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

The current PM10 concentration at Hermiston, Oregon is 48.8 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Hermiston, Oregon is 0.088 ppb.

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

The current ozone (O3) concentration at Hermiston, Oregon is 31.092 ppm.

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

The current nitrogen dioxide (NO2) concentration at Hermiston, Oregon is 4.231 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 11.015 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)

11.02 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

48.80 μg/m³

155

255

425

605+

Ozone (O₃)

31.09 ppb

201

201+

Sulfur Dioxide (SO₂)

0.09 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.23 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.15 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

High

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
2026-04-22T05:00:00.000Z	34 \| good	2.653 \| good	13.217 \| good	36.889 \| good	2.185 \| good	5.522 \| good	0.204 \| good
2026-04-22T06:00:00.000Z	36 \| good	3.218 \| good	16.808 \| good	38.76 \| good	1.19 \| good	5.518 \| good	0.204 \| good
2026-04-22T07:00:00.000Z	32 \| good	3.658 \| good	16.69 \| good	35.488 \| good	0.947 \| good	7.149 \| good	0.165 \| good
2026-04-22T08:00:00.000Z	38 \| good	4.122 \| good	19.781 \| good	41.15 \| good	0.311 \| good	6.595 \| good	0.165 \| good
2026-04-22T09:00:00.000Z	34 \| good	2.979 \| good	21.463 \| good	37.156 \| good	0.311 \| good	6.459 \| good	0.143 \| good
2026-04-22T10:00:00.000Z	35 \| good	2.01 \| good	11.444 \| good	37.692 \| good	0.454 \| good	6.354 \| good	0.143 \| good
2026-04-22T11:00:00.000Z	35 \| good	3.263 \| good	26.336 \| good	37.842 \| good	0.454 \| good	4.666 \| good	0.121 \| good
2026-04-22T12:00:00.000Z	29 \| good	4.38 \| good	25.366 \| good	30.978 \| good	0.677 \| good	5.325 \| good	0.143 \| good
2026-04-22T13:00:00.000Z	30 \| good	4.2 \| good	19.679 \| good	32.353 \| good	0.592 \| good	5.009 \| good	0.143 \| good
2026-04-22T14:00:00.000Z	31 \| good	4.394 \| good	26.835 \| good	33.496 \| good	3.248 \| good	9.327 \| good	0.143 \| good
2026-04-22T15:00:00.000Z	31 \| good	4.089 \| good	10.198 \| good	32.849 \| good	0.961 \| good	10.413 \| good	0.16 \| good
2026-04-22T16:00:00.000Z	32 \| good	2.466 \| good	15.372 \| good	35.071 \| good	1.332 \| good	10.701 \| good	0.16 \| good
2026-04-22T17:00:00.000Z	31 \| good	3.818 \| good	20.983 \| good	34.107 \| good	2.314 \| good	10.85 \| good	0.177 \| good
2026-04-22T18:00:00.000Z	36 \| good	2.717 \| good	16.149 \| good	38.679 \| good	1.701 \| good	10.589 \| good	0.16 \| good
2026-04-22T19:00:00.000Z	35 \| good	1.843 \| good	10.56 \| good	37.545 \| good	1.413 \| good	8.28 \| good	0.177 \| good
2026-04-22T20:00:00.000Z	36 \| good	2.086 \| good	18.427 \| good	38.638 \| good	0.501 \| good	7.822 \| good	0.16 \| good
2026-04-22T21:00:00.000Z	35 \| good	1.84 \| good	12.401 \| good	38.092 \| good	0.498 \| good	8.274 \| good	0.177 \| good
2026-04-22T22:00:00.000Z	36 \| good	2.036 \| good	13.507 \| good	38.714 \| good	1.13 \| good	7.504 \| good	0.16 \| good
2026-04-22T23:00:00.000Z	34 \| good	2.216 \| good	15.871 \| good	36.519 \| good	1.129 \| good	5.355 \| good	0.138 \| good
2026-04-23T00:00:00.000Z	32 \| good	2.413 \| good	21.801 \| good	34.868 \| good	1.112 \| good	6.509 \| good	0.16 \| good
2026-04-23T01:00:00.000Z	33 \| good	2.324 \| good	13.729 \| good	36.022 \| good	0.5 \| good	5.419 \| good	0.16 \| good
2026-04-23T02:00:00.000Z	35 \| good	3.298 \| good	18.355 \| good	37.632 \| good	0.12 \| good	7.287 \| good	0.181 \| good
2026-04-23T03:00:00.000Z	32 \| good	3.169 \| good	11.943 \| good	34.701 \| good	3.425 \| good	4.833 \| good	0.16 \| good
2026-04-23T04:00:00.000Z	34 \| good	3.19 \| good	11.065 \| good	37.471 \| good	2.593 \| good	4.441 \| good	0.16 \| good
2026-04-23T05:00:00.000Z	31 \| good	3.741 \| good	13.054 \| good	33.658 \| good	0.557 \| good	5.877 \| good	0.16 \| good
2026-04-23T06:00:00.000Z	33 \| good	6.017 \| good	15.874 \| good	34.927 \| good	0.75 \| good	4.783 \| good	0.16 \| good
2026-04-23T07:00:00.000Z	33 \| good	3.74 \| good	8.933 \| good	35.922 \| good	0.778 \| good	7.15 \| good	0.16 \| good
2026-04-23T08:00:00.000Z	33 \| good	1.5 \| good	6.025 \| good	35.931 \| good	1.678 \| good	4.558 \| good	0.138 \| good
2026-04-23T09:00:00.000Z	32 \| good	1.587 \| good	6.959 \| good	34.956 \| good	1.659 \| good	5.861 \| good	0.138 \| good
2026-04-23T10:00:00.000Z	32 \| good	1.688 \| good	6.961 \| good	34.966 \| good	1.246 \| good	4.849 \| good	0.138 \| good
2026-04-23T11:00:00.000Z	32 \| good	1.996 \| good	7.942 \| good	34.954 \| good	1.304 \| good	4.975 \| good	0.138 \| good
2026-04-23T12:00:00.000Z	32 \| good	2.092 \| good	8.948 \| good	34.974 \| good	0.755 \| good	6.099 \| good	0.138 \| good
2026-04-23T13:00:00.000Z	32 \| good	2.093 \| good	8.958 \| good	34.956 \| good	0.735 \| good	5.916 \| good	0.138 \| good
2026-04-23T14:00:00.000Z	32 \| good	2.193 \| good	8.974 \| good	34.982 \| good	0.391 \| good	9.379 \| good	0.156 \| good
2026-04-23T15:00:00.000Z	32 \| good	2.294 \| good	9.951 \| good	34.971 \| good	1.741 \| good	9.116 \| good	0.178 \| good
2026-04-23T16:00:00.000Z	32 \| good	2.496 \| good	10.141 \| good	34.996 \| good	6.284 \| good	8.75 \| good	0.221 \| good
2026-04-23T17:00:00.000Z	33 \| good	2.799 \| good	12.018 \| good	36.002 \| good	0.901 \| good	7.22 \| good	0.199 \| good
2026-04-23T18:00:00.000Z	34 \| good	2.993 \| good	11.982 \| good	37 \| good	0.498 \| good	5.842 \| good	0.177 \| good
2026-04-23T19:00:00.000Z	35 \| good	2.986 \| good	11.972 \| good	37.99 \| good	0.1 \| good	6.688 \| good	0.177 \| good
2026-04-23T20:00:00.000Z	37 \| good	2.89 \| good	11.963 \| good	39.988 \| good	0.54 \| good	6.516 \| good	0.199 \| good
2026-04-23T21:00:00.000Z	38 \| good	2.907 \| good	11.97 \| good	40.983 \| good	0.119 \| good	8.688 \| good	0.199 \| good
2026-04-23T22:00:00.000Z	38 \| good	2.797 \| good	11.95 \| good	40.994 \| good	0.1 \| good	6.066 \| good	0.199 \| good
2026-04-23T23:00:00.000Z	39 \| good	2.802 \| good	11.952 \| good	41.99 \| good	0.1 \| good	5.214 \| good	0.219 \| good
2026-04-24T00:00:00.000Z	39 \| good	2.789 \| good	11.955 \| good	41.998 \| good	0.141 \| good	5.537 \| good	0.199 \| good
2026-04-24T01:00:00.000Z	39 \| good	2.806 \| good	11.977 \| good	41.988 \| good	0.311 \| good	3.285 \| good	0.199 \| good
2026-04-24T02:00:00.000Z	38 \| good	2.789 \| good	12.028 \| good	40.972 \| good	0.725 \| good	2.787 \| good	0.199 \| good
2026-04-24T03:00:00.000Z	54 \| moderate	11.015 \| good	48.8 \| good	31.092 \| good	0.088 \| good	4.231 \| good	0.151 \| good
2026-04-24T04:00:00.000Z	32 \| good	3.098 \| good	13.967 \| good	35.014 \| good	0.333 \| good	6.35 \| good	0.219 \| good
2026-04-24T04:00:00.000Z	54 \| moderate	11.015 \| good	48.8 \| good	31.092 \| good	0.088 \| good	4.231 \| good	0.151 \| good
2026-04-24T05:00:00.000Z	52 \| moderate	9.952 \| good	44.548 \| good	39.547 \| good	0.125 \| good	4.223 \| good	0.152 \| good
2026-04-24T06:00:00.000Z	52 \| moderate	9.583 \| good	42.599 \| good	36.707 \| good	0.141 \| good	4.628 \| good	0.154 \| good
2026-04-24T07:00:00.000Z	52 \| moderate	10.08 \| good	44.582 \| good	38.921 \| good	0.16 \| good	4.487 \| good	0.152 \| good
2026-04-24T08:00:00.000Z	52 \| moderate	9.548 \| good	42.584 \| good	34.481 \| good	0.178 \| good	4.345 \| good	0.149 \| good
2026-04-24T09:00:00.000Z	52 \| moderate	9.716 \| good	43.532 \| good	29.07 \| good	0.197 \| good	4.204 \| good	0.147 \| good
2026-04-24T10:00:00.000Z	54 \| moderate	10.902 \| good	47.659 \| good	28.44 \| good	0.211 \| good	3.563 \| good	0.14 \| good
2026-04-24T11:00:00.000Z	52 \| moderate	10.163 \| good	44.635 \| good	27.316 \| good	0.225 \| good	2.923 \| good	0.134 \| good
2026-04-24T12:00:00.000Z	52 \| moderate	10.322 \| good	45.633 \| good	28.548 \| good	0.24 \| good	2.282 \| good	0.127 \| good
2026-04-24T13:00:00.000Z	56 \| moderate	11.669 \| good	51.542 \| good	30.055 \| good	0.235 \| good	2.138 \| good	0.127 \| good
2026-04-24T14:00:00.000Z	52 \| moderate	10.1 \| good	44.649 \| good	30.396 \| good	0.231 \| good	1.994 \| good	0.126 \| good
2026-04-24T15:00:00.000Z	52 \| moderate	10.252 \| good	45.536 \| good	31.07 \| good	0.226 \| good	1.85 \| good	0.126 \| good
2026-04-24T16:00:00.000Z	52 \| moderate	10.183 \| good	44.664 \| good	31.417 \| good	0.266 \| good	1.479 \| good	0.124 \| good
2026-04-24T17:00:00.000Z	52 \| moderate	9.637 \| good	42.601 \| good	36.025 \| good	0.306 \| good	1.108 \| good	0.123 \| good
2026-04-24T18:00:00.000Z	49 \| good	8.538 \| good	37.663 \| good	38.452 \| good	0.346 \| good	0.737 \| good	0.121 \| good
2026-04-24T19:00:00.000Z	38 \| good	6.68 \| good	29.732 \| good	40.638 \| good	0.345 \| good	0.609 \| good	0.12 \| good
2026-04-24T20:00:00.000Z	40 \| good	6.896 \| good	30.636 \| good	42.803 \| good	0.344 \| good	0.48 \| good	0.119 \| good
2026-04-24T21:00:00.000Z	41 \| good	7.23 \| good	31.742 \| good	44.358 \| good	0.343 \| good	0.352 \| good	0.117 \| good
2026-04-24T22:00:00.000Z	44 \| good	7.625 \| good	33.728 \| good	46.458 \| good	0.321 \| good	0.375 \| good	0.117 \| good
2026-04-24T23:00:00.000Z	44 \| good	7.617 \| good	33.728 \| good	44.268 \| good	0.299 \| good	0.398 \| good	0.116 \| good
2026-04-25T00:00:00.000Z	43 \| good	7.302 \| good	31.766 \| good	45.813 \| good	0.277 \| good	0.421 \| good	0.115 \| good
2026-04-25T01:00:00.000Z	40 \| good	7.252 \| good	31.764 \| good	42.79 \| good	0.267 \| good	1.405 \| good	0.122 \| good
2026-04-25T02:00:00.000Z	56 \| moderate	11.514 \| good	50.613 \| good	42.732 \| good	0.256 \| good	2.39 \| good	0.129 \| good
2026-04-25T03:00:00.000Z	56 \| moderate	11.785 \| good	51.651 \| good	34.298 \| good	0.246 \| good	3.374 \| good	0.135 \| good
2026-04-25T04:00:00.000Z	56 \| moderate	11.898 \| good	53.453 \| good	17.898 \| good	0.26 \| good	4.701 \| good	0.144 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	10.77 \| good	47.63 \| good	14.077 \| good	0.274 \| good	6.028 \| good	0.152 \| good
2026-04-25T06:00:00.000Z	49 \| good	9.402 \| good	41.66 \| good	24.552 \| good	0.288 \| good	7.356 \| good	0.161 \| good
2026-04-25T07:00:00.000Z	52 \| moderate	10.291 \| good	45.627 \| good	19.851 \| good	0.275 \| good	7.569 \| good	0.161 \| good
2026-04-25T08:00:00.000Z	54 \| moderate	11.206 \| good	49.549 \| good	20.799 \| good	0.261 \| good	7.783 \| good	0.161 \| good
2026-04-25T09:00:00.000Z	52 \| moderate	9.799 \| good	43.646 \| good	15.569 \| good	0.248 \| good	7.997 \| good	0.162 \| good
2026-04-25T10:00:00.000Z	49 \| good	8.94 \| good	40.483 \| good	13.05 \| good	0.234 \| good	7.589 \| good	0.157 \| good
2026-04-25T11:00:00.000Z	49 \| good	8.995 \| good	40.509 \| good	13.945 \| good	0.22 \| good	7.181 \| good	0.152 \| good
2026-04-25T12:00:00.000Z	52 \| moderate	10.006 \| good	44.535 \| good	13.351 \| good	0.207 \| good	6.773 \| good	0.147 \| good
2026-04-25T13:00:00.000Z	56 \| moderate	12.279 \| fine	56.193 \| fine	12.774 \| good	0.191 \| good	5.89 \| good	0.148 \| good
2026-04-25T14:00:00.000Z	58 \| moderate	13.367 \| fine	60.353 \| fine	17.504 \| good	0.176 \| good	5.006 \| good	0.149 \| good
2026-04-25T15:00:00.000Z	56 \| moderate	12.47 \| fine	56.33 \| fine	21.624 \| good	0.161 \| good	4.123 \| good	0.15 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	12.783 \| fine	58.278 \| fine	27.292 \| good	0.216 \| good	3.401 \| good	0.144 \| good
2026-04-25T17:00:00.000Z	56 \| moderate	12.264 \| fine	54.54 \| good	34.918 \| good	0.272 \| good	2.68 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	56 \| moderate	12.199 \| fine	54.375 \| good	41.777 \| good	0.327 \| good	1.958 \| good	0.132 \| good
2026-04-25T19:00:00.000Z	54 \| moderate	11.06 \| good	48.546 \| good	47.5 \| good	0.301 \| good	1.518 \| good	0.128 \| good
2026-04-25T20:00:00.000Z	54 \| moderate	10.664 \| good	47.478 \| good	51.305 \| good	0.276 \| good	1.077 \| good	0.124 \| good
2026-04-25T21:00:00.000Z	52 \| moderate	10.014 \| good	44.559 \| good	49.701 \| good	0.251 \| good	0.637 \| good	0.12 \| good
2026-04-25T22:00:00.000Z	52 \| moderate	10.069 \| good	44.628 \| good	49.609 \| good	0.24 \| good	0.611 \| good	0.118 \| good
2026-04-25T23:00:00.000Z	52 \| moderate	9.725 \| good	43.565 \| good	46.744 \| good	0.229 \| good	0.585 \| good	0.117 \| good
2026-04-26T00:00:00.000Z	71 \| moderate	2.419 \| good	2.965 \| good	60.536 \| fine	0.218 \| good	0.56 \| good	0.116 \| good
2026-04-26T01:00:00.000Z	52 \| moderate	10.132 \| good	44.631 \| good	53.231 \| good	0.221 \| good	1.692 \| good	0.124 \| good
2026-04-26T02:00:00.000Z	56 \| moderate	12.327 \| fine	56.433 \| fine	51.358 \| good	0.223 \| good	2.825 \| good	0.132 \| good
2026-04-26T03:00:00.000Z	54 \| moderate	11.403 \| good	50.616 \| good	44.328 \| good	0.225 \| good	3.958 \| good	0.139 \| good
2026-04-26T04:00:00.000Z	58 \| moderate	12.516 \| fine	56.533 \| fine	37.134 \| good	0.238 \| good	5.238 \| good	0.148 \| good

Hermiston

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Hermiston, Oregon air quality map: Track AQI near you

0.14ppm

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 2026-04-24.

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 05:00:00 on 2026-04-23.

What is the current air quality in Hermiston, Oregon?

The current air quality in Hermiston, Oregon is 54, 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 11.015 μg/m³.

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

The current PM₁₀ concentration at Hermiston, Oregon is 48.8 μg/m³.

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

The current carbon monoxide (CO) concentration at Hermiston, Oregon is 0.151 ppm.

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

The current sulfur dioxide (SO₂) concentration at Hermiston, Oregon is 0.088 ppb.

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

The current ozone (O₃) concentration at Hermiston, Oregon is 31.092 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Hermiston, Oregon is 4.231 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T05:00:00.000Z	34 \| good	2.653 \| good	13.217 \| good	36.889 \| good	2.185 \| good	5.522 \| good	0.204 \| good
2026-04-22T06:00:00.000Z	36 \| good	3.218 \| good	16.808 \| good	38.76 \| good	1.19 \| good	5.518 \| good	0.204 \| good
2026-04-22T07:00:00.000Z	32 \| good	3.658 \| good	16.69 \| good	35.488 \| good	0.947 \| good	7.149 \| good	0.165 \| good
2026-04-22T08:00:00.000Z	38 \| good	4.122 \| good	19.781 \| good	41.15 \| good	0.311 \| good	6.595 \| good	0.165 \| good
2026-04-22T09:00:00.000Z	34 \| good	2.979 \| good	21.463 \| good	37.156 \| good	0.311 \| good	6.459 \| good	0.143 \| good
2026-04-22T10:00:00.000Z	35 \| good	2.01 \| good	11.444 \| good	37.692 \| good	0.454 \| good	6.354 \| good	0.143 \| good
2026-04-22T11:00:00.000Z	35 \| good	3.263 \| good	26.336 \| good	37.842 \| good	0.454 \| good	4.666 \| good	0.121 \| good
2026-04-22T12:00:00.000Z	29 \| good	4.38 \| good	25.366 \| good	30.978 \| good	0.677 \| good	5.325 \| good	0.143 \| good
2026-04-22T13:00:00.000Z	30 \| good	4.2 \| good	19.679 \| good	32.353 \| good	0.592 \| good	5.009 \| good	0.143 \| good
2026-04-22T14:00:00.000Z	31 \| good	4.394 \| good	26.835 \| good	33.496 \| good	3.248 \| good	9.327 \| good	0.143 \| good
2026-04-22T15:00:00.000Z	31 \| good	4.089 \| good	10.198 \| good	32.849 \| good	0.961 \| good	10.413 \| good	0.16 \| good
2026-04-22T16:00:00.000Z	32 \| good	2.466 \| good	15.372 \| good	35.071 \| good	1.332 \| good	10.701 \| good	0.16 \| good
2026-04-22T17:00:00.000Z	31 \| good	3.818 \| good	20.983 \| good	34.107 \| good	2.314 \| good	10.85 \| good	0.177 \| good
2026-04-22T18:00:00.000Z	36 \| good	2.717 \| good	16.149 \| good	38.679 \| good	1.701 \| good	10.589 \| good	0.16 \| good
2026-04-22T19:00:00.000Z	35 \| good	1.843 \| good	10.56 \| good	37.545 \| good	1.413 \| good	8.28 \| good	0.177 \| good
2026-04-22T20:00:00.000Z	36 \| good	2.086 \| good	18.427 \| good	38.638 \| good	0.501 \| good	7.822 \| good	0.16 \| good
2026-04-22T21:00:00.000Z	35 \| good	1.84 \| good	12.401 \| good	38.092 \| good	0.498 \| good	8.274 \| good	0.177 \| good
2026-04-22T22:00:00.000Z	36 \| good	2.036 \| good	13.507 \| good	38.714 \| good	1.13 \| good	7.504 \| good	0.16 \| good
2026-04-22T23:00:00.000Z	34 \| good	2.216 \| good	15.871 \| good	36.519 \| good	1.129 \| good	5.355 \| good	0.138 \| good
2026-04-23T00:00:00.000Z	32 \| good	2.413 \| good	21.801 \| good	34.868 \| good	1.112 \| good	6.509 \| good	0.16 \| good
2026-04-23T01:00:00.000Z	33 \| good	2.324 \| good	13.729 \| good	36.022 \| good	0.5 \| good	5.419 \| good	0.16 \| good
2026-04-23T02:00:00.000Z	35 \| good	3.298 \| good	18.355 \| good	37.632 \| good	0.12 \| good	7.287 \| good	0.181 \| good
2026-04-23T03:00:00.000Z	32 \| good	3.169 \| good	11.943 \| good	34.701 \| good	3.425 \| good	4.833 \| good	0.16 \| good
2026-04-23T04:00:00.000Z	34 \| good	3.19 \| good	11.065 \| good	37.471 \| good	2.593 \| good	4.441 \| good	0.16 \| good
2026-04-23T05:00:00.000Z	31 \| good	3.741 \| good	13.054 \| good	33.658 \| good	0.557 \| good	5.877 \| good	0.16 \| good
2026-04-23T06:00:00.000Z	33 \| good	6.017 \| good	15.874 \| good	34.927 \| good	0.75 \| good	4.783 \| good	0.16 \| good
2026-04-23T07:00:00.000Z	33 \| good	3.74 \| good	8.933 \| good	35.922 \| good	0.778 \| good	7.15 \| good	0.16 \| good
2026-04-23T08:00:00.000Z	33 \| good	1.5 \| good	6.025 \| good	35.931 \| good	1.678 \| good	4.558 \| good	0.138 \| good
2026-04-23T09:00:00.000Z	32 \| good	1.587 \| good	6.959 \| good	34.956 \| good	1.659 \| good	5.861 \| good	0.138 \| good
2026-04-23T10:00:00.000Z	32 \| good	1.688 \| good	6.961 \| good	34.966 \| good	1.246 \| good	4.849 \| good	0.138 \| good
2026-04-23T11:00:00.000Z	32 \| good	1.996 \| good	7.942 \| good	34.954 \| good	1.304 \| good	4.975 \| good	0.138 \| good
2026-04-23T12:00:00.000Z	32 \| good	2.092 \| good	8.948 \| good	34.974 \| good	0.755 \| good	6.099 \| good	0.138 \| good
2026-04-23T13:00:00.000Z	32 \| good	2.093 \| good	8.958 \| good	34.956 \| good	0.735 \| good	5.916 \| good	0.138 \| good
2026-04-23T14:00:00.000Z	32 \| good	2.193 \| good	8.974 \| good	34.982 \| good	0.391 \| good	9.379 \| good	0.156 \| good
2026-04-23T15:00:00.000Z	32 \| good	2.294 \| good	9.951 \| good	34.971 \| good	1.741 \| good	9.116 \| good	0.178 \| good
2026-04-23T16:00:00.000Z	32 \| good	2.496 \| good	10.141 \| good	34.996 \| good	6.284 \| good	8.75 \| good	0.221 \| good
2026-04-23T17:00:00.000Z	33 \| good	2.799 \| good	12.018 \| good	36.002 \| good	0.901 \| good	7.22 \| good	0.199 \| good
2026-04-23T18:00:00.000Z	34 \| good	2.993 \| good	11.982 \| good	37 \| good	0.498 \| good	5.842 \| good	0.177 \| good
2026-04-23T19:00:00.000Z	35 \| good	2.986 \| good	11.972 \| good	37.99 \| good	0.1 \| good	6.688 \| good	0.177 \| good
2026-04-23T20:00:00.000Z	37 \| good	2.89 \| good	11.963 \| good	39.988 \| good	0.54 \| good	6.516 \| good	0.199 \| good
2026-04-23T21:00:00.000Z	38 \| good	2.907 \| good	11.97 \| good	40.983 \| good	0.119 \| good	8.688 \| good	0.199 \| good
2026-04-23T22:00:00.000Z	38 \| good	2.797 \| good	11.95 \| good	40.994 \| good	0.1 \| good	6.066 \| good	0.199 \| good
2026-04-23T23:00:00.000Z	39 \| good	2.802 \| good	11.952 \| good	41.99 \| good	0.1 \| good	5.214 \| good	0.219 \| good
2026-04-24T00:00:00.000Z	39 \| good	2.789 \| good	11.955 \| good	41.998 \| good	0.141 \| good	5.537 \| good	0.199 \| good
2026-04-24T01:00:00.000Z	39 \| good	2.806 \| good	11.977 \| good	41.988 \| good	0.311 \| good	3.285 \| good	0.199 \| good
2026-04-24T02:00:00.000Z	38 \| good	2.789 \| good	12.028 \| good	40.972 \| good	0.725 \| good	2.787 \| good	0.199 \| good
2026-04-24T03:00:00.000Z	54 \| moderate	11.015 \| good	48.8 \| good	31.092 \| good	0.088 \| good	4.231 \| good	0.151 \| good
2026-04-24T04:00:00.000Z	32 \| good	3.098 \| good	13.967 \| good	35.014 \| good	0.333 \| good	6.35 \| good	0.219 \| good
2026-04-24T04:00:00.000Z	54 \| moderate	11.015 \| good	48.8 \| good	31.092 \| good	0.088 \| good	4.231 \| good	0.151 \| good
2026-04-24T05:00:00.000Z	52 \| moderate	9.952 \| good	44.548 \| good	39.547 \| good	0.125 \| good	4.223 \| good	0.152 \| good
2026-04-24T06:00:00.000Z	52 \| moderate	9.583 \| good	42.599 \| good	36.707 \| good	0.141 \| good	4.628 \| good	0.154 \| good
2026-04-24T07:00:00.000Z	52 \| moderate	10.08 \| good	44.582 \| good	38.921 \| good	0.16 \| good	4.487 \| good	0.152 \| good
2026-04-24T08:00:00.000Z	52 \| moderate	9.548 \| good	42.584 \| good	34.481 \| good	0.178 \| good	4.345 \| good	0.149 \| good
2026-04-24T09:00:00.000Z	52 \| moderate	9.716 \| good	43.532 \| good	29.07 \| good	0.197 \| good	4.204 \| good	0.147 \| good
2026-04-24T10:00:00.000Z	54 \| moderate	10.902 \| good	47.659 \| good	28.44 \| good	0.211 \| good	3.563 \| good	0.14 \| good
2026-04-24T11:00:00.000Z	52 \| moderate	10.163 \| good	44.635 \| good	27.316 \| good	0.225 \| good	2.923 \| good	0.134 \| good
2026-04-24T12:00:00.000Z	52 \| moderate	10.322 \| good	45.633 \| good	28.548 \| good	0.24 \| good	2.282 \| good	0.127 \| good
2026-04-24T13:00:00.000Z	56 \| moderate	11.669 \| good	51.542 \| good	30.055 \| good	0.235 \| good	2.138 \| good	0.127 \| good
2026-04-24T14:00:00.000Z	52 \| moderate	10.1 \| good	44.649 \| good	30.396 \| good	0.231 \| good	1.994 \| good	0.126 \| good
2026-04-24T15:00:00.000Z	52 \| moderate	10.252 \| good	45.536 \| good	31.07 \| good	0.226 \| good	1.85 \| good	0.126 \| good
2026-04-24T16:00:00.000Z	52 \| moderate	10.183 \| good	44.664 \| good	31.417 \| good	0.266 \| good	1.479 \| good	0.124 \| good
2026-04-24T17:00:00.000Z	52 \| moderate	9.637 \| good	42.601 \| good	36.025 \| good	0.306 \| good	1.108 \| good	0.123 \| good
2026-04-24T18:00:00.000Z	49 \| good	8.538 \| good	37.663 \| good	38.452 \| good	0.346 \| good	0.737 \| good	0.121 \| good
2026-04-24T19:00:00.000Z	38 \| good	6.68 \| good	29.732 \| good	40.638 \| good	0.345 \| good	0.609 \| good	0.12 \| good
2026-04-24T20:00:00.000Z	40 \| good	6.896 \| good	30.636 \| good	42.803 \| good	0.344 \| good	0.48 \| good	0.119 \| good
2026-04-24T21:00:00.000Z	41 \| good	7.23 \| good	31.742 \| good	44.358 \| good	0.343 \| good	0.352 \| good	0.117 \| good
2026-04-24T22:00:00.000Z	44 \| good	7.625 \| good	33.728 \| good	46.458 \| good	0.321 \| good	0.375 \| good	0.117 \| good
2026-04-24T23:00:00.000Z	44 \| good	7.617 \| good	33.728 \| good	44.268 \| good	0.299 \| good	0.398 \| good	0.116 \| good
2026-04-25T00:00:00.000Z	43 \| good	7.302 \| good	31.766 \| good	45.813 \| good	0.277 \| good	0.421 \| good	0.115 \| good
2026-04-25T01:00:00.000Z	40 \| good	7.252 \| good	31.764 \| good	42.79 \| good	0.267 \| good	1.405 \| good	0.122 \| good
2026-04-25T02:00:00.000Z	56 \| moderate	11.514 \| good	50.613 \| good	42.732 \| good	0.256 \| good	2.39 \| good	0.129 \| good
2026-04-25T03:00:00.000Z	56 \| moderate	11.785 \| good	51.651 \| good	34.298 \| good	0.246 \| good	3.374 \| good	0.135 \| good
2026-04-25T04:00:00.000Z	56 \| moderate	11.898 \| good	53.453 \| good	17.898 \| good	0.26 \| good	4.701 \| good	0.144 \| good
2026-04-25T05:00:00.000Z	54 \| moderate	10.77 \| good	47.63 \| good	14.077 \| good	0.274 \| good	6.028 \| good	0.152 \| good
2026-04-25T06:00:00.000Z	49 \| good	9.402 \| good	41.66 \| good	24.552 \| good	0.288 \| good	7.356 \| good	0.161 \| good
2026-04-25T07:00:00.000Z	52 \| moderate	10.291 \| good	45.627 \| good	19.851 \| good	0.275 \| good	7.569 \| good	0.161 \| good
2026-04-25T08:00:00.000Z	54 \| moderate	11.206 \| good	49.549 \| good	20.799 \| good	0.261 \| good	7.783 \| good	0.161 \| good
2026-04-25T09:00:00.000Z	52 \| moderate	9.799 \| good	43.646 \| good	15.569 \| good	0.248 \| good	7.997 \| good	0.162 \| good
2026-04-25T10:00:00.000Z	49 \| good	8.94 \| good	40.483 \| good	13.05 \| good	0.234 \| good	7.589 \| good	0.157 \| good
2026-04-25T11:00:00.000Z	49 \| good	8.995 \| good	40.509 \| good	13.945 \| good	0.22 \| good	7.181 \| good	0.152 \| good
2026-04-25T12:00:00.000Z	52 \| moderate	10.006 \| good	44.535 \| good	13.351 \| good	0.207 \| good	6.773 \| good	0.147 \| good
2026-04-25T13:00:00.000Z	56 \| moderate	12.279 \| fine	56.193 \| fine	12.774 \| good	0.191 \| good	5.89 \| good	0.148 \| good
2026-04-25T14:00:00.000Z	58 \| moderate	13.367 \| fine	60.353 \| fine	17.504 \| good	0.176 \| good	5.006 \| good	0.149 \| good
2026-04-25T15:00:00.000Z	56 \| moderate	12.47 \| fine	56.33 \| fine	21.624 \| good	0.161 \| good	4.123 \| good	0.15 \| good
2026-04-25T16:00:00.000Z	58 \| moderate	12.783 \| fine	58.278 \| fine	27.292 \| good	0.216 \| good	3.401 \| good	0.144 \| good
2026-04-25T17:00:00.000Z	56 \| moderate	12.264 \| fine	54.54 \| good	34.918 \| good	0.272 \| good	2.68 \| good	0.138 \| good
2026-04-25T18:00:00.000Z	56 \| moderate	12.199 \| fine	54.375 \| good	41.777 \| good	0.327 \| good	1.958 \| good	0.132 \| good
2026-04-25T19:00:00.000Z	54 \| moderate	11.06 \| good	48.546 \| good	47.5 \| good	0.301 \| good	1.518 \| good	0.128 \| good
2026-04-25T20:00:00.000Z	54 \| moderate	10.664 \| good	47.478 \| good	51.305 \| good	0.276 \| good	1.077 \| good	0.124 \| good
2026-04-25T21:00:00.000Z	52 \| moderate	10.014 \| good	44.559 \| good	49.701 \| good	0.251 \| good	0.637 \| good	0.12 \| good
2026-04-25T22:00:00.000Z	52 \| moderate	10.069 \| good	44.628 \| good	49.609 \| good	0.24 \| good	0.611 \| good	0.118 \| good
2026-04-25T23:00:00.000Z	52 \| moderate	9.725 \| good	43.565 \| good	46.744 \| good	0.229 \| good	0.585 \| good	0.117 \| good
2026-04-26T00:00:00.000Z	71 \| moderate	2.419 \| good	2.965 \| good	60.536 \| fine	0.218 \| good	0.56 \| good	0.116 \| good
2026-04-26T01:00:00.000Z	52 \| moderate	10.132 \| good	44.631 \| good	53.231 \| good	0.221 \| good	1.692 \| good	0.124 \| good
2026-04-26T02:00:00.000Z	56 \| moderate	12.327 \| fine	56.433 \| fine	51.358 \| good	0.223 \| good	2.825 \| good	0.132 \| good
2026-04-26T03:00:00.000Z	54 \| moderate	11.403 \| good	50.616 \| good	44.328 \| good	0.225 \| good	3.958 \| good	0.139 \| good
2026-04-26T04:00:00.000Z	58 \| moderate	12.516 \| fine	56.533 \| fine	37.134 \| good	0.238 \| good	5.238 \| good	0.148 \| 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 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?