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

The current PM10 levels in Londonderry, New Hampshire are 10.731 μg/m3.

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

The current sulfur dioxide (SO2) levels in Londonderry, New Hampshire are 0.695 ppb.

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

The current ozone (O3) levels at Londonderry, New Hampshire is 37.697 ppm.

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

The current nitrogen dioxide (NO2) levels at Londonderry, New Hampshire is 4.534 ppb.

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

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

The measured PM2.5 levels in Londonderry, New Hampshire at present are 4.51 μg/m3.

Stay updated with real-time air quality in Londonderry, 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

Londonderry, New Hampshire

Last updated: ... (Local time)

Common air pollutants in Londonderry, New Hampshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.51 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

10.73 μg/m³

155

255

425

605+

Ozone (O₃)

37.70 ppb

201

201+

Sulfur Dioxide (SO₂)

0.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.53 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Londonderry, New Hampshire

Get Live Pollen Counts

Londonderry, New Hampshire

Scroll To Air Quality Map

Track live Londonderry, New Hampshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	26 \| good	1.956 \| good	6.636 \| good	28.308 \| good	0.575 \| good	3.378 \| good	0.126 \| good
2026-05-12T14:00:00.000Z	28 \| good	1.938 \| good	7.584 \| good	29.625 \| good	0.649 \| good	1.415 \| good	0.117 \| good
2026-05-12T15:00:00.000Z	29 \| good	1.824 \| good	6.648 \| good	30.843 \| good	0.555 \| good	1.708 \| good	0.117 \| good
2026-05-12T16:00:00.000Z	31 \| good	1.491 \| good	5.393 \| good	33.221 \| good	0.544 \| good	1.514 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	31 \| good	1.426 \| good	4.749 \| good	34.34 \| good	0.545 \| good	1.602 \| good	0.11 \| good
2026-05-12T18:00:00.000Z	33 \| good	1.412 \| good	5.173 \| good	35.664 \| good	0.54 \| good	1.565 \| good	0.117 \| good
2026-05-12T19:00:00.000Z	33 \| good	1.354 \| good	4.856 \| good	36.401 \| good	0.541 \| good	1.554 \| good	0.117 \| good
2026-05-12T20:00:00.000Z	35 \| good	1.184 \| good	4.146 \| good	37.704 \| good	0.538 \| good	1.375 \| good	0.117 \| good
2026-05-12T21:00:00.000Z	35 \| good	1.117 \| good	3.878 \| good	38.332 \| good	0.539 \| good	1.356 \| good	0.117 \| good
2026-05-12T22:00:00.000Z	36 \| good	1.062 \| good	3.836 \| good	38.587 \| good	0.533 \| good	1.553 \| good	0.117 \| good
2026-05-12T23:00:00.000Z	36 \| good	1.206 \| good	4.184 \| good	38.551 \| good	0.54 \| good	1.42 \| good	0.117 \| good
2026-05-13T00:00:00.000Z	37 \| good	1.168 \| good	3.946 \| good	39.546 \| good	0.54 \| good	1.303 \| good	0.126 \| good
2026-05-13T01:00:00.000Z	35 \| good	1.279 \| good	4.144 \| good	37.59 \| good	0.551 \| good	2.132 \| good	0.126 \| good
2026-05-13T02:00:00.000Z	31 \| good	1.7 \| good	6.85 \| good	34.335 \| good	0.559 \| good	5.04 \| good	0.126 \| good
2026-05-13T03:00:00.000Z	22 \| good	4.403 \| good	18.877 \| good	22.17 \| good	0.487 \| good	10.969 \| good	0.195 \| good
2026-05-13T04:00:00.000Z	24 \| good	2.272 \| good	7.31 \| good	26.375 \| good	0.525 \| good	6.421 \| good	0.15 \| good
2026-05-13T05:00:00.000Z	23 \| good	2.764 \| good	9.77 \| good	24.536 \| good	0.533 \| good	6.071 \| good	0.143 \| good
2026-05-13T06:00:00.000Z	19 \| good	2.77 \| good	8.012 \| good	20.598 \| good	0.46 \| good	6.192 \| good	0.143 \| good
2026-05-13T07:00:00.000Z	19 \| good	2.947 \| good	9.122 \| good	20.597 \| good	0.427 \| good	3.727 \| good	0.1 \| good
2026-05-13T08:00:00.000Z	19 \| good	2.752 \| good	8.766 \| good	19.581 \| good	0.525 \| good	7.934 \| good	0.117 \| good
2026-05-13T09:00:00.000Z	18 \| good	2.96 \| good	9.967 \| good	18.714 \| good	0.52 \| good	8.631 \| good	0.117 \| good
2026-05-13T10:00:00.000Z	19 \| good	2.893 \| good	10.402 \| good	19.911 \| good	0.541 \| good	8.947 \| good	0.126 \| good
2026-05-13T11:00:00.000Z	17 \| good	3.181 \| good	10.509 \| good	18.103 \| good	0.533 \| good	9.241 \| good	0.136 \| good
2026-05-13T12:00:00.000Z	18 \| good	3.242 \| good	11.181 \| good	18.583 \| good	0.639 \| good	9.149 \| good	0.203 \| good
2026-05-13T13:00:00.000Z	19 \| good	3.179 \| good	11.121 \| good	20.197 \| good	0.639 \| good	9.135 \| good	0.203 \| good
2026-05-13T14:00:00.000Z	22 \| good	3.686 \| good	12.713 \| good	23.244 \| good	0.628 \| good	8.876 \| good	0.21 \| good
2026-05-13T15:00:00.000Z	22 \| good	3.922 \| good	13.108 \| good	23.262 \| good	0.632 \| good	11.693 \| good	0.2 \| good
2026-05-13T16:00:00.000Z	49 \| good	9.097 \| good	40.681 \| good	24.786 \| good	0.44 \| good	7.323 \| good	0.184 \| good
2026-05-13T17:00:00.000Z	27 \| good	4.558 \| good	14.779 \| good	24.858 \| good	0.581 \| good	11.662 \| good	0.21 \| good
2026-05-13T18:00:00.000Z	27 \| good	5.166 \| good	16.309 \| good	25.61 \| good	0.626 \| good	11.986 \| good	0.219 \| good
2026-05-13T19:00:00.000Z	27 \| good	5.289 \| good	15.927 \| good	26.212 \| good	0.618 \| good	9.713 \| good	0.219 \| good
2026-05-13T20:00:00.000Z	36 \| good	5.583 \| good	17.649 \| good	38.529 \| good	0.625 \| good	6.417 \| good	0.133 \| good
2026-05-13T21:00:00.000Z	35 \| good	5.322 \| good	16.79 \| good	38.468 \| good	0.62 \| good	4.695 \| good	0.124 \| good
2026-05-13T22:00:00.000Z	36 \| good	5.171 \| good	17.774 \| good	38.857 \| good	0.693 \| good	6.289 \| good	0.124 \| good
2026-05-13T23:00:00.000Z	33 \| good	5.259 \| good	17.929 \| good	36.421 \| good	0.618 \| good	6.413 \| good	0.2 \| good
2026-05-14T00:00:00.000Z	33 \| good	5.262 \| good	18.28 \| good	36.431 \| good	0.683 \| good	6.755 \| good	0.2 \| good
2026-05-14T01:00:00.000Z	32 \| good	5.288 \| good	17.809 \| good	34.556 \| good	0.615 \| good	6.054 \| good	0.203 \| good
2026-05-14T02:00:00.000Z	33 \| good	5.297 \| good	17.227 \| good	35.778 \| good	0.604 \| good	6.105 \| good	0.203 \| good
2026-05-14T03:00:00.000Z	35 \| good	5.242 \| good	17.52 \| good	37.847 \| good	0.579 \| good	4.75 \| good	0.146 \| good
2026-05-14T04:00:00.000Z	35 \| good	5.271 \| good	16.429 \| good	38.129 \| good	0.586 \| good	4.768 \| good	0.146 \| good
2026-05-14T05:00:00.000Z	36 \| good	5.215 \| good	17.29 \| good	39.251 \| good	0.586 \| good	5.049 \| good	0.133 \| good
2026-05-14T06:00:00.000Z	37 \| good	5.16 \| good	17.446 \| good	39.647 \| good	0.591 \| good	5.737 \| good	0.126 \| good
2026-05-14T07:00:00.000Z	37 \| good	5.165 \| good	17.349 \| good	39.721 \| good	0.591 \| good	5.729 \| good	0.126 \| good
2026-05-14T08:00:00.000Z	37 \| good	4.965 \| good	16.069 \| good	39.554 \| good	0.655 \| good	5.244 \| good	0.129 \| good
2026-05-14T09:00:00.000Z	39 \| good	4.836 \| good	16.136 \| good	41.972 \| good	0.591 \| good	7.831 \| good	0.117 \| good
2026-05-14T10:00:00.000Z	37 \| good	4.681 \| good	15.677 \| good	40.394 \| good	0.591 \| good	9.386 \| good	0.126 \| good
2026-05-14T11:00:00.000Z	35 \| good	4.614 \| good	14.805 \| good	37.941 \| good	0.673 \| good	9.962 \| good	0.123 \| good
2026-05-14T12:00:00.000Z	34 \| good	4.559 \| good	15.415 \| good	36.604 \| good	0.663 \| good	10.004 \| good	0.133 \| good
2026-05-14T12:00:00.000Z	35 \| good	4.51 \| good	10.731 \| good	37.697 \| good	0.695 \| good	4.534 \| good	0.105 \| good
2026-05-14T13:00:00.000Z	33 \| good	4.433 \| good	18.984 \| good	35.764 \| good	0.242 \| good	2.97 \| good	0.142 \| good
2026-05-14T14:00:00.000Z	35 \| good	4.115 \| good	17.896 \| good	37.704 \| good	0.229 \| good	3.004 \| good	0.142 \| good
2026-05-14T15:00:00.000Z	36 \| good	3.568 \| good	15.769 \| good	38.746 \| good	0.223 \| good	3.437 \| good	0.145 \| good
2026-05-14T16:00:00.000Z	39 \| good	3.165 \| good	13.841 \| good	41.912 \| good	0.224 \| good	3.801 \| good	0.148 \| good
2026-05-14T17:00:00.000Z	41 \| good	2.978 \| good	12.152 \| good	43.763 \| good	0.213 \| good	3.09 \| good	0.146 \| good
2026-05-14T18:00:00.000Z	36 \| good	3.759 \| good	16.128 \| good	38.848 \| good	0.206 \| good	2.919 \| good	0.144 \| good
2026-05-14T19:00:00.000Z	30 \| good	4.25 \| good	18.864 \| good	32.417 \| good	0.203 \| good	3.03 \| good	0.146 \| good
2026-05-14T20:00:00.000Z	28 \| good	4.013 \| good	17.87 \| good	29.516 \| good	0.197 \| good	3.23 \| good	0.148 \| good
2026-05-14T21:00:00.000Z	29 \| good	3.811 \| good	16.737 \| good	30.751 \| good	0.185 \| good	3.666 \| good	0.153 \| good
2026-05-14T22:00:00.000Z	29 \| good	4.766 \| good	20.719 \| good	30.899 \| good	0.171 \| good	4.324 \| good	0.16 \| good
2026-05-14T23:00:00.000Z	31 \| good	3.943 \| good	17.513 \| good	32.919 \| good	0.165 \| good	4.527 \| good	0.163 \| good
2026-05-15T00:00:00.000Z	35 \| good	3.396 \| good	14.712 \| good	38.488 \| good	0.169 \| good	4.572 \| good	0.16 \| good
2026-05-15T01:00:00.000Z	32 \| good	3.55 \| good	15.601 \| good	34.99 \| good	0.181 \| good	4.609 \| good	0.158 \| good
2026-05-15T02:00:00.000Z	30 \| good	4.432 \| good	19.481 \| good	32.046 \| good	0.18 \| good	4.255 \| good	0.154 \| good
2026-05-15T03:00:00.000Z	28 \| good	4.528 \| good	19.537 \| good	29.927 \| good	0.169 \| good	3.522 \| good	0.147 \| good
2026-05-15T04:00:00.000Z	29 \| good	4.58 \| good	19.74 \| good	30.71 \| good	0.15 \| good	2.811 \| good	0.141 \| good
2026-05-15T05:00:00.000Z	30 \| good	4.296 \| good	18.697 \| good	31.912 \| good	0.134 \| good	2.036 \| good	0.135 \| good
2026-05-15T06:00:00.000Z	31 \| good	4.105 \| good	17.876 \| good	34.274 \| good	0.124 \| good	1.54 \| good	0.129 \| good
2026-05-15T07:00:00.000Z	35 \| good	4.271 \| good	18.765 \| good	37.637 \| good	0.121 \| good	1.295 \| good	0.125 \| good
2026-05-15T08:00:00.000Z	35 \| good	3.827 \| good	16.957 \| good	37.594 \| good	0.121 \| good	1.221 \| good	0.124 \| good
2026-05-15T09:00:00.000Z	33 \| good	3.93 \| good	16.938 \| good	36.158 \| good	0.12 \| good	1.2 \| good	0.123 \| good
2026-05-15T10:00:00.000Z	32 \| good	3.986 \| good	17.756 \| good	35.238 \| good	0.119 \| good	1.262 \| good	0.123 \| good
2026-05-15T11:00:00.000Z	32 \| good	3.249 \| good	13.709 \| good	35.279 \| good	0.114 \| good	1.471 \| good	0.124 \| good
2026-05-15T12:00:00.000Z	32 \| good	3.272 \| good	13.96 \| good	35.295 \| good	0.105 \| good	1.787 \| good	0.126 \| good
2026-05-15T13:00:00.000Z	31 \| good	3.152 \| good	13.607 \| good	33.023 \| good	0.102 \| good	1.916 \| good	0.129 \| good
2026-05-15T14:00:00.000Z	31 \| good	3.288 \| good	14.444 \| good	32.894 \| good	0.106 \| good	1.797 \| good	0.128 \| good
2026-05-15T15:00:00.000Z	31 \| good	3.573 \| good	15.77 \| good	33.383 \| good	0.113 \| good	1.637 \| good	0.127 \| good
2026-05-15T16:00:00.000Z	32 \| good	3.821 \| good	16.817 \| good	35.241 \| good	0.12 \| good	1.601 \| good	0.128 \| good
2026-05-15T17:00:00.000Z	33 \| good	3.903 \| good	16.885 \| good	36.495 \| good	0.135 \| good	1.652 \| good	0.129 \| good
2026-05-15T18:00:00.000Z	34 \| good	3.591 \| good	15.787 \| good	36.864 \| good	0.155 \| good	1.844 \| good	0.132 \| good
2026-05-15T19:00:00.000Z	34 \| good	3.288 \| good	14.415 \| good	37.277 \| good	0.173 \| good	1.84 \| good	0.134 \| good
2026-05-15T20:00:00.000Z	35 \| good	3.027 \| good	12.114 \| good	37.756 \| good	0.186 \| good	2.352 \| good	0.139 \| good
2026-05-15T21:00:00.000Z	37 \| good	2.711 \| good	11.075 \| good	39.594 \| good	0.193 \| good	2.954 \| good	0.146 \| good
2026-05-15T22:00:00.000Z	38 \| good	2.165 \| good	8.849 \| good	41.254 \| good	0.193 \| good	3.675 \| good	0.155 \| good
2026-05-15T23:00:00.000Z	36 \| good	3.195 \| good	13.944 \| good	39.428 \| good	0.194 \| good	3.996 \| good	0.158 \| good
2026-05-16T00:00:00.000Z	29 \| good	3.761 \| good	16.182 \| good	31.371 \| good	0.223 \| good	5.289 \| good	0.166 \| good
2026-05-16T01:00:00.000Z	24 \| good	4.128 \| good	18.071 \| good	26.372 \| good	0.237 \| good	5.359 \| good	0.162 \| good
2026-05-16T02:00:00.000Z	27 \| good	4.507 \| good	19.901 \| good	24.343 \| good	0.248 \| good	5.61 \| good	0.163 \| good
2026-05-16T03:00:00.000Z	27 \| good	4.626 \| good	20.097 \| good	23.068 \| good	0.247 \| good	5.839 \| good	0.164 \| good
2026-05-16T04:00:00.000Z	27 \| good	4.591 \| good	20.134 \| good	23.611 \| good	0.215 \| good	5.103 \| good	0.158 \| good
2026-05-16T05:00:00.000Z	22 \| good	3.663 \| good	15.934 \| good	24.172 \| good	0.172 \| good	3.889 \| good	0.148 \| good
2026-05-16T06:00:00.000Z	32 \| good	1.962 \| good	2.109 \| good	34.933 \| good	0.144 \| good	3.05 \| good	0.141 \| good
2026-05-16T07:00:00.000Z	21 \| good	2.513 \| good	10.127 \| good	23.427 \| good	0.129 \| good	2.564 \| good	0.136 \| good
2026-05-16T08:00:00.000Z	21 \| good	2.426 \| good	10.069 \| good	23.483 \| good	0.125 \| good	2.258 \| good	0.134 \| good
2026-05-16T09:00:00.000Z	22 \| good	3.243 \| good	13.901 \| good	24.419 \| good	0.13 \| good	2.212 \| good	0.135 \| good
2026-05-16T10:00:00.000Z	22 \| good	2.796 \| good	11.856 \| good	23.675 \| good	0.136 \| good	2.281 \| good	0.138 \| good
2026-05-16T11:00:00.000Z	25 \| good	3.211 \| good	13.906 \| good	26.724 \| good	0.147 \| good	2.169 \| good	0.144 \| good
2026-05-16T12:00:00.000Z	29 \| good	2.677 \| good	2.705 \| good	30.68 \| good	0.173 \| good	2.054 \| good	0.151 \| good

Londonderry

Empower business decisions with accurate air quality data

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

0.14ppm

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

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Frequently asked questions

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

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

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

The worst air quality in Londonderry, New Hampshire was recorded at 04:00:00 on 2026-05-13.

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

The best air quality in Londonderry, New Hampshire was recorded at 12:00:00 on 2026-05-13.

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

The real-time air quality index in Londonderry, New Hampshire is 35, currently categorized as Good.

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

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

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

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

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

The measured PM_2.5 levels in Londonderry, New Hampshire at present are 4.51 μg/m³.

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

The current PM₁₀ levels in Londonderry, New Hampshire are 10.731 μg/m³.

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

The current carbon monoxide (CO) level in Londonderry, New Hampshire is 0.105 ppm.

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

The current sulfur dioxide (SO₂) levels in Londonderry, New Hampshire are 0.695 ppb.

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

The current ozone (O₃) levels at Londonderry, New Hampshire is 37.697 ppm.

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

The current nitrogen dioxide (NO₂) levels at Londonderry, New Hampshire is 4.534 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-05-12T13:00:00.000Z	26 \| good	1.956 \| good	6.636 \| good	28.308 \| good	0.575 \| good	3.378 \| good	0.126 \| good
2026-05-12T14:00:00.000Z	28 \| good	1.938 \| good	7.584 \| good	29.625 \| good	0.649 \| good	1.415 \| good	0.117 \| good
2026-05-12T15:00:00.000Z	29 \| good	1.824 \| good	6.648 \| good	30.843 \| good	0.555 \| good	1.708 \| good	0.117 \| good
2026-05-12T16:00:00.000Z	31 \| good	1.491 \| good	5.393 \| good	33.221 \| good	0.544 \| good	1.514 \| good	0.117 \| good
2026-05-12T17:00:00.000Z	31 \| good	1.426 \| good	4.749 \| good	34.34 \| good	0.545 \| good	1.602 \| good	0.11 \| good
2026-05-12T18:00:00.000Z	33 \| good	1.412 \| good	5.173 \| good	35.664 \| good	0.54 \| good	1.565 \| good	0.117 \| good
2026-05-12T19:00:00.000Z	33 \| good	1.354 \| good	4.856 \| good	36.401 \| good	0.541 \| good	1.554 \| good	0.117 \| good
2026-05-12T20:00:00.000Z	35 \| good	1.184 \| good	4.146 \| good	37.704 \| good	0.538 \| good	1.375 \| good	0.117 \| good
2026-05-12T21:00:00.000Z	35 \| good	1.117 \| good	3.878 \| good	38.332 \| good	0.539 \| good	1.356 \| good	0.117 \| good
2026-05-12T22:00:00.000Z	36 \| good	1.062 \| good	3.836 \| good	38.587 \| good	0.533 \| good	1.553 \| good	0.117 \| good
2026-05-12T23:00:00.000Z	36 \| good	1.206 \| good	4.184 \| good	38.551 \| good	0.54 \| good	1.42 \| good	0.117 \| good
2026-05-13T00:00:00.000Z	37 \| good	1.168 \| good	3.946 \| good	39.546 \| good	0.54 \| good	1.303 \| good	0.126 \| good
2026-05-13T01:00:00.000Z	35 \| good	1.279 \| good	4.144 \| good	37.59 \| good	0.551 \| good	2.132 \| good	0.126 \| good
2026-05-13T02:00:00.000Z	31 \| good	1.7 \| good	6.85 \| good	34.335 \| good	0.559 \| good	5.04 \| good	0.126 \| good
2026-05-13T03:00:00.000Z	22 \| good	4.403 \| good	18.877 \| good	22.17 \| good	0.487 \| good	10.969 \| good	0.195 \| good
2026-05-13T04:00:00.000Z	24 \| good	2.272 \| good	7.31 \| good	26.375 \| good	0.525 \| good	6.421 \| good	0.15 \| good
2026-05-13T05:00:00.000Z	23 \| good	2.764 \| good	9.77 \| good	24.536 \| good	0.533 \| good	6.071 \| good	0.143 \| good
2026-05-13T06:00:00.000Z	19 \| good	2.77 \| good	8.012 \| good	20.598 \| good	0.46 \| good	6.192 \| good	0.143 \| good
2026-05-13T07:00:00.000Z	19 \| good	2.947 \| good	9.122 \| good	20.597 \| good	0.427 \| good	3.727 \| good	0.1 \| good
2026-05-13T08:00:00.000Z	19 \| good	2.752 \| good	8.766 \| good	19.581 \| good	0.525 \| good	7.934 \| good	0.117 \| good
2026-05-13T09:00:00.000Z	18 \| good	2.96 \| good	9.967 \| good	18.714 \| good	0.52 \| good	8.631 \| good	0.117 \| good
2026-05-13T10:00:00.000Z	19 \| good	2.893 \| good	10.402 \| good	19.911 \| good	0.541 \| good	8.947 \| good	0.126 \| good
2026-05-13T11:00:00.000Z	17 \| good	3.181 \| good	10.509 \| good	18.103 \| good	0.533 \| good	9.241 \| good	0.136 \| good
2026-05-13T12:00:00.000Z	18 \| good	3.242 \| good	11.181 \| good	18.583 \| good	0.639 \| good	9.149 \| good	0.203 \| good
2026-05-13T13:00:00.000Z	19 \| good	3.179 \| good	11.121 \| good	20.197 \| good	0.639 \| good	9.135 \| good	0.203 \| good
2026-05-13T14:00:00.000Z	22 \| good	3.686 \| good	12.713 \| good	23.244 \| good	0.628 \| good	8.876 \| good	0.21 \| good
2026-05-13T15:00:00.000Z	22 \| good	3.922 \| good	13.108 \| good	23.262 \| good	0.632 \| good	11.693 \| good	0.2 \| good
2026-05-13T16:00:00.000Z	49 \| good	9.097 \| good	40.681 \| good	24.786 \| good	0.44 \| good	7.323 \| good	0.184 \| good
2026-05-13T17:00:00.000Z	27 \| good	4.558 \| good	14.779 \| good	24.858 \| good	0.581 \| good	11.662 \| good	0.21 \| good
2026-05-13T18:00:00.000Z	27 \| good	5.166 \| good	16.309 \| good	25.61 \| good	0.626 \| good	11.986 \| good	0.219 \| good
2026-05-13T19:00:00.000Z	27 \| good	5.289 \| good	15.927 \| good	26.212 \| good	0.618 \| good	9.713 \| good	0.219 \| good
2026-05-13T20:00:00.000Z	36 \| good	5.583 \| good	17.649 \| good	38.529 \| good	0.625 \| good	6.417 \| good	0.133 \| good
2026-05-13T21:00:00.000Z	35 \| good	5.322 \| good	16.79 \| good	38.468 \| good	0.62 \| good	4.695 \| good	0.124 \| good
2026-05-13T22:00:00.000Z	36 \| good	5.171 \| good	17.774 \| good	38.857 \| good	0.693 \| good	6.289 \| good	0.124 \| good
2026-05-13T23:00:00.000Z	33 \| good	5.259 \| good	17.929 \| good	36.421 \| good	0.618 \| good	6.413 \| good	0.2 \| good
2026-05-14T00:00:00.000Z	33 \| good	5.262 \| good	18.28 \| good	36.431 \| good	0.683 \| good	6.755 \| good	0.2 \| good
2026-05-14T01:00:00.000Z	32 \| good	5.288 \| good	17.809 \| good	34.556 \| good	0.615 \| good	6.054 \| good	0.203 \| good
2026-05-14T02:00:00.000Z	33 \| good	5.297 \| good	17.227 \| good	35.778 \| good	0.604 \| good	6.105 \| good	0.203 \| good
2026-05-14T03:00:00.000Z	35 \| good	5.242 \| good	17.52 \| good	37.847 \| good	0.579 \| good	4.75 \| good	0.146 \| good
2026-05-14T04:00:00.000Z	35 \| good	5.271 \| good	16.429 \| good	38.129 \| good	0.586 \| good	4.768 \| good	0.146 \| good
2026-05-14T05:00:00.000Z	36 \| good	5.215 \| good	17.29 \| good	39.251 \| good	0.586 \| good	5.049 \| good	0.133 \| good
2026-05-14T06:00:00.000Z	37 \| good	5.16 \| good	17.446 \| good	39.647 \| good	0.591 \| good	5.737 \| good	0.126 \| good
2026-05-14T07:00:00.000Z	37 \| good	5.165 \| good	17.349 \| good	39.721 \| good	0.591 \| good	5.729 \| good	0.126 \| good
2026-05-14T08:00:00.000Z	37 \| good	4.965 \| good	16.069 \| good	39.554 \| good	0.655 \| good	5.244 \| good	0.129 \| good
2026-05-14T09:00:00.000Z	39 \| good	4.836 \| good	16.136 \| good	41.972 \| good	0.591 \| good	7.831 \| good	0.117 \| good
2026-05-14T10:00:00.000Z	37 \| good	4.681 \| good	15.677 \| good	40.394 \| good	0.591 \| good	9.386 \| good	0.126 \| good
2026-05-14T11:00:00.000Z	35 \| good	4.614 \| good	14.805 \| good	37.941 \| good	0.673 \| good	9.962 \| good	0.123 \| good
2026-05-14T12:00:00.000Z	34 \| good	4.559 \| good	15.415 \| good	36.604 \| good	0.663 \| good	10.004 \| good	0.133 \| good
2026-05-14T12:00:00.000Z	35 \| good	4.51 \| good	10.731 \| good	37.697 \| good	0.695 \| good	4.534 \| good	0.105 \| good
2026-05-14T13:00:00.000Z	33 \| good	4.433 \| good	18.984 \| good	35.764 \| good	0.242 \| good	2.97 \| good	0.142 \| good
2026-05-14T14:00:00.000Z	35 \| good	4.115 \| good	17.896 \| good	37.704 \| good	0.229 \| good	3.004 \| good	0.142 \| good
2026-05-14T15:00:00.000Z	36 \| good	3.568 \| good	15.769 \| good	38.746 \| good	0.223 \| good	3.437 \| good	0.145 \| good
2026-05-14T16:00:00.000Z	39 \| good	3.165 \| good	13.841 \| good	41.912 \| good	0.224 \| good	3.801 \| good	0.148 \| good
2026-05-14T17:00:00.000Z	41 \| good	2.978 \| good	12.152 \| good	43.763 \| good	0.213 \| good	3.09 \| good	0.146 \| good
2026-05-14T18:00:00.000Z	36 \| good	3.759 \| good	16.128 \| good	38.848 \| good	0.206 \| good	2.919 \| good	0.144 \| good
2026-05-14T19:00:00.000Z	30 \| good	4.25 \| good	18.864 \| good	32.417 \| good	0.203 \| good	3.03 \| good	0.146 \| good
2026-05-14T20:00:00.000Z	28 \| good	4.013 \| good	17.87 \| good	29.516 \| good	0.197 \| good	3.23 \| good	0.148 \| good
2026-05-14T21:00:00.000Z	29 \| good	3.811 \| good	16.737 \| good	30.751 \| good	0.185 \| good	3.666 \| good	0.153 \| good
2026-05-14T22:00:00.000Z	29 \| good	4.766 \| good	20.719 \| good	30.899 \| good	0.171 \| good	4.324 \| good	0.16 \| good
2026-05-14T23:00:00.000Z	31 \| good	3.943 \| good	17.513 \| good	32.919 \| good	0.165 \| good	4.527 \| good	0.163 \| good
2026-05-15T00:00:00.000Z	35 \| good	3.396 \| good	14.712 \| good	38.488 \| good	0.169 \| good	4.572 \| good	0.16 \| good
2026-05-15T01:00:00.000Z	32 \| good	3.55 \| good	15.601 \| good	34.99 \| good	0.181 \| good	4.609 \| good	0.158 \| good
2026-05-15T02:00:00.000Z	30 \| good	4.432 \| good	19.481 \| good	32.046 \| good	0.18 \| good	4.255 \| good	0.154 \| good
2026-05-15T03:00:00.000Z	28 \| good	4.528 \| good	19.537 \| good	29.927 \| good	0.169 \| good	3.522 \| good	0.147 \| good
2026-05-15T04:00:00.000Z	29 \| good	4.58 \| good	19.74 \| good	30.71 \| good	0.15 \| good	2.811 \| good	0.141 \| good
2026-05-15T05:00:00.000Z	30 \| good	4.296 \| good	18.697 \| good	31.912 \| good	0.134 \| good	2.036 \| good	0.135 \| good
2026-05-15T06:00:00.000Z	31 \| good	4.105 \| good	17.876 \| good	34.274 \| good	0.124 \| good	1.54 \| good	0.129 \| good
2026-05-15T07:00:00.000Z	35 \| good	4.271 \| good	18.765 \| good	37.637 \| good	0.121 \| good	1.295 \| good	0.125 \| good
2026-05-15T08:00:00.000Z	35 \| good	3.827 \| good	16.957 \| good	37.594 \| good	0.121 \| good	1.221 \| good	0.124 \| good
2026-05-15T09:00:00.000Z	33 \| good	3.93 \| good	16.938 \| good	36.158 \| good	0.12 \| good	1.2 \| good	0.123 \| good
2026-05-15T10:00:00.000Z	32 \| good	3.986 \| good	17.756 \| good	35.238 \| good	0.119 \| good	1.262 \| good	0.123 \| good
2026-05-15T11:00:00.000Z	32 \| good	3.249 \| good	13.709 \| good	35.279 \| good	0.114 \| good	1.471 \| good	0.124 \| good
2026-05-15T12:00:00.000Z	32 \| good	3.272 \| good	13.96 \| good	35.295 \| good	0.105 \| good	1.787 \| good	0.126 \| good
2026-05-15T13:00:00.000Z	31 \| good	3.152 \| good	13.607 \| good	33.023 \| good	0.102 \| good	1.916 \| good	0.129 \| good
2026-05-15T14:00:00.000Z	31 \| good	3.288 \| good	14.444 \| good	32.894 \| good	0.106 \| good	1.797 \| good	0.128 \| good
2026-05-15T15:00:00.000Z	31 \| good	3.573 \| good	15.77 \| good	33.383 \| good	0.113 \| good	1.637 \| good	0.127 \| good
2026-05-15T16:00:00.000Z	32 \| good	3.821 \| good	16.817 \| good	35.241 \| good	0.12 \| good	1.601 \| good	0.128 \| good
2026-05-15T17:00:00.000Z	33 \| good	3.903 \| good	16.885 \| good	36.495 \| good	0.135 \| good	1.652 \| good	0.129 \| good
2026-05-15T18:00:00.000Z	34 \| good	3.591 \| good	15.787 \| good	36.864 \| good	0.155 \| good	1.844 \| good	0.132 \| good
2026-05-15T19:00:00.000Z	34 \| good	3.288 \| good	14.415 \| good	37.277 \| good	0.173 \| good	1.84 \| good	0.134 \| good
2026-05-15T20:00:00.000Z	35 \| good	3.027 \| good	12.114 \| good	37.756 \| good	0.186 \| good	2.352 \| good	0.139 \| good
2026-05-15T21:00:00.000Z	37 \| good	2.711 \| good	11.075 \| good	39.594 \| good	0.193 \| good	2.954 \| good	0.146 \| good
2026-05-15T22:00:00.000Z	38 \| good	2.165 \| good	8.849 \| good	41.254 \| good	0.193 \| good	3.675 \| good	0.155 \| good
2026-05-15T23:00:00.000Z	36 \| good	3.195 \| good	13.944 \| good	39.428 \| good	0.194 \| good	3.996 \| good	0.158 \| good
2026-05-16T00:00:00.000Z	29 \| good	3.761 \| good	16.182 \| good	31.371 \| good	0.223 \| good	5.289 \| good	0.166 \| good
2026-05-16T01:00:00.000Z	24 \| good	4.128 \| good	18.071 \| good	26.372 \| good	0.237 \| good	5.359 \| good	0.162 \| good
2026-05-16T02:00:00.000Z	27 \| good	4.507 \| good	19.901 \| good	24.343 \| good	0.248 \| good	5.61 \| good	0.163 \| good
2026-05-16T03:00:00.000Z	27 \| good	4.626 \| good	20.097 \| good	23.068 \| good	0.247 \| good	5.839 \| good	0.164 \| good
2026-05-16T04:00:00.000Z	27 \| good	4.591 \| good	20.134 \| good	23.611 \| good	0.215 \| good	5.103 \| good	0.158 \| good
2026-05-16T05:00:00.000Z	22 \| good	3.663 \| good	15.934 \| good	24.172 \| good	0.172 \| good	3.889 \| good	0.148 \| good
2026-05-16T06:00:00.000Z	32 \| good	1.962 \| good	2.109 \| good	34.933 \| good	0.144 \| good	3.05 \| good	0.141 \| good
2026-05-16T07:00:00.000Z	21 \| good	2.513 \| good	10.127 \| good	23.427 \| good	0.129 \| good	2.564 \| good	0.136 \| good
2026-05-16T08:00:00.000Z	21 \| good	2.426 \| good	10.069 \| good	23.483 \| good	0.125 \| good	2.258 \| good	0.134 \| good
2026-05-16T09:00:00.000Z	22 \| good	3.243 \| good	13.901 \| good	24.419 \| good	0.13 \| good	2.212 \| good	0.135 \| good
2026-05-16T10:00:00.000Z	22 \| good	2.796 \| good	11.856 \| good	23.675 \| good	0.136 \| good	2.281 \| good	0.138 \| good
2026-05-16T11:00:00.000Z	25 \| good	3.211 \| good	13.906 \| good	26.724 \| good	0.147 \| good	2.169 \| good	0.144 \| good
2026-05-16T12:00:00.000Z	29 \| good	2.677 \| good	2.705 \| good	30.68 \| good	0.173 \| good	2.054 \| good	0.151 \| good

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

Common air pollutants in Londonderry, New Hampshire

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Londonderry, New Hampshire air quality forecast and history

Empower business decisions with accurate air quality data

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

Air quality in nearby cities

Derry, New Hampshire

Windham, New Hampshire

Merrimack, New Hampshire

Hudson, New Hampshire

Nashua, New Hampshire

Pelham, New Hampshire

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 Londonderry, New Hampshire updated?

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

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

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

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

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

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

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

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

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

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

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

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 Londonderry, New Hampshire?

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

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

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

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