What is the current concentration of PM10 in Washington, USA?

The current PM10 concentration at Washington, USA is 61.736 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Washington, USA?

The current sulfur dioxide (SO2) concentration at Washington, USA is 0.884 ppb.

What is the current concentration of ozone (O3) in Washington, USA?

The current ozone (O3) concentration at Washington, USA is 16.637 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Washington, USA?

The current nitrogen dioxide (NO2) concentration at Washington, USA is 9.765 ppb.

Washington, USA live air quality index now

Name: Live air pollution levels in Washington, USA today
Creator: Ambee

Stay updated with real-time air quality in Washington, USA 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

Washington, USA

Last updated: ... (Local time)

Major air pollutants in Washington, USA

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.94 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

61.74 μg/m³

155

255

425

605+

Ozone (O₃)

16.64 ppb

201

201+

Sulfur Dioxide (SO₂)

0.88 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

9.77 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Washington, USA

Get Live Pollen Counts

Washington, USA

Scroll To Air Quality Map

Track live Washington, USA air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T22:00:00.000Z	69 \| moderate	18.919 \| fine	73.242 \| fine	33.742 \| good	1.386 \| good	4.816 \| good	0.287 \| good
2025-09-03T23:00:00.000Z	71 \| moderate	19.694 \| fine	94.336 \| fine	35.683 \| good	0.588 \| good	4.894 \| good	0.287 \| good
2025-09-04T00:00:00.000Z	67 \| moderate	18.486 \| fine	81.786 \| fine	38.758 \| good	0.737 \| good	5.802 \| good	0.32 \| good
2025-09-04T01:00:00.000Z	71 \| moderate	19.79 \| fine	94.144 \| fine	41.976 \| good	0.485 \| good	6.091 \| good	0.329 \| good
2025-09-04T02:00:00.000Z	69 \| moderate	18.501 \| fine	74.46 \| fine	38.473 \| good	0.482 \| good	7.099 \| good	0.345 \| good
2025-09-04T03:00:00.000Z	71 \| moderate	19.816 \| fine	76.02 \| fine	35.8 \| good	0.505 \| good	14.524 \| good	0.371 \| good
2025-09-04T04:00:00.000Z	86 \| moderate	27.692 \| fine	108.093 \| fine	30.633 \| good	0.473 \| good	12.096 \| good	0.297 \| good
2025-09-04T05:00:00.000Z	90 \| moderate	29.867 \| fine	134.348 \| fine	29.749 \| good	0.464 \| good	10.171 \| good	0.34 \| good
2025-09-04T06:00:00.000Z	105 \| sensitive	37.073 \| moderate	157.786 \| moderate	22.574 \| good	0.431 \| good	12.413 \| good	0.32 \| good
2025-09-04T07:00:00.000Z	94 \| moderate	31.569 \| fine	126.073 \| fine	19.936 \| good	0.471 \| good	12.091 \| good	0.277 \| good
2025-09-04T08:00:00.000Z	86 \| moderate	28.012 \| fine	113.141 \| fine	18.644 \| good	0.428 \| good	12.053 \| good	0.258 \| good
2025-09-04T09:00:00.000Z	75 \| moderate	22.056 \| fine	94.369 \| fine	17.79 \| good	0.348 \| good	7.549 \| good	0.212 \| good
2025-09-04T10:00:00.000Z	77 \| moderate	23.063 \| fine	108.313 \| fine	19.985 \| good	0.398 \| good	7.454 \| good	0.212 \| good
2025-09-04T11:00:00.000Z	91 \| moderate	27.726 \| fine	134.96 \| fine	12.942 \| good	0.309 \| good	11.774 \| good	0.191 \| good
2025-09-04T12:00:00.000Z	92 \| moderate	31.235 \| fine	96.829 \| fine	12.929 \| good	0.262 \| good	11.993 \| good	0.191 \| good
2025-09-04T13:00:00.000Z	149 \| sensitive	54.953 \| moderate	227.489 \| moderate	22.291 \| good	1.272 \| good	7.672 \| good	0.411 \| good
2025-09-04T14:00:00.000Z	71 \| moderate	20.036 \| fine	92.502 \| fine	20.232 \| good	0.262 \| good	10.566 \| good	0.219 \| good
2025-09-04T15:00:00.000Z	64 \| moderate	16.035 \| fine	72.465 \| fine	18.662 \| good	0.235 \| good	9.5 \| good	0.177 \| good
2025-09-04T16:00:00.000Z	73 \| moderate	21.031 \| fine	89.706 \| fine	11.915 \| good	0.309 \| good	9.108 \| good	0.2 \| good
2025-09-04T17:00:00.000Z	75 \| moderate	21.589 \| fine	71.645 \| fine	16.346 \| good	0.466 \| good	7.402 \| good	0.224 \| good
2025-09-04T18:00:00.000Z	122 \| sensitive	43.923 \| moderate	148.047 \| fine	12.531 \| good	0.564 \| good	7.27 \| good	0.2 \| good
2025-09-04T19:00:00.000Z	151 \| unhealthy	56.303 \| poor	178.323 \| moderate	13.849 \| good	0.527 \| good	6.907 \| good	0.257 \| good
2025-09-04T20:00:00.000Z	159 \| unhealthy	67.265 \| poor	170.689 \| moderate	12.521 \| good	0.514 \| good	6.554 \| good	0.233 \| good
2025-09-04T21:00:00.000Z	147 \| sensitive	53.767 \| moderate	144.596 \| fine	17.044 \| good	0.486 \| good	6.023 \| good	0.242 \| good
2025-09-04T22:00:00.000Z	132 \| sensitive	47.521 \| moderate	132.559 \| fine	18.787 \| good	0.464 \| good	5.816 \| good	0.308 \| good
2025-09-04T23:00:00.000Z	96 \| moderate	32.631 \| fine	116.071 \| fine	20.28 \| good	0.518 \| good	7.05 \| good	0.308 \| good
2025-09-05T00:00:00.000Z	96 \| moderate	32.856 \| fine	138.372 \| fine	19.181 \| good	0.559 \| good	6.863 \| good	0.284 \| good
2025-09-05T01:00:00.000Z	86 \| moderate	27.824 \| fine	102.364 \| fine	21.836 \| good	0.594 \| good	7.936 \| good	0.302 \| good
2025-09-05T02:00:00.000Z	84 \| moderate	27.109 \| fine	90.867 \| fine	25.368 \| good	0.622 \| good	10.707 \| good	0.325 \| good
2025-09-05T03:00:00.000Z	82 \| moderate	25.808 \| fine	81.781 \| fine	23.139 \| good	0.57 \| good	12.609 \| good	0.3 \| good
2025-09-05T04:00:00.000Z	84 \| moderate	26.732 \| fine	108.076 \| fine	18.797 \| good	0.509 \| good	14.403 \| good	0.265 \| good
2025-09-05T05:00:00.000Z	71 \| moderate	19.854 \| fine	50.487 \| good	17.957 \| good	0.429 \| good	12.163 \| good	0.288 \| good
2025-09-05T06:00:00.000Z	88 \| moderate	29.331 \| fine	122.835 \| fine	16.81 \| good	0.445 \| good	12.098 \| good	0.312 \| good
2025-09-05T07:00:00.000Z	73 \| moderate	21.225 \| fine	63.629 \| fine	18.005 \| good	0.345 \| good	12.81 \| good	0.296 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.367 \| fine	65.621 \| fine	15.427 \| good	0.36 \| good	14.778 \| good	0.234 \| good
2025-09-05T09:00:00.000Z	71 \| moderate	19.683 \| fine	71.275 \| fine	14.564 \| good	0.313 \| good	13.586 \| good	0.212 \| good
2025-09-05T10:00:00.000Z	69 \| moderate	19.465 \| fine	68.245 \| fine	12.827 \| good	0.318 \| good	16.959 \| good	0.212 \| good
2025-09-05T11:00:00.000Z	73 \| moderate	21.234 \| fine	85.923 \| fine	8.812 \| good	0.315 \| good	9.112 \| good	0.23 \| good
2025-09-05T12:00:00.000Z	70 \| moderate	15.308 \| fine	92.712 \| fine	16.54 \| good	0.317 \| good	11.441 \| good	0.234 \| good
2025-09-05T13:00:00.000Z	84 \| moderate	26.033 \| fine	121.532 \| fine	10.206 \| good	0.324 \| good	13.834 \| good	0.216 \| good
2025-09-05T14:00:00.000Z	107 \| sensitive	38.282 \| moderate	155.64 \| moderate	9.392 \| good	0.489 \| good	12.233 \| good	0.281 \| good
2025-09-05T15:00:00.000Z	102 \| sensitive	36.483 \| moderate	118.368 \| fine	7.455 \| good	0.469 \| good	14.34 \| good	0.281 \| good
2025-09-05T16:00:00.000Z	122 \| sensitive	44.304 \| moderate	164.497 \| moderate	9.828 \| good	0.472 \| good	9.422 \| good	0.259 \| good
2025-09-05T17:00:00.000Z	92 \| moderate	31.397 \| fine	126.967 \| fine	9.069 \| good	0.559 \| good	9.908 \| good	0.282 \| good
2025-09-05T18:00:00.000Z	134 \| sensitive	48.608 \| moderate	174.169 \| moderate	8.352 \| good	0.625 \| good	10.628 \| good	0.3 \| good
2025-09-05T19:00:00.000Z	115 \| sensitive	41.317 \| moderate	116.595 \| fine	9.708 \| good	0.69 \| good	10.138 \| good	0.3 \| good
2025-09-05T20:00:00.000Z	119 \| sensitive	43.056 \| moderate	124.15 \| fine	13.992 \| good	0.562 \| good	8.52 \| good	0.276 \| good
2025-09-05T21:00:00.000Z	127 \| sensitive	46.102 \| moderate	208.288 \| moderate	18.227 \| good	0.512 \| good	7.858 \| good	0.296 \| good
2025-09-05T21:00:00.000Z	62 \| moderate	14.944 \| fine	61.736 \| fine	16.637 \| good	0.884 \| good	9.765 \| good	0.25 \| good
2025-09-05T20:00:00.000Z	189 \| unhealthy	109.832 \| poor	310.98 \| poor	26.438 \| good	1.152 \| good	2.587 \| good	0.46 \| good
2025-09-05T21:00:00.000Z	184 \| unhealthy	101.829 \| poor	302.34 \| poor	29.452 \| good	1.123 \| good	2.351 \| good	0.448 \| good
2025-09-05T22:00:00.000Z	181 \| unhealthy	99.02 \| poor	299.914 \| poor	30.29 \| good	1.403 \| good	3.481 \| good	0.503 \| good
2025-09-05T23:00:00.000Z	180 \| unhealthy	96.584 \| poor	297.604 \| poor	31.199 \| good	1.682 \| good	4.61 \| good	0.559 \| good
2025-09-06T00:00:00.000Z	177 \| unhealthy	92.353 \| poor	292.693 \| poor	34.406 \| good	1.962 \| good	5.74 \| good	0.614 \| good
2025-09-06T01:00:00.000Z	163 \| unhealthy	71.943 \| poor	272.152 \| poor	38.579 \| good	2.379 \| good	9.166 \| good	0.723 \| good
2025-09-06T02:00:00.000Z	115 \| sensitive	40.983 \| moderate	181.226 \| moderate	41.936 \| good	2.796 \| good	12.592 \| good	0.831 \| good
2025-09-06T03:00:00.000Z	77 \| moderate	23.113 \| fine	101.025 \| fine	44.547 \| good	3.213 \| good	16.017 \| good	0.939 \| good
2025-09-06T04:00:00.000Z	69 \| moderate	18.766 \| fine	82.997 \| fine	44.989 \| good	3.379 \| good	16.711 \| good	0.993 \| good
2025-09-06T05:00:00.000Z	67 \| moderate	17.654 \| fine	78.025 \| fine	44.08 \| good	3.544 \| good	17.405 \| good	1.047 \| good
2025-09-06T06:00:00.000Z	79 \| moderate	23.976 \| fine	104.617 \| fine	40.446 \| good	3.71 \| good	18.099 \| good	1.101 \| good
2025-09-06T07:00:00.000Z	79 \| moderate	23.951 \| fine	104.526 \| fine	42.378 \| good	3.623 \| good	18.531 \| good	1.106 \| good
2025-09-06T08:00:00.000Z	75 \| moderate	21.952 \| fine	96.039 \| fine	43.703 \| good	3.537 \| good	18.964 \| good	1.112 \| good
2025-09-06T09:00:00.000Z	77 \| moderate	23.444 \| fine	102.433 \| fine	42.257 \| good	3.45 \| good	19.396 \| good	1.117 \| good
2025-09-06T10:00:00.000Z	82 \| moderate	26.485 \| fine	115.354 \| fine	40.539 \| good	3.227 \| good	18.47 \| good	1.072 \| good
2025-09-06T11:00:00.000Z	81 \| moderate	24.98 \| fine	108.995 \| fine	40.757 \| good	3.004 \| good	17.543 \| good	1.026 \| good
2025-09-06T12:00:00.000Z	79 \| moderate	23.824 \| fine	104.114 \| fine	41.042 \| good	2.781 \| good	16.616 \| good	0.981 \| good
2025-09-06T13:00:00.000Z	100 \| moderate	34.907 \| fine	152.668 \| fine	35.39 \| good	2.594 \| good	15.381 \| good	0.941 \| good
2025-09-06T14:00:00.000Z	107 \| sensitive	37.691 \| moderate	165.613 \| moderate	32.436 \| good	2.407 \| good	14.145 \| good	0.902 \| good
2025-09-06T15:00:00.000Z	107 \| sensitive	38.172 \| moderate	167.544 \| moderate	34.967 \| good	2.22 \| good	12.91 \| good	0.862 \| good
2025-09-06T16:00:00.000Z	99 \| moderate	34.686 \| fine	151.762 \| fine	41.093 \| good	2.085 \| good	10.508 \| good	0.784 \| good
2025-09-06T17:00:00.000Z	110 \| sensitive	38.851 \| moderate	171.358 \| moderate	46.45 \| good	1.95 \| good	8.107 \| good	0.706 \| good
2025-09-06T18:00:00.000Z	157 \| unhealthy	64.273 \| poor	262.886 \| poor	46.545 \| good	1.815 \| good	5.705 \| good	0.628 \| good
2025-09-06T19:00:00.000Z	170 \| unhealthy	82.081 \| poor	282.241 \| poor	47.135 \| good	1.75 \| good	4.87 \| good	0.608 \| good
2025-09-06T20:00:00.000Z	171 \| unhealthy	84.448 \| poor	284.51 \| poor	50.815 \| good	1.685 \| good	4.034 \| good	0.587 \| good
2025-09-06T21:00:00.000Z	170 \| unhealthy	82.65 \| poor	283.051 \| poor	57.182 \| fine	1.62 \| good	3.199 \| good	0.567 \| good
2025-09-06T22:00:00.000Z	170 \| unhealthy	81.914 \| poor	281.73 \| poor	62.18 \| fine	1.701 \| good	3.808 \| good	0.569 \| good
2025-09-06T23:00:00.000Z	169 \| unhealthy	80.897 \| poor	281.069 \| poor	62.459 \| fine	1.781 \| good	4.418 \| good	0.571 \| good
2025-09-07T00:00:00.000Z	160 \| unhealthy	68.782 \| poor	268.421 \| poor	59.142 \| fine	1.862 \| good	5.028 \| good	0.574 \| good
2025-09-07T01:00:00.000Z	122 \| sensitive	43.741 \| moderate	195.664 \| moderate	51.33 \| good	2.014 \| good	7.223 \| good	0.619 \| good
2025-09-07T02:00:00.000Z	79 \| moderate	24.444 \| fine	106.794 \| fine	44.854 \| good	2.167 \| good	9.419 \| good	0.665 \| good
2025-09-07T03:00:00.000Z	69 \| moderate	19.208 \| fine	85.043 \| fine	41.164 \| good	2.32 \| good	11.615 \| good	0.711 \| good
2025-09-07T04:00:00.000Z	67 \| moderate	17.982 \| fine	79.65 \| fine	40.736 \| good	1.921 \| good	9.802 \| good	0.623 \| good
2025-09-07T05:00:00.000Z	64 \| moderate	16.456 \| fine	72.644 \| fine	41.549 \| good	1.523 \| good	7.989 \| good	0.535 \| good
2025-09-07T06:00:00.000Z	69 \| moderate	18.948 \| fine	84.087 \| fine	39.955 \| good	1.124 \| good	6.176 \| good	0.447 \| good
2025-09-07T07:00:00.000Z	69 \| moderate	19.241 \| fine	85.08 \| fine	39.89 \| good	0.958 \| good	5.633 \| good	0.42 \| good
2025-09-07T08:00:00.000Z	66 \| moderate	16.518 \| fine	73.741 \| fine	39.702 \| good	0.793 \| good	5.09 \| good	0.393 \| good
2025-09-07T09:00:00.000Z	64 \| moderate	16.361 \| fine	72.855 \| fine	39.235 \| good	0.627 \| good	4.548 \| good	0.365 \| good
2025-09-07T10:00:00.000Z	66 \| moderate	17.054 \| fine	75.759 \| fine	39.807 \| good	0.597 \| good	4.455 \| good	0.358 \| good
2025-09-07T11:00:00.000Z	64 \| moderate	15.541 \| fine	69.257 \| fine	40.791 \| good	0.567 \| good	4.362 \| good	0.35 \| good
2025-09-07T12:00:00.000Z	62 \| moderate	15.175 \| fine	67.784 \| fine	41.177 \| good	0.537 \| good	4.269 \| good	0.343 \| good
2025-09-07T13:00:00.000Z	69 \| moderate	18.698 \| fine	82.341 \| fine	39.801 \| good	0.595 \| good	4.702 \| good	0.351 \| good
2025-09-07T14:00:00.000Z	69 \| moderate	18.782 \| fine	83.483 \| fine	40.632 \| good	0.653 \| good	5.135 \| good	0.358 \| good
2025-09-07T15:00:00.000Z	67 \| moderate	18.407 \| fine	81.76 \| fine	41.894 \| good	0.711 \| good	5.569 \| good	0.366 \| good
2025-09-07T16:00:00.000Z	62 \| moderate	14.909 \| fine	66.421 \| fine	43.735 \| good	0.784 \| good	5.799 \| good	0.378 \| good
2025-09-07T17:00:00.000Z	60 \| moderate	14.104 \| fine	63.331 \| fine	45.465 \| good	0.858 \| good	6.03 \| good	0.39 \| good
2025-09-07T18:00:00.000Z	69 \| moderate	19.22 \| fine	84.493 \| fine	44.779 \| good	0.932 \| good	6.26 \| good	0.403 \| good
2025-09-07T19:00:00.000Z	73 \| moderate	21.167 \| fine	93.077 \| fine	43.81 \| good	1.309 \| good	7.598 \| good	0.486 \| good

Washington

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Washington, USA air quality map: Track AQI near you

Air quality in cities of Washington, USA

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
Wenatchee, Washington	156 Unhealthy	62.92μg/m³ Poor	262.23μg/m³ Poor	13.85ppb Good	0.57ppb Good	8.47ppb Good	0.28ppm Good
East Wenatchee, Washington	156 Unhealthy	61.92μg/m³ Poor	258.98μg/m³ Poor	14.02ppb Good	0.62ppb Good	8.48ppb Good	0.28ppm Good
Moses Lake, Washington	127 Unhealthy for sensitive groups	45.60μg/m³ Moderate	205.02μg/m³ Moderate	19.02ppb Good	1.89ppb Good	8.90ppb Good	0.28ppm Good
Pullman, Washington	124 Unhealthy for sensitive groups	44.90μg/m³ Moderate	201.00μg/m³ Moderate	29.34ppb Good	2.45ppb Good	5.89ppb Good	0.26ppm Good
Yakima, Washington	122 Unhealthy for sensitive groups	44.48μg/m³ Moderate	79.57μg/m³ Fine	18.46ppb Good	0.79ppb Good	10.17ppb Good	0.26ppm Good
Sunnyside, Washington	118 Unhealthy for sensitive groups	42.43μg/m³ Moderate	190.33μg/m³ Moderate	24.40ppb Good	1.70ppb Good	8.85ppb Good	0.26ppm Good
Grandview, Washington	112 Unhealthy for sensitive groups	39.85μg/m³ Moderate	175.54μg/m³ Moderate	24.81ppb Good	1.69ppb Good	8.90ppb Good	0.26ppm Good
West Richland, Washington	105 Unhealthy for sensitive groups	37.09μg/m³ Moderate	121.30μg/m³ Fine	30.52ppb Good	1.83ppb Good	10.03ppb Good	0.26ppm Good
Spokane, Washington	102 Unhealthy for sensitive groups	36.29μg/m³ Moderate	140.16μg/m³ Fine	29.93ppb Good	2.48ppb Good	7.30ppb Good	0.30ppm Good
Ellensburg, Washington	102 Unhealthy for sensitive groups	35.86μg/m³ Moderate	157.10μg/m³ Moderate	15.44ppb Good	0.57ppb Good	9.95ppb Good	0.26ppm Good
Liberty Lake, Washington	99 Moderate	34.97μg/m³ Fine	94.38μg/m³ Fine	29.14ppb Good	2.47ppb Good	7.11ppb Good	0.30ppm Good
Airway Heights, Washington	97 Moderate	33.90μg/m³ Fine	146.98μg/m³ Fine	29.58ppb Good	2.48ppb Good	7.34ppb Good	0.26ppm Good
Cheney, Washington	97 Moderate	33.65μg/m³ Fine	117.72μg/m³ Fine	28.18ppb Good	2.47ppb Good	7.22ppb Good	0.27ppm Good
Spokane Valley, Washington	97 Moderate	33.87μg/m³ Fine	73.15μg/m³ Fine	29.61ppb Good	2.47ppb Good	7.22ppb Good	0.30ppm Good
Richland, Washington	92 Moderate	30.91μg/m³ Fine	95.08μg/m³ Fine	30.55ppb Good	1.84ppb Good	9.22ppb Good	0.26ppm Good
Kennewick, Washington	88 Moderate	28.74μg/m³ Fine	97.45μg/m³ Fine	30.53ppb Good	1.85ppb Good	9.21ppb Good	0.25ppm Good
Pasco, Washington	88 Moderate	28.64μg/m³ Fine	98.16μg/m³ Fine	30.48ppb Good	1.85ppb Good	9.21ppb Good	0.25ppm Good
Arlington, Washington	79 Moderate	23.75μg/m³ Fine	81.47μg/m³ Fine	19.60ppb Good	0.53ppb Good	8.42ppb Good	0.26ppm Good
Camano, Washington	77 Moderate	23.40μg/m³ Fine	81.65μg/m³ Fine	12.86ppb Good	0.64ppb Good	8.98ppb Good	0.24ppm Good
Auburn, Washington	77 Moderate	22.54μg/m³ Fine	99.67μg/m³ Fine	14.36ppb Good	0.66ppb Good	8.10ppb Good	0.24ppm Good
Walla Walla, Washington	77 Moderate	22.61μg/m³ Fine	98.95μg/m³ Fine	33.70ppb Good	1.92ppb Good	6.71ppb Good	0.24ppm Good
Lake Tapps, Washington	75 Moderate	21.98μg/m³ Fine	97.15μg/m³ Fine	14.40ppb Good	0.66ppb Good	8.05ppb Good	0.24ppm Good
Snohomish, Washington	73 Moderate	21.09μg/m³ Fine	69.44μg/m³ Fine	23.18ppb Good	0.64ppb Good	9.38ppb Good	0.26ppm Good
Bonney Lake, Washington	69 Moderate	19.10μg/m³ Fine	84.57μg/m³ Fine	15.20ppb Good	0.69ppb Good	8.33ppb Good	0.24ppm Good
Covington, Washington	71 Moderate	19.53μg/m³ Fine	88.52μg/m³ Fine	13.96ppb Good	0.74ppb Good	8.81ppb Good	0.25ppm Good
Issaquah, Washington	69 Moderate	19.05μg/m³ Fine	78.09μg/m³ Fine	9.11ppb Good	0.76ppb Good	8.98ppb Good	0.25ppm Good
Lake Stevens, Washington	68 Moderate	15.16μg/m³ Fine	88.75μg/m³ Fine	19.73ppb Good	0.58ppb Good	8.55ppb Good	0.26ppm Good
Monroe, Washington	68 Moderate	15.05μg/m³ Fine	88.65μg/m³ Fine	19.80ppb Good	0.62ppb Good	8.57ppb Good	0.26ppm Good
Silver Firs, Washington	68 Moderate	14.84μg/m³ Fine	90.03μg/m³ Fine	19.46ppb Good	0.65ppb Good	9.39ppb Good	0.26ppm Good
Washougal, Washington	68 Moderate	12.79μg/m³ Fine	90.20μg/m³ Fine	17.50ppb Good	0.84ppb Good	9.84ppb Good	0.24ppm Good
Graham, Washington	67 Moderate	12.70μg/m³ Fine	88.16μg/m³ Fine	24.93ppb Good	0.84ppb Good	9.46ppb Good	0.24ppm Good
Sumner, Washington	67 Moderate	17.75μg/m³ Fine	78.44μg/m³ Fine	14.42ppb Good	0.70ppb Good	8.44ppb Good	0.24ppm Good
Lynden, Washington	66 Moderate	16.78μg/m³ Fine	44.76μg/m³ Good	15.34ppb Good	0.35ppb Good	8.26ppb Good	0.28ppm Good
Prairie Ridge, Washington	65 Moderate	13.94μg/m³ Fine	83.83μg/m³ Fine	19.92ppb Good	0.68ppb Good	7.95ppb Good	0.24ppm Good
Snoqualmie, Washington	66 Moderate	16.72μg/m³ Fine	73.89μg/m³ Fine	19.11ppb Good	0.65ppb Good	8.66ppb Good	0.25ppm Good
Edgewood, Washington	64 Moderate	16.25μg/m³ Fine	71.83μg/m³ Fine	14.48ppb Good	0.72ppb Good	8.59ppb Good	0.24ppm Good
Lakeland South, Washington	64 Moderate	16.25μg/m³ Fine	71.83μg/m³ Fine	14.48ppb Good	0.72ppb Good	8.59ppb Good	0.24ppm Good
Elk Plain, Washington	64 Moderate	16.41μg/m³ Fine	76.50μg/m³ Fine	19.88ppb Good	0.80ppb Good	9.12ppb Good	0.24ppm Good
Sammamish, Washington	64 Moderate	16.29μg/m³ Fine	67.34μg/m³ Fine	10.74ppb Good	0.79ppb Good	9.63ppb Good	0.25ppm Good
East Renton Highlands, Washington	64 Moderate	15.55μg/m³ Fine	63.83μg/m³ Fine	10.73ppb Good	0.80ppb Good	9.90ppb Good	0.24ppm Good
Cottage Lake, Washington	62 Moderate	14.90μg/m³ Fine	63.70μg/m³ Fine	21.08ppb Good	0.73ppb Good	8.91ppb Good	0.25ppm Good
Enumclaw, Washington	62 Moderate	15.19μg/m³ Fine	68.85μg/m³ Fine	21.76ppb Good	0.68ppb Good	9.10ppb Good	0.25ppm Good
Kent, Washington	62 Moderate	15.15μg/m³ Fine	64.64μg/m³ Fine	12.08ppb Good	0.79ppb Good	11.57ppb Good	0.24ppm Good
Maltby, Washington	62 Moderate	15.25μg/m³ Fine	57.15μg/m³ Fine	21.77ppb Good	0.69ppb Good	10.02ppb Good	0.26ppm Good
Union HillNovelty Hill, Washington	62 Moderate	15.32μg/m³ Fine	64.11μg/m³ Fine	23.15ppb Good	0.70ppb Good	8.86ppb Good	0.25ppm Good
Federal Way, Washington	62 Moderate	14.51μg/m³ Fine	64.26μg/m³ Fine	13.90ppb Good	0.74ppb Good	9.37ppb Good	0.24ppm Good
Lakeland North, Washington	62 Moderate	14.51μg/m³ Fine	64.26μg/m³ Fine	13.90ppb Good	0.74ppb Good	9.37ppb Good	0.24ppm Good
Newcastle, Washington	60 Moderate	14.10μg/m³ Fine	59.48μg/m³ Fine	12.57ppb Good	0.83ppb Good	9.98ppb Good	0.24ppm Good
Puyallup, Washington	60 Moderate	13.85μg/m³ Fine	61.13μg/m³ Fine	14.65ppb Good	0.74ppb Good	8.60ppb Good	0.24ppm Good
Redmond, Washington	60 Moderate	14.02μg/m³ Fine	59.15μg/m³ Fine	12.99ppb Good	0.82ppb Good	10.70ppb Good	0.25ppm Good

City	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
No results found

0.18ppm

How accurate is Washington, USA air quality data?

Air quality data and pollutant measurements for Washington, 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.

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Frequently asked questions

How often is the air quality data for Washington, USA updated?

The air quality for Washington, USA is updated every hour.

When was the worst air quality at Washington, USA in the last 24 hrs?

The worst air quality in Washington, USA in the last 24 hours was observed at 08:00:00 on 2025-09-04.

When was the best air quality at Washington, USA in the last 24 hrs?

In the last 24 hrs, the best air quality in Washington, USA was observed at 10:00:00 on 2025-09-05.

What is the current air quality in Washington, USA?

The current air quality in Washington, USA is 62, categorized as Moderate based on real-time data.

What pollutant is the most common in Washington, USA?

The most common pollutant in Washington, USA is PM2.5.

What should I do if the air quality in Washington, USA is poor?

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

What is the current concentration of PM_2.5 in Washington, USA?

The current PM_2.5 concentration at Washington, USA is 14.944 μg/m³.

What is the current concentration of PM₁₀ in Washington, USA?

The current PM₁₀ concentration at Washington, USA is 61.736 μg/m³.

What is the current concentration of carbon monoxide (CO) in Washington, USA?

The current carbon monoxide (CO) concentration at Washington, USA is 0.25 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Washington, USA?

The current sulfur dioxide (SO₂) concentration at Washington, USA is 0.884 ppb.

What is the current concentration of ozone (O₃) in Washington, USA?

The current ozone (O₃) concentration at Washington, USA is 16.637 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Washington, USA?

The current nitrogen dioxide (NO₂) concentration at Washington, USA is 9.765 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-03T22:00:00.000Z	69 \| moderate	18.919 \| fine	73.242 \| fine	33.742 \| good	1.386 \| good	4.816 \| good	0.287 \| good
2025-09-03T23:00:00.000Z	71 \| moderate	19.694 \| fine	94.336 \| fine	35.683 \| good	0.588 \| good	4.894 \| good	0.287 \| good
2025-09-04T00:00:00.000Z	67 \| moderate	18.486 \| fine	81.786 \| fine	38.758 \| good	0.737 \| good	5.802 \| good	0.32 \| good
2025-09-04T01:00:00.000Z	71 \| moderate	19.79 \| fine	94.144 \| fine	41.976 \| good	0.485 \| good	6.091 \| good	0.329 \| good
2025-09-04T02:00:00.000Z	69 \| moderate	18.501 \| fine	74.46 \| fine	38.473 \| good	0.482 \| good	7.099 \| good	0.345 \| good
2025-09-04T03:00:00.000Z	71 \| moderate	19.816 \| fine	76.02 \| fine	35.8 \| good	0.505 \| good	14.524 \| good	0.371 \| good
2025-09-04T04:00:00.000Z	86 \| moderate	27.692 \| fine	108.093 \| fine	30.633 \| good	0.473 \| good	12.096 \| good	0.297 \| good
2025-09-04T05:00:00.000Z	90 \| moderate	29.867 \| fine	134.348 \| fine	29.749 \| good	0.464 \| good	10.171 \| good	0.34 \| good
2025-09-04T06:00:00.000Z	105 \| sensitive	37.073 \| moderate	157.786 \| moderate	22.574 \| good	0.431 \| good	12.413 \| good	0.32 \| good
2025-09-04T07:00:00.000Z	94 \| moderate	31.569 \| fine	126.073 \| fine	19.936 \| good	0.471 \| good	12.091 \| good	0.277 \| good
2025-09-04T08:00:00.000Z	86 \| moderate	28.012 \| fine	113.141 \| fine	18.644 \| good	0.428 \| good	12.053 \| good	0.258 \| good
2025-09-04T09:00:00.000Z	75 \| moderate	22.056 \| fine	94.369 \| fine	17.79 \| good	0.348 \| good	7.549 \| good	0.212 \| good
2025-09-04T10:00:00.000Z	77 \| moderate	23.063 \| fine	108.313 \| fine	19.985 \| good	0.398 \| good	7.454 \| good	0.212 \| good
2025-09-04T11:00:00.000Z	91 \| moderate	27.726 \| fine	134.96 \| fine	12.942 \| good	0.309 \| good	11.774 \| good	0.191 \| good
2025-09-04T12:00:00.000Z	92 \| moderate	31.235 \| fine	96.829 \| fine	12.929 \| good	0.262 \| good	11.993 \| good	0.191 \| good
2025-09-04T13:00:00.000Z	149 \| sensitive	54.953 \| moderate	227.489 \| moderate	22.291 \| good	1.272 \| good	7.672 \| good	0.411 \| good
2025-09-04T14:00:00.000Z	71 \| moderate	20.036 \| fine	92.502 \| fine	20.232 \| good	0.262 \| good	10.566 \| good	0.219 \| good
2025-09-04T15:00:00.000Z	64 \| moderate	16.035 \| fine	72.465 \| fine	18.662 \| good	0.235 \| good	9.5 \| good	0.177 \| good
2025-09-04T16:00:00.000Z	73 \| moderate	21.031 \| fine	89.706 \| fine	11.915 \| good	0.309 \| good	9.108 \| good	0.2 \| good
2025-09-04T17:00:00.000Z	75 \| moderate	21.589 \| fine	71.645 \| fine	16.346 \| good	0.466 \| good	7.402 \| good	0.224 \| good
2025-09-04T18:00:00.000Z	122 \| sensitive	43.923 \| moderate	148.047 \| fine	12.531 \| good	0.564 \| good	7.27 \| good	0.2 \| good
2025-09-04T19:00:00.000Z	151 \| unhealthy	56.303 \| poor	178.323 \| moderate	13.849 \| good	0.527 \| good	6.907 \| good	0.257 \| good
2025-09-04T20:00:00.000Z	159 \| unhealthy	67.265 \| poor	170.689 \| moderate	12.521 \| good	0.514 \| good	6.554 \| good	0.233 \| good
2025-09-04T21:00:00.000Z	147 \| sensitive	53.767 \| moderate	144.596 \| fine	17.044 \| good	0.486 \| good	6.023 \| good	0.242 \| good
2025-09-04T22:00:00.000Z	132 \| sensitive	47.521 \| moderate	132.559 \| fine	18.787 \| good	0.464 \| good	5.816 \| good	0.308 \| good
2025-09-04T23:00:00.000Z	96 \| moderate	32.631 \| fine	116.071 \| fine	20.28 \| good	0.518 \| good	7.05 \| good	0.308 \| good
2025-09-05T00:00:00.000Z	96 \| moderate	32.856 \| fine	138.372 \| fine	19.181 \| good	0.559 \| good	6.863 \| good	0.284 \| good
2025-09-05T01:00:00.000Z	86 \| moderate	27.824 \| fine	102.364 \| fine	21.836 \| good	0.594 \| good	7.936 \| good	0.302 \| good
2025-09-05T02:00:00.000Z	84 \| moderate	27.109 \| fine	90.867 \| fine	25.368 \| good	0.622 \| good	10.707 \| good	0.325 \| good
2025-09-05T03:00:00.000Z	82 \| moderate	25.808 \| fine	81.781 \| fine	23.139 \| good	0.57 \| good	12.609 \| good	0.3 \| good
2025-09-05T04:00:00.000Z	84 \| moderate	26.732 \| fine	108.076 \| fine	18.797 \| good	0.509 \| good	14.403 \| good	0.265 \| good
2025-09-05T05:00:00.000Z	71 \| moderate	19.854 \| fine	50.487 \| good	17.957 \| good	0.429 \| good	12.163 \| good	0.288 \| good
2025-09-05T06:00:00.000Z	88 \| moderate	29.331 \| fine	122.835 \| fine	16.81 \| good	0.445 \| good	12.098 \| good	0.312 \| good
2025-09-05T07:00:00.000Z	73 \| moderate	21.225 \| fine	63.629 \| fine	18.005 \| good	0.345 \| good	12.81 \| good	0.296 \| good
2025-09-05T08:00:00.000Z	71 \| moderate	20.367 \| fine	65.621 \| fine	15.427 \| good	0.36 \| good	14.778 \| good	0.234 \| good
2025-09-05T09:00:00.000Z	71 \| moderate	19.683 \| fine	71.275 \| fine	14.564 \| good	0.313 \| good	13.586 \| good	0.212 \| good
2025-09-05T10:00:00.000Z	69 \| moderate	19.465 \| fine	68.245 \| fine	12.827 \| good	0.318 \| good	16.959 \| good	0.212 \| good
2025-09-05T11:00:00.000Z	73 \| moderate	21.234 \| fine	85.923 \| fine	8.812 \| good	0.315 \| good	9.112 \| good	0.23 \| good
2025-09-05T12:00:00.000Z	70 \| moderate	15.308 \| fine	92.712 \| fine	16.54 \| good	0.317 \| good	11.441 \| good	0.234 \| good
2025-09-05T13:00:00.000Z	84 \| moderate	26.033 \| fine	121.532 \| fine	10.206 \| good	0.324 \| good	13.834 \| good	0.216 \| good
2025-09-05T14:00:00.000Z	107 \| sensitive	38.282 \| moderate	155.64 \| moderate	9.392 \| good	0.489 \| good	12.233 \| good	0.281 \| good
2025-09-05T15:00:00.000Z	102 \| sensitive	36.483 \| moderate	118.368 \| fine	7.455 \| good	0.469 \| good	14.34 \| good	0.281 \| good
2025-09-05T16:00:00.000Z	122 \| sensitive	44.304 \| moderate	164.497 \| moderate	9.828 \| good	0.472 \| good	9.422 \| good	0.259 \| good
2025-09-05T17:00:00.000Z	92 \| moderate	31.397 \| fine	126.967 \| fine	9.069 \| good	0.559 \| good	9.908 \| good	0.282 \| good
2025-09-05T18:00:00.000Z	134 \| sensitive	48.608 \| moderate	174.169 \| moderate	8.352 \| good	0.625 \| good	10.628 \| good	0.3 \| good
2025-09-05T19:00:00.000Z	115 \| sensitive	41.317 \| moderate	116.595 \| fine	9.708 \| good	0.69 \| good	10.138 \| good	0.3 \| good
2025-09-05T20:00:00.000Z	119 \| sensitive	43.056 \| moderate	124.15 \| fine	13.992 \| good	0.562 \| good	8.52 \| good	0.276 \| good
2025-09-05T21:00:00.000Z	127 \| sensitive	46.102 \| moderate	208.288 \| moderate	18.227 \| good	0.512 \| good	7.858 \| good	0.296 \| good
2025-09-05T21:00:00.000Z	62 \| moderate	14.944 \| fine	61.736 \| fine	16.637 \| good	0.884 \| good	9.765 \| good	0.25 \| good
2025-09-05T20:00:00.000Z	189 \| unhealthy	109.832 \| poor	310.98 \| poor	26.438 \| good	1.152 \| good	2.587 \| good	0.46 \| good
2025-09-05T21:00:00.000Z	184 \| unhealthy	101.829 \| poor	302.34 \| poor	29.452 \| good	1.123 \| good	2.351 \| good	0.448 \| good
2025-09-05T22:00:00.000Z	181 \| unhealthy	99.02 \| poor	299.914 \| poor	30.29 \| good	1.403 \| good	3.481 \| good	0.503 \| good
2025-09-05T23:00:00.000Z	180 \| unhealthy	96.584 \| poor	297.604 \| poor	31.199 \| good	1.682 \| good	4.61 \| good	0.559 \| good
2025-09-06T00:00:00.000Z	177 \| unhealthy	92.353 \| poor	292.693 \| poor	34.406 \| good	1.962 \| good	5.74 \| good	0.614 \| good
2025-09-06T01:00:00.000Z	163 \| unhealthy	71.943 \| poor	272.152 \| poor	38.579 \| good	2.379 \| good	9.166 \| good	0.723 \| good
2025-09-06T02:00:00.000Z	115 \| sensitive	40.983 \| moderate	181.226 \| moderate	41.936 \| good	2.796 \| good	12.592 \| good	0.831 \| good
2025-09-06T03:00:00.000Z	77 \| moderate	23.113 \| fine	101.025 \| fine	44.547 \| good	3.213 \| good	16.017 \| good	0.939 \| good
2025-09-06T04:00:00.000Z	69 \| moderate	18.766 \| fine	82.997 \| fine	44.989 \| good	3.379 \| good	16.711 \| good	0.993 \| good
2025-09-06T05:00:00.000Z	67 \| moderate	17.654 \| fine	78.025 \| fine	44.08 \| good	3.544 \| good	17.405 \| good	1.047 \| good
2025-09-06T06:00:00.000Z	79 \| moderate	23.976 \| fine	104.617 \| fine	40.446 \| good	3.71 \| good	18.099 \| good	1.101 \| good
2025-09-06T07:00:00.000Z	79 \| moderate	23.951 \| fine	104.526 \| fine	42.378 \| good	3.623 \| good	18.531 \| good	1.106 \| good
2025-09-06T08:00:00.000Z	75 \| moderate	21.952 \| fine	96.039 \| fine	43.703 \| good	3.537 \| good	18.964 \| good	1.112 \| good
2025-09-06T09:00:00.000Z	77 \| moderate	23.444 \| fine	102.433 \| fine	42.257 \| good	3.45 \| good	19.396 \| good	1.117 \| good
2025-09-06T10:00:00.000Z	82 \| moderate	26.485 \| fine	115.354 \| fine	40.539 \| good	3.227 \| good	18.47 \| good	1.072 \| good
2025-09-06T11:00:00.000Z	81 \| moderate	24.98 \| fine	108.995 \| fine	40.757 \| good	3.004 \| good	17.543 \| good	1.026 \| good
2025-09-06T12:00:00.000Z	79 \| moderate	23.824 \| fine	104.114 \| fine	41.042 \| good	2.781 \| good	16.616 \| good	0.981 \| good
2025-09-06T13:00:00.000Z	100 \| moderate	34.907 \| fine	152.668 \| fine	35.39 \| good	2.594 \| good	15.381 \| good	0.941 \| good
2025-09-06T14:00:00.000Z	107 \| sensitive	37.691 \| moderate	165.613 \| moderate	32.436 \| good	2.407 \| good	14.145 \| good	0.902 \| good
2025-09-06T15:00:00.000Z	107 \| sensitive	38.172 \| moderate	167.544 \| moderate	34.967 \| good	2.22 \| good	12.91 \| good	0.862 \| good
2025-09-06T16:00:00.000Z	99 \| moderate	34.686 \| fine	151.762 \| fine	41.093 \| good	2.085 \| good	10.508 \| good	0.784 \| good
2025-09-06T17:00:00.000Z	110 \| sensitive	38.851 \| moderate	171.358 \| moderate	46.45 \| good	1.95 \| good	8.107 \| good	0.706 \| good
2025-09-06T18:00:00.000Z	157 \| unhealthy	64.273 \| poor	262.886 \| poor	46.545 \| good	1.815 \| good	5.705 \| good	0.628 \| good
2025-09-06T19:00:00.000Z	170 \| unhealthy	82.081 \| poor	282.241 \| poor	47.135 \| good	1.75 \| good	4.87 \| good	0.608 \| good
2025-09-06T20:00:00.000Z	171 \| unhealthy	84.448 \| poor	284.51 \| poor	50.815 \| good	1.685 \| good	4.034 \| good	0.587 \| good
2025-09-06T21:00:00.000Z	170 \| unhealthy	82.65 \| poor	283.051 \| poor	57.182 \| fine	1.62 \| good	3.199 \| good	0.567 \| good
2025-09-06T22:00:00.000Z	170 \| unhealthy	81.914 \| poor	281.73 \| poor	62.18 \| fine	1.701 \| good	3.808 \| good	0.569 \| good
2025-09-06T23:00:00.000Z	169 \| unhealthy	80.897 \| poor	281.069 \| poor	62.459 \| fine	1.781 \| good	4.418 \| good	0.571 \| good
2025-09-07T00:00:00.000Z	160 \| unhealthy	68.782 \| poor	268.421 \| poor	59.142 \| fine	1.862 \| good	5.028 \| good	0.574 \| good
2025-09-07T01:00:00.000Z	122 \| sensitive	43.741 \| moderate	195.664 \| moderate	51.33 \| good	2.014 \| good	7.223 \| good	0.619 \| good
2025-09-07T02:00:00.000Z	79 \| moderate	24.444 \| fine	106.794 \| fine	44.854 \| good	2.167 \| good	9.419 \| good	0.665 \| good
2025-09-07T03:00:00.000Z	69 \| moderate	19.208 \| fine	85.043 \| fine	41.164 \| good	2.32 \| good	11.615 \| good	0.711 \| good
2025-09-07T04:00:00.000Z	67 \| moderate	17.982 \| fine	79.65 \| fine	40.736 \| good	1.921 \| good	9.802 \| good	0.623 \| good
2025-09-07T05:00:00.000Z	64 \| moderate	16.456 \| fine	72.644 \| fine	41.549 \| good	1.523 \| good	7.989 \| good	0.535 \| good
2025-09-07T06:00:00.000Z	69 \| moderate	18.948 \| fine	84.087 \| fine	39.955 \| good	1.124 \| good	6.176 \| good	0.447 \| good
2025-09-07T07:00:00.000Z	69 \| moderate	19.241 \| fine	85.08 \| fine	39.89 \| good	0.958 \| good	5.633 \| good	0.42 \| good
2025-09-07T08:00:00.000Z	66 \| moderate	16.518 \| fine	73.741 \| fine	39.702 \| good	0.793 \| good	5.09 \| good	0.393 \| good
2025-09-07T09:00:00.000Z	64 \| moderate	16.361 \| fine	72.855 \| fine	39.235 \| good	0.627 \| good	4.548 \| good	0.365 \| good
2025-09-07T10:00:00.000Z	66 \| moderate	17.054 \| fine	75.759 \| fine	39.807 \| good	0.597 \| good	4.455 \| good	0.358 \| good
2025-09-07T11:00:00.000Z	64 \| moderate	15.541 \| fine	69.257 \| fine	40.791 \| good	0.567 \| good	4.362 \| good	0.35 \| good
2025-09-07T12:00:00.000Z	62 \| moderate	15.175 \| fine	67.784 \| fine	41.177 \| good	0.537 \| good	4.269 \| good	0.343 \| good
2025-09-07T13:00:00.000Z	69 \| moderate	18.698 \| fine	82.341 \| fine	39.801 \| good	0.595 \| good	4.702 \| good	0.351 \| good
2025-09-07T14:00:00.000Z	69 \| moderate	18.782 \| fine	83.483 \| fine	40.632 \| good	0.653 \| good	5.135 \| good	0.358 \| good
2025-09-07T15:00:00.000Z	67 \| moderate	18.407 \| fine	81.76 \| fine	41.894 \| good	0.711 \| good	5.569 \| good	0.366 \| good
2025-09-07T16:00:00.000Z	62 \| moderate	14.909 \| fine	66.421 \| fine	43.735 \| good	0.784 \| good	5.799 \| good	0.378 \| good
2025-09-07T17:00:00.000Z	60 \| moderate	14.104 \| fine	63.331 \| fine	45.465 \| good	0.858 \| good	6.03 \| good	0.39 \| good
2025-09-07T18:00:00.000Z	69 \| moderate	19.22 \| fine	84.493 \| fine	44.779 \| good	0.932 \| good	6.26 \| good	0.403 \| good
2025-09-07T19:00:00.000Z	73 \| moderate	21.167 \| fine	93.077 \| fine	43.81 \| good	1.309 \| good	7.598 \| good	0.486 \| good

Washington, USA live air quality index now

Major air pollutants in Washington, USA

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Air quality in cities of Washington, USA

Air quality in nearby states

Oregon, USA

Idaho, USA

Montana, USA

Utah, USA

Nevada, USA

Wyoming, USA

How accurate is Washington, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Washington, USA updated?

When was the worst air quality at Washington, USA in the last 24 hrs?

When was the best air quality at Washington, USA in the last 24 hrs?

What is the current air quality in Washington, USA?

What pollutant is the most common in Washington, USA?

What should I do if the air quality in Washington, USA is poor?

What is the current concentration of PM2.5 in Washington, USA?

What is the current concentration of PM10 in Washington, USA?

What is the current concentration of carbon monoxide (CO) in Washington, USA?

What is the current concentration of sulfur dioxide (SO2) in Washington, USA?

What is the current concentration of ozone (O3) in Washington, USA?

What is the current concentration of nitrogen dioxide (NO2) in Washington, USA?

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 Washington, USA?

What is the current concentration of PM₁₀ in Washington, USA?

What is the current concentration of sulfur dioxide (SO₂) in Washington, USA?

What is the current concentration of ozone (O₃) in Washington, USA?

What is the current concentration of nitrogen dioxide (NO₂) in Washington, USA?