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

The current PM10 concentration at Hermiston, Oregon is 128.452 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Hermiston, Oregon is 1.639 ppb.

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

The current ozone (O3) concentration at Hermiston, Oregon is 43.88 ppm.

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

The current nitrogen dioxide (NO2) concentration at Hermiston, Oregon is 10.295 ppb.

Hermiston, Oregon live air quality index now

Name: Live air pollution levels in Hermiston, Oregon today
Creator: Ambee

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)

29.70 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

128.45 μg/m³

155

255

425

605+

Ozone (O₃)

43.88 ppb

201

201+

Sulfur Dioxide (SO₂)

1.64 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.24 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

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
2025-09-03T22:00:00.000Z	66 \| moderate	16.7 \| fine	74.714 \| fine	54.838 \| good	0.954 \| good	6.332 \| good	0.2 \| good
2025-09-03T23:00:00.000Z	67 \| moderate	18.079 \| fine	80.608 \| fine	59.83 \| fine	1.294 \| good	7.132 \| good	0.181 \| good
2025-09-04T00:00:00.000Z	80 \| moderate	18.907 \| fine	82.547 \| fine	63.835 \| fine	1.07 \| good	8.351 \| good	0.2 \| good
2025-09-04T01:00:00.000Z	77 \| moderate	21.166 \| fine	92.519 \| fine	62.84 \| fine	1.293 \| good	9.901 \| good	0.221 \| good
2025-09-04T02:00:00.000Z	77 \| moderate	22.146 \| fine	96.47 \| fine	62.811 \| fine	0.536 \| good	11.606 \| good	0.241 \| good
2025-09-04T03:00:00.000Z	77 \| moderate	22.835 \| fine	100.356 \| fine	49.982 \| good	1.128 \| good	13.021 \| good	0.261 \| good
2025-09-04T04:00:00.000Z	77 \| moderate	22.862 \| fine	100.439 \| fine	36.227 \| good	1.228 \| good	11.358 \| good	0.242 \| good
2025-09-04T05:00:00.000Z	73 \| moderate	21.429 \| fine	94.64 \| fine	36.219 \| good	0.449 \| good	11.566 \| good	0.259 \| good
2025-09-04T06:00:00.000Z	73 \| moderate	21.426 \| fine	94.789 \| fine	35.172 \| good	0.306 \| good	13.958 \| good	0.259 \| good
2025-09-04T07:00:00.000Z	73 \| moderate	20.918 \| fine	92.555 \| fine	30.142 \| good	0.407 \| good	12.189 \| good	0.238 \| good
2025-09-04T08:00:00.000Z	69 \| moderate	19.297 \| fine	84.801 \| fine	25.185 \| good	0.387 \| good	10.016 \| good	0.219 \| good
2025-09-04T09:00:00.000Z	66 \| moderate	17.329 \| fine	76.872 \| fine	23.15 \| good	0.35 \| good	11.788 \| good	0.158 \| good
2025-09-04T10:00:00.000Z	66 \| moderate	16.803 \| fine	74.891 \| fine	23.099 \| good	0.414 \| good	12.41 \| good	0.158 \| good
2025-09-04T11:00:00.000Z	66 \| moderate	16.534 \| fine	72.788 \| fine	20.131 \| good	0.396 \| good	9.47 \| good	0.177 \| good
2025-09-04T12:00:00.000Z	66 \| moderate	16.517 \| fine	72.758 \| fine	20.134 \| good	0.337 \| good	9.215 \| good	0.177 \| good
2025-09-04T13:00:00.000Z	73 \| moderate	21.3 \| fine	94.292 \| fine	17.95 \| good	0.323 \| good	3.058 \| good	0.21 \| good
2025-09-04T14:00:00.000Z	60 \| moderate	14.141 \| fine	63.015 \| fine	19.964 \| good	0.275 \| good	11.629 \| good	0.179 \| good
2025-09-04T15:00:00.000Z	64 \| moderate	15.606 \| fine	68.965 \| fine	22.008 \| good	0.316 \| good	12.039 \| good	0.14 \| good
2025-09-04T16:00:00.000Z	66 \| moderate	16.771 \| fine	74.708 \| fine	21.011 \| good	0.424 \| good	15.33 \| good	0.22 \| good
2025-09-04T17:00:00.000Z	67 \| moderate	17.877 \| fine	78.949 \| fine	22.966 \| good	1.191 \| good	9.665 \| good	0.237 \| good
2025-09-04T18:00:00.000Z	67 \| moderate	17.977 \| fine	79.185 \| fine	27.96 \| good	1.239 \| good	8.237 \| good	0.217 \| good
2025-09-04T19:00:00.000Z	67 \| moderate	18.205 \| fine	81.188 \| fine	32.932 \| good	2.956 \| good	7.935 \| good	0.219 \| good
2025-09-04T20:00:00.000Z	64 \| moderate	16.371 \| fine	73.042 \| fine	37.933 \| good	2.38 \| good	7.026 \| good	0.22 \| good
2025-09-04T21:00:00.000Z	62 \| moderate	15.143 \| fine	66.978 \| fine	41.886 \| good	1.742 \| good	8.903 \| good	0.221 \| good
2025-09-04T22:00:00.000Z	62 \| moderate	14.757 \| fine	64.928 \| fine	45.883 \| good	1.359 \| good	8.329 \| good	0.261 \| good
2025-09-04T23:00:00.000Z	64 \| moderate	15.519 \| fine	68.798 \| fine	45.927 \| good	1.792 \| good	8.411 \| good	0.3 \| good
2025-09-05T00:00:00.000Z	66 \| moderate	17.081 \| fine	76.64 \| fine	45.967 \| good	1.818 \| good	6.111 \| good	0.24 \| good
2025-09-05T01:00:00.000Z	69 \| moderate	19.143 \| fine	84.611 \| fine	40.056 \| good	3.063 \| good	7.353 \| good	0.24 \| good
2025-09-05T02:00:00.000Z	75 \| moderate	22.168 \| fine	96.507 \| fine	40.031 \| good	1.333 \| good	8.482 \| good	0.26 \| good
2025-09-05T03:00:00.000Z	81 \| moderate	24.623 \| fine	106.444 \| fine	30.057 \| good	1.233 \| good	10.787 \| good	0.239 \| good
2025-09-05T04:00:00.000Z	79 \| moderate	24.254 \| fine	106.4 \| fine	30.081 \| good	0.584 \| good	11.709 \| good	0.28 \| good
2025-09-05T05:00:00.000Z	79 \| moderate	23.532 \| fine	102.663 \| fine	27.045 \| good	0.301 \| good	15.154 \| good	0.318 \| good
2025-09-05T06:00:00.000Z	79 \| moderate	23.804 \| fine	105.049 \| fine	26.024 \| good	0.401 \| good	19.086 \| good	0.355 \| good
2025-09-05T07:00:00.000Z	79 \| moderate	23.743 \| fine	104.507 \| fine	24.058 \| good	0.521 \| good	18.433 \| good	0.257 \| good
2025-09-05T08:00:00.000Z	79 \| moderate	23.822 \| fine	104.348 \| fine	22.106 \| good	0.261 \| good	14.495 \| good	0.217 \| good
2025-09-05T09:00:00.000Z	79 \| moderate	23.801 \| fine	104.404 \| fine	23.078 \| good	0.36 \| good	11.796 \| good	0.159 \| good
2025-09-05T10:00:00.000Z	77 \| moderate	23.392 \| fine	102.298 \| fine	19.081 \| good	0.279 \| good	11.162 \| good	0.159 \| good
2025-09-05T11:00:00.000Z	77 \| moderate	23.408 \| fine	102.267 \| fine	17.055 \| good	0.224 \| good	9.364 \| good	0.14 \| good
2025-09-05T12:00:00.000Z	75 \| moderate	22.037 \| fine	96.508 \| fine	18.062 \| good	0.275 \| good	9.729 \| good	0.178 \| good
2025-09-05T13:00:00.000Z	75 \| moderate	22.06 \| fine	96.43 \| fine	18.942 \| good	0.213 \| good	11.489 \| good	0.178 \| good
2025-09-05T14:00:00.000Z	75 \| moderate	21.759 \| fine	94.564 \| fine	17.925 \| good	0.359 \| good	13.465 \| good	0.238 \| good
2025-09-05T15:00:00.000Z	75 \| moderate	21.59 \| fine	94.475 \| fine	16.9 \| good	0.443 \| good	13.618 \| good	0.278 \| good
2025-09-05T16:00:00.000Z	75 \| moderate	21.862 \| fine	95.15 \| fine	19.871 \| good	0.46 \| good	11.304 \| good	0.24 \| good
2025-09-05T17:00:00.000Z	75 \| moderate	21.97 \| fine	95.084 \| fine	19.887 \| good	1.251 \| good	9.907 \| good	0.22 \| good
2025-09-05T18:00:00.000Z	73 \| moderate	21.257 \| fine	93.003 \| fine	25.887 \| good	1.109 \| good	9.183 \| good	0.219 \| good
2025-09-05T19:00:00.000Z	73 \| moderate	21.196 \| fine	92.958 \| fine	26 \| good	1.167 \| good	9.078 \| good	0.24 \| good
2025-09-05T20:00:00.000Z	77 \| moderate	23.272 \| fine	100.825 \| fine	31.002 \| good	1.818 \| good	9.182 \| good	0.24 \| good
2025-09-05T21:00:00.000Z	90 \| moderate	29.698 \| fine	128.452 \| fine	43.88 \| good	1.639 \| good	10.295 \| good	0.241 \| good
2025-09-05T21:00:00.000Z	90 \| moderate	29.698 \| fine	128.452 \| fine	43.88 \| good	1.639 \| good	10.295 \| good	0.241 \| good
2025-09-05T22:00:00.000Z	87 \| moderate	25.952 \| fine	112.857 \| fine	66.117 \| fine	0.285 \| good	1.118 \| good	0.224 \| good
2025-09-05T23:00:00.000Z	88 \| moderate	28.725 \| fine	124.671 \| fine	66.154 \| fine	0.275 \| good	1.109 \| good	0.221 \| good
2025-09-06T00:00:00.000Z	93 \| moderate	30.007 \| fine	130.616 \| fine	67.751 \| fine	0.265 \| good	1.099 \| good	0.217 \| good
2025-09-06T01:00:00.000Z	105 \| sensitive	36.689 \| moderate	160.431 \| moderate	63.907 \| fine	0.278 \| good	2.869 \| good	0.232 \| good
2025-09-06T02:00:00.000Z	142 \| sensitive	51.939 \| moderate	235.717 \| moderate	55.596 \| fine	0.291 \| good	4.639 \| good	0.247 \| good
2025-09-06T03:00:00.000Z	147 \| sensitive	53.866 \| moderate	245.853 \| moderate	46.531 \| good	0.304 \| good	6.409 \| good	0.262 \| good
2025-09-06T04:00:00.000Z	122 \| sensitive	43.684 \| moderate	194.34 \| moderate	41.991 \| good	0.332 \| good	7.569 \| good	0.274 \| good
2025-09-06T05:00:00.000Z	62 \| moderate	15.02 \| fine	66.922 \| fine	45.422 \| good	0.36 \| good	8.728 \| good	0.285 \| good
2025-09-06T06:00:00.000Z	54 \| moderate	10.864 \| good	47.969 \| good	41.648 \| good	0.388 \| good	9.888 \| good	0.296 \| good
2025-09-06T07:00:00.000Z	58 \| moderate	12.762 \| fine	56.865 \| fine	38.291 \| good	0.359 \| good	9.51 \| good	0.293 \| good
2025-09-06T08:00:00.000Z	56 \| moderate	11.837 \| good	52.116 \| good	32.618 \| good	0.331 \| good	9.131 \| good	0.29 \| good
2025-09-06T09:00:00.000Z	62 \| moderate	15.039 \| fine	66.975 \| fine	31.306 \| good	0.302 \| good	8.752 \| good	0.286 \| good
2025-09-06T10:00:00.000Z	66 \| moderate	16.911 \| fine	74.865 \| fine	28.962 \| good	0.278 \| good	8.46 \| good	0.281 \| good
2025-09-06T11:00:00.000Z	66 \| moderate	17.377 \| fine	76.743 \| fine	29.948 \| good	0.254 \| good	8.169 \| good	0.275 \| good
2025-09-06T12:00:00.000Z	66 \| moderate	16.747 \| fine	74.685 \| fine	29.578 \| good	0.231 \| good	7.877 \| good	0.27 \| good
2025-09-06T13:00:00.000Z	66 \| moderate	16.585 \| fine	72.829 \| fine	28.411 \| good	0.224 \| good	7.172 \| good	0.269 \| good
2025-09-06T14:00:00.000Z	69 \| moderate	18.635 \| fine	82.565 \| fine	25.608 \| good	0.218 \| good	6.467 \| good	0.269 \| good
2025-09-06T15:00:00.000Z	69 \| moderate	18.926 \| fine	84.322 \| fine	26.298 \| good	0.212 \| good	5.762 \| good	0.268 \| good
2025-09-06T16:00:00.000Z	69 \| moderate	18.529 \| fine	82.441 \| fine	28.635 \| good	0.248 \| good	4.559 \| good	0.263 \| good
2025-09-06T17:00:00.000Z	62 \| moderate	15.453 \| fine	68.773 \| fine	34.191 \| good	0.284 \| good	3.356 \| good	0.258 \| good
2025-09-06T18:00:00.000Z	60 \| moderate	13.647 \| fine	60.872 \| fine	39.552 \| good	0.32 \| good	2.153 \| good	0.253 \| good
2025-09-06T19:00:00.000Z	54 \| moderate	11.353 \| good	50.041 \| good	46.165 \| good	0.3 \| good	1.789 \| good	0.241 \| good
2025-09-06T20:00:00.000Z	58 \| moderate	13.174 \| fine	58.978 \| fine	50.299 \| good	0.28 \| good	1.424 \| good	0.229 \| good
2025-09-06T21:00:00.000Z	62 \| moderate	15.189 \| fine	68.838 \| fine	55.991 \| fine	0.26 \| good	1.06 \| good	0.218 \| good
2025-09-06T22:00:00.000Z	66 \| moderate	17.379 \| fine	76.781 \| fine	56.496 \| fine	0.212 \| good	1.141 \| good	0.204 \| good
2025-09-06T23:00:00.000Z	56 \| moderate	12.02 \| good	53.863 \| good	55.158 \| fine	0.165 \| good	1.223 \| good	0.19 \| good
2025-09-07T00:00:00.000Z	58 \| moderate	13.077 \| fine	58.954 \| fine	54.264 \| good	0.118 \| good	1.304 \| good	0.176 \| good
2025-09-07T01:00:00.000Z	62 \| moderate	15.157 \| fine	68.632 \| fine	44.714 \| good	0.126 \| good	2.2 \| good	0.187 \| good
2025-09-07T02:00:00.000Z	62 \| moderate	15.106 \| fine	66.98 \| fine	38.993 \| good	0.133 \| good	3.097 \| good	0.198 \| good
2025-09-07T03:00:00.000Z	62 \| moderate	15.399 \| fine	68.818 \| fine	43.213 \| good	0.141 \| good	3.993 \| good	0.209 \| good
2025-09-07T04:00:00.000Z	64 \| moderate	16.42 \| fine	72.751 \| fine	34.183 \| good	0.151 \| good	4.392 \| good	0.212 \| good
2025-09-07T05:00:00.000Z	62 \| moderate	15.007 \| fine	66.898 \| fine	39.707 \| good	0.161 \| good	4.79 \| good	0.216 \| good
2025-09-07T06:00:00.000Z	62 \| moderate	15.144 \| fine	68.635 \| fine	38.151 \| good	0.171 \| good	5.189 \| good	0.219 \| good
2025-09-07T07:00:00.000Z	58 \| moderate	13.084 \| fine	58.862 \| fine	33.367 \| good	0.165 \| good	4.768 \| good	0.213 \| good
2025-09-07T08:00:00.000Z	52 \| moderate	10.074 \| good	44.93 \| good	30.823 \| good	0.158 \| good	4.348 \| good	0.206 \| good
2025-09-07T09:00:00.000Z	49 \| good	9.114 \| good	40.889 \| good	32.526 \| good	0.151 \| good	3.927 \| good	0.2 \| good
2025-09-07T10:00:00.000Z	44 \| good	8.149 \| good	35.919 \| good	27.454 \| good	0.15 \| good	3.661 \| good	0.195 \| good
2025-09-07T11:00:00.000Z	49 \| good	9.411 \| good	41.895 \| good	28.139 \| good	0.148 \| good	3.395 \| good	0.191 \| good
2025-09-07T12:00:00.000Z	38 \| good	7.203 \| good	31.969 \| good	23.573 \| good	0.147 \| good	3.128 \| good	0.186 \| good
2025-09-07T13:00:00.000Z	49 \| good	9.183 \| good	40.894 \| good	23.789 \| good	0.14 \| good	2.947 \| good	0.186 \| good
2025-09-07T14:00:00.000Z	44 \| good	7.836 \| good	34.051 \| good	21.566 \| good	0.134 \| good	2.765 \| good	0.185 \| good
2025-09-07T15:00:00.000Z	49 \| good	8.931 \| good	38.96 \| good	28.581 \| good	0.128 \| good	2.583 \| good	0.184 \| good
2025-09-07T16:00:00.000Z	54 \| moderate	10.565 \| good	46.817 \| good	39.107 \| good	0.115 \| good	2.01 \| good	0.181 \| good
2025-09-07T17:00:00.000Z	52 \| moderate	10.263 \| good	45.003 \| good	43.741 \| good	0.101 \| good	1.436 \| good	0.177 \| good
2025-09-07T18:00:00.000Z	52 \| moderate	9.523 \| good	42.935 \| good	43.101 \| good	0.088 \| good	0.863 \| good	0.174 \| good
2025-09-07T19:00:00.000Z	42 \| good	6.508 \| good	29.098 \| good	44.69 \| good	0.083 \| good	0.744 \| good	0.168 \| good
2025-09-07T20:00:00.000Z	38 \| good	5.455 \| good	23.219 \| good	41.432 \| good	0.078 \| good	0.625 \| good	0.162 \| good
2025-09-07T21:00:00.000Z	37 \| good	4.557 \| good	20.123 \| good	40.409 \| good	0.073 \| good	0.507 \| good	0.155 \| good

Hermiston

Get reliable air quality data to drive your business

Hermiston, Oregon air quality map: Track AQI near you

0.26ppm

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 2025-09-05.

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 10:00:00 on 2025-09-04.

What is the current air quality in Hermiston, Oregon?

The current air quality in Hermiston, Oregon is 90, 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 29.698 μg/m³.

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

The current PM₁₀ concentration at Hermiston, Oregon is 128.452 μg/m³.

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

The current carbon monoxide (CO) concentration at Hermiston, Oregon is 0.241 ppm.

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

The current sulfur dioxide (SO₂) concentration at Hermiston, Oregon is 1.639 ppb.

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

The current ozone (O₃) concentration at Hermiston, Oregon is 43.88 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Hermiston, Oregon is 10.295 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T22:00:00.000Z	66 \| moderate	16.7 \| fine	74.714 \| fine	54.838 \| good	0.954 \| good	6.332 \| good	0.2 \| good
2025-09-03T23:00:00.000Z	67 \| moderate	18.079 \| fine	80.608 \| fine	59.83 \| fine	1.294 \| good	7.132 \| good	0.181 \| good
2025-09-04T00:00:00.000Z	80 \| moderate	18.907 \| fine	82.547 \| fine	63.835 \| fine	1.07 \| good	8.351 \| good	0.2 \| good
2025-09-04T01:00:00.000Z	77 \| moderate	21.166 \| fine	92.519 \| fine	62.84 \| fine	1.293 \| good	9.901 \| good	0.221 \| good
2025-09-04T02:00:00.000Z	77 \| moderate	22.146 \| fine	96.47 \| fine	62.811 \| fine	0.536 \| good	11.606 \| good	0.241 \| good
2025-09-04T03:00:00.000Z	77 \| moderate	22.835 \| fine	100.356 \| fine	49.982 \| good	1.128 \| good	13.021 \| good	0.261 \| good
2025-09-04T04:00:00.000Z	77 \| moderate	22.862 \| fine	100.439 \| fine	36.227 \| good	1.228 \| good	11.358 \| good	0.242 \| good
2025-09-04T05:00:00.000Z	73 \| moderate	21.429 \| fine	94.64 \| fine	36.219 \| good	0.449 \| good	11.566 \| good	0.259 \| good
2025-09-04T06:00:00.000Z	73 \| moderate	21.426 \| fine	94.789 \| fine	35.172 \| good	0.306 \| good	13.958 \| good	0.259 \| good
2025-09-04T07:00:00.000Z	73 \| moderate	20.918 \| fine	92.555 \| fine	30.142 \| good	0.407 \| good	12.189 \| good	0.238 \| good
2025-09-04T08:00:00.000Z	69 \| moderate	19.297 \| fine	84.801 \| fine	25.185 \| good	0.387 \| good	10.016 \| good	0.219 \| good
2025-09-04T09:00:00.000Z	66 \| moderate	17.329 \| fine	76.872 \| fine	23.15 \| good	0.35 \| good	11.788 \| good	0.158 \| good
2025-09-04T10:00:00.000Z	66 \| moderate	16.803 \| fine	74.891 \| fine	23.099 \| good	0.414 \| good	12.41 \| good	0.158 \| good
2025-09-04T11:00:00.000Z	66 \| moderate	16.534 \| fine	72.788 \| fine	20.131 \| good	0.396 \| good	9.47 \| good	0.177 \| good
2025-09-04T12:00:00.000Z	66 \| moderate	16.517 \| fine	72.758 \| fine	20.134 \| good	0.337 \| good	9.215 \| good	0.177 \| good
2025-09-04T13:00:00.000Z	73 \| moderate	21.3 \| fine	94.292 \| fine	17.95 \| good	0.323 \| good	3.058 \| good	0.21 \| good
2025-09-04T14:00:00.000Z	60 \| moderate	14.141 \| fine	63.015 \| fine	19.964 \| good	0.275 \| good	11.629 \| good	0.179 \| good
2025-09-04T15:00:00.000Z	64 \| moderate	15.606 \| fine	68.965 \| fine	22.008 \| good	0.316 \| good	12.039 \| good	0.14 \| good
2025-09-04T16:00:00.000Z	66 \| moderate	16.771 \| fine	74.708 \| fine	21.011 \| good	0.424 \| good	15.33 \| good	0.22 \| good
2025-09-04T17:00:00.000Z	67 \| moderate	17.877 \| fine	78.949 \| fine	22.966 \| good	1.191 \| good	9.665 \| good	0.237 \| good
2025-09-04T18:00:00.000Z	67 \| moderate	17.977 \| fine	79.185 \| fine	27.96 \| good	1.239 \| good	8.237 \| good	0.217 \| good
2025-09-04T19:00:00.000Z	67 \| moderate	18.205 \| fine	81.188 \| fine	32.932 \| good	2.956 \| good	7.935 \| good	0.219 \| good
2025-09-04T20:00:00.000Z	64 \| moderate	16.371 \| fine	73.042 \| fine	37.933 \| good	2.38 \| good	7.026 \| good	0.22 \| good
2025-09-04T21:00:00.000Z	62 \| moderate	15.143 \| fine	66.978 \| fine	41.886 \| good	1.742 \| good	8.903 \| good	0.221 \| good
2025-09-04T22:00:00.000Z	62 \| moderate	14.757 \| fine	64.928 \| fine	45.883 \| good	1.359 \| good	8.329 \| good	0.261 \| good
2025-09-04T23:00:00.000Z	64 \| moderate	15.519 \| fine	68.798 \| fine	45.927 \| good	1.792 \| good	8.411 \| good	0.3 \| good
2025-09-05T00:00:00.000Z	66 \| moderate	17.081 \| fine	76.64 \| fine	45.967 \| good	1.818 \| good	6.111 \| good	0.24 \| good
2025-09-05T01:00:00.000Z	69 \| moderate	19.143 \| fine	84.611 \| fine	40.056 \| good	3.063 \| good	7.353 \| good	0.24 \| good
2025-09-05T02:00:00.000Z	75 \| moderate	22.168 \| fine	96.507 \| fine	40.031 \| good	1.333 \| good	8.482 \| good	0.26 \| good
2025-09-05T03:00:00.000Z	81 \| moderate	24.623 \| fine	106.444 \| fine	30.057 \| good	1.233 \| good	10.787 \| good	0.239 \| good
2025-09-05T04:00:00.000Z	79 \| moderate	24.254 \| fine	106.4 \| fine	30.081 \| good	0.584 \| good	11.709 \| good	0.28 \| good
2025-09-05T05:00:00.000Z	79 \| moderate	23.532 \| fine	102.663 \| fine	27.045 \| good	0.301 \| good	15.154 \| good	0.318 \| good
2025-09-05T06:00:00.000Z	79 \| moderate	23.804 \| fine	105.049 \| fine	26.024 \| good	0.401 \| good	19.086 \| good	0.355 \| good
2025-09-05T07:00:00.000Z	79 \| moderate	23.743 \| fine	104.507 \| fine	24.058 \| good	0.521 \| good	18.433 \| good	0.257 \| good
2025-09-05T08:00:00.000Z	79 \| moderate	23.822 \| fine	104.348 \| fine	22.106 \| good	0.261 \| good	14.495 \| good	0.217 \| good
2025-09-05T09:00:00.000Z	79 \| moderate	23.801 \| fine	104.404 \| fine	23.078 \| good	0.36 \| good	11.796 \| good	0.159 \| good
2025-09-05T10:00:00.000Z	77 \| moderate	23.392 \| fine	102.298 \| fine	19.081 \| good	0.279 \| good	11.162 \| good	0.159 \| good
2025-09-05T11:00:00.000Z	77 \| moderate	23.408 \| fine	102.267 \| fine	17.055 \| good	0.224 \| good	9.364 \| good	0.14 \| good
2025-09-05T12:00:00.000Z	75 \| moderate	22.037 \| fine	96.508 \| fine	18.062 \| good	0.275 \| good	9.729 \| good	0.178 \| good
2025-09-05T13:00:00.000Z	75 \| moderate	22.06 \| fine	96.43 \| fine	18.942 \| good	0.213 \| good	11.489 \| good	0.178 \| good
2025-09-05T14:00:00.000Z	75 \| moderate	21.759 \| fine	94.564 \| fine	17.925 \| good	0.359 \| good	13.465 \| good	0.238 \| good
2025-09-05T15:00:00.000Z	75 \| moderate	21.59 \| fine	94.475 \| fine	16.9 \| good	0.443 \| good	13.618 \| good	0.278 \| good
2025-09-05T16:00:00.000Z	75 \| moderate	21.862 \| fine	95.15 \| fine	19.871 \| good	0.46 \| good	11.304 \| good	0.24 \| good
2025-09-05T17:00:00.000Z	75 \| moderate	21.97 \| fine	95.084 \| fine	19.887 \| good	1.251 \| good	9.907 \| good	0.22 \| good
2025-09-05T18:00:00.000Z	73 \| moderate	21.257 \| fine	93.003 \| fine	25.887 \| good	1.109 \| good	9.183 \| good	0.219 \| good
2025-09-05T19:00:00.000Z	73 \| moderate	21.196 \| fine	92.958 \| fine	26 \| good	1.167 \| good	9.078 \| good	0.24 \| good
2025-09-05T20:00:00.000Z	77 \| moderate	23.272 \| fine	100.825 \| fine	31.002 \| good	1.818 \| good	9.182 \| good	0.24 \| good
2025-09-05T21:00:00.000Z	90 \| moderate	29.698 \| fine	128.452 \| fine	43.88 \| good	1.639 \| good	10.295 \| good	0.241 \| good
2025-09-05T21:00:00.000Z	90 \| moderate	29.698 \| fine	128.452 \| fine	43.88 \| good	1.639 \| good	10.295 \| good	0.241 \| good
2025-09-05T22:00:00.000Z	87 \| moderate	25.952 \| fine	112.857 \| fine	66.117 \| fine	0.285 \| good	1.118 \| good	0.224 \| good
2025-09-05T23:00:00.000Z	88 \| moderate	28.725 \| fine	124.671 \| fine	66.154 \| fine	0.275 \| good	1.109 \| good	0.221 \| good
2025-09-06T00:00:00.000Z	93 \| moderate	30.007 \| fine	130.616 \| fine	67.751 \| fine	0.265 \| good	1.099 \| good	0.217 \| good
2025-09-06T01:00:00.000Z	105 \| sensitive	36.689 \| moderate	160.431 \| moderate	63.907 \| fine	0.278 \| good	2.869 \| good	0.232 \| good
2025-09-06T02:00:00.000Z	142 \| sensitive	51.939 \| moderate	235.717 \| moderate	55.596 \| fine	0.291 \| good	4.639 \| good	0.247 \| good
2025-09-06T03:00:00.000Z	147 \| sensitive	53.866 \| moderate	245.853 \| moderate	46.531 \| good	0.304 \| good	6.409 \| good	0.262 \| good
2025-09-06T04:00:00.000Z	122 \| sensitive	43.684 \| moderate	194.34 \| moderate	41.991 \| good	0.332 \| good	7.569 \| good	0.274 \| good
2025-09-06T05:00:00.000Z	62 \| moderate	15.02 \| fine	66.922 \| fine	45.422 \| good	0.36 \| good	8.728 \| good	0.285 \| good
2025-09-06T06:00:00.000Z	54 \| moderate	10.864 \| good	47.969 \| good	41.648 \| good	0.388 \| good	9.888 \| good	0.296 \| good
2025-09-06T07:00:00.000Z	58 \| moderate	12.762 \| fine	56.865 \| fine	38.291 \| good	0.359 \| good	9.51 \| good	0.293 \| good
2025-09-06T08:00:00.000Z	56 \| moderate	11.837 \| good	52.116 \| good	32.618 \| good	0.331 \| good	9.131 \| good	0.29 \| good
2025-09-06T09:00:00.000Z	62 \| moderate	15.039 \| fine	66.975 \| fine	31.306 \| good	0.302 \| good	8.752 \| good	0.286 \| good
2025-09-06T10:00:00.000Z	66 \| moderate	16.911 \| fine	74.865 \| fine	28.962 \| good	0.278 \| good	8.46 \| good	0.281 \| good
2025-09-06T11:00:00.000Z	66 \| moderate	17.377 \| fine	76.743 \| fine	29.948 \| good	0.254 \| good	8.169 \| good	0.275 \| good
2025-09-06T12:00:00.000Z	66 \| moderate	16.747 \| fine	74.685 \| fine	29.578 \| good	0.231 \| good	7.877 \| good	0.27 \| good
2025-09-06T13:00:00.000Z	66 \| moderate	16.585 \| fine	72.829 \| fine	28.411 \| good	0.224 \| good	7.172 \| good	0.269 \| good
2025-09-06T14:00:00.000Z	69 \| moderate	18.635 \| fine	82.565 \| fine	25.608 \| good	0.218 \| good	6.467 \| good	0.269 \| good
2025-09-06T15:00:00.000Z	69 \| moderate	18.926 \| fine	84.322 \| fine	26.298 \| good	0.212 \| good	5.762 \| good	0.268 \| good
2025-09-06T16:00:00.000Z	69 \| moderate	18.529 \| fine	82.441 \| fine	28.635 \| good	0.248 \| good	4.559 \| good	0.263 \| good
2025-09-06T17:00:00.000Z	62 \| moderate	15.453 \| fine	68.773 \| fine	34.191 \| good	0.284 \| good	3.356 \| good	0.258 \| good
2025-09-06T18:00:00.000Z	60 \| moderate	13.647 \| fine	60.872 \| fine	39.552 \| good	0.32 \| good	2.153 \| good	0.253 \| good
2025-09-06T19:00:00.000Z	54 \| moderate	11.353 \| good	50.041 \| good	46.165 \| good	0.3 \| good	1.789 \| good	0.241 \| good
2025-09-06T20:00:00.000Z	58 \| moderate	13.174 \| fine	58.978 \| fine	50.299 \| good	0.28 \| good	1.424 \| good	0.229 \| good
2025-09-06T21:00:00.000Z	62 \| moderate	15.189 \| fine	68.838 \| fine	55.991 \| fine	0.26 \| good	1.06 \| good	0.218 \| good
2025-09-06T22:00:00.000Z	66 \| moderate	17.379 \| fine	76.781 \| fine	56.496 \| fine	0.212 \| good	1.141 \| good	0.204 \| good
2025-09-06T23:00:00.000Z	56 \| moderate	12.02 \| good	53.863 \| good	55.158 \| fine	0.165 \| good	1.223 \| good	0.19 \| good
2025-09-07T00:00:00.000Z	58 \| moderate	13.077 \| fine	58.954 \| fine	54.264 \| good	0.118 \| good	1.304 \| good	0.176 \| good
2025-09-07T01:00:00.000Z	62 \| moderate	15.157 \| fine	68.632 \| fine	44.714 \| good	0.126 \| good	2.2 \| good	0.187 \| good
2025-09-07T02:00:00.000Z	62 \| moderate	15.106 \| fine	66.98 \| fine	38.993 \| good	0.133 \| good	3.097 \| good	0.198 \| good
2025-09-07T03:00:00.000Z	62 \| moderate	15.399 \| fine	68.818 \| fine	43.213 \| good	0.141 \| good	3.993 \| good	0.209 \| good
2025-09-07T04:00:00.000Z	64 \| moderate	16.42 \| fine	72.751 \| fine	34.183 \| good	0.151 \| good	4.392 \| good	0.212 \| good
2025-09-07T05:00:00.000Z	62 \| moderate	15.007 \| fine	66.898 \| fine	39.707 \| good	0.161 \| good	4.79 \| good	0.216 \| good
2025-09-07T06:00:00.000Z	62 \| moderate	15.144 \| fine	68.635 \| fine	38.151 \| good	0.171 \| good	5.189 \| good	0.219 \| good
2025-09-07T07:00:00.000Z	58 \| moderate	13.084 \| fine	58.862 \| fine	33.367 \| good	0.165 \| good	4.768 \| good	0.213 \| good
2025-09-07T08:00:00.000Z	52 \| moderate	10.074 \| good	44.93 \| good	30.823 \| good	0.158 \| good	4.348 \| good	0.206 \| good
2025-09-07T09:00:00.000Z	49 \| good	9.114 \| good	40.889 \| good	32.526 \| good	0.151 \| good	3.927 \| good	0.2 \| good
2025-09-07T10:00:00.000Z	44 \| good	8.149 \| good	35.919 \| good	27.454 \| good	0.15 \| good	3.661 \| good	0.195 \| good
2025-09-07T11:00:00.000Z	49 \| good	9.411 \| good	41.895 \| good	28.139 \| good	0.148 \| good	3.395 \| good	0.191 \| good
2025-09-07T12:00:00.000Z	38 \| good	7.203 \| good	31.969 \| good	23.573 \| good	0.147 \| good	3.128 \| good	0.186 \| good
2025-09-07T13:00:00.000Z	49 \| good	9.183 \| good	40.894 \| good	23.789 \| good	0.14 \| good	2.947 \| good	0.186 \| good
2025-09-07T14:00:00.000Z	44 \| good	7.836 \| good	34.051 \| good	21.566 \| good	0.134 \| good	2.765 \| good	0.185 \| good
2025-09-07T15:00:00.000Z	49 \| good	8.931 \| good	38.96 \| good	28.581 \| good	0.128 \| good	2.583 \| good	0.184 \| good
2025-09-07T16:00:00.000Z	54 \| moderate	10.565 \| good	46.817 \| good	39.107 \| good	0.115 \| good	2.01 \| good	0.181 \| good
2025-09-07T17:00:00.000Z	52 \| moderate	10.263 \| good	45.003 \| good	43.741 \| good	0.101 \| good	1.436 \| good	0.177 \| good
2025-09-07T18:00:00.000Z	52 \| moderate	9.523 \| good	42.935 \| good	43.101 \| good	0.088 \| good	0.863 \| good	0.174 \| good
2025-09-07T19:00:00.000Z	42 \| good	6.508 \| good	29.098 \| good	44.69 \| good	0.083 \| good	0.744 \| good	0.168 \| good
2025-09-07T20:00:00.000Z	38 \| good	5.455 \| good	23.219 \| good	41.432 \| good	0.078 \| good	0.625 \| good	0.162 \| good
2025-09-07T21:00:00.000Z	37 \| good	4.557 \| good	20.123 \| good	40.409 \| good	0.073 \| good	0.507 \| good	0.155 \| 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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Frequently asked questions

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

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?

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

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?

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

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