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

The current PM10 concentration at Hermiston, Oregon is 29.077 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Hermiston, Oregon is 0.481 ppb.

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

The current ozone (O3) concentration at Hermiston, Oregon is 15.648 ppm.

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

The current nitrogen dioxide (NO2) concentration at Hermiston, Oregon is 3.475 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)

Good

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)

6.46 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

23.76 μg/m³

155

255

425

605+

Ozone (O₃)

14.08 ppb

201

201+

Sulfur Dioxide (SO₂)

0.41 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.12 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
2025-07-20T13:00:00.000Z	49 \| good	9.255 \| good	34.695 \| good	28.387 \| good	0.829 \| good	2.575 \| good	0.1 \| good
2025-07-20T14:00:00.000Z	44 \| good	8.446 \| good	24.928 \| good	30.013 \| good	1.077 \| good	2.791 \| good	0.1 \| good
2025-07-20T15:00:00.000Z	53 \| moderate	8.148 \| good	59.41 \| fine	25.012 \| good	1.63 \| good	2.483 \| good	0.1 \| good
2025-07-20T16:00:00.000Z	44 \| good	7.866 \| good	32.729 \| good	27.018 \| good	1.798 \| good	3.407 \| good	0.1 \| good
2025-07-20T17:00:00.000Z	38 \| good	6.641 \| good	21.13 \| good	24.734 \| good	1.756 \| good	2.872 \| good	0.1 \| good
2025-07-20T18:00:00.000Z	33 \| good	5.447 \| good	19.668 \| good	36.017 \| good	4.582 \| good	4.679 \| good	0.121 \| good
2025-07-20T19:00:00.000Z	34 \| good	3.622 \| good	13.433 \| good	37.105 \| good	2.028 \| good	3.598 \| good	0.1 \| good
2025-07-20T20:00:00.000Z	33 \| good	3.879 \| good	10.691 \| good	36.447 \| good	2.829 \| good	3.154 \| good	0.1 \| good
2025-07-20T21:00:00.000Z	32 \| good	4.666 \| good	11.677 \| good	35.002 \| good	0.808 \| good	3.308 \| good	0.121 \| good
2025-07-20T22:00:00.000Z	29 \| good	3.676 \| good	11.905 \| good	31.229 \| good	2.125 \| good	3.961 \| good	0.121 \| good
2025-07-20T23:00:00.000Z	34 \| good	3.717 \| good	19.453 \| good	36.75 \| good	3.113 \| good	4.035 \| good	0.118 \| good
2025-07-21T00:00:00.000Z	38 \| good	5.411 \| good	18.958 \| good	41.182 \| good	1.688 \| good	3.918 \| good	0.118 \| good
2025-07-21T01:00:00.000Z	40 \| good	5.639 \| good	21.737 \| good	43.254 \| good	1.246 \| good	5.269 \| good	0.118 \| good
2025-07-21T02:00:00.000Z	37 \| good	4.689 \| good	15.072 \| good	40.459 \| good	1.145 \| good	5.7 \| good	0.118 \| good
2025-07-21T03:00:00.000Z	44 \| good	8.117 \| good	23.155 \| good	37.516 \| good	0.683 \| good	7.068 \| good	0.141 \| good
2025-07-21T04:00:00.000Z	52 \| moderate	9.594 \| good	22.648 \| good	32.038 \| good	0.662 \| good	7.706 \| good	0.141 \| good
2025-07-21T05:00:00.000Z	38 \| good	6.519 \| good	20.77 \| good	28.834 \| good	0.785 \| good	7.775 \| good	0.141 \| good
2025-07-21T06:00:00.000Z	33 \| good	5.67 \| good	16.859 \| good	26.115 \| good	0.927 \| good	8.974 \| good	0.16 \| good
2025-07-21T07:00:00.000Z	60 \| moderate	14.138 \| fine	73.231 \| fine	22.309 \| good	1.049 \| good	6.408 \| good	0.121 \| good
2025-07-21T08:00:00.000Z	44 \| good	8.391 \| good	25.165 \| good	23.241 \| good	0.625 \| good	7.654 \| good	0.121 \| good
2025-07-21T09:00:00.000Z	38 \| good	7.318 \| good	27.155 \| good	24.653 \| good	0.59 \| good	7.955 \| good	0.1 \| good
2025-07-21T10:00:00.000Z	38 \| good	6.838 \| good	25.68 \| good	23.254 \| good	0.464 \| good	4.085 \| good	0.121 \| good
2025-07-21T11:00:00.000Z	33 \| good	5.84 \| good	22.705 \| good	21.886 \| good	0.403 \| good	3.507 \| good	0.121 \| good
2025-07-21T12:00:00.000Z	27 \| good	5.45 \| good	18.58 \| good	22.111 \| good	0.403 \| good	2.776 \| good	0.1 \| good
2025-07-21T13:00:00.000Z	33 \| good	6.175 \| good	19.039 \| good	18.236 \| good	0.461 \| good	3.538 \| good	0.1 \| good
2025-07-21T14:00:00.000Z	38 \| good	7.321 \| good	15.881 \| good	25.231 \| good	0.525 \| good	3.078 \| good	0.1 \| good
2025-07-21T15:00:00.000Z	58 \| moderate	12.988 \| fine	42.124 \| good	30.541 \| good	1.02 \| good	4.438 \| good	0.121 \| good
2025-07-21T16:00:00.000Z	60 \| moderate	13.908 \| fine	46.752 \| good	17.681 \| good	1.658 \| good	4.028 \| good	0.121 \| good
2025-07-21T17:00:00.000Z	66 \| moderate	17.016 \| fine	42.562 \| good	19.33 \| good	2.069 \| good	4.852 \| good	0.139 \| good
2025-07-21T18:00:00.000Z	71 \| moderate	20.096 \| fine	61.874 \| fine	18.945 \| good	1.378 \| good	4.675 \| good	0.121 \| good
2025-07-21T19:00:00.000Z	66 \| moderate	16.786 \| fine	34.224 \| good	26.772 \| good	2.166 \| good	4.293 \| good	0.139 \| good
2025-07-21T20:00:00.000Z	58 \| moderate	12.674 \| fine	31.618 \| good	32.262 \| good	2.082 \| good	5.591 \| good	0.159 \| good
2025-07-21T21:00:00.000Z	58 \| moderate	13.02 \| fine	40.166 \| good	29.836 \| good	2.583 \| good	4.593 \| good	0.138 \| good
2025-07-21T22:00:00.000Z	54 \| moderate	11.346 \| good	29.821 \| good	40.221 \| good	0.988 \| good	4.897 \| good	0.121 \| good
2025-07-21T23:00:00.000Z	52 \| moderate	9.849 \| good	29.992 \| good	34.879 \| good	2.168 \| good	4.951 \| good	0.141 \| good
2025-07-22T00:00:00.000Z	44 \| good	8.012 \| good	26.631 \| good	27.868 \| good	3.036 \| good	4.62 \| good	0.121 \| good
2025-07-22T01:00:00.000Z	32 \| good	5.089 \| good	23.915 \| good	34.518 \| good	1.043 \| good	4.744 \| good	0.141 \| good
2025-07-22T02:00:00.000Z	33 \| good	5.238 \| good	21.908 \| good	35.991 \| good	1.145 \| good	4.343 \| good	0.121 \| good
2025-07-22T03:00:00.000Z	34 \| good	5.763 \| good	25.053 \| good	37.102 \| good	0.06 \| good	1.248 \| good	0.108 \| good
2025-07-22T04:00:00.000Z	36 \| good	5.702 \| good	25.14 \| good	39.083 \| good	0.624 \| good	2.87 \| good	0.1 \| good
2025-07-22T05:00:00.000Z	33 \| good	6.062 \| good	17.699 \| good	30.886 \| good	0.581 \| good	4.115 \| good	0.138 \| good
2025-07-22T06:00:00.000Z	33 \| good	5.689 \| good	17.958 \| good	27.825 \| good	0.613 \| good	4.161 \| good	0.118 \| good
2025-07-22T07:00:00.000Z	38 \| good	6.683 \| good	27.638 \| good	25.005 \| good	0.604 \| good	5.319 \| good	0.138 \| good
2025-07-22T08:00:00.000Z	27 \| good	5.486 \| good	25.207 \| good	22.296 \| good	0.462 \| good	3.847 \| good	0.118 \| good
2025-07-22T09:00:00.000Z	33 \| good	5.768 \| good	23.123 \| good	17.064 \| good	0.495 \| good	3.287 \| good	0.1 \| good
2025-07-22T10:00:00.000Z	38 \| good	6.639 \| good	29.077 \| good	15.648 \| good	0.481 \| good	3.475 \| good	0.118 \| good
2025-07-22T11:00:00.000Z	38 \| good	6.982 \| good	33.537 \| good	12.449 \| good	0.397 \| good	2.542 \| good	0.118 \| good
2025-07-22T12:00:00.000Z	33 \| good	6.455 \| good	23.764 \| good	14.078 \| good	0.407 \| good	4.295 \| good	0.118 \| good
2025-07-22T12:00:00.000Z	33 \| good	6.455 \| good	23.764 \| good	14.078 \| good	0.407 \| good	4.295 \| good	0.118 \| good
2025-07-22T11:00:00.000Z	22 \| good	4.25 \| good	18.94 \| good	11.725 \| good	0.164 \| good	5.511 \| good	0.16 \| good
2025-07-22T12:00:00.000Z	22 \| good	3.505 \| good	15.93 \| good	13.254 \| good	0.162 \| good	5.618 \| good	0.165 \| good
2025-07-22T13:00:00.000Z	27 \| good	4.835 \| good	20.878 \| good	13.148 \| good	0.155 \| good	4.469 \| good	0.162 \| good
2025-07-22T14:00:00.000Z	33 \| good	6.208 \| good	27.781 \| good	20.974 \| good	0.149 \| good	3.32 \| good	0.159 \| good
2025-07-22T15:00:00.000Z	33 \| good	5.603 \| good	23.931 \| good	27.953 \| good	0.143 \| good	2.17 \| good	0.155 \| good
2025-07-22T16:00:00.000Z	31 \| good	5.038 \| good	21.938 \| good	34.486 \| good	0.125 \| good	1.711 \| good	0.147 \| good
2025-07-22T17:00:00.000Z	35 \| good	4.62 \| good	20.01 \| good	38.094 \| good	0.107 \| good	1.252 \| good	0.139 \| good
2025-07-22T18:00:00.000Z	38 \| good	4.425 \| good	19.02 \| good	40.998 \| good	0.089 \| good	0.793 \| good	0.131 \| good
2025-07-22T19:00:00.000Z	39 \| good	4.585 \| good	20.02 \| good	42.094 \| good	0.081 \| good	0.696 \| good	0.127 \| good
2025-07-22T20:00:00.000Z	41 \| good	4.904 \| good	21.008 \| good	44.256 \| good	0.073 \| good	0.6 \| good	0.123 \| good
2025-07-22T21:00:00.000Z	42 \| good	4.732 \| good	20.963 \| good	44.949 \| good	0.065 \| good	0.503 \| good	0.118 \| good
2025-07-22T22:00:00.000Z	44 \| good	4.465 \| good	19.018 \| good	46.794 \| good	0.061 \| good	0.524 \| good	0.117 \| good
2025-07-22T23:00:00.000Z	45 \| good	4.539 \| good	19.976 \| good	48.959 \| good	0.057 \| good	0.546 \| good	0.116 \| good
2025-07-23T00:00:00.000Z	45 \| good	4.372 \| good	19 \| good	48.701 \| good	0.053 \| good	0.567 \| good	0.114 \| good
2025-07-23T01:00:00.000Z	47 \| good	4.573 \| good	19.986 \| good	50.979 \| good	0.053 \| good	0.796 \| good	0.116 \| good
2025-07-23T02:00:00.000Z	49 \| good	2.824 \| good	11.192 \| good	53.149 \| good	0.054 \| good	1.026 \| good	0.118 \| good
2025-07-23T03:00:00.000Z	40 \| good	7.495 \| good	32.906 \| good	42.776 \| good	0.055 \| good	1.255 \| good	0.12 \| good
2025-07-23T04:00:00.000Z	52 \| moderate	10.124 \| good	44.798 \| good	34.318 \| good	0.071 \| good	2.486 \| good	0.13 \| good
2025-07-23T05:00:00.000Z	33 \| good	6.423 \| good	28.931 \| good	27.852 \| good	0.087 \| good	3.716 \| good	0.14 \| good
2025-07-23T06:00:00.000Z	27 \| good	5.116 \| good	21.997 \| good	25.888 \| good	0.103 \| good	4.947 \| good	0.149 \| good
2025-07-23T07:00:00.000Z	44 \| good	7.684 \| good	33.876 \| good	25.741 \| good	0.11 \| good	5.722 \| good	0.159 \| good
2025-07-23T08:00:00.000Z	33 \| good	5.927 \| good	26.843 \| good	28.606 \| good	0.117 \| good	6.497 \| good	0.169 \| good
2025-07-23T09:00:00.000Z	27 \| good	4.803 \| good	20.959 \| good	24.182 \| good	0.125 \| good	7.272 \| good	0.179 \| good
2025-07-23T10:00:00.000Z	27 \| good	4.783 \| good	20.86 \| good	21.415 \| good	0.123 \| good	7.226 \| good	0.182 \| good
2025-07-23T11:00:00.000Z	38 \| good	6.855 \| good	29.973 \| good	13.593 \| good	0.122 \| good	7.179 \| good	0.185 \| good
2025-07-23T12:00:00.000Z	33 \| good	5.892 \| good	26.73 \| good	15.869 \| good	0.121 \| good	7.133 \| good	0.187 \| good
2025-07-23T13:00:00.000Z	27 \| good	5.184 \| good	22.863 \| good	14.888 \| good	0.127 \| good	5.881 \| good	0.185 \| good
2025-07-23T14:00:00.000Z	27 \| good	5.194 \| good	22.844 \| good	22.835 \| good	0.134 \| good	4.63 \| good	0.182 \| good
2025-07-23T15:00:00.000Z	38 \| good	6.696 \| good	29.903 \| good	28.904 \| good	0.141 \| good	3.378 \| good	0.18 \| good
2025-07-23T16:00:00.000Z	33 \| good	5.988 \| good	26.843 \| good	35.033 \| good	0.139 \| good	2.608 \| good	0.169 \| good
2025-07-23T17:00:00.000Z	34 \| good	4.52 \| good	19.956 \| good	37.204 \| good	0.138 \| good	1.838 \| good	0.158 \| good
2025-07-23T18:00:00.000Z	35 \| good	3.93 \| good	17.083 \| good	38.485 \| good	0.136 \| good	1.068 \| good	0.147 \| good
2025-07-23T19:00:00.000Z	38 \| good	3.496 \| good	15.083 \| good	41.07 \| good	0.119 \| good	0.892 \| good	0.143 \| good
2025-07-23T20:00:00.000Z	43 \| good	3.709 \| good	16.083 \| good	46.289 \| good	0.101 \| good	0.716 \| good	0.14 \| good
2025-07-23T21:00:00.000Z	42 \| good	4.03 \| good	18 \| good	45.397 \| good	0.084 \| good	0.54 \| good	0.136 \| good
2025-07-23T22:00:00.000Z	44 \| good	4.357 \| good	19.02 \| good	47.402 \| good	0.077 \| good	0.547 \| good	0.135 \| good
2025-07-23T23:00:00.000Z	47 \| good	4.842 \| good	21 \| good	51.002 \| good	0.07 \| good	0.555 \| good	0.134 \| good
2025-07-24T00:00:00.000Z	44 \| good	4.483 \| good	18.989 \| good	47.821 \| good	0.062 \| good	0.562 \| good	0.132 \| good
2025-07-24T01:00:00.000Z	44 \| good	3.544 \| good	16.024 \| good	46.751 \| good	0.062 \| good	0.791 \| good	0.134 \| good
2025-07-24T02:00:00.000Z	42 \| good	1.186 \| good	5.204 \| good	45.009 \| good	0.061 \| good	1.021 \| good	0.135 \| good
2025-07-24T03:00:00.000Z	35 \| good	5.467 \| good	23.134 \| good	37.539 \| good	0.061 \| good	1.25 \| good	0.136 \| good
2025-07-24T04:00:00.000Z	49 \| good	8.766 \| good	38.784 \| good	35.577 \| good	0.08 \| good	2.287 \| good	0.147 \| good
2025-07-24T05:00:00.000Z	33 \| good	6.071 \| good	26.925 \| good	30.071 \| good	0.1 \| good	3.324 \| good	0.157 \| good
2025-07-24T06:00:00.000Z	44 \| good	7.59 \| good	7.741 \| good	43.044 \| good	0.118 \| good	4.353 \| good	0.168 \| good
2025-07-24T07:00:00.000Z	44 \| good	8.318 \| good	36.942 \| good	31.056 \| good	0.124 \| good	4.317 \| good	0.172 \| good
2025-07-24T08:00:00.000Z	34 \| good	6.388 \| good	28.925 \| good	37.194 \| good	0.13 \| good	4.273 \| good	0.177 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.146 \| good	22.07 \| good	36.267 \| good	0.135 \| good	4.229 \| good	0.181 \| good
2025-07-24T10:00:00.000Z	34 \| good	5.605 \| good	24.04 \| good	37.079 \| good	0.139 \| good	3.879 \| good	0.176 \| good

Hermiston

Get reliable air quality data to drive your business

Hermiston, Oregon air quality map: Track AQI near you

0.11ppm

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

Air quality levels in US

Check live rankings of places in the USA affected by air pollution.

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

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 06:00:00 on 2025-07-21.

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 2025-07-22.

What is the current air quality in Hermiston, Oregon?

The current air quality in Hermiston, Oregon is 38, categorized as Good 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 6.639 μg/m³.

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

The current PM₁₀ concentration at Hermiston, Oregon is 29.077 μg/m³.

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

The current carbon monoxide (CO) concentration at Hermiston, Oregon is 0.118 ppm.

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

The current sulfur dioxide (SO₂) concentration at Hermiston, Oregon is 0.481 ppb.

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

The current ozone (O₃) concentration at Hermiston, Oregon is 15.648 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Hermiston, Oregon is 3.475 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-07-20T13:00:00.000Z	49 \| good	9.255 \| good	34.695 \| good	28.387 \| good	0.829 \| good	2.575 \| good	0.1 \| good
2025-07-20T14:00:00.000Z	44 \| good	8.446 \| good	24.928 \| good	30.013 \| good	1.077 \| good	2.791 \| good	0.1 \| good
2025-07-20T15:00:00.000Z	53 \| moderate	8.148 \| good	59.41 \| fine	25.012 \| good	1.63 \| good	2.483 \| good	0.1 \| good
2025-07-20T16:00:00.000Z	44 \| good	7.866 \| good	32.729 \| good	27.018 \| good	1.798 \| good	3.407 \| good	0.1 \| good
2025-07-20T17:00:00.000Z	38 \| good	6.641 \| good	21.13 \| good	24.734 \| good	1.756 \| good	2.872 \| good	0.1 \| good
2025-07-20T18:00:00.000Z	33 \| good	5.447 \| good	19.668 \| good	36.017 \| good	4.582 \| good	4.679 \| good	0.121 \| good
2025-07-20T19:00:00.000Z	34 \| good	3.622 \| good	13.433 \| good	37.105 \| good	2.028 \| good	3.598 \| good	0.1 \| good
2025-07-20T20:00:00.000Z	33 \| good	3.879 \| good	10.691 \| good	36.447 \| good	2.829 \| good	3.154 \| good	0.1 \| good
2025-07-20T21:00:00.000Z	32 \| good	4.666 \| good	11.677 \| good	35.002 \| good	0.808 \| good	3.308 \| good	0.121 \| good
2025-07-20T22:00:00.000Z	29 \| good	3.676 \| good	11.905 \| good	31.229 \| good	2.125 \| good	3.961 \| good	0.121 \| good
2025-07-20T23:00:00.000Z	34 \| good	3.717 \| good	19.453 \| good	36.75 \| good	3.113 \| good	4.035 \| good	0.118 \| good
2025-07-21T00:00:00.000Z	38 \| good	5.411 \| good	18.958 \| good	41.182 \| good	1.688 \| good	3.918 \| good	0.118 \| good
2025-07-21T01:00:00.000Z	40 \| good	5.639 \| good	21.737 \| good	43.254 \| good	1.246 \| good	5.269 \| good	0.118 \| good
2025-07-21T02:00:00.000Z	37 \| good	4.689 \| good	15.072 \| good	40.459 \| good	1.145 \| good	5.7 \| good	0.118 \| good
2025-07-21T03:00:00.000Z	44 \| good	8.117 \| good	23.155 \| good	37.516 \| good	0.683 \| good	7.068 \| good	0.141 \| good
2025-07-21T04:00:00.000Z	52 \| moderate	9.594 \| good	22.648 \| good	32.038 \| good	0.662 \| good	7.706 \| good	0.141 \| good
2025-07-21T05:00:00.000Z	38 \| good	6.519 \| good	20.77 \| good	28.834 \| good	0.785 \| good	7.775 \| good	0.141 \| good
2025-07-21T06:00:00.000Z	33 \| good	5.67 \| good	16.859 \| good	26.115 \| good	0.927 \| good	8.974 \| good	0.16 \| good
2025-07-21T07:00:00.000Z	60 \| moderate	14.138 \| fine	73.231 \| fine	22.309 \| good	1.049 \| good	6.408 \| good	0.121 \| good
2025-07-21T08:00:00.000Z	44 \| good	8.391 \| good	25.165 \| good	23.241 \| good	0.625 \| good	7.654 \| good	0.121 \| good
2025-07-21T09:00:00.000Z	38 \| good	7.318 \| good	27.155 \| good	24.653 \| good	0.59 \| good	7.955 \| good	0.1 \| good
2025-07-21T10:00:00.000Z	38 \| good	6.838 \| good	25.68 \| good	23.254 \| good	0.464 \| good	4.085 \| good	0.121 \| good
2025-07-21T11:00:00.000Z	33 \| good	5.84 \| good	22.705 \| good	21.886 \| good	0.403 \| good	3.507 \| good	0.121 \| good
2025-07-21T12:00:00.000Z	27 \| good	5.45 \| good	18.58 \| good	22.111 \| good	0.403 \| good	2.776 \| good	0.1 \| good
2025-07-21T13:00:00.000Z	33 \| good	6.175 \| good	19.039 \| good	18.236 \| good	0.461 \| good	3.538 \| good	0.1 \| good
2025-07-21T14:00:00.000Z	38 \| good	7.321 \| good	15.881 \| good	25.231 \| good	0.525 \| good	3.078 \| good	0.1 \| good
2025-07-21T15:00:00.000Z	58 \| moderate	12.988 \| fine	42.124 \| good	30.541 \| good	1.02 \| good	4.438 \| good	0.121 \| good
2025-07-21T16:00:00.000Z	60 \| moderate	13.908 \| fine	46.752 \| good	17.681 \| good	1.658 \| good	4.028 \| good	0.121 \| good
2025-07-21T17:00:00.000Z	66 \| moderate	17.016 \| fine	42.562 \| good	19.33 \| good	2.069 \| good	4.852 \| good	0.139 \| good
2025-07-21T18:00:00.000Z	71 \| moderate	20.096 \| fine	61.874 \| fine	18.945 \| good	1.378 \| good	4.675 \| good	0.121 \| good
2025-07-21T19:00:00.000Z	66 \| moderate	16.786 \| fine	34.224 \| good	26.772 \| good	2.166 \| good	4.293 \| good	0.139 \| good
2025-07-21T20:00:00.000Z	58 \| moderate	12.674 \| fine	31.618 \| good	32.262 \| good	2.082 \| good	5.591 \| good	0.159 \| good
2025-07-21T21:00:00.000Z	58 \| moderate	13.02 \| fine	40.166 \| good	29.836 \| good	2.583 \| good	4.593 \| good	0.138 \| good
2025-07-21T22:00:00.000Z	54 \| moderate	11.346 \| good	29.821 \| good	40.221 \| good	0.988 \| good	4.897 \| good	0.121 \| good
2025-07-21T23:00:00.000Z	52 \| moderate	9.849 \| good	29.992 \| good	34.879 \| good	2.168 \| good	4.951 \| good	0.141 \| good
2025-07-22T00:00:00.000Z	44 \| good	8.012 \| good	26.631 \| good	27.868 \| good	3.036 \| good	4.62 \| good	0.121 \| good
2025-07-22T01:00:00.000Z	32 \| good	5.089 \| good	23.915 \| good	34.518 \| good	1.043 \| good	4.744 \| good	0.141 \| good
2025-07-22T02:00:00.000Z	33 \| good	5.238 \| good	21.908 \| good	35.991 \| good	1.145 \| good	4.343 \| good	0.121 \| good
2025-07-22T03:00:00.000Z	34 \| good	5.763 \| good	25.053 \| good	37.102 \| good	0.06 \| good	1.248 \| good	0.108 \| good
2025-07-22T04:00:00.000Z	36 \| good	5.702 \| good	25.14 \| good	39.083 \| good	0.624 \| good	2.87 \| good	0.1 \| good
2025-07-22T05:00:00.000Z	33 \| good	6.062 \| good	17.699 \| good	30.886 \| good	0.581 \| good	4.115 \| good	0.138 \| good
2025-07-22T06:00:00.000Z	33 \| good	5.689 \| good	17.958 \| good	27.825 \| good	0.613 \| good	4.161 \| good	0.118 \| good
2025-07-22T07:00:00.000Z	38 \| good	6.683 \| good	27.638 \| good	25.005 \| good	0.604 \| good	5.319 \| good	0.138 \| good
2025-07-22T08:00:00.000Z	27 \| good	5.486 \| good	25.207 \| good	22.296 \| good	0.462 \| good	3.847 \| good	0.118 \| good
2025-07-22T09:00:00.000Z	33 \| good	5.768 \| good	23.123 \| good	17.064 \| good	0.495 \| good	3.287 \| good	0.1 \| good
2025-07-22T10:00:00.000Z	38 \| good	6.639 \| good	29.077 \| good	15.648 \| good	0.481 \| good	3.475 \| good	0.118 \| good
2025-07-22T11:00:00.000Z	38 \| good	6.982 \| good	33.537 \| good	12.449 \| good	0.397 \| good	2.542 \| good	0.118 \| good
2025-07-22T12:00:00.000Z	33 \| good	6.455 \| good	23.764 \| good	14.078 \| good	0.407 \| good	4.295 \| good	0.118 \| good
2025-07-22T12:00:00.000Z	33 \| good	6.455 \| good	23.764 \| good	14.078 \| good	0.407 \| good	4.295 \| good	0.118 \| good
2025-07-22T11:00:00.000Z	22 \| good	4.25 \| good	18.94 \| good	11.725 \| good	0.164 \| good	5.511 \| good	0.16 \| good
2025-07-22T12:00:00.000Z	22 \| good	3.505 \| good	15.93 \| good	13.254 \| good	0.162 \| good	5.618 \| good	0.165 \| good
2025-07-22T13:00:00.000Z	27 \| good	4.835 \| good	20.878 \| good	13.148 \| good	0.155 \| good	4.469 \| good	0.162 \| good
2025-07-22T14:00:00.000Z	33 \| good	6.208 \| good	27.781 \| good	20.974 \| good	0.149 \| good	3.32 \| good	0.159 \| good
2025-07-22T15:00:00.000Z	33 \| good	5.603 \| good	23.931 \| good	27.953 \| good	0.143 \| good	2.17 \| good	0.155 \| good
2025-07-22T16:00:00.000Z	31 \| good	5.038 \| good	21.938 \| good	34.486 \| good	0.125 \| good	1.711 \| good	0.147 \| good
2025-07-22T17:00:00.000Z	35 \| good	4.62 \| good	20.01 \| good	38.094 \| good	0.107 \| good	1.252 \| good	0.139 \| good
2025-07-22T18:00:00.000Z	38 \| good	4.425 \| good	19.02 \| good	40.998 \| good	0.089 \| good	0.793 \| good	0.131 \| good
2025-07-22T19:00:00.000Z	39 \| good	4.585 \| good	20.02 \| good	42.094 \| good	0.081 \| good	0.696 \| good	0.127 \| good
2025-07-22T20:00:00.000Z	41 \| good	4.904 \| good	21.008 \| good	44.256 \| good	0.073 \| good	0.6 \| good	0.123 \| good
2025-07-22T21:00:00.000Z	42 \| good	4.732 \| good	20.963 \| good	44.949 \| good	0.065 \| good	0.503 \| good	0.118 \| good
2025-07-22T22:00:00.000Z	44 \| good	4.465 \| good	19.018 \| good	46.794 \| good	0.061 \| good	0.524 \| good	0.117 \| good
2025-07-22T23:00:00.000Z	45 \| good	4.539 \| good	19.976 \| good	48.959 \| good	0.057 \| good	0.546 \| good	0.116 \| good
2025-07-23T00:00:00.000Z	45 \| good	4.372 \| good	19 \| good	48.701 \| good	0.053 \| good	0.567 \| good	0.114 \| good
2025-07-23T01:00:00.000Z	47 \| good	4.573 \| good	19.986 \| good	50.979 \| good	0.053 \| good	0.796 \| good	0.116 \| good
2025-07-23T02:00:00.000Z	49 \| good	2.824 \| good	11.192 \| good	53.149 \| good	0.054 \| good	1.026 \| good	0.118 \| good
2025-07-23T03:00:00.000Z	40 \| good	7.495 \| good	32.906 \| good	42.776 \| good	0.055 \| good	1.255 \| good	0.12 \| good
2025-07-23T04:00:00.000Z	52 \| moderate	10.124 \| good	44.798 \| good	34.318 \| good	0.071 \| good	2.486 \| good	0.13 \| good
2025-07-23T05:00:00.000Z	33 \| good	6.423 \| good	28.931 \| good	27.852 \| good	0.087 \| good	3.716 \| good	0.14 \| good
2025-07-23T06:00:00.000Z	27 \| good	5.116 \| good	21.997 \| good	25.888 \| good	0.103 \| good	4.947 \| good	0.149 \| good
2025-07-23T07:00:00.000Z	44 \| good	7.684 \| good	33.876 \| good	25.741 \| good	0.11 \| good	5.722 \| good	0.159 \| good
2025-07-23T08:00:00.000Z	33 \| good	5.927 \| good	26.843 \| good	28.606 \| good	0.117 \| good	6.497 \| good	0.169 \| good
2025-07-23T09:00:00.000Z	27 \| good	4.803 \| good	20.959 \| good	24.182 \| good	0.125 \| good	7.272 \| good	0.179 \| good
2025-07-23T10:00:00.000Z	27 \| good	4.783 \| good	20.86 \| good	21.415 \| good	0.123 \| good	7.226 \| good	0.182 \| good
2025-07-23T11:00:00.000Z	38 \| good	6.855 \| good	29.973 \| good	13.593 \| good	0.122 \| good	7.179 \| good	0.185 \| good
2025-07-23T12:00:00.000Z	33 \| good	5.892 \| good	26.73 \| good	15.869 \| good	0.121 \| good	7.133 \| good	0.187 \| good
2025-07-23T13:00:00.000Z	27 \| good	5.184 \| good	22.863 \| good	14.888 \| good	0.127 \| good	5.881 \| good	0.185 \| good
2025-07-23T14:00:00.000Z	27 \| good	5.194 \| good	22.844 \| good	22.835 \| good	0.134 \| good	4.63 \| good	0.182 \| good
2025-07-23T15:00:00.000Z	38 \| good	6.696 \| good	29.903 \| good	28.904 \| good	0.141 \| good	3.378 \| good	0.18 \| good
2025-07-23T16:00:00.000Z	33 \| good	5.988 \| good	26.843 \| good	35.033 \| good	0.139 \| good	2.608 \| good	0.169 \| good
2025-07-23T17:00:00.000Z	34 \| good	4.52 \| good	19.956 \| good	37.204 \| good	0.138 \| good	1.838 \| good	0.158 \| good
2025-07-23T18:00:00.000Z	35 \| good	3.93 \| good	17.083 \| good	38.485 \| good	0.136 \| good	1.068 \| good	0.147 \| good
2025-07-23T19:00:00.000Z	38 \| good	3.496 \| good	15.083 \| good	41.07 \| good	0.119 \| good	0.892 \| good	0.143 \| good
2025-07-23T20:00:00.000Z	43 \| good	3.709 \| good	16.083 \| good	46.289 \| good	0.101 \| good	0.716 \| good	0.14 \| good
2025-07-23T21:00:00.000Z	42 \| good	4.03 \| good	18 \| good	45.397 \| good	0.084 \| good	0.54 \| good	0.136 \| good
2025-07-23T22:00:00.000Z	44 \| good	4.357 \| good	19.02 \| good	47.402 \| good	0.077 \| good	0.547 \| good	0.135 \| good
2025-07-23T23:00:00.000Z	47 \| good	4.842 \| good	21 \| good	51.002 \| good	0.07 \| good	0.555 \| good	0.134 \| good
2025-07-24T00:00:00.000Z	44 \| good	4.483 \| good	18.989 \| good	47.821 \| good	0.062 \| good	0.562 \| good	0.132 \| good
2025-07-24T01:00:00.000Z	44 \| good	3.544 \| good	16.024 \| good	46.751 \| good	0.062 \| good	0.791 \| good	0.134 \| good
2025-07-24T02:00:00.000Z	42 \| good	1.186 \| good	5.204 \| good	45.009 \| good	0.061 \| good	1.021 \| good	0.135 \| good
2025-07-24T03:00:00.000Z	35 \| good	5.467 \| good	23.134 \| good	37.539 \| good	0.061 \| good	1.25 \| good	0.136 \| good
2025-07-24T04:00:00.000Z	49 \| good	8.766 \| good	38.784 \| good	35.577 \| good	0.08 \| good	2.287 \| good	0.147 \| good
2025-07-24T05:00:00.000Z	33 \| good	6.071 \| good	26.925 \| good	30.071 \| good	0.1 \| good	3.324 \| good	0.157 \| good
2025-07-24T06:00:00.000Z	44 \| good	7.59 \| good	7.741 \| good	43.044 \| good	0.118 \| good	4.353 \| good	0.168 \| good
2025-07-24T07:00:00.000Z	44 \| good	8.318 \| good	36.942 \| good	31.056 \| good	0.124 \| good	4.317 \| good	0.172 \| good
2025-07-24T08:00:00.000Z	34 \| good	6.388 \| good	28.925 \| good	37.194 \| good	0.13 \| good	4.273 \| good	0.177 \| good
2025-07-24T09:00:00.000Z	33 \| good	5.146 \| good	22.07 \| good	36.267 \| good	0.135 \| good	4.229 \| good	0.181 \| good
2025-07-24T10:00:00.000Z	34 \| good	5.605 \| good	24.04 \| good	37.079 \| good	0.139 \| good	3.879 \| good	0.176 \| 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)

Track live Hermiston, Oregon air quality forecast and history

Get reliable air quality data to drive your business

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

How accurate is Oregon, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Hermiston, Oregon updated?

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

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

What is the current air quality in Hermiston, Oregon?

What pollutant is the most common in Hermiston, Oregon?

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

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?