What is the current concentration of PM10 in Hermiston, Oregon?

The current PM10 concentration at Hermiston, Oregon is 72.746 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Hermiston, Oregon?

The current sulfur dioxide (SO2) concentration at Hermiston, Oregon is 0.678 ppb.

What is the current concentration of ozone (O3) in Hermiston, Oregon?

The current ozone (O3) concentration at Hermiston, Oregon is 14.044 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Hermiston, Oregon?

The current nitrogen dioxide (NO2) concentration at Hermiston, Oregon is 12.824 ppb.

Hermiston, Oregon live air quality index now

Q: What is the current concentration of PM2.5 in Hermiston, Oregon?

The current PM2.5 concentration at Hermiston, Oregon is 16.469 μg/m3.

Stay updated with real-time air quality in Hermiston, Oregon 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)

Moderate

Hermiston, Oregon

Last updated: ... (Local time)

Major air pollutants in Hermiston, Oregon

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

16.47 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

72.75 μg/m³

155

255

425

605+

Ozone (O₃)

14.04 ppb

201

201+

Sulfur Dioxide (SO₂)

0.68 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

12.82 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.22 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Hermiston, Oregon

Get Live Pollen Counts

Hermiston, Oregon

Scroll To Air Quality Map

Track live Hermiston, Oregon air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	38 \| good	7.476 \| good	32.936 \| good	21.035 \| good	0.867 \| good	4.214 \| good	0.16 \| good
2026-10-20T22:00:00.000Z	38 \| good	7.477 \| good	32.937 \| good	23.081 \| good	0.867 \| good	2.952 \| good	0.18 \| good
2026-10-20T23:00:00.000Z	44 \| good	7.984 \| good	34.906 \| good	26.063 \| good	0.819 \| good	3.599 \| good	0.18 \| good
2026-10-21T00:00:00.000Z	44 \| good	8.189 \| good	35.899 \| good	27.027 \| good	0.837 \| good	3.786 \| good	0.199 \| good
2026-10-21T01:00:00.000Z	44 \| good	8.406 \| good	36.941 \| good	28.002 \| good	0.73 \| good	6.711 \| good	0.218 \| good
2026-10-21T02:00:00.000Z	49 \| good	9.39 \| good	41.913 \| good	27.999 \| good	0.851 \| good	9.315 \| good	0.199 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	12.438 \| fine	56.95 \| fine	16.686 \| good	0.301 \| good	8.091 \| good	0.205 \| good
2026-10-21T04:00:00.000Z	54 \| moderate	10.905 \| good	47.946 \| good	19.074 \| good	0.608 \| good	11.809 \| good	0.22 \| good
2026-10-21T05:00:00.000Z	54 \| moderate	10.907 \| good	48.003 \| good	16.031 \| good	0.608 \| good	10.277 \| good	0.218 \| good
2026-10-21T06:00:00.000Z	52 \| moderate	9.631 \| good	43.024 \| good	15.033 \| good	0.454 \| good	9.605 \| good	0.198 \| good
2026-10-21T07:00:00.000Z	49 \| good	9.14 \| good	41.009 \| good	12.078 \| good	0.453 \| good	9.596 \| good	0.217 \| good
2026-10-21T08:00:00.000Z	49 \| good	9.451 \| good	41.961 \| good	10.128 \| good	0.414 \| good	10.548 \| good	0.258 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	9.762 \| good	42.95 \| good	9.132 \| good	0.794 \| good	10.57 \| good	0.299 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	9.874 \| good	44.016 \| good	9.154 \| good	0.448 \| good	9.22 \| good	0.259 \| good
2026-10-21T11:00:00.000Z	52 \| moderate	9.982 \| good	44.058 \| good	9.116 \| good	0.521 \| good	10.783 \| good	0.318 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	10.081 \| good	45.061 \| good	6.973 \| good	0.448 \| good	8.77 \| good	0.298 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	9.594 \| good	43.133 \| good	6.967 \| good	0.448 \| good	8.997 \| good	0.299 \| good
2026-10-21T14:00:00.000Z	49 \| good	9.491 \| good	42.164 \| good	4.976 \| good	0.473 \| good	10.659 \| good	0.399 \| good
2026-10-21T15:00:00.000Z	52 \| moderate	9.5 \| good	42.21 \| good	5.962 \| good	0.579 \| good	9.96 \| good	0.44 \| good
2026-10-21T16:00:00.000Z	52 \| moderate	10.473 \| good	46.179 \| good	5.969 \| good	0.568 \| good	9.284 \| good	0.401 \| good
2026-10-21T17:00:00.000Z	52 \| moderate	9.908 \| good	44.301 \| good	7.993 \| good	0.59 \| good	7.129 \| good	0.541 \| good
2026-10-21T18:00:00.000Z	52 \| moderate	9.593 \| good	43.302 \| good	11.967 \| good	0.755 \| good	4.781 \| good	0.419 \| good
2026-10-21T19:00:00.000Z	52 \| moderate	10.269 \| good	45.209 \| good	15.012 \| good	0.738 \| good	4.511 \| good	0.38 \| good
2026-10-21T20:00:00.000Z	56 \| moderate	12.042 \| good	54.04 \| good	21.994 \| good	0.918 \| good	4.561 \| good	0.339 \| good
2026-10-21T21:00:00.000Z	60 \| moderate	13.581 \| fine	60.844 \| fine	24.029 \| good	1.124 \| good	8.191 \| good	0.34 \| good
2026-10-21T22:00:00.000Z	62 \| moderate	15.34 \| fine	68.645 \| fine	29.007 \| good	1.2 \| good	8.691 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	62 \| moderate	14.657 \| fine	64.685 \| fine	31.012 \| good	1.719 \| good	9.5 \| good	0.28 \| good
2026-10-22T00:00:00.000Z	62 \| moderate	14.626 \| fine	64.626 \| fine	34.978 \| good	0.94 \| good	10.595 \| good	0.299 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.845 \| fine	62.607 \| fine	34.905 \| good	0.958 \| good	10.019 \| good	0.299 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	14.031 \| fine	62.639 \| fine	33.927 \| good	0.775 \| good	18.419 \| good	0.442 \| good
2026-10-22T03:00:00.000Z	67 \| moderate	18.363 \| fine	81.068 \| fine	16.59 \| good	0.396 \| good	9.678 \| good	0.257 \| good
2026-10-22T04:00:00.000Z	60 \| moderate	13.732 \| fine	62.699 \| fine	31.712 \| good	0.728 \| good	14.697 \| good	0.503 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	14.033 \| fine	62.709 \| fine	27.814 \| good	0.632 \| good	12.042 \| good	0.482 \| good
2026-10-22T06:00:00.000Z	62 \| moderate	14.611 \| fine	64.638 \| fine	21.844 \| good	0.628 \| good	15.376 \| good	0.462 \| good
2026-10-22T07:00:00.000Z	62 \| moderate	15.002 \| fine	66.595 \| fine	15.937 \| good	0.487 \| good	17.9 \| good	0.461 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.002 \| fine	66.564 \| fine	13.965 \| good	0.517 \| good	17.663 \| good	0.361 \| good
2026-10-22T09:00:00.000Z	62 \| moderate	14.808 \| fine	66.536 \| fine	8.079 \| good	0.493 \| good	18.311 \| good	0.342 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.433 \| fine	64.562 \| fine	8.068 \| good	0.492 \| good	16.818 \| good	0.359 \| good
2026-10-22T11:00:00.000Z	60 \| moderate	14.441 \| fine	64.55 \| fine	7.047 \| good	0.526 \| good	16.577 \| good	0.359 \| good
2026-10-22T12:00:00.000Z	60 \| moderate	14.242 \| fine	64.521 \| fine	7.935 \| good	0.616 \| good	15.907 \| good	0.361 \| good
2026-10-22T13:00:00.000Z	60 \| moderate	14.15 \| fine	62.574 \| fine	7.944 \| good	0.505 \| good	14.955 \| good	0.34 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	14.061 \| fine	62.629 \| fine	7.955 \| good	0.539 \| good	14.728 \| good	0.36 \| good
2026-10-22T15:00:00.000Z	60 \| moderate	13.88 \| fine	62.703 \| fine	6.948 \| good	0.596 \| good	14.299 \| good	0.421 \| good
2026-10-22T16:00:00.000Z	60 \| moderate	14.074 \| fine	62.768 \| fine	6.972 \| good	0.667 \| good	14.094 \| good	0.522 \| good
2026-10-22T17:00:00.000Z	60 \| moderate	14.096 \| fine	62.844 \| fine	6.971 \| good	0.711 \| good	14.536 \| good	0.483 \| good
2026-10-22T18:00:00.000Z	62 \| moderate	14.88 \| fine	66.798 \| fine	9.015 \| good	0.727 \| good	14.357 \| good	0.359 \| good
2026-10-22T19:00:00.000Z	62 \| moderate	14.882 \| fine	66.822 \| fine	11.13 \| good	0.902 \| good	14.893 \| good	0.34 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.469 \| fine	72.746 \| fine	14.044 \| good	0.678 \| good	12.824 \| good	0.219 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.469 \| fine	72.746 \| fine	14.044 \| good	0.678 \| good	12.824 \| good	0.219 \| good
2026-10-22T21:00:00.000Z	77 \| moderate	22.897 \| fine	100.989 \| fine	35.398 \| good	0.308 \| good	4.553 \| good	0.271 \| good
2026-10-22T22:00:00.000Z	75 \| moderate	21.964 \| fine	95.404 \| fine	36.564 \| good	0.341 \| good	5.102 \| good	0.291 \| good
2026-10-22T23:00:00.000Z	79 \| moderate	23.902 \| fine	105.221 \| fine	35.199 \| good	0.378 \| good	6.02 \| good	0.317 \| good
2026-10-23T00:00:00.000Z	84 \| moderate	26.777 \| fine	117.049 \| fine	30.511 \| good	0.392 \| good	6.874 \| good	0.339 \| good
2026-10-23T01:00:00.000Z	86 \| moderate	28.493 \| fine	123.022 \| fine	27.796 \| good	0.376 \| good	7.721 \| good	0.353 \| good
2026-10-23T02:00:00.000Z	90 \| moderate	29.548 \| fine	128.643 \| fine	22.857 \| good	0.361 \| good	8.008 \| good	0.354 \| good
2026-10-23T03:00:00.000Z	73 \| moderate	20.931 \| fine	92.331 \| fine	28.873 \| good	0.363 \| good	7.66 \| good	0.336 \| good
2026-10-23T04:00:00.000Z	33 \| good	5.296 \| good	23.058 \| good	35.88 \| good	0.385 \| good	7.155 \| good	0.309 \| good
2026-10-23T05:00:00.000Z	31 \| good	0.635 \| good	2.16 \| good	34.396 \| good	0.396 \| good	6.414 \| good	0.273 \| good
2026-10-23T06:00:00.000Z	28 \| good	0.439 \| good	2.002 \| good	29.829 \| good	0.397 \| good	5.115 \| good	0.234 \| good
2026-10-23T07:00:00.000Z	26 \| good	0.805 \| good	3.035 \| good	28.021 \| good	0.391 \| good	3.772 \| good	0.202 \| good
2026-10-23T08:00:00.000Z	24 \| good	0.796 \| good	3.035 \| good	26.133 \| good	0.379 \| good	2.799 \| good	0.178 \| good
2026-10-23T09:00:00.000Z	23 \| good	0.571 \| good	2.075 \| good	24.923 \| good	0.368 \| good	2.147 \| good	0.162 \| good
2026-10-23T10:00:00.000Z	21 \| good	0.277 \| good	1.023 \| good	23.26 \| good	0.355 \| good	1.703 \| good	0.152 \| good
2026-10-23T11:00:00.000Z	22 \| good	0.29 \| good	1.023 \| good	24.262 \| good	0.342 \| good	1.441 \| good	0.146 \| good
2026-10-23T12:00:00.000Z	21 \| good	0.321 \| good	1.049 \| good	22.724 \| good	0.334 \| good	1.283 \| good	0.142 \| good
2026-10-23T13:00:00.000Z	23 \| good	0.289 \| good	1.023 \| good	24.545 \| good	0.33 \| good	1.234 \| good	0.141 \| good
2026-10-23T14:00:00.000Z	23 \| good	0.728 \| good	3.032 \| good	24.709 \| good	0.328 \| good	1.363 \| good	0.141 \| good
2026-10-23T15:00:00.000Z	25 \| good	0.456 \| good	2.011 \| good	27.36 \| good	0.326 \| good	1.628 \| good	0.145 \| good
2026-10-23T16:00:00.000Z	30 \| good	0.543 \| good	2.061 \| good	31.669 \| good	0.324 \| good	1.544 \| good	0.149 \| good
2026-10-23T17:00:00.000Z	28 \| good	2.181 \| good	8.978 \| good	29.749 \| good	0.345 \| good	1.097 \| good	0.146 \| good
2026-10-23T18:00:00.000Z	30 \| good	2.634 \| good	10.937 \| good	31.627 \| good	0.371 \| good	0.795 \| good	0.143 \| good
2026-10-23T19:00:00.000Z	32 \| good	1.85 \| good	8.005 \| good	35.089 \| good	0.396 \| good	0.646 \| good	0.142 \| good
2026-10-23T20:00:00.000Z	32 \| good	2.912 \| good	11.98 \| good	35.486 \| good	0.425 \| good	0.584 \| good	0.142 \| good
2026-10-23T21:00:00.000Z	34 \| good	3.142 \| good	13.776 \| good	37.3 \| good	0.443 \| good	0.567 \| good	0.142 \| good
2026-10-23T22:00:00.000Z	39 \| good	2.436 \| good	9.992 \| good	41.667 \| good	0.445 \| good	0.593 \| good	0.143 \| good
2026-10-23T23:00:00.000Z	36 \| good	2.346 \| good	9.907 \| good	39.322 \| good	0.442 \| good	0.671 \| good	0.144 \| good
2026-10-24T00:00:00.000Z	28 \| good	1.706 \| good	6.953 \| good	30.214 \| good	0.433 \| good	0.926 \| good	0.145 \| good
2026-10-24T01:00:00.000Z	21 \| good	0.691 \| good	2.059 \| good	22.61 \| good	0.409 \| good	1.975 \| good	0.154 \| good
2026-10-24T02:00:00.000Z	18 \| good	2.091 \| good	8.063 \| good	19.305 \| good	0.402 \| good	2.967 \| good	0.163 \| good
2026-10-24T03:00:00.000Z	13 \| good	0.567 \| good	2.085 \| good	13.784 \| good	0.398 \| good	3.591 \| good	0.169 \| good
2026-10-24T04:00:00.000Z	14 \| good	0.635 \| good	2.1 \| good	14.803 \| good	0.388 \| good	4.08 \| good	0.173 \| good
2026-10-24T05:00:00.000Z	10 \| good	0.31 \| good	1.039 \| good	11.357 \| good	0.368 \| good	4.441 \| good	0.177 \| good
2026-10-24T06:00:00.000Z	11 \| good	1.548 \| good	6.049 \| good	6.5 \| good	0.338 \| good	4.721 \| good	0.18 \| good
2026-10-24T07:00:00.000Z	11 \| good	1.57 \| good	6.02 \| good	3.719 \| good	0.302 \| good	4.904 \| good	0.183 \| good
2026-10-24T08:00:00.000Z	11 \| good	2.028 \| good	7.996 \| good	8.621 \| good	0.267 \| good	5.013 \| good	0.185 \| good
2026-10-24T09:00:00.000Z	11 \| good	1.66 \| good	6.982 \| good	6.205 \| good	0.235 \| good	5.15 \| good	0.187 \| good
2026-10-24T10:00:00.000Z	11 \| good	2.401 \| good	9.955 \| good	4.001 \| good	0.212 \| good	5.346 \| good	0.19 \| good
2026-10-24T11:00:00.000Z	11 \| good	2.409 \| good	10.009 \| good	5.857 \| good	0.195 \| good	5.584 \| good	0.194 \| good
2026-10-24T12:00:00.000Z	16 \| good	3.247 \| good	13.931 \| good	6.649 \| good	0.181 \| good	5.794 \| good	0.198 \| good
2026-10-24T13:00:00.000Z	16 \| good	3.146 \| good	13.903 \| good	4.652 \| good	0.17 \| good	6.042 \| good	0.201 \| good
2026-10-24T14:00:00.000Z	22 \| good	3.658 \| good	15.98 \| good	3.571 \| good	0.166 \| good	6.466 \| good	0.207 \| good
2026-10-24T15:00:00.000Z	16 \| good	3.345 \| good	14.931 \| good	8.029 \| good	0.172 \| good	5.598 \| good	0.217 \| good
2026-10-24T16:00:00.000Z	22 \| good	3.732 \| good	16.035 \| good	14.361 \| good	0.187 \| good	4.253 \| good	0.224 \| good
2026-10-24T17:00:00.000Z	27 \| good	5.309 \| good	22.909 \| good	15.623 \| good	0.275 \| good	2.921 \| good	0.197 \| good
2026-10-24T18:00:00.000Z	38 \| good	7.079 \| good	31.783 \| good	23.939 \| good	0.378 \| good	1.781 \| good	0.169 \| good
2026-10-24T19:00:00.000Z	33 \| good	5.625 \| good	24.001 \| good	28.522 \| good	0.403 \| good	1.442 \| good	0.159 \| good
2026-10-24T20:00:00.000Z	38 \| good	7.247 \| good	31.906 \| good	29.166 \| good	0.416 \| good	1.253 \| good	0.154 \| good

Hermiston

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Hermiston, Oregon air quality map: Track AQI near you

0.34ppm

How accurate is Oregon, USA air quality data?

Air quality data and pollutant measurements for Oregon, 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 Hermiston, Oregon updated?

The air quality for Hermiston, Oregon is updated every hour.

When was the worst air quality at Hermiston, Oregon in the last 24 hrs?

The worst air quality in Hermiston, Oregon in the last 24 hours was observed at 03:00:00 on 2026-10-22.

When was the best air quality at Hermiston, Oregon in the last 24 hrs?

In the last 24 hrs, the best air quality in Hermiston, Oregon was observed at 08:00:00 on 2026-10-21.

What is the current air quality in Hermiston, Oregon?

The current air quality in Hermiston, Oregon is 64, categorized as Moderate based on real-time data.

What pollutant is the most common in Hermiston, Oregon?

The most common pollutant in Hermiston, Oregon is PM2.5.

What should I do if the air quality in Hermiston, Oregon is poor?

If the air quality in Hermiston, Oregon is poor, consider staying indoors and wearing a mask to protect yourself.

What is the current concentration of PM_2.5 in Hermiston, Oregon?

The current PM_2.5 concentration at Hermiston, Oregon is 16.469 μg/m³.

What is the current concentration of PM₁₀ in Hermiston, Oregon?

The current PM₁₀ concentration at Hermiston, Oregon is 72.746 μg/m³.

What is the current concentration of carbon monoxide (CO) in Hermiston, Oregon?

The current carbon monoxide (CO) concentration at Hermiston, Oregon is 0.219 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Hermiston, Oregon?

The current sulfur dioxide (SO₂) concentration at Hermiston, Oregon is 0.678 ppb.

What is the current concentration of ozone (O₃) in Hermiston, Oregon?

The current ozone (O₃) concentration at Hermiston, Oregon is 14.044 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Hermiston, Oregon?

The current nitrogen dioxide (NO₂) concentration at Hermiston, Oregon is 12.824 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-20T21:00:00.000Z	38 \| good	7.476 \| good	32.936 \| good	21.035 \| good	0.867 \| good	4.214 \| good	0.16 \| good
2026-10-20T22:00:00.000Z	38 \| good	7.477 \| good	32.937 \| good	23.081 \| good	0.867 \| good	2.952 \| good	0.18 \| good
2026-10-20T23:00:00.000Z	44 \| good	7.984 \| good	34.906 \| good	26.063 \| good	0.819 \| good	3.599 \| good	0.18 \| good
2026-10-21T00:00:00.000Z	44 \| good	8.189 \| good	35.899 \| good	27.027 \| good	0.837 \| good	3.786 \| good	0.199 \| good
2026-10-21T01:00:00.000Z	44 \| good	8.406 \| good	36.941 \| good	28.002 \| good	0.73 \| good	6.711 \| good	0.218 \| good
2026-10-21T02:00:00.000Z	49 \| good	9.39 \| good	41.913 \| good	27.999 \| good	0.851 \| good	9.315 \| good	0.199 \| good
2026-10-21T03:00:00.000Z	56 \| moderate	12.438 \| fine	56.95 \| fine	16.686 \| good	0.301 \| good	8.091 \| good	0.205 \| good
2026-10-21T04:00:00.000Z	54 \| moderate	10.905 \| good	47.946 \| good	19.074 \| good	0.608 \| good	11.809 \| good	0.22 \| good
2026-10-21T05:00:00.000Z	54 \| moderate	10.907 \| good	48.003 \| good	16.031 \| good	0.608 \| good	10.277 \| good	0.218 \| good
2026-10-21T06:00:00.000Z	52 \| moderate	9.631 \| good	43.024 \| good	15.033 \| good	0.454 \| good	9.605 \| good	0.198 \| good
2026-10-21T07:00:00.000Z	49 \| good	9.14 \| good	41.009 \| good	12.078 \| good	0.453 \| good	9.596 \| good	0.217 \| good
2026-10-21T08:00:00.000Z	49 \| good	9.451 \| good	41.961 \| good	10.128 \| good	0.414 \| good	10.548 \| good	0.258 \| good
2026-10-21T09:00:00.000Z	52 \| moderate	9.762 \| good	42.95 \| good	9.132 \| good	0.794 \| good	10.57 \| good	0.299 \| good
2026-10-21T10:00:00.000Z	52 \| moderate	9.874 \| good	44.016 \| good	9.154 \| good	0.448 \| good	9.22 \| good	0.259 \| good
2026-10-21T11:00:00.000Z	52 \| moderate	9.982 \| good	44.058 \| good	9.116 \| good	0.521 \| good	10.783 \| good	0.318 \| good
2026-10-21T12:00:00.000Z	52 \| moderate	10.081 \| good	45.061 \| good	6.973 \| good	0.448 \| good	8.77 \| good	0.298 \| good
2026-10-21T13:00:00.000Z	52 \| moderate	9.594 \| good	43.133 \| good	6.967 \| good	0.448 \| good	8.997 \| good	0.299 \| good
2026-10-21T14:00:00.000Z	49 \| good	9.491 \| good	42.164 \| good	4.976 \| good	0.473 \| good	10.659 \| good	0.399 \| good
2026-10-21T15:00:00.000Z	52 \| moderate	9.5 \| good	42.21 \| good	5.962 \| good	0.579 \| good	9.96 \| good	0.44 \| good
2026-10-21T16:00:00.000Z	52 \| moderate	10.473 \| good	46.179 \| good	5.969 \| good	0.568 \| good	9.284 \| good	0.401 \| good
2026-10-21T17:00:00.000Z	52 \| moderate	9.908 \| good	44.301 \| good	7.993 \| good	0.59 \| good	7.129 \| good	0.541 \| good
2026-10-21T18:00:00.000Z	52 \| moderate	9.593 \| good	43.302 \| good	11.967 \| good	0.755 \| good	4.781 \| good	0.419 \| good
2026-10-21T19:00:00.000Z	52 \| moderate	10.269 \| good	45.209 \| good	15.012 \| good	0.738 \| good	4.511 \| good	0.38 \| good
2026-10-21T20:00:00.000Z	56 \| moderate	12.042 \| good	54.04 \| good	21.994 \| good	0.918 \| good	4.561 \| good	0.339 \| good
2026-10-21T21:00:00.000Z	60 \| moderate	13.581 \| fine	60.844 \| fine	24.029 \| good	1.124 \| good	8.191 \| good	0.34 \| good
2026-10-21T22:00:00.000Z	62 \| moderate	15.34 \| fine	68.645 \| fine	29.007 \| good	1.2 \| good	8.691 \| good	0.261 \| good
2026-10-21T23:00:00.000Z	62 \| moderate	14.657 \| fine	64.685 \| fine	31.012 \| good	1.719 \| good	9.5 \| good	0.28 \| good
2026-10-22T00:00:00.000Z	62 \| moderate	14.626 \| fine	64.626 \| fine	34.978 \| good	0.94 \| good	10.595 \| good	0.299 \| good
2026-10-22T01:00:00.000Z	60 \| moderate	13.845 \| fine	62.607 \| fine	34.905 \| good	0.958 \| good	10.019 \| good	0.299 \| good
2026-10-22T02:00:00.000Z	60 \| moderate	14.031 \| fine	62.639 \| fine	33.927 \| good	0.775 \| good	18.419 \| good	0.442 \| good
2026-10-22T03:00:00.000Z	67 \| moderate	18.363 \| fine	81.068 \| fine	16.59 \| good	0.396 \| good	9.678 \| good	0.257 \| good
2026-10-22T04:00:00.000Z	60 \| moderate	13.732 \| fine	62.699 \| fine	31.712 \| good	0.728 \| good	14.697 \| good	0.503 \| good
2026-10-22T05:00:00.000Z	60 \| moderate	14.033 \| fine	62.709 \| fine	27.814 \| good	0.632 \| good	12.042 \| good	0.482 \| good
2026-10-22T06:00:00.000Z	62 \| moderate	14.611 \| fine	64.638 \| fine	21.844 \| good	0.628 \| good	15.376 \| good	0.462 \| good
2026-10-22T07:00:00.000Z	62 \| moderate	15.002 \| fine	66.595 \| fine	15.937 \| good	0.487 \| good	17.9 \| good	0.461 \| good
2026-10-22T08:00:00.000Z	62 \| moderate	15.002 \| fine	66.564 \| fine	13.965 \| good	0.517 \| good	17.663 \| good	0.361 \| good
2026-10-22T09:00:00.000Z	62 \| moderate	14.808 \| fine	66.536 \| fine	8.079 \| good	0.493 \| good	18.311 \| good	0.342 \| good
2026-10-22T10:00:00.000Z	60 \| moderate	14.433 \| fine	64.562 \| fine	8.068 \| good	0.492 \| good	16.818 \| good	0.359 \| good
2026-10-22T11:00:00.000Z	60 \| moderate	14.441 \| fine	64.55 \| fine	7.047 \| good	0.526 \| good	16.577 \| good	0.359 \| good
2026-10-22T12:00:00.000Z	60 \| moderate	14.242 \| fine	64.521 \| fine	7.935 \| good	0.616 \| good	15.907 \| good	0.361 \| good
2026-10-22T13:00:00.000Z	60 \| moderate	14.15 \| fine	62.574 \| fine	7.944 \| good	0.505 \| good	14.955 \| good	0.34 \| good
2026-10-22T14:00:00.000Z	60 \| moderate	14.061 \| fine	62.629 \| fine	7.955 \| good	0.539 \| good	14.728 \| good	0.36 \| good
2026-10-22T15:00:00.000Z	60 \| moderate	13.88 \| fine	62.703 \| fine	6.948 \| good	0.596 \| good	14.299 \| good	0.421 \| good
2026-10-22T16:00:00.000Z	60 \| moderate	14.074 \| fine	62.768 \| fine	6.972 \| good	0.667 \| good	14.094 \| good	0.522 \| good
2026-10-22T17:00:00.000Z	60 \| moderate	14.096 \| fine	62.844 \| fine	6.971 \| good	0.711 \| good	14.536 \| good	0.483 \| good
2026-10-22T18:00:00.000Z	62 \| moderate	14.88 \| fine	66.798 \| fine	9.015 \| good	0.727 \| good	14.357 \| good	0.359 \| good
2026-10-22T19:00:00.000Z	62 \| moderate	14.882 \| fine	66.822 \| fine	11.13 \| good	0.902 \| good	14.893 \| good	0.34 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.469 \| fine	72.746 \| fine	14.044 \| good	0.678 \| good	12.824 \| good	0.219 \| good
2026-10-22T20:00:00.000Z	64 \| moderate	16.469 \| fine	72.746 \| fine	14.044 \| good	0.678 \| good	12.824 \| good	0.219 \| good
2026-10-22T21:00:00.000Z	77 \| moderate	22.897 \| fine	100.989 \| fine	35.398 \| good	0.308 \| good	4.553 \| good	0.271 \| good
2026-10-22T22:00:00.000Z	75 \| moderate	21.964 \| fine	95.404 \| fine	36.564 \| good	0.341 \| good	5.102 \| good	0.291 \| good
2026-10-22T23:00:00.000Z	79 \| moderate	23.902 \| fine	105.221 \| fine	35.199 \| good	0.378 \| good	6.02 \| good	0.317 \| good
2026-10-23T00:00:00.000Z	84 \| moderate	26.777 \| fine	117.049 \| fine	30.511 \| good	0.392 \| good	6.874 \| good	0.339 \| good
2026-10-23T01:00:00.000Z	86 \| moderate	28.493 \| fine	123.022 \| fine	27.796 \| good	0.376 \| good	7.721 \| good	0.353 \| good
2026-10-23T02:00:00.000Z	90 \| moderate	29.548 \| fine	128.643 \| fine	22.857 \| good	0.361 \| good	8.008 \| good	0.354 \| good
2026-10-23T03:00:00.000Z	73 \| moderate	20.931 \| fine	92.331 \| fine	28.873 \| good	0.363 \| good	7.66 \| good	0.336 \| good
2026-10-23T04:00:00.000Z	33 \| good	5.296 \| good	23.058 \| good	35.88 \| good	0.385 \| good	7.155 \| good	0.309 \| good
2026-10-23T05:00:00.000Z	31 \| good	0.635 \| good	2.16 \| good	34.396 \| good	0.396 \| good	6.414 \| good	0.273 \| good
2026-10-23T06:00:00.000Z	28 \| good	0.439 \| good	2.002 \| good	29.829 \| good	0.397 \| good	5.115 \| good	0.234 \| good
2026-10-23T07:00:00.000Z	26 \| good	0.805 \| good	3.035 \| good	28.021 \| good	0.391 \| good	3.772 \| good	0.202 \| good
2026-10-23T08:00:00.000Z	24 \| good	0.796 \| good	3.035 \| good	26.133 \| good	0.379 \| good	2.799 \| good	0.178 \| good
2026-10-23T09:00:00.000Z	23 \| good	0.571 \| good	2.075 \| good	24.923 \| good	0.368 \| good	2.147 \| good	0.162 \| good
2026-10-23T10:00:00.000Z	21 \| good	0.277 \| good	1.023 \| good	23.26 \| good	0.355 \| good	1.703 \| good	0.152 \| good
2026-10-23T11:00:00.000Z	22 \| good	0.29 \| good	1.023 \| good	24.262 \| good	0.342 \| good	1.441 \| good	0.146 \| good
2026-10-23T12:00:00.000Z	21 \| good	0.321 \| good	1.049 \| good	22.724 \| good	0.334 \| good	1.283 \| good	0.142 \| good
2026-10-23T13:00:00.000Z	23 \| good	0.289 \| good	1.023 \| good	24.545 \| good	0.33 \| good	1.234 \| good	0.141 \| good
2026-10-23T14:00:00.000Z	23 \| good	0.728 \| good	3.032 \| good	24.709 \| good	0.328 \| good	1.363 \| good	0.141 \| good
2026-10-23T15:00:00.000Z	25 \| good	0.456 \| good	2.011 \| good	27.36 \| good	0.326 \| good	1.628 \| good	0.145 \| good
2026-10-23T16:00:00.000Z	30 \| good	0.543 \| good	2.061 \| good	31.669 \| good	0.324 \| good	1.544 \| good	0.149 \| good
2026-10-23T17:00:00.000Z	28 \| good	2.181 \| good	8.978 \| good	29.749 \| good	0.345 \| good	1.097 \| good	0.146 \| good
2026-10-23T18:00:00.000Z	30 \| good	2.634 \| good	10.937 \| good	31.627 \| good	0.371 \| good	0.795 \| good	0.143 \| good
2026-10-23T19:00:00.000Z	32 \| good	1.85 \| good	8.005 \| good	35.089 \| good	0.396 \| good	0.646 \| good	0.142 \| good
2026-10-23T20:00:00.000Z	32 \| good	2.912 \| good	11.98 \| good	35.486 \| good	0.425 \| good	0.584 \| good	0.142 \| good
2026-10-23T21:00:00.000Z	34 \| good	3.142 \| good	13.776 \| good	37.3 \| good	0.443 \| good	0.567 \| good	0.142 \| good
2026-10-23T22:00:00.000Z	39 \| good	2.436 \| good	9.992 \| good	41.667 \| good	0.445 \| good	0.593 \| good	0.143 \| good
2026-10-23T23:00:00.000Z	36 \| good	2.346 \| good	9.907 \| good	39.322 \| good	0.442 \| good	0.671 \| good	0.144 \| good
2026-10-24T00:00:00.000Z	28 \| good	1.706 \| good	6.953 \| good	30.214 \| good	0.433 \| good	0.926 \| good	0.145 \| good
2026-10-24T01:00:00.000Z	21 \| good	0.691 \| good	2.059 \| good	22.61 \| good	0.409 \| good	1.975 \| good	0.154 \| good
2026-10-24T02:00:00.000Z	18 \| good	2.091 \| good	8.063 \| good	19.305 \| good	0.402 \| good	2.967 \| good	0.163 \| good
2026-10-24T03:00:00.000Z	13 \| good	0.567 \| good	2.085 \| good	13.784 \| good	0.398 \| good	3.591 \| good	0.169 \| good
2026-10-24T04:00:00.000Z	14 \| good	0.635 \| good	2.1 \| good	14.803 \| good	0.388 \| good	4.08 \| good	0.173 \| good
2026-10-24T05:00:00.000Z	10 \| good	0.31 \| good	1.039 \| good	11.357 \| good	0.368 \| good	4.441 \| good	0.177 \| good
2026-10-24T06:00:00.000Z	11 \| good	1.548 \| good	6.049 \| good	6.5 \| good	0.338 \| good	4.721 \| good	0.18 \| good
2026-10-24T07:00:00.000Z	11 \| good	1.57 \| good	6.02 \| good	3.719 \| good	0.302 \| good	4.904 \| good	0.183 \| good
2026-10-24T08:00:00.000Z	11 \| good	2.028 \| good	7.996 \| good	8.621 \| good	0.267 \| good	5.013 \| good	0.185 \| good
2026-10-24T09:00:00.000Z	11 \| good	1.66 \| good	6.982 \| good	6.205 \| good	0.235 \| good	5.15 \| good	0.187 \| good
2026-10-24T10:00:00.000Z	11 \| good	2.401 \| good	9.955 \| good	4.001 \| good	0.212 \| good	5.346 \| good	0.19 \| good
2026-10-24T11:00:00.000Z	11 \| good	2.409 \| good	10.009 \| good	5.857 \| good	0.195 \| good	5.584 \| good	0.194 \| good
2026-10-24T12:00:00.000Z	16 \| good	3.247 \| good	13.931 \| good	6.649 \| good	0.181 \| good	5.794 \| good	0.198 \| good
2026-10-24T13:00:00.000Z	16 \| good	3.146 \| good	13.903 \| good	4.652 \| good	0.17 \| good	6.042 \| good	0.201 \| good
2026-10-24T14:00:00.000Z	22 \| good	3.658 \| good	15.98 \| good	3.571 \| good	0.166 \| good	6.466 \| good	0.207 \| good
2026-10-24T15:00:00.000Z	16 \| good	3.345 \| good	14.931 \| good	8.029 \| good	0.172 \| good	5.598 \| good	0.217 \| good
2026-10-24T16:00:00.000Z	22 \| good	3.732 \| good	16.035 \| good	14.361 \| good	0.187 \| good	4.253 \| good	0.224 \| good
2026-10-24T17:00:00.000Z	27 \| good	5.309 \| good	22.909 \| good	15.623 \| good	0.275 \| good	2.921 \| good	0.197 \| good
2026-10-24T18:00:00.000Z	38 \| good	7.079 \| good	31.783 \| good	23.939 \| good	0.378 \| good	1.781 \| good	0.169 \| good
2026-10-24T19:00:00.000Z	33 \| good	5.625 \| good	24.001 \| good	28.522 \| good	0.403 \| good	1.442 \| good	0.159 \| good
2026-10-24T20:00:00.000Z	38 \| good	7.247 \| good	31.906 \| good	29.166 \| good	0.416 \| good	1.253 \| good	0.154 \| good

Hermiston, Oregon live air quality index now

Major air pollutants in Hermiston, Oregon

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Hermiston, Oregon air quality map: Track AQI near you

Air quality in nearby cities

Kennewick, Washington

Pendleton, Oregon

Pasco, Washington

Richland, Washington

West Richland, Washington

Grandview, Washington

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What is the current concentration of PM10 in Hermiston, Oregon?

What is the current concentration of carbon monoxide (CO) in Hermiston, Oregon?

What is the current concentration of sulfur dioxide (SO2) in Hermiston, Oregon?

What is the current concentration of ozone (O3) in Hermiston, Oregon?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Hermiston, Oregon?

What is the current concentration of PM₁₀ in Hermiston, Oregon?

What is the current concentration of sulfur dioxide (SO₂) in Hermiston, Oregon?

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What is the current concentration of nitrogen dioxide (NO₂) in Hermiston, Oregon?