What is the current concentration of PM10 in Westminster, California?

The current PM10 concentration at Westminster, California is 36.953 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Westminster, California?

The current sulfur dioxide (SO2) concentration at Westminster, California is 1.078 ppb.

What is the current concentration of ozone (O3) in Westminster, California?

The current ozone (O3) concentration at Westminster, California is 26.787 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Westminster, California?

The current nitrogen dioxide (NO2) concentration at Westminster, California is 14.136 ppb.

Westminster, California live air quality index now

Q: What is the current concentration of PM2.5 in Westminster, California?

The current PM2.5 concentration at Westminster, California is 13.595 μg/m3.

Stay updated with real-time air quality in Westminster, California 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

Westminster, California

Last updated: ... (Local time)

Major air pollutants in Westminster, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

14.22 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

36.58 μg/m³

155

255

425

605+

Ozone (O₃)

32.05 ppb

201

201+

Sulfur Dioxide (SO₂)

1.04 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

15.49 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.57 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Westminster, California

Get Live Pollen Counts

Westminster, California

Scroll To Air Quality Map

Track live Westminster, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-06T20:00:00.000Z	66 \| moderate	17.342 \| fine	61.563 \| fine	41.323 \| good	0.688 \| good	9.247 \| good	0.413 \| good
2026-08-06T21:00:00.000Z	66 \| moderate	16.554 \| fine	79.43 \| fine	44.298 \| good	0.63 \| good	7.003 \| good	0.343 \| good
2026-08-06T22:00:00.000Z	60 \| moderate	13.861 \| fine	50.323 \| good	46.521 \| good	0.543 \| good	7.641 \| good	0.348 \| good
2026-08-06T23:00:00.000Z	60 \| moderate	14.043 \| fine	70.27 \| fine	46.237 \| good	0.428 \| good	7.978 \| good	0.399 \| good
2026-08-07T00:00:00.000Z	54 \| moderate	11.35 \| good	46.009 \| good	44.021 \| good	0.633 \| good	8.819 \| good	0.466 \| good
2026-08-07T01:00:00.000Z	52 \| moderate	10.462 \| good	52.881 \| good	41.309 \| good	0.669 \| good	9.155 \| good	0.45 \| good
2026-08-07T02:00:00.000Z	49 \| good	9.498 \| good	36.776 \| good	39.407 \| good	0.752 \| good	9.469 \| good	0.399 \| good
2026-08-07T03:00:00.000Z	52 \| moderate	10.048 \| good	44.638 \| good	30.638 \| good	0.919 \| good	5.785 \| good	0.131 \| good
2026-08-07T04:00:00.000Z	52 \| moderate	10.065 \| good	30.984 \| good	38.329 \| good	0.485 \| good	9.526 \| good	0.39 \| good
2026-08-07T05:00:00.000Z	52 \| moderate	10.062 \| good	32.29 \| good	36.87 \| good	0.603 \| good	9.788 \| good	0.445 \| good
2026-08-07T06:00:00.000Z	49 \| good	9.339 \| good	28.668 \| good	33.354 \| good	0.463 \| good	9.176 \| good	0.466 \| good
2026-08-07T07:00:00.000Z	49 \| good	9.44 \| good	27.296 \| good	32.659 \| good	0.452 \| good	9.176 \| good	0.466 \| good
2026-08-07T08:00:00.000Z	49 \| good	8.511 \| good	31.453 \| good	29.04 \| good	0.312 \| good	10.932 \| good	0.402 \| good
2026-08-07T09:00:00.000Z	52 \| moderate	9.682 \| good	27.204 \| good	26.876 \| good	0.382 \| good	9.545 \| good	0.406 \| good
2026-08-07T10:00:00.000Z	49 \| good	9.218 \| good	27.014 \| good	24.977 \| good	0.345 \| good	9.175 \| good	0.272 \| good
2026-08-07T11:00:00.000Z	49 \| good	8.951 \| good	27.962 \| good	22.426 \| good	0.48 \| good	8.923 \| good	0.339 \| good
2026-08-07T12:00:00.000Z	49 \| good	9.447 \| good	28.025 \| good	22.224 \| good	0.488 \| good	8.923 \| good	0.339 \| good
2026-08-07T13:00:00.000Z	49 \| good	8.508 \| good	26.812 \| good	21.536 \| good	0.347 \| good	9.712 \| good	0.351 \| good
2026-08-07T14:00:00.000Z	56 \| moderate	11.962 \| good	62.823 \| fine	19.874 \| good	0.4 \| good	16.909 \| good	0.654 \| good
2026-08-07T15:00:00.000Z	66 \| moderate	11.894 \| good	86.279 \| fine	21.591 \| good	0.65 \| good	16.924 \| good	0.581 \| good
2026-08-07T16:00:00.000Z	64 \| moderate	13.218 \| fine	82.208 \| fine	24.733 \| good	0.751 \| good	14.613 \| good	0.57 \| good
2026-08-07T17:00:00.000Z	58 \| moderate	13.356 \| fine	44.687 \| good	27.425 \| good	0.659 \| good	11.89 \| good	0.431 \| good
2026-08-07T18:00:00.000Z	58 \| moderate	13.238 \| fine	52.079 \| good	35.008 \| good	0.539 \| good	11.224 \| good	0.423 \| good
2026-08-07T19:00:00.000Z	60 \| moderate	14.069 \| fine	52.81 \| good	40.647 \| good	0.54 \| good	13.498 \| good	0.501 \| good
2026-08-07T20:00:00.000Z	60 \| moderate	14.287 \| fine	56.636 \| fine	42.785 \| good	0.583 \| good	12.357 \| good	0.406 \| good
2026-08-07T21:00:00.000Z	60 \| moderate	13.961 \| fine	51.215 \| good	46.016 \| good	0.601 \| good	10.965 \| good	0.411 \| good
2026-08-07T22:00:00.000Z	54 \| moderate	11.028 \| good	41.014 \| good	49.323 \| good	0.518 \| good	8.62 \| good	0.339 \| good
2026-08-07T23:00:00.000Z	56 \| moderate	11.695 \| good	48.389 \| good	47.504 \| good	0.496 \| good	9.28 \| good	0.407 \| good
2026-08-08T00:00:00.000Z	52 \| moderate	10.226 \| good	42.923 \| good	47.737 \| good	0.933 \| good	9.5 \| good	0.479 \| good
2026-08-08T01:00:00.000Z	49 \| good	8.714 \| good	34.006 \| good	46.675 \| good	0.975 \| good	9.919 \| good	0.466 \| good
2026-08-08T02:00:00.000Z	44 \| good	8.416 \| good	32.082 \| good	44.738 \| good	0.569 \| good	10.714 \| good	0.466 \| good
2026-08-08T03:00:00.000Z	58 \| moderate	12.938 \| fine	58.083 \| fine	31.968 \| good	0.944 \| good	5.282 \| good	0.146 \| good
2026-08-08T04:00:00.000Z	49 \| good	8.551 \| good	32.196 \| good	35.962 \| good	0.535 \| good	11.672 \| good	0.479 \| good
2026-08-08T05:00:00.000Z	49 \| good	9.054 \| good	29.677 \| good	32.687 \| good	0.633 \| good	11.287 \| good	0.479 \| good
2026-08-08T06:00:00.000Z	52 \| moderate	10.249 \| good	34.394 \| good	31.846 \| good	0.403 \| good	10.182 \| good	0.483 \| good
2026-08-08T07:00:00.000Z	52 \| moderate	9.715 \| good	32.938 \| good	30.866 \| good	0.398 \| good	10.182 \| good	0.483 \| good
2026-08-08T08:00:00.000Z	54 \| moderate	11.103 \| good	32.408 \| good	24.822 \| good	0.401 \| good	10.72 \| good	0.545 \| good
2026-08-08T09:00:00.000Z	56 \| moderate	11.505 \| good	32.301 \| good	21.211 \| good	0.502 \| good	12.073 \| good	0.478 \| good
2026-08-08T10:00:00.000Z	54 \| moderate	11.086 \| good	33.575 \| good	20.25 \| good	0.443 \| good	11.483 \| good	0.477 \| good
2026-08-08T11:00:00.000Z	54 \| moderate	10.66 \| good	28.887 \| good	19.073 \| good	0.503 \| good	11.454 \| good	0.41 \| good
2026-08-08T12:00:00.000Z	52 \| moderate	10.337 \| good	26.384 \| good	15.322 \| good	0.395 \| good	11.766 \| good	0.482 \| good
2026-08-08T13:00:00.000Z	54 \| moderate	11.068 \| good	31.159 \| good	16.106 \| good	0.395 \| good	11.766 \| good	0.481 \| good
2026-08-08T14:00:00.000Z	52 \| moderate	10.341 \| good	33.788 \| good	14.736 \| good	0.357 \| good	14.636 \| good	0.576 \| good
2026-08-08T15:00:00.000Z	56 \| moderate	11.551 \| good	32.212 \| good	17.315 \| good	0.65 \| good	15.063 \| good	0.52 \| good
2026-08-08T16:00:00.000Z	58 \| moderate	12.87 \| fine	41.697 \| good	21.414 \| good	0.73 \| good	13.684 \| good	0.511 \| good
2026-08-08T17:00:00.000Z	60 \| moderate	13.595 \| fine	36.953 \| good	26.787 \| good	1.078 \| good	14.136 \| good	0.574 \| good
2026-08-08T18:00:00.000Z	60 \| moderate	14.217 \| fine	36.579 \| good	32.051 \| good	1.045 \| good	15.494 \| good	0.574 \| good
2026-08-08T19:00:00.000Z	62 \| moderate	15.187 \| fine	49.011 \| good	40.648 \| good	0.85 \| good	12.256 \| good	0.481 \| good
2026-08-08T19:00:00.000Z	60 \| moderate	14.217 \| fine	36.579 \| good	32.051 \| good	1.045 \| good	15.494 \| good	0.574 \| good
2026-08-08T18:00:00.000Z	58 \| moderate	13.411 \| fine	60.541 \| fine	42.284 \| good	1.153 \| good	6.309 \| good	0.128 \| good
2026-08-08T19:00:00.000Z	66 \| moderate	17.229 \| fine	76.445 \| fine	47.602 \| good	1.148 \| good	5.188 \| good	0.129 \| good
2026-08-08T20:00:00.000Z	56 \| moderate	12.498 \| fine	56.319 \| fine	52.996 \| good	1.131 \| good	4.026 \| good	0.131 \| good
2026-08-08T21:00:00.000Z	60 \| moderate	14.193 \| fine	63.316 \| fine	55.715 \| fine	1.158 \| good	2.902 \| good	0.132 \| good
2026-08-08T22:00:00.000Z	54 \| moderate	10.521 \| good	46.512 \| good	50.648 \| good	1.148 \| good	2.306 \| good	0.133 \| good
2026-08-08T23:00:00.000Z	52 \| moderate	9.907 \| good	43.844 \| good	45.15 \| good	1.104 \| good	2.046 \| good	0.132 \| good
2026-08-09T00:00:00.000Z	49 \| good	8.899 \| good	39.455 \| good	39.076 \| good	1.027 \| good	2.184 \| good	0.129 \| good
2026-08-09T01:00:00.000Z	49 \| good	8.764 \| good	39.002 \| good	38.169 \| good	0.938 \| good	2.689 \| good	0.126 \| good
2026-08-09T02:00:00.000Z	52 \| moderate	9.813 \| good	43.403 \| good	32.757 \| good	0.86 \| good	3.711 \| good	0.124 \| good
2026-08-09T03:00:00.000Z	54 \| moderate	11.181 \| good	49.255 \| good	33.148 \| good	0.794 \| good	5.13 \| good	0.124 \| good
2026-08-09T04:00:00.000Z	52 \| moderate	9.65 \| good	42.642 \| good	31.525 \| good	0.775 \| good	6.12 \| good	0.125 \| good
2026-08-09T05:00:00.000Z	44 \| good	8.397 \| good	37.022 \| good	30.252 \| good	0.751 \| good	7.012 \| good	0.126 \| good
2026-08-09T06:00:00.000Z	44 \| good	7.668 \| good	33.567 \| good	27.898 \| good	0.734 \| good	7.983 \| good	0.129 \| good
2026-08-09T07:00:00.000Z	44 \| good	8.333 \| good	36.59 \| good	27.602 \| good	0.707 \| good	8.675 \| good	0.132 \| good
2026-08-09T08:00:00.000Z	52 \| moderate	9.736 \| good	43.301 \| good	27.225 \| good	0.673 \| good	8.446 \| good	0.133 \| good
2026-08-09T09:00:00.000Z	44 \| good	7.77 \| good	34.148 \| good	26.237 \| good	0.66 \| good	8.622 \| good	0.135 \| good
2026-08-09T10:00:00.000Z	38 \| good	7.439 \| good	32.374 \| good	24.244 \| good	0.65 \| good	9.236 \| good	0.137 \| good
2026-08-09T11:00:00.000Z	44 \| good	7.959 \| good	34.735 \| good	21.846 \| good	0.641 \| good	10.053 \| good	0.14 \| good
2026-08-09T12:00:00.000Z	38 \| good	7.08 \| good	31.465 \| good	20.681 \| good	0.645 \| good	11.066 \| good	0.144 \| good
2026-08-09T13:00:00.000Z	49 \| good	8.958 \| good	39.374 \| good	17.813 \| good	0.667 \| good	12.028 \| good	0.15 \| good
2026-08-09T14:00:00.000Z	54 \| moderate	10.878 \| good	48.073 \| good	17.423 \| good	0.715 \| good	10.855 \| good	0.16 \| good
2026-08-09T15:00:00.000Z	58 \| moderate	12.738 \| fine	57.394 \| fine	20.954 \| good	0.824 \| good	7.954 \| good	0.142 \| good
2026-08-09T16:00:00.000Z	58 \| moderate	12.549 \| fine	55.748 \| fine	25.855 \| good	0.881 \| good	6.166 \| good	0.133 \| good
2026-08-09T17:00:00.000Z	60 \| moderate	13.614 \| fine	61.292 \| fine	31.823 \| good	0.942 \| good	5.279 \| good	0.131 \| good
2026-08-09T18:00:00.000Z	62 \| moderate	15.193 \| fine	67.931 \| fine	36.64 \| good	0.954 \| good	4.546 \| good	0.129 \| good
2026-08-09T19:00:00.000Z	62 \| moderate	15.433 \| fine	68.892 \| fine	43.178 \| good	0.969 \| good	3.853 \| good	0.127 \| good
2026-08-09T20:00:00.000Z	56 \| moderate	12.012 \| good	53.645 \| good	49.788 \| good	0.967 \| good	3.313 \| good	0.125 \| good
2026-08-09T21:00:00.000Z	62 \| moderate	14.709 \| fine	65.772 \| fine	54.014 \| good	0.958 \| good	2.901 \| good	0.123 \| good
2026-08-09T22:00:00.000Z	56 \| moderate	12.137 \| fine	54.257 \| good	49.641 \| good	0.948 \| good	2.601 \| good	0.12 \| good
2026-08-09T23:00:00.000Z	52 \| moderate	10.303 \| good	45.848 \| good	41.73 \| good	0.953 \| good	2.454 \| good	0.118 \| good
2026-08-10T00:00:00.000Z	52 \| moderate	10.089 \| good	44.813 \| good	37.528 \| good	0.94 \| good	2.589 \| good	0.116 \| good
2026-08-10T01:00:00.000Z	49 \| good	8.873 \| good	38.96 \| good	34.352 \| good	0.929 \| good	3.31 \| good	0.116 \| good
2026-08-10T02:00:00.000Z	38 \| good	6.716 \| good	29.806 \| good	27.218 \| good	0.904 \| good	4.441 \| good	0.116 \| good
2026-08-10T03:00:00.000Z	49 \| good	9.044 \| good	39.788 \| good	28.484 \| good	0.863 \| good	5.534 \| good	0.115 \| good
2026-08-10T04:00:00.000Z	44 \| good	8.111 \| good	35.583 \| good	26.603 \| good	0.852 \| good	5.907 \| good	0.114 \| good
2026-08-10T05:00:00.000Z	33 \| good	6.16 \| good	27.508 \| good	24.886 \| good	0.839 \| good	6.313 \| good	0.114 \| good
2026-08-10T06:00:00.000Z	38 \| good	6.619 \| good	29.655 \| good	25.599 \| good	0.828 \| good	6.88 \| good	0.114 \| good
2026-08-10T07:00:00.000Z	38 \| good	7.372 \| good	32.437 \| good	25.478 \| good	0.81 \| good	7.505 \| good	0.116 \| good
2026-08-10T08:00:00.000Z	44 \| good	7.841 \| good	34.373 \| good	26.482 \| good	0.785 \| good	7.636 \| good	0.117 \| good
2026-08-10T09:00:00.000Z	33 \| good	6.184 \| good	27.478 \| good	26.287 \| good	0.781 \| good	8.565 \| good	0.119 \| good
2026-08-10T10:00:00.000Z	44 \| good	7.506 \| good	32.894 \| good	23.085 \| good	0.793 \| good	9.829 \| good	0.123 \| good
2026-08-10T11:00:00.000Z	38 \| good	7.147 \| good	31.482 \| good	20.243 \| good	0.801 \| good	11.604 \| good	0.129 \| good
2026-08-10T12:00:00.000Z	33 \| good	6.325 \| good	28.306 \| good	20.995 \| good	0.802 \| good	12.056 \| good	0.135 \| good
2026-08-10T13:00:00.000Z	52 \| moderate	10.364 \| good	45.952 \| good	13.53 \| good	0.813 \| good	12.069 \| good	0.141 \| good
2026-08-10T14:00:00.000Z	56 \| moderate	11.614 \| good	51.759 \| good	14.835 \| good	0.854 \| good	10.783 \| good	0.151 \| good
2026-08-10T15:00:00.000Z	58 \| moderate	12.704 \| fine	56.742 \| fine	17.655 \| good	0.956 \| good	7.891 \| good	0.131 \| good
2026-08-10T16:00:00.000Z	60 \| moderate	13.618 \| fine	61.435 \| fine	21.712 \| good	1.019 \| good	6.134 \| good	0.124 \| good
2026-08-10T17:00:00.000Z	56 \| moderate	12.485 \| fine	55.377 \| fine	30.794 \| good	1.063 \| good	5.16 \| good	0.122 \| good

Westminster

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Westminster, California air quality map: Track AQI near you

0.39ppm

How accurate is California, USA air quality data?

Air quality data and pollutant measurements for California, 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 Westminster, California updated?

The air quality for Westminster, California is updated every hour.

When was the worst air quality at Westminster, California in the last 24 hrs?

The worst air quality in Westminster, California in the last 24 hours was observed at 09:00:00 on 2026-08-07.

When was the best air quality at Westminster, California in the last 24 hrs?

In the last 24 hrs, the best air quality in Westminster, California was observed at 02:00:00 on 2026-08-08.

What is the current air quality in Westminster, California?

The current air quality in Westminster, California is 60, categorized as Moderate based on real-time data.

What pollutant is the most common in Westminster, California?

The most common pollutant in Westminster, California is PM2.5.

What should I do if the air quality in Westminster, California is poor?

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

What is the current concentration of PM_2.5 in Westminster, California?

The current PM_2.5 concentration at Westminster, California is 13.595 μg/m³.

What is the current concentration of PM₁₀ in Westminster, California?

The current PM₁₀ concentration at Westminster, California is 36.953 μg/m³.

What is the current concentration of carbon monoxide (CO) in Westminster, California?

The current carbon monoxide (CO) concentration at Westminster, California is 0.574 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Westminster, California?

The current sulfur dioxide (SO₂) concentration at Westminster, California is 1.078 ppb.

What is the current concentration of ozone (O₃) in Westminster, California?

The current ozone (O₃) concentration at Westminster, California is 26.787 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Westminster, California?

The current nitrogen dioxide (NO₂) concentration at Westminster, California is 14.136 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-08-06T20:00:00.000Z	66 \| moderate	17.342 \| fine	61.563 \| fine	41.323 \| good	0.688 \| good	9.247 \| good	0.413 \| good
2026-08-06T21:00:00.000Z	66 \| moderate	16.554 \| fine	79.43 \| fine	44.298 \| good	0.63 \| good	7.003 \| good	0.343 \| good
2026-08-06T22:00:00.000Z	60 \| moderate	13.861 \| fine	50.323 \| good	46.521 \| good	0.543 \| good	7.641 \| good	0.348 \| good
2026-08-06T23:00:00.000Z	60 \| moderate	14.043 \| fine	70.27 \| fine	46.237 \| good	0.428 \| good	7.978 \| good	0.399 \| good
2026-08-07T00:00:00.000Z	54 \| moderate	11.35 \| good	46.009 \| good	44.021 \| good	0.633 \| good	8.819 \| good	0.466 \| good
2026-08-07T01:00:00.000Z	52 \| moderate	10.462 \| good	52.881 \| good	41.309 \| good	0.669 \| good	9.155 \| good	0.45 \| good
2026-08-07T02:00:00.000Z	49 \| good	9.498 \| good	36.776 \| good	39.407 \| good	0.752 \| good	9.469 \| good	0.399 \| good
2026-08-07T03:00:00.000Z	52 \| moderate	10.048 \| good	44.638 \| good	30.638 \| good	0.919 \| good	5.785 \| good	0.131 \| good
2026-08-07T04:00:00.000Z	52 \| moderate	10.065 \| good	30.984 \| good	38.329 \| good	0.485 \| good	9.526 \| good	0.39 \| good
2026-08-07T05:00:00.000Z	52 \| moderate	10.062 \| good	32.29 \| good	36.87 \| good	0.603 \| good	9.788 \| good	0.445 \| good
2026-08-07T06:00:00.000Z	49 \| good	9.339 \| good	28.668 \| good	33.354 \| good	0.463 \| good	9.176 \| good	0.466 \| good
2026-08-07T07:00:00.000Z	49 \| good	9.44 \| good	27.296 \| good	32.659 \| good	0.452 \| good	9.176 \| good	0.466 \| good
2026-08-07T08:00:00.000Z	49 \| good	8.511 \| good	31.453 \| good	29.04 \| good	0.312 \| good	10.932 \| good	0.402 \| good
2026-08-07T09:00:00.000Z	52 \| moderate	9.682 \| good	27.204 \| good	26.876 \| good	0.382 \| good	9.545 \| good	0.406 \| good
2026-08-07T10:00:00.000Z	49 \| good	9.218 \| good	27.014 \| good	24.977 \| good	0.345 \| good	9.175 \| good	0.272 \| good
2026-08-07T11:00:00.000Z	49 \| good	8.951 \| good	27.962 \| good	22.426 \| good	0.48 \| good	8.923 \| good	0.339 \| good
2026-08-07T12:00:00.000Z	49 \| good	9.447 \| good	28.025 \| good	22.224 \| good	0.488 \| good	8.923 \| good	0.339 \| good
2026-08-07T13:00:00.000Z	49 \| good	8.508 \| good	26.812 \| good	21.536 \| good	0.347 \| good	9.712 \| good	0.351 \| good
2026-08-07T14:00:00.000Z	56 \| moderate	11.962 \| good	62.823 \| fine	19.874 \| good	0.4 \| good	16.909 \| good	0.654 \| good
2026-08-07T15:00:00.000Z	66 \| moderate	11.894 \| good	86.279 \| fine	21.591 \| good	0.65 \| good	16.924 \| good	0.581 \| good
2026-08-07T16:00:00.000Z	64 \| moderate	13.218 \| fine	82.208 \| fine	24.733 \| good	0.751 \| good	14.613 \| good	0.57 \| good
2026-08-07T17:00:00.000Z	58 \| moderate	13.356 \| fine	44.687 \| good	27.425 \| good	0.659 \| good	11.89 \| good	0.431 \| good
2026-08-07T18:00:00.000Z	58 \| moderate	13.238 \| fine	52.079 \| good	35.008 \| good	0.539 \| good	11.224 \| good	0.423 \| good
2026-08-07T19:00:00.000Z	60 \| moderate	14.069 \| fine	52.81 \| good	40.647 \| good	0.54 \| good	13.498 \| good	0.501 \| good
2026-08-07T20:00:00.000Z	60 \| moderate	14.287 \| fine	56.636 \| fine	42.785 \| good	0.583 \| good	12.357 \| good	0.406 \| good
2026-08-07T21:00:00.000Z	60 \| moderate	13.961 \| fine	51.215 \| good	46.016 \| good	0.601 \| good	10.965 \| good	0.411 \| good
2026-08-07T22:00:00.000Z	54 \| moderate	11.028 \| good	41.014 \| good	49.323 \| good	0.518 \| good	8.62 \| good	0.339 \| good
2026-08-07T23:00:00.000Z	56 \| moderate	11.695 \| good	48.389 \| good	47.504 \| good	0.496 \| good	9.28 \| good	0.407 \| good
2026-08-08T00:00:00.000Z	52 \| moderate	10.226 \| good	42.923 \| good	47.737 \| good	0.933 \| good	9.5 \| good	0.479 \| good
2026-08-08T01:00:00.000Z	49 \| good	8.714 \| good	34.006 \| good	46.675 \| good	0.975 \| good	9.919 \| good	0.466 \| good
2026-08-08T02:00:00.000Z	44 \| good	8.416 \| good	32.082 \| good	44.738 \| good	0.569 \| good	10.714 \| good	0.466 \| good
2026-08-08T03:00:00.000Z	58 \| moderate	12.938 \| fine	58.083 \| fine	31.968 \| good	0.944 \| good	5.282 \| good	0.146 \| good
2026-08-08T04:00:00.000Z	49 \| good	8.551 \| good	32.196 \| good	35.962 \| good	0.535 \| good	11.672 \| good	0.479 \| good
2026-08-08T05:00:00.000Z	49 \| good	9.054 \| good	29.677 \| good	32.687 \| good	0.633 \| good	11.287 \| good	0.479 \| good
2026-08-08T06:00:00.000Z	52 \| moderate	10.249 \| good	34.394 \| good	31.846 \| good	0.403 \| good	10.182 \| good	0.483 \| good
2026-08-08T07:00:00.000Z	52 \| moderate	9.715 \| good	32.938 \| good	30.866 \| good	0.398 \| good	10.182 \| good	0.483 \| good
2026-08-08T08:00:00.000Z	54 \| moderate	11.103 \| good	32.408 \| good	24.822 \| good	0.401 \| good	10.72 \| good	0.545 \| good
2026-08-08T09:00:00.000Z	56 \| moderate	11.505 \| good	32.301 \| good	21.211 \| good	0.502 \| good	12.073 \| good	0.478 \| good
2026-08-08T10:00:00.000Z	54 \| moderate	11.086 \| good	33.575 \| good	20.25 \| good	0.443 \| good	11.483 \| good	0.477 \| good
2026-08-08T11:00:00.000Z	54 \| moderate	10.66 \| good	28.887 \| good	19.073 \| good	0.503 \| good	11.454 \| good	0.41 \| good
2026-08-08T12:00:00.000Z	52 \| moderate	10.337 \| good	26.384 \| good	15.322 \| good	0.395 \| good	11.766 \| good	0.482 \| good
2026-08-08T13:00:00.000Z	54 \| moderate	11.068 \| good	31.159 \| good	16.106 \| good	0.395 \| good	11.766 \| good	0.481 \| good
2026-08-08T14:00:00.000Z	52 \| moderate	10.341 \| good	33.788 \| good	14.736 \| good	0.357 \| good	14.636 \| good	0.576 \| good
2026-08-08T15:00:00.000Z	56 \| moderate	11.551 \| good	32.212 \| good	17.315 \| good	0.65 \| good	15.063 \| good	0.52 \| good
2026-08-08T16:00:00.000Z	58 \| moderate	12.87 \| fine	41.697 \| good	21.414 \| good	0.73 \| good	13.684 \| good	0.511 \| good
2026-08-08T17:00:00.000Z	60 \| moderate	13.595 \| fine	36.953 \| good	26.787 \| good	1.078 \| good	14.136 \| good	0.574 \| good
2026-08-08T18:00:00.000Z	60 \| moderate	14.217 \| fine	36.579 \| good	32.051 \| good	1.045 \| good	15.494 \| good	0.574 \| good
2026-08-08T19:00:00.000Z	62 \| moderate	15.187 \| fine	49.011 \| good	40.648 \| good	0.85 \| good	12.256 \| good	0.481 \| good
2026-08-08T19:00:00.000Z	60 \| moderate	14.217 \| fine	36.579 \| good	32.051 \| good	1.045 \| good	15.494 \| good	0.574 \| good
2026-08-08T18:00:00.000Z	58 \| moderate	13.411 \| fine	60.541 \| fine	42.284 \| good	1.153 \| good	6.309 \| good	0.128 \| good
2026-08-08T19:00:00.000Z	66 \| moderate	17.229 \| fine	76.445 \| fine	47.602 \| good	1.148 \| good	5.188 \| good	0.129 \| good
2026-08-08T20:00:00.000Z	56 \| moderate	12.498 \| fine	56.319 \| fine	52.996 \| good	1.131 \| good	4.026 \| good	0.131 \| good
2026-08-08T21:00:00.000Z	60 \| moderate	14.193 \| fine	63.316 \| fine	55.715 \| fine	1.158 \| good	2.902 \| good	0.132 \| good
2026-08-08T22:00:00.000Z	54 \| moderate	10.521 \| good	46.512 \| good	50.648 \| good	1.148 \| good	2.306 \| good	0.133 \| good
2026-08-08T23:00:00.000Z	52 \| moderate	9.907 \| good	43.844 \| good	45.15 \| good	1.104 \| good	2.046 \| good	0.132 \| good
2026-08-09T00:00:00.000Z	49 \| good	8.899 \| good	39.455 \| good	39.076 \| good	1.027 \| good	2.184 \| good	0.129 \| good
2026-08-09T01:00:00.000Z	49 \| good	8.764 \| good	39.002 \| good	38.169 \| good	0.938 \| good	2.689 \| good	0.126 \| good
2026-08-09T02:00:00.000Z	52 \| moderate	9.813 \| good	43.403 \| good	32.757 \| good	0.86 \| good	3.711 \| good	0.124 \| good
2026-08-09T03:00:00.000Z	54 \| moderate	11.181 \| good	49.255 \| good	33.148 \| good	0.794 \| good	5.13 \| good	0.124 \| good
2026-08-09T04:00:00.000Z	52 \| moderate	9.65 \| good	42.642 \| good	31.525 \| good	0.775 \| good	6.12 \| good	0.125 \| good
2026-08-09T05:00:00.000Z	44 \| good	8.397 \| good	37.022 \| good	30.252 \| good	0.751 \| good	7.012 \| good	0.126 \| good
2026-08-09T06:00:00.000Z	44 \| good	7.668 \| good	33.567 \| good	27.898 \| good	0.734 \| good	7.983 \| good	0.129 \| good
2026-08-09T07:00:00.000Z	44 \| good	8.333 \| good	36.59 \| good	27.602 \| good	0.707 \| good	8.675 \| good	0.132 \| good
2026-08-09T08:00:00.000Z	52 \| moderate	9.736 \| good	43.301 \| good	27.225 \| good	0.673 \| good	8.446 \| good	0.133 \| good
2026-08-09T09:00:00.000Z	44 \| good	7.77 \| good	34.148 \| good	26.237 \| good	0.66 \| good	8.622 \| good	0.135 \| good
2026-08-09T10:00:00.000Z	38 \| good	7.439 \| good	32.374 \| good	24.244 \| good	0.65 \| good	9.236 \| good	0.137 \| good
2026-08-09T11:00:00.000Z	44 \| good	7.959 \| good	34.735 \| good	21.846 \| good	0.641 \| good	10.053 \| good	0.14 \| good
2026-08-09T12:00:00.000Z	38 \| good	7.08 \| good	31.465 \| good	20.681 \| good	0.645 \| good	11.066 \| good	0.144 \| good
2026-08-09T13:00:00.000Z	49 \| good	8.958 \| good	39.374 \| good	17.813 \| good	0.667 \| good	12.028 \| good	0.15 \| good
2026-08-09T14:00:00.000Z	54 \| moderate	10.878 \| good	48.073 \| good	17.423 \| good	0.715 \| good	10.855 \| good	0.16 \| good
2026-08-09T15:00:00.000Z	58 \| moderate	12.738 \| fine	57.394 \| fine	20.954 \| good	0.824 \| good	7.954 \| good	0.142 \| good
2026-08-09T16:00:00.000Z	58 \| moderate	12.549 \| fine	55.748 \| fine	25.855 \| good	0.881 \| good	6.166 \| good	0.133 \| good
2026-08-09T17:00:00.000Z	60 \| moderate	13.614 \| fine	61.292 \| fine	31.823 \| good	0.942 \| good	5.279 \| good	0.131 \| good
2026-08-09T18:00:00.000Z	62 \| moderate	15.193 \| fine	67.931 \| fine	36.64 \| good	0.954 \| good	4.546 \| good	0.129 \| good
2026-08-09T19:00:00.000Z	62 \| moderate	15.433 \| fine	68.892 \| fine	43.178 \| good	0.969 \| good	3.853 \| good	0.127 \| good
2026-08-09T20:00:00.000Z	56 \| moderate	12.012 \| good	53.645 \| good	49.788 \| good	0.967 \| good	3.313 \| good	0.125 \| good
2026-08-09T21:00:00.000Z	62 \| moderate	14.709 \| fine	65.772 \| fine	54.014 \| good	0.958 \| good	2.901 \| good	0.123 \| good
2026-08-09T22:00:00.000Z	56 \| moderate	12.137 \| fine	54.257 \| good	49.641 \| good	0.948 \| good	2.601 \| good	0.12 \| good
2026-08-09T23:00:00.000Z	52 \| moderate	10.303 \| good	45.848 \| good	41.73 \| good	0.953 \| good	2.454 \| good	0.118 \| good
2026-08-10T00:00:00.000Z	52 \| moderate	10.089 \| good	44.813 \| good	37.528 \| good	0.94 \| good	2.589 \| good	0.116 \| good
2026-08-10T01:00:00.000Z	49 \| good	8.873 \| good	38.96 \| good	34.352 \| good	0.929 \| good	3.31 \| good	0.116 \| good
2026-08-10T02:00:00.000Z	38 \| good	6.716 \| good	29.806 \| good	27.218 \| good	0.904 \| good	4.441 \| good	0.116 \| good
2026-08-10T03:00:00.000Z	49 \| good	9.044 \| good	39.788 \| good	28.484 \| good	0.863 \| good	5.534 \| good	0.115 \| good
2026-08-10T04:00:00.000Z	44 \| good	8.111 \| good	35.583 \| good	26.603 \| good	0.852 \| good	5.907 \| good	0.114 \| good
2026-08-10T05:00:00.000Z	33 \| good	6.16 \| good	27.508 \| good	24.886 \| good	0.839 \| good	6.313 \| good	0.114 \| good
2026-08-10T06:00:00.000Z	38 \| good	6.619 \| good	29.655 \| good	25.599 \| good	0.828 \| good	6.88 \| good	0.114 \| good
2026-08-10T07:00:00.000Z	38 \| good	7.372 \| good	32.437 \| good	25.478 \| good	0.81 \| good	7.505 \| good	0.116 \| good
2026-08-10T08:00:00.000Z	44 \| good	7.841 \| good	34.373 \| good	26.482 \| good	0.785 \| good	7.636 \| good	0.117 \| good
2026-08-10T09:00:00.000Z	33 \| good	6.184 \| good	27.478 \| good	26.287 \| good	0.781 \| good	8.565 \| good	0.119 \| good
2026-08-10T10:00:00.000Z	44 \| good	7.506 \| good	32.894 \| good	23.085 \| good	0.793 \| good	9.829 \| good	0.123 \| good
2026-08-10T11:00:00.000Z	38 \| good	7.147 \| good	31.482 \| good	20.243 \| good	0.801 \| good	11.604 \| good	0.129 \| good
2026-08-10T12:00:00.000Z	33 \| good	6.325 \| good	28.306 \| good	20.995 \| good	0.802 \| good	12.056 \| good	0.135 \| good
2026-08-10T13:00:00.000Z	52 \| moderate	10.364 \| good	45.952 \| good	13.53 \| good	0.813 \| good	12.069 \| good	0.141 \| good
2026-08-10T14:00:00.000Z	56 \| moderate	11.614 \| good	51.759 \| good	14.835 \| good	0.854 \| good	10.783 \| good	0.151 \| good
2026-08-10T15:00:00.000Z	58 \| moderate	12.704 \| fine	56.742 \| fine	17.655 \| good	0.956 \| good	7.891 \| good	0.131 \| good
2026-08-10T16:00:00.000Z	60 \| moderate	13.618 \| fine	61.435 \| fine	21.712 \| good	1.019 \| good	6.134 \| good	0.124 \| good
2026-08-10T17:00:00.000Z	56 \| moderate	12.485 \| fine	55.377 \| fine	30.794 \| good	1.063 \| good	5.16 \| good	0.122 \| good

Westminster, California live air quality index now

Major air pollutants in Westminster, California

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 nearby cities

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Rossmoor, California

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What is the current concentration of sulfur dioxide (SO2) in Westminster, California?

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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Westminster, California?

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