| good	37.655 \| good	0.171 \| good	0.485 \| good	0.141 \| good
2026-04-20T17:00:00.000Z	34 \| good	1.271 \| good	5.028 \| good	37.011 \| good	0.154 \| good	0.433 \| good	0.14 \| good
2026-04-20T18:00:00.000Z	33 \| good	1.539 \| good	6.059 \| good	35.958 \| good	0.137 \| good	0.381 \| good	0.139 \| good
2026-04-20T19:00:00.000Z	31 \| good	1.682 \| good	7 \| good	33.645 \| good	0.127 \| good	0.433 \| good	0.14 \| good
2026-04-20T20:00:00.000Z	33 \| good	1.885 \| good	8 \| good	35.682 \| good	0.117 \| good	0.484 \| good	0.142 \| good
2026-04-20T21:00:00.000Z	34 \| good	2.022 \| good	8.059 \| good	36.948 \| good	0.107 \| good	0.536 \| good	0.143 \| good
2026-04-20T22:00:00.000Z	35 \| good	1.663 \| good	6.967 \| good	38.076 \| good	0.131 \| good	1.004 \| good	0.147 \| good
2026-04-20T23:00:00.000Z	33 \| good	1.608 \| good	6.785 \| good	35.628 \| good	0.156 \| good	1.473 \| good	0.151 \| good

Real-time air quality index in New Hampshire, USA today

Common 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?