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

The current PM10 concentration at Salem, New Hampshire is 16.345 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Salem, New Hampshire is 0.599 ppb.

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

The current ozone (O3) concentration at Salem, New Hampshire is 45.028 ppm.

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

The current nitrogen dioxide (NO2) concentration at Salem, New Hampshire is 3.405 ppb.

Salem, New Hampshire live air quality index now

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

The current PM2.5 concentration at Salem, New Hampshire is 4.172 μg/m3.

Stay updated with real-time air quality in Salem, 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

Salem, New Hampshire

Last updated: ... (Local time)

Major air pollutants in Salem, New Hampshire

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

4.45 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.76 μg/m³

155

255

425

605+

Ozone (O₃)

46.07 ppb

201

201+

Sulfur Dioxide (SO₂)

0.40 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.18 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.19 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Salem, New Hampshire

Scroll To Air Quality Map

Track live Salem, New Hampshire air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-28T00:00:00.000Z	39 \| good	3.532 \| good	14.978 \| good	41.782 \| good	0.477 \| good	2.889 \| good	0.192 \| good
2026-03-28T01:00:00.000Z	37 \| good	3.717 \| good	15.306 \| good	40.396 \| good	0.425 \| good	3.172 \| good	0.181 \| good
2026-03-28T02:00:00.000Z	37 \| good	3.978 \| good	15.943 \| good	39.763 \| good	0.528 \| good	3.64 \| good	0.18 \| good
2026-03-28T03:00:00.000Z	35 \| good	4.151 \| good	16.843 \| good	38.45 \| good	0.489 \| good	3.346 \| good	0.212 \| good
2026-03-28T04:00:00.000Z	35 \| good	5.434 \| good	23.38 \| good	38.126 \| good	0.474 \| good	2.698 \| good	0.251 \| good
2026-03-28T05:00:00.000Z	33 \| good	5.238 \| good	22.458 \| good	36.268 \| good	0.385 \| good	3.095 \| good	0.211 \| good
2026-03-28T06:00:00.000Z	34 \| good	5.238 \| good	22.509 \| good	36.713 \| good	0.385 \| good	3.407 \| good	0.212 \| good
2026-03-28T07:00:00.000Z	33 \| good	4.878 \| good	20.355 \| good	36.111 \| good	0.518 \| good	3.489 \| good	0.18 \| good
2026-03-28T08:00:00.000Z	33 \| good	4.299 \| good	18.033 \| good	36.29 \| good	0.424 \| good	2.751 \| good	0.18 \| good
2026-03-28T09:00:00.000Z	34 \| good	4.308 \| good	18.067 \| good	36.8 \| good	0.378 \| good	2.133 \| good	0.151 \| good
2026-03-28T10:00:00.000Z	34 \| good	4.337 \| good	18.407 \| good	37.463 \| good	0.405 \| good	2.037 \| good	0.18 \| good
2026-03-28T11:00:00.000Z	34 \| good	4.346 \| good	18.235 \| good	37.126 \| good	0.425 \| good	2.681 \| good	0.181 \| good
2026-03-28T12:00:00.000Z	34 \| good	4.556 \| good	19.152 \| good	37.377 \| good	0.394 \| good	2.87 \| good	0.192 \| good
2026-03-28T13:00:00.000Z	35 \| good	4.571 \| good	19.097 \| good	37.754 \| good	0.398 \| good	2.845 \| good	0.192 \| good
2026-03-28T14:00:00.000Z	34 \| good	4.678 \| good	19.371 \| good	37.456 \| good	0.449 \| good	1.947 \| good	0.181 \| good
2026-03-28T15:00:00.000Z	35 \| good	4.69 \| good	19.195 \| good	38.181 \| good	0.464 \| good	1.883 \| good	0.181 \| good
2026-03-28T16:00:00.000Z	35 \| good	4.658 \| good	19.32 \| good	38.454 \| good	0.441 \| good	1.763 \| good	0.181 \| good
2026-03-28T17:00:00.000Z	38 \| good	4.587 \| good	18.775 \| good	41.086 \| good	0.456 \| good	1.22 \| good	0.181 \| good
2026-03-28T18:00:00.000Z	40 \| good	4.577 \| good	18.319 \| good	42.531 \| good	0.476 \| good	1.147 \| good	0.181 \| good
2026-03-28T19:00:00.000Z	39 \| good	4.565 \| good	18.784 \| good	42.013 \| good	0.47 \| good	1.027 \| good	0.181 \| good
2026-03-28T20:00:00.000Z	39 \| good	4.633 \| good	18.975 \| good	41.686 \| good	0.605 \| good	1.247 \| good	0.181 \| good
2026-03-28T21:00:00.000Z	39 \| good	4.555 \| good	18.613 \| good	41.562 \| good	0.605 \| good	1.839 \| good	0.181 \| good
2026-03-28T22:00:00.000Z	39 \| good	4.513 \| good	18.395 \| good	42.036 \| good	0.548 \| good	1.716 \| good	0.181 \| good
2026-03-28T23:00:00.000Z	37 \| good	4.427 \| good	18.208 \| good	40.369 \| good	0.531 \| good	2.316 \| good	0.201 \| good
2026-03-29T00:00:00.000Z	38 \| good	4.326 \| good	18.14 \| good	41.056 \| good	0.543 \| good	2.493 \| good	0.201 \| good
2026-03-29T01:00:00.000Z	36 \| good	4.319 \| good	17.511 \| good	39.485 \| good	0.548 \| good	3.29 \| good	0.221 \| good
2026-03-29T02:00:00.000Z	36 \| good	4.342 \| good	18.228 \| good	38.649 \| good	0.57 \| good	5.457 \| good	0.201 \| good
2026-03-29T03:00:00.000Z	29 \| good	3.572 \| good	16 \| good	30.684 \| good	0.657 \| good	6.96 \| good	0.236 \| good
2026-03-29T04:00:00.000Z	36 \| good	4.208 \| good	17.462 \| good	38.818 \| good	0.569 \| good	3.468 \| good	0.2 \| good
2026-03-29T05:00:00.000Z	37 \| good	4.123 \| good	17.338 \| good	39.732 \| good	0.546 \| good	3 \| good	0.2 \| good
2026-03-29T06:00:00.000Z	34 \| good	4.113 \| good	16.344 \| good	37.332 \| good	0.546 \| good	3.211 \| good	0.2 \| good
2026-03-29T07:00:00.000Z	33 \| good	4.073 \| good	17.337 \| good	35.921 \| good	0.544 \| good	3.565 \| good	0.181 \| good
2026-03-29T08:00:00.000Z	33 \| good	4.124 \| good	17.293 \| good	36.393 \| good	0.521 \| good	7.951 \| good	0.2 \| good
2026-03-29T09:00:00.000Z	31 \| good	4.099 \| good	16.777 \| good	34.339 \| good	0.518 \| good	7.991 \| good	0.2 \| good
2026-03-29T10:00:00.000Z	33 \| good	4.042 \| good	16.496 \| good	36.095 \| good	0.554 \| good	12.454 \| good	0.163 \| good
2026-03-29T11:00:00.000Z	31 \| good	3.963 \| good	16.459 \| good	34.333 \| good	0.574 \| good	12.731 \| good	0.163 \| good
2026-03-29T12:00:00.000Z	31 \| good	3.994 \| good	16.505 \| good	33.023 \| good	0.51 \| good	11.327 \| good	0.183 \| good
2026-03-29T13:00:00.000Z	31 \| good	4 \| good	16.609 \| good	33.554 \| good	0.53 \| good	8.314 \| good	0.227 \| good
2026-03-29T14:00:00.000Z	32 \| good	4.23 \| good	17.681 \| good	35.259 \| good	0.545 \| good	3.328 \| good	0.181 \| good
2026-03-29T15:00:00.000Z	34 \| good	4.337 \| good	17.757 \| good	36.959 \| good	0.566 \| good	2.897 \| good	0.181 \| good
2026-03-29T16:00:00.000Z	36 \| good	4.879 \| good	19.484 \| good	39.131 \| good	0.596 \| good	3.607 \| good	0.181 \| good
2026-03-29T17:00:00.000Z	40 \| good	4.814 \| good	19.752 \| good	42.59 \| good	0.46 \| good	2.654 \| good	0.181 \| good
2026-03-29T18:00:00.000Z	40 \| good	4.584 \| good	18.448 \| good	42.863 \| good	0.445 \| good	3.136 \| good	0.17 \| good
2026-03-29T19:00:00.000Z	41 \| good	4.545 \| good	18.932 \| good	44.482 \| good	0.443 \| good	3.445 \| good	0.17 \| good
2026-03-29T20:00:00.000Z	42 \| good	4.228 \| good	17.465 \| good	45.211 \| good	0.605 \| good	3.443 \| good	0.17 \| good
2026-03-29T21:00:00.000Z	42 \| good	4.179 \| good	17.288 \| good	44.971 \| good	0.596 \| good	3.856 \| good	0.181 \| good
2026-03-29T22:00:00.000Z	42 \| good	4.201 \| good	16.714 \| good	45.166 \| good	0.555 \| good	3.382 \| good	0.189 \| good
2026-03-29T23:00:00.000Z	43 \| good	4.494 \| good	18.69 \| good	46.109 \| good	0.427 \| good	7.841 \| good	0.189 \| good
2026-03-29T23:00:00.000Z	43 \| good	4.447 \| good	17.761 \| good	46.072 \| good	0.402 \| good	7.178 \| good	0.189 \| good
2026-03-29T23:00:00.000Z	52 \| moderate	10.308 \| good	45.809 \| good	35.387 \| good	1.236 \| good	7.202 \| good	0.184 \| good
2026-03-30T00:00:00.000Z	52 \| moderate	10.268 \| good	45.302 \| good	33.965 \| good	1.567 \| good	9.673 \| good	0.202 \| good
2026-03-30T01:00:00.000Z	38 \| good	7.204 \| good	31.759 \| good	37.219 \| good	1.736 \| good	9.256 \| good	0.205 \| good
2026-03-30T02:00:00.000Z	38 \| good	7.495 \| good	32.843 \| good	37.039 \| good	1.906 \| good	8.84 \| good	0.208 \| good
2026-03-30T03:00:00.000Z	44 \| good	8.01 \| good	35.343 \| good	35.119 \| good	2.075 \| good	8.424 \| good	0.211 \| good
2026-03-30T04:00:00.000Z	44 \| good	7.928 \| good	34.588 \| good	34.734 \| good	1.969 \| good	7.342 \| good	0.206 \| good
2026-03-30T05:00:00.000Z	44 \| good	7.532 \| good	33.094 \| good	34.135 \| good	1.863 \| good	6.259 \| good	0.201 \| good
2026-03-30T06:00:00.000Z	44 \| good	7.948 \| good	34.964 \| good	32.53 \| good	1.757 \| good	5.176 \| good	0.196 \| good
2026-03-30T07:00:00.000Z	38 \| good	6.758 \| good	30.13 \| good	33.911 \| good	1.586 \| good	4.597 \| good	0.185 \| good
2026-03-30T08:00:00.000Z	33 \| good	6.021 \| good	26.599 \| good	34.652 \| good	1.415 \| good	4.017 \| good	0.173 \| good
2026-03-30T09:00:00.000Z	32 \| good	4.557 \| good	19.748 \| good	35.019 \| good	1.244 \| good	3.438 \| good	0.162 \| good
2026-03-30T10:00:00.000Z	29 \| good	4.168 \| good	18.289 \| good	30.896 \| good	1.261 \| good	4.117 \| good	0.167 \| good
2026-03-30T11:00:00.000Z	29 \| good	4.181 \| good	18.299 \| good	31.435 \| good	1.279 \| good	4.797 \| good	0.172 \| good
2026-03-30T12:00:00.000Z	31 \| good	4.692 \| good	20.355 \| good	32.696 \| good	1.296 \| good	5.476 \| good	0.178 \| good
2026-03-30T13:00:00.000Z	38 \| good	6.534 \| good	29.023 \| good	34.375 \| good	1.45 \| good	5.164 \| good	0.185 \| good
2026-03-30T14:00:00.000Z	44 \| good	8.355 \| good	36.546 \| good	37.908 \| good	1.604 \| good	4.852 \| good	0.192 \| good
2026-03-30T15:00:00.000Z	38 \| good	6.965 \| good	30.961 \| good	38.264 \| good	1.758 \| good	4.54 \| good	0.199 \| good
2026-03-30T16:00:00.000Z	44 \| good	8.179 \| good	35.932 \| good	38.34 \| good	1.841 \| good	4.011 \| good	0.193 \| good
2026-03-30T17:00:00.000Z	49 \| good	9.48 \| good	42.528 \| good	40.987 \| good	1.923 \| good	3.481 \| good	0.187 \| good
2026-03-30T18:00:00.000Z	56 \| moderate	11.787 \| good	52.724 \| good	44.914 \| good	2.006 \| good	2.952 \| good	0.181 \| good
2026-03-30T19:00:00.000Z	54 \| moderate	11.065 \| good	49.07 \| good	45.942 \| good	1.893 \| good	2.853 \| good	0.176 \| good
2026-03-30T20:00:00.000Z	54 \| moderate	11.265 \| good	49.95 \| good	46.397 \| good	1.781 \| good	2.753 \| good	0.17 \| good
2026-03-30T21:00:00.000Z	54 \| moderate	11.296 \| good	49.819 \| good	46.886 \| good	1.668 \| good	2.654 \| good	0.165 \| good
2026-03-30T22:00:00.000Z	52 \| moderate	9.779 \| good	43.337 \| good	45.013 \| good	1.741 \| good	4.251 \| good	0.177 \| good
2026-03-30T23:00:00.000Z	49 \| good	8.868 \| good	39.704 \| good	36.04 \| good	1.815 \| good	5.848 \| good	0.188 \| good
2026-03-31T00:00:00.000Z	49 \| good	8.772 \| good	38.905 \| good	34.218 \| good	1.888 \| good	7.444 \| good	0.2 \| good
2026-03-31T01:00:00.000Z	44 \| good	8.477 \| good	37.863 \| good	33.752 \| good	2.01 \| good	7.577 \| good	0.203 \| good
2026-03-31T02:00:00.000Z	49 \| good	8.83 \| good	39.121 \| good	33.93 \| good	2.132 \| good	7.71 \| good	0.207 \| good
2026-03-31T03:00:00.000Z	49 \| good	9.296 \| good	41.21 \| good	34.552 \| good	2.253 \| good	7.842 \| good	0.21 \| good
2026-03-31T04:00:00.000Z	52 \| moderate	9.683 \| good	43.035 \| good	33.866 \| good	2.341 \| good	7.326 \| good	0.209 \| good
2026-03-31T05:00:00.000Z	52 \| moderate	10.106 \| good	45.036 \| good	32.773 \| good	2.429 \| good	6.81 \| good	0.209 \| good
2026-03-31T06:00:00.000Z	58 \| moderate	13.416 \| fine	13.728 \| good	36.927 \| good	2.552 \| good	6.332 \| good	0.21 \| good
2026-03-31T07:00:00.000Z	56 \| moderate	11.951 \| good	53.542 \| good	27.199 \| good	2.507 \| good	6.039 \| good	0.208 \| good
2026-03-31T08:00:00.000Z	56 \| moderate	12.242 \| fine	55.557 \| fine	27.207 \| good	2.497 \| good	5.785 \| good	0.206 \| good
2026-03-31T09:00:00.000Z	56 \| moderate	12.051 \| good	54.336 \| good	27.07 \| good	2.488 \| good	5.53 \| good	0.205 \| good
2026-03-31T10:00:00.000Z	60 \| moderate	14.035 \| fine	62.667 \| fine	22.114 \| good	2.477 \| good	7.708 \| good	0.221 \| good
2026-03-31T11:00:00.000Z	58 \| moderate	12.774 \| fine	57.364 \| fine	23.977 \| good	2.466 \| good	9.887 \| good	0.236 \| good
2026-03-31T12:00:00.000Z	71 \| moderate	20.369 \| fine	20.499 \| good	26.509 \| good	2.506 \| good	12.275 \| good	0.254 \| good
2026-03-31T13:00:00.000Z	73 \| moderate	20.837 \| fine	21.015 \| good	28.781 \| good	2.299 \| good	10.715 \| good	0.242 \| good
2026-03-31T14:00:00.000Z	69 \| moderate	18.757 \| fine	19.001 \| good	31.052 \| good	2.092 \| good	9.155 \| good	0.229 \| good
2026-03-31T15:00:00.000Z	60 \| moderate	14.432 \| fine	14.882 \| good	33.323 \| good	1.885 \| good	7.596 \| good	0.217 \| good
2026-03-31T16:00:00.000Z	58 \| moderate	12.828 \| fine	13.466 \| good	34.476 \| good	1.59 \| good	6.569 \| good	0.214 \| good
2026-03-31T17:00:00.000Z	56 \| moderate	11.769 \| good	52.445 \| good	26.337 \| good	1.275 \| good	5.489 \| good	0.209 \| good
2026-03-31T18:00:00.000Z	54 \| moderate	11.168 \| good	12.089 \| good	36.783 \| good	0.999 \| good	4.517 \| good	0.207 \| good
2026-03-31T19:00:00.000Z	44 \| good	8.128 \| good	9.074 \| good	37.227 \| good	0.847 \| good	4.236 \| good	0.206 \| good
2026-03-31T20:00:00.000Z	38 \| good	6.519 \| good	7.344 \| good	37.67 \| good	0.694 \| good	3.956 \| good	0.204 \| good
2026-03-31T21:00:00.000Z	35 \| good	5.744 \| good	6.533 \| good	38.114 \| good	0.542 \| good	3.675 \| good	0.203 \| good
2026-03-31T22:00:00.000Z	35 \| good	6.004 \| good	7.044 \| good	38.089 \| good	0.548 \| good	3.961 \| good	0.202 \| good

Salem

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

0.19ppm

How accurate is New Hampshire, USA air quality data?

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

Source: Ambee Data Sources

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Frequently asked questions

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

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

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

The worst air quality in Salem, New Hampshire in the last 24 hours was observed at 09:00:00 on 2026-03-29.

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

In the last 24 hrs, the best air quality in Salem, New Hampshire was observed at 03:00:00 on 2026-03-29.

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

The current air quality in Salem, New Hampshire is 42, categorized as Good based on real-time data.

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

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

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

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

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

The current PM_2.5 concentration at Salem, New Hampshire is 4.172 μg/m³.

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

The current PM₁₀ concentration at Salem, New Hampshire is 16.345 μg/m³.

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

The current carbon monoxide (CO) concentration at Salem, New Hampshire is 0.183 ppm.

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

The current sulfur dioxide (SO₂) concentration at Salem, New Hampshire is 0.599 ppb.

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

The current ozone (O₃) concentration at Salem, New Hampshire is 45.028 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Salem, New Hampshire is 3.405 ppb.

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