What is the current level of PM10 in Portland, Oregon?

Portland, Oregon currently has a PM10 concentration of 47.769 μg/m3.

What is the current level of sulfur dioxide (SO2) in Portland, Oregon?

The current sulfur dioxide (SO2) concentration in Portland, Oregon is 0.404 ppb.

What is the current level of ozone (O3) in Portland, Oregon?

Portland, Oregon currently has an ozone (O3) concentration of 11.197 ppm.

What is the current level of nitrogen dioxide (NO2) in Portland, Oregon?

The current level of nitrogen dioxide (NO2) in Portland, Oregon is 17.999 ppb.

Current air quality index in Portland, Oregon today

Q: What is the PM2.5 concentration in Portland, Oregon right now?

Portland, Oregon currently has a PM2.5 concentration of 10.818 μg/m3.

Stay updated with real-time air quality in Portland, 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

Portland, Oregon

Last updated: ... (Local time)

Common air pollutants in Portland, Oregon

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.43 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.85 μg/m³

155

255

425

605+

Ozone (O₃)

21.17 ppb

201

201+

Sulfur Dioxide (SO₂)

0.38 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.39 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.17 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Looks like we don't have this data available right now

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Portland, Oregon

Scroll To Air Quality Map

Track live Portland, Oregon air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-10-23T03:00:00.000Z	33 \| good	5.783 \| good	25.917 \| good	12.817 \| good	0.3 \| good	17.29 \| good	0.294 \| good
2025-10-23T04:00:00.000Z	33 \| good	5.783 \| good	25.917 \| good	8.568 \| good	0.3 \| good	15.985 \| good	0.294 \| good
2025-10-23T05:00:00.000Z	38 \| good	6.602 \| good	29.677 \| good	8.159 \| good	0.3 \| good	14.51 \| good	0.418 \| good
2025-10-23T06:00:00.000Z	38 \| good	7.073 \| good	31.741 \| good	8.788 \| good	0.32 \| good	12.665 \| good	0.544 \| good
2025-10-23T07:00:00.000Z	38 \| good	7.265 \| good	32.649 \| good	8.918 \| good	0.291 \| good	10.795 \| good	0.483 \| good
2025-10-23T08:00:00.000Z	38 \| good	7.13 \| good	31.606 \| good	8.879 \| good	0.3 \| good	10.182 \| good	0.545 \| good
2025-10-23T09:00:00.000Z	38 \| good	7.226 \| good	32.252 \| good	9.65 \| good	0.3 \| good	9.426 \| good	0.262 \| good
2025-10-23T10:00:00.000Z	38 \| good	6.721 \| good	29.722 \| good	9.807 \| good	0.3 \| good	5.923 \| good	0.138 \| good
2025-10-23T11:00:00.000Z	38 \| good	6.596 \| good	29.269 \| good	9.611 \| good	0.297 \| good	7.551 \| good	0.2 \| good
2025-10-23T12:00:00.000Z	38 \| good	6.596 \| good	29.269 \| good	8.355 \| good	0.317 \| good	7.047 \| good	0.199 \| good
2025-10-23T13:00:00.000Z	38 \| good	6.617 \| good	29.741 \| good	8.426 \| good	0.371 \| good	7.374 \| good	0.199 \| good
2025-10-23T14:00:00.000Z	38 \| good	6.544 \| good	28.909 \| good	7.911 \| good	0.317 \| good	10.449 \| good	0.202 \| good
2025-10-23T15:00:00.000Z	33 \| good	6.292 \| good	27.765 \| good	7.108 \| good	0.346 \| good	13.526 \| good	0.263 \| good
2025-10-23T16:00:00.000Z	33 \| good	5.916 \| good	26.235 \| good	5.917 \| good	0.371 \| good	13.493 \| good	0.453 \| good
2025-10-23T17:00:00.000Z	33 \| good	5.916 \| good	26.235 \| good	5.45 \| good	0.489 \| good	15.489 \| good	0.451 \| good
2025-10-23T18:00:00.000Z	33 \| good	5.735 \| good	25.224 \| good	6.276 \| good	0.466 \| good	15.378 \| good	0.264 \| good
2025-10-23T19:00:00.000Z	27 \| good	5.03 \| good	21.911 \| good	10.916 \| good	0.421 \| good	12.752 \| good	0.138 \| good
2025-10-23T20:00:00.000Z	27 \| good	5.03 \| good	21.911 \| good	18.012 \| good	0.432 \| good	9.937 \| good	0.136 \| good
2025-10-23T21:00:00.000Z	27 \| good	4.678 \| good	20.435 \| good	19.827 \| good	0.337 \| good	10.223 \| good	0.167 \| good
2025-10-23T22:00:00.000Z	27 \| good	4.685 \| good	20.481 \| good	22.042 \| good	0.358 \| good	8.327 \| good	0.134 \| good
2025-10-23T23:00:00.000Z	27 \| good	4.753 \| good	21.109 \| good	20.71 \| good	0.358 \| good	8.228 \| good	0.134 \| good
2025-10-24T00:00:00.000Z	27 \| good	4.976 \| good	21.376 \| good	23.321 \| good	0.346 \| good	5.488 \| good	0.137 \| good
2025-10-24T01:00:00.000Z	27 \| good	5.176 \| good	22.359 \| good	18.983 \| good	0.349 \| good	8.27 \| good	0.2 \| good
2025-10-24T02:00:00.000Z	33 \| good	5.845 \| good	26.061 \| good	18.473 \| good	0.349 \| good	8.973 \| good	0.2 \| good
2025-10-24T03:00:00.000Z	56 \| moderate	11.876 \| good	52.081 \| good	2.113 \| good	0.944 \| good	20.055 \| good	0.345 \| good
2025-10-24T04:00:00.000Z	44 \| good	8.331 \| good	36.594 \| good	14.736 \| good	0.349 \| good	18.173 \| good	0.328 \| good
2025-10-24T05:00:00.000Z	52 \| moderate	9.589 \| good	42.418 \| good	13.141 \| good	0.424 \| good	16.972 \| good	0.393 \| good
2025-10-24T06:00:00.000Z	54 \| moderate	10.818 \| good	47.769 \| good	11.197 \| good	0.404 \| good	17.999 \| good	0.393 \| good
2025-10-24T07:00:00.000Z	56 \| moderate	11.522 \| good	51.473 \| good	10.493 \| good	0.404 \| good	16.049 \| good	0.455 \| good
2025-10-24T08:00:00.000Z	56 \| moderate	11.994 \| good	53.442 \| good	10.683 \| good	0.375 \| good	16.243 \| good	0.421 \| good
2025-10-24T09:00:00.000Z	56 \| moderate	11.777 \| good	53.341 \| good	12.804 \| good	0.346 \| good	8.465 \| good	0.262 \| good
2025-10-24T10:00:00.000Z	56 \| moderate	11.777 \| good	53.341 \| good	8.241 \| good	0.346 \| good	11.49 \| good	0.262 \| good
2025-10-24T11:00:00.000Z	56 \| moderate	11.707 \| good	52.894 \| good	9.234 \| good	0.358 \| good	9.161 \| good	0.2 \| good
2025-10-24T12:00:00.000Z	54 \| moderate	10.739 \| good	47.87 \| good	13.584 \| good	0.378 \| good	4.4 \| good	0.105 \| good
2025-10-24T13:00:00.000Z	49 \| good	9.301 \| good	41.266 \| good	10.852 \| good	0.349 \| good	4.558 \| good	0.137 \| good
2025-10-24T14:00:00.000Z	44 \| good	7.764 \| good	34.216 \| good	10.973 \| good	0.337 \| good	5.365 \| good	0.105 \| good
2025-10-24T15:00:00.000Z	33 \| good	5.986 \| good	26.949 \| good	17.036 \| good	0.366 \| good	8.128 \| good	0.105 \| good
2025-10-24T16:00:00.000Z	27 \| good	4.695 \| good	20.62 \| good	19.747 \| good	0.332 \| good	8.111 \| good	0.102 \| good
2025-10-24T17:00:00.000Z	27 \| good	4.695 \| good	20.62 \| good	22.111 \| good	0.349 \| good	8.299 \| good	0.104 \| good
2025-10-24T18:00:00.000Z	22 \| good	3.628 \| good	15.517 \| good	22.524 \| good	0.378 \| good	10.216 \| good	0.136 \| good
2025-10-24T19:00:00.000Z	22 \| good	3.628 \| good	15.517 \| good	20.927 \| good	0.361 \| good	8.658 \| good	0.193 \| good
2025-10-24T20:00:00.000Z	21 \| good	3.42 \| good	14.762 \| good	23.437 \| good	0.378 \| good	8.517 \| good	0.189 \| good
2025-10-24T21:00:00.000Z	24 \| good	3.678 \| good	16.255 \| good	25.723 \| good	0.375 \| good	6.355 \| good	0.102 \| good
2025-10-24T22:00:00.000Z	27 \| good	3.307 \| good	14.517 \| good	28.929 \| good	0.375 \| good	4.13 \| good	0.1 \| good
2025-10-24T23:00:00.000Z	27 \| good	3.109 \| good	13.569 \| good	29.155 \| good	0.375 \| good	6.517 \| good	0.103 \| good
2025-10-25T00:00:00.000Z	23 \| good	3.215 \| good	14.319 \| good	25.225 \| good	0.375 \| good	12.613 \| good	0.232 \| good
2025-10-25T01:00:00.000Z	21 \| good	3.215 \| good	14.319 \| good	22.983 \| good	0.375 \| good	11.676 \| good	0.231 \| good
2025-10-25T02:00:00.000Z	19 \| good	3.429 \| good	14.847 \| good	21.171 \| good	0.375 \| good	7.393 \| good	0.165 \| good
2025-10-25T02:00:00.000Z	19 \| good	3.429 \| good	14.847 \| good	21.171 \| good	0.375 \| good	7.393 \| good	0.165 \| good
2025-10-24T07:00:00.000Z	52 \| moderate	9.77 \| good	43.739 \| good	10.778 \| good	0.739 \| good	13.137 \| good	0.243 \| good
2025-10-24T08:00:00.000Z	49 \| good	8.884 \| good	38.766 \| good	10.224 \| good	0.67 \| good	11.412 \| good	0.223 \| good
2025-10-24T09:00:00.000Z	44 \| good	7.672 \| good	34.008 \| good	12.632 \| good	0.6 \| good	9.687 \| good	0.203 \| good
2025-10-24T10:00:00.000Z	38 \| good	7.214 \| good	32.152 \| good	9.165 \| good	0.573 \| good	7.799 \| good	0.187 \| good
2025-10-24T11:00:00.000Z	38 \| good	7.369 \| good	32.043 \| good	10.148 \| good	0.545 \| good	5.911 \| good	0.172 \| good
2025-10-24T12:00:00.000Z	38 \| good	7.247 \| good	31.73 \| good	14.122 \| good	0.518 \| good	4.023 \| good	0.156 \| good
2025-10-24T13:00:00.000Z	22 \| good	4.238 \| good	18.234 \| good	19.977 \| good	0.472 \| good	3.551 \| good	0.144 \| good
2025-10-24T14:00:00.000Z	20 \| good	2.463 \| good	10.679 \| good	22.458 \| good	0.426 \| good	3.08 \| good	0.133 \| good
2025-10-24T15:00:00.000Z	18 \| good	2.683 \| good	11.095 \| good	19.246 \| good	0.38 \| good	2.608 \| good	0.122 \| good
2025-10-24T16:00:00.000Z	17 \| good	3.031 \| good	12.861 \| good	18.403 \| good	0.37 \| good	2.714 \| good	0.121 \| good
2025-10-24T17:00:00.000Z	18 \| good	3.329 \| good	14.349 \| good	18.688 \| good	0.36 \| good	2.82 \| good	0.121 \| good
2025-10-24T18:00:00.000Z	20 \| good	3.324 \| good	14.394 \| good	22.362 \| good	0.35 \| good	2.926 \| good	0.12 \| good
2025-10-24T19:00:00.000Z	27 \| good	5.209 \| good	22.585 \| good	22.465 \| good	0.343 \| good	2.849 \| good	0.12 \| good
2025-10-24T20:00:00.000Z	22 \| good	3.863 \| good	17.113 \| good	22.43 \| good	0.335 \| good	2.772 \| good	0.12 \| good
2025-10-24T21:00:00.000Z	22 \| good	4.02 \| good	17.241 \| good	19.97 \| good	0.328 \| good	2.695 \| good	0.12 \| good
2025-10-24T22:00:00.000Z	22 \| good	3.824 \| good	16.331 \| good	20.55 \| good	0.3 \| good	2.759 \| good	0.121 \| good
2025-10-24T23:00:00.000Z	22 \| good	3.777 \| good	16.425 \| good	20.921 \| good	0.272 \| good	2.823 \| good	0.122 \| good
2025-10-25T00:00:00.000Z	16 \| good	3.371 \| good	14.915 \| good	16.063 \| good	0.244 \| good	2.886 \| good	0.124 \| good
2025-10-25T01:00:00.000Z	16 \| good	3.267 \| good	13.321 \| good	12.456 \| good	0.249 \| good	3.205 \| good	0.125 \| good
2025-10-25T02:00:00.000Z	16 \| good	3.364 \| good	14.548 \| good	13.472 \| good	0.255 \| good	3.523 \| good	0.127 \| good
2025-10-25T03:00:00.000Z	22 \| good	4.247 \| good	19.022 \| good	15.113 \| good	0.26 \| good	3.841 \| good	0.128 \| good
2025-10-25T04:00:00.000Z	27 \| good	5.286 \| good	22.754 \| good	12.025 \| good	0.273 \| good	3.409 \| good	0.123 \| good
2025-10-25T05:00:00.000Z	27 \| good	5.272 \| good	22.598 \| good	11.485 \| good	0.286 \| good	2.977 \| good	0.118 \| good
2025-10-25T06:00:00.000Z	27 \| good	5.108 \| good	22.482 \| good	12.791 \| good	0.3 \| good	2.545 \| good	0.113 \| good
2025-10-25T07:00:00.000Z	27 \| good	4.88 \| good	20.644 \| good	13.328 \| good	0.302 \| good	2.217 \| good	0.112 \| good
2025-10-25T08:00:00.000Z	27 \| good	5.31 \| good	22.407 \| good	11.427 \| good	0.304 \| good	1.889 \| good	0.111 \| good
2025-10-25T09:00:00.000Z	27 \| good	4.851 \| good	20.499 \| good	10.586 \| good	0.307 \| good	1.561 \| good	0.109 \| good
2025-10-25T10:00:00.000Z	27 \| good	4.793 \| good	20.472 \| good	11.138 \| good	0.31 \| good	1.497 \| good	0.109 \| good
2025-10-25T11:00:00.000Z	27 \| good	4.962 \| good	21.35 \| good	11.538 \| good	0.314 \| good	1.433 \| good	0.108 \| good
2025-10-25T12:00:00.000Z	27 \| good	4.786 \| good	20.472 \| good	12.836 \| good	0.317 \| good	1.369 \| good	0.107 \| good
2025-10-25T13:00:00.000Z	22 \| good	4.353 \| good	18.779 \| good	9.84 \| good	0.3 \| good	1.494 \| good	0.109 \| good
2025-10-25T14:00:00.000Z	22 \| good	3.655 \| good	16.089 \| good	12.942 \| good	0.284 \| good	1.619 \| good	0.11 \| good
2025-10-25T15:00:00.000Z	17 \| good	2.838 \| good	11.458 \| good	18.383 \| good	0.267 \| good	1.744 \| good	0.111 \| good
2025-10-25T16:00:00.000Z	16 \| good	2.633 \| good	10.505 \| good	17.337 \| good	0.248 \| good	1.746 \| good	0.112 \| good
2025-10-25T17:00:00.000Z	25 \| good	2.18 \| good	8.877 \| good	26.859 \| good	0.23 \| good	1.749 \| good	0.113 \| good
2025-10-25T18:00:00.000Z	25 \| good	1.776 \| good	7.124 \| good	26.519 \| good	0.211 \| good	1.751 \| good	0.114 \| good
2025-10-25T19:00:00.000Z	28 \| good	2.83 \| good	11.789 \| good	29.999 \| good	0.207 \| good	1.533 \| good	0.114 \| good
2025-10-25T20:00:00.000Z	30 \| good	2.822 \| good	11.804 \| good	31.791 \| good	0.204 \| good	1.315 \| good	0.113 \| good
2025-10-25T21:00:00.000Z	30 \| good	2.449 \| good	10.018 \| good	31.909 \| good	0.2 \| good	1.097 \| good	0.112 \| good
2025-10-25T22:00:00.000Z	30 \| good	2.005 \| good	8.218 \| good	32.092 \| good	0.215 \| good	1.357 \| good	0.116 \| good
2025-10-25T23:00:00.000Z	33 \| good	2.114 \| good	8.264 \| good	35.758 \| good	0.231 \| good	1.616 \| good	0.119 \| good
2025-10-26T00:00:00.000Z	34 \| good	1.446 \| good	5.511 \| good	36.681 \| good	0.246 \| good	1.876 \| good	0.122 \| good
2025-10-26T01:00:00.000Z	32 \| good	1.563 \| good	6.402 \| good	35.07 \| good	0.262 \| good	1.906 \| good	0.121 \| good
2025-10-26T02:00:00.000Z	30 \| good	2.297 \| good	9.124 \| good	31.917 \| good	0.278 \| good	1.936 \| good	0.119 \| good
2025-10-26T03:00:00.000Z	27 \| good	2.519 \| good	9.926 \| good	29.393 \| good	0.294 \| good	1.966 \| good	0.117 \| good
2025-10-26T04:00:00.000Z	26 \| good	3.21 \| good	14.317 \| good	28.316 \| good	0.311 \| good	1.86 \| good	0.115 \| good
2025-10-26T05:00:00.000Z	27 \| good	4.392 \| good	18.926 \| good	28.707 \| good	0.329 \| good	1.754 \| good	0.112 \| good
2025-10-26T06:00:00.000Z	35 \| good	3.411 \| good	4.635 \| good	38.082 \| good	0.346 \| good	1.646 \| good	0.11 \| good

Portland

Empower business decisions with accurate air quality data

Real-time air quality map: Monitor AQI near Portland, Oregon

0.40ppm

How accurate is Oregon, USA air quality data?

The air quality data for Oregon, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.

Source: Ambee Data Sources

Air quality levels in US

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

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Frequently asked questions

How frequently does the air quality data for Portland, Oregon get updated?

Air quality updates for Portland, Oregon are available every hour.

What time in the past 24 hours saw the poorest air quality in Portland, Oregon?

Portland, Oregon experienced its worst air quality at 03:00:00, 2025-10-24.

When was air quality in Portland, Oregon the best over the past 24 hours?

The best air quality in Portland, Oregon was observed at 01:00:00 on 2025-10-24.

What is the air quality in Portland, Oregon right now?

The air quality in Portland, Oregon right now is Moderate, with an AQI of 54.

What pollutant is most frequently found in Portland, Oregon?

In Portland, Oregon, PM2.5 is the most frequently found pollutant.

What can I do if the air quality in Portland, Oregon is poor?

When air quality in Portland, Oregon is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in Portland, Oregon right now?

Portland, Oregon currently has a PM_2.5 concentration of 10.818 μg/m³.

What is the current level of PM₁₀ in Portland, Oregon?

Portland, Oregon currently has a PM₁₀ concentration of 47.769 μg/m³.

What is the current level of carbon monoxide (CO) in Portland, Oregon?

The current carbon monoxide (CO) level in Portland, Oregon is 0.393 ppm.

What is the current level of sulfur dioxide (SO₂) in Portland, Oregon?

The current sulfur dioxide (SO₂) concentration in Portland, Oregon is 0.404 ppb.

What is the current level of ozone (O₃) in Portland, Oregon?

Portland, Oregon currently has an ozone (O₃) concentration of 11.197 ppm.

What is the current level of nitrogen dioxide (NO₂) in Portland, Oregon?

The current level of nitrogen dioxide (NO₂) in Portland, Oregon is 17.999 ppb.

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