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

The current PM10 concentration at Westminster, California is 17.672 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Westminster, California is 0.489 ppb.

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

The current ozone (O3) concentration at Westminster, California is 29.965 ppm.

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

The current nitrogen dioxide (NO2) concentration at Westminster, California is 10.021 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 6.151 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)

Good

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)

6.15 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.67 μg/m³

155

255

425

605+

Ozone (O₃)

29.96 ppb

201

201+

Sulfur Dioxide (SO₂)

0.49 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

10.02 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.35 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Very high

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
2026-04-22T12:00:00.000Z	27 \| good	5.095 \| good	13.153 \| good	22.596 \| good	0.501 \| good	20.456 \| good	0.539 \| good
2026-04-22T13:00:00.000Z	27 \| good	5.315 \| good	15.926 \| good	21.002 \| good	0.548 \| good	23.922 \| good	0.792 \| good
2026-04-22T14:00:00.000Z	38 \| good	6.516 \| good	23.482 \| good	17.366 \| good	0.479 \| good	25.142 \| good	0.782 \| good
2026-04-22T15:00:00.000Z	44 \| good	8.167 \| good	26.462 \| good	19.148 \| good	0.553 \| good	21.969 \| good	0.645 \| good
2026-04-22T16:00:00.000Z	38 \| good	7.408 \| good	32.622 \| good	24.979 \| good	0.619 \| good	16.332 \| good	0.548 \| good
2026-04-22T17:00:00.000Z	53 \| moderate	5.991 \| good	58.621 \| fine	28.063 \| good	0.407 \| good	13.853 \| good	0.469 \| good
2026-04-22T18:00:00.000Z	38 \| good	4.964 \| good	41.133 \| good	32.852 \| good	0.527 \| good	9.951 \| good	0.453 \| good
2026-04-22T19:00:00.000Z	45 \| good	4.595 \| good	49.168 \| good	38.78 \| good	0.481 \| good	9.112 \| good	0.453 \| good
2026-04-22T20:00:00.000Z	39 \| good	5.624 \| good	36.846 \| good	42.044 \| good	0.496 \| good	7.936 \| good	0.385 \| good
2026-04-22T21:00:00.000Z	43 \| good	4.67 \| good	16.479 \| good	46.381 \| good	0.472 \| good	7.701 \| good	0.385 \| good
2026-04-22T22:00:00.000Z	52 \| moderate	4.813 \| good	57.585 \| fine	47.25 \| good	0.486 \| good	6.689 \| good	0.378 \| good
2026-04-22T23:00:00.000Z	53 \| moderate	4.581 \| good	58.963 \| fine	48.19 \| good	0.503 \| good	6.023 \| good	0.378 \| good
2026-04-23T00:00:00.000Z	44 \| good	3.829 \| good	40.679 \| good	47.736 \| good	0.51 \| good	7.037 \| good	0.383 \| good
2026-04-23T01:00:00.000Z	43 \| good	3.42 \| good	29.639 \| good	46.277 \| good	0.48 \| good	7.097 \| good	0.383 \| good
2026-04-23T02:00:00.000Z	42 \| good	3.575 \| good	25.312 \| good	45.254 \| good	0.506 \| good	7.747 \| good	0.383 \| good
2026-04-23T03:00:00.000Z	42 \| good	3.326 \| good	19.062 \| good	44.808 \| good	0.482 \| good	9.778 \| good	0.45 \| good
2026-04-23T04:00:00.000Z	39 \| good	3.836 \| good	18.204 \| good	41.929 \| good	0.499 \| good	9.627 \| good	0.458 \| good
2026-04-23T05:00:00.000Z	36 \| good	4.627 \| good	22.191 \| good	39.192 \| good	0.735 \| good	10.123 \| good	0.458 \| good
2026-04-23T06:00:00.000Z	33 \| good	5.684 \| good	19.823 \| good	36.266 \| good	0.592 \| good	11.689 \| good	0.599 \| good
2026-04-23T07:00:00.000Z	33 \| good	5.883 \| good	20.96 \| good	33.566 \| good	0.531 \| good	13.337 \| good	0.607 \| good
2026-04-23T08:00:00.000Z	30 \| good	4.476 \| good	29.702 \| good	31.869 \| good	0.584 \| good	12.544 \| good	0.467 \| good
2026-04-23T09:00:00.000Z	25 \| good	4.495 \| good	17.714 \| good	27.267 \| good	0.507 \| good	8.946 \| good	0.346 \| good
2026-04-23T10:00:00.000Z	27 \| good	5.234 \| good	16.664 \| good	26.409 \| good	0.45 \| good	7.099 \| good	0.364 \| good
2026-04-23T11:00:00.000Z	33 \| good	5.903 \| good	19.594 \| good	22.701 \| good	0.593 \| good	10.565 \| good	0.36 \| good
2026-04-23T12:00:00.000Z	27 \| good	5.443 \| good	17.082 \| good	22.631 \| good	0.446 \| good	11.732 \| good	0.364 \| good
2026-04-23T13:00:00.000Z	33 \| good	5.99 \| good	19.878 \| good	22.672 \| good	0.544 \| good	15.503 \| good	0.513 \| good
2026-04-23T14:00:00.000Z	38 \| good	7.042 \| good	22.511 \| good	23.245 \| good	0.548 \| good	18.924 \| good	0.616 \| good
2026-04-23T15:00:00.000Z	38 \| good	6.888 \| good	30.627 \| good	25.367 \| good	0.604 \| good	15.842 \| good	0.61 \| good
2026-04-23T16:00:00.000Z	33 \| good	6.434 \| good	28.622 \| good	30.68 \| good	0.644 \| good	11.935 \| good	0.561 \| good
2026-04-23T17:00:00.000Z	38 \| good	7.422 \| good	38.065 \| good	33.166 \| good	0.606 \| good	8.588 \| good	0.478 \| good
2026-04-23T18:00:00.000Z	54 \| moderate	7.574 \| good	60.728 \| fine	39.291 \| good	0.6 \| good	7.127 \| good	0.474 \| good
2026-04-23T19:00:00.000Z	59 \| moderate	6.748 \| good	70.929 \| fine	45.052 \| good	0.638 \| good	6.687 \| good	0.457 \| good
2026-04-23T20:00:00.000Z	61 \| moderate	6.4 \| good	76.097 \| fine	47.034 \| good	0.619 \| good	6.628 \| good	0.39 \| good
2026-04-23T21:00:00.000Z	71 \| moderate	6.972 \| good	95.36 \| fine	49.27 \| good	0.611 \| good	7.125 \| good	0.469 \| good
2026-04-23T22:00:00.000Z	54 \| moderate	7.186 \| good	60.967 \| fine	51.748 \| good	0.672 \| good	8 \| good	0.469 \| good
2026-04-23T23:00:00.000Z	51 \| moderate	6.906 \| good	43.447 \| good	54.9 \| good	0.696 \| good	9.661 \| good	0.469 \| good
2026-04-24T00:00:00.000Z	51 \| moderate	7.084 \| good	33.033 \| good	55.106 \| fine	0.716 \| good	9.759 \| good	0.474 \| good
2026-04-24T01:00:00.000Z	54 \| moderate	6.443 \| good	29.231 \| good	55.924 \| fine	0.701 \| good	9.414 \| good	0.466 \| good
2026-04-24T02:00:00.000Z	50 \| good	6.339 \| good	31.555 \| good	54.23 \| good	0.722 \| good	12.798 \| good	0.517 \| good
2026-04-24T03:00:00.000Z	52 \| moderate	10.044 \| good	44.6 \| good	47.515 \| good	2.442 \| good	8.912 \| good	0.155 \| good
2026-04-24T04:00:00.000Z	44 \| good	5.73 \| good	20.314 \| good	48.366 \| good	0.632 \| good	14.003 \| good	0.54 \| good
2026-04-24T05:00:00.000Z	42 \| good	5.283 \| good	18.633 \| good	45.233 \| good	0.743 \| good	16.811 \| good	0.54 \| good
2026-04-24T06:00:00.000Z	40 \| good	5.49 \| good	17.804 \| good	43.456 \| good	0.581 \| good	13.662 \| good	0.615 \| good
2026-04-24T07:00:00.000Z	38 \| good	5.305 \| good	19.382 \| good	41.365 \| good	0.565 \| good	11.142 \| good	0.618 \| good
2026-04-24T08:00:00.000Z	35 \| good	5.026 \| good	17.553 \| good	37.641 \| good	0.504 \| good	8.935 \| good	0.429 \| good
2026-04-24T09:00:00.000Z	33 \| good	6.199 \| good	17.069 \| good	32.136 \| good	0.556 \| good	9.074 \| good	0.343 \| good
2026-04-24T10:00:00.000Z	33 \| good	6.151 \| good	17.672 \| good	29.965 \| good	0.489 \| good	10.021 \| good	0.355 \| good
2026-04-24T11:00:00.000Z	33 \| good	6.151 \| good	17.672 \| good	29.965 \| good	0.489 \| good	10.021 \| good	0.355 \| good
2026-04-24T12:00:00.000Z	33 \| good	6.135 \| good	26.853 \| good	30.188 \| good	2.448 \| good	11.59 \| good	0.17 \| good
2026-04-24T13:00:00.000Z	44 \| good	7.582 \| good	33.579 \| good	28.89 \| good	2.483 \| good	10.717 \| good	0.172 \| good
2026-04-24T14:00:00.000Z	44 \| good	8.058 \| good	35.42 \| good	33.012 \| good	2.518 \| good	9.844 \| good	0.174 \| good
2026-04-24T15:00:00.000Z	44 \| good	8.159 \| good	36.024 \| good	42.731 \| good	2.553 \| good	8.971 \| good	0.176 \| good
2026-04-24T16:00:00.000Z	44 \| good	8.266 \| good	36.222 \| good	44.933 \| good	2.306 \| good	7.11 \| good	0.165 \| good
2026-04-24T17:00:00.000Z	44 \| good	7.212 \| good	31.451 \| good	48.416 \| good	2.059 \| good	5.249 \| good	0.154 \| good
2026-04-24T18:00:00.000Z	46 \| good	7.86 \| good	34.437 \| good	50.212 \| good	1.813 \| good	3.389 \| good	0.143 \| good
2026-04-24T19:00:00.000Z	46 \| good	7.481 \| good	33.149 \| good	50.041 \| good	1.615 \| good	2.878 \| good	0.14 \| good
2026-04-24T20:00:00.000Z	46 \| good	6.752 \| good	30.188 \| good	50.127 \| good	1.418 \| good	2.367 \| good	0.136 \| good
2026-04-24T21:00:00.000Z	48 \| good	8.119 \| good	35.652 \| good	51.536 \| good	1.221 \| good	1.856 \| good	0.133 \| good
2026-04-24T22:00:00.000Z	48 \| good	6.766 \| good	30.11 \| good	52.476 \| good	1.263 \| good	2.171 \| good	0.135 \| good
2026-04-24T23:00:00.000Z	50 \| good	5.665 \| good	24.379 \| good	53.795 \| good	1.305 \| good	2.486 \| good	0.137 \| good
2026-04-25T00:00:00.000Z	50 \| good	6.111 \| good	26.834 \| good	54.29 \| good	1.348 \| good	2.801 \| good	0.139 \| good
2026-04-25T01:00:00.000Z	50 \| good	8.025 \| good	35.302 \| good	53.513 \| good	1.557 \| good	4.09 \| good	0.143 \| good
2026-04-25T02:00:00.000Z	52 \| moderate	10.351 \| good	46.048 \| good	53.528 \| good	1.766 \| good	5.378 \| good	0.147 \| good
2026-04-25T03:00:00.000Z	52 \| moderate	10.326 \| good	45.716 \| good	50.336 \| good	1.975 \| good	6.667 \| good	0.151 \| good
2026-04-25T04:00:00.000Z	49 \| good	8.509 \| good	37.414 \| good	45.072 \| good	2.127 \| good	7.952 \| good	0.154 \| good
2026-04-25T05:00:00.000Z	38 \| good	6.864 \| good	30.374 \| good	41.18 \| good	2.28 \| good	9.237 \| good	0.156 \| good
2026-04-25T06:00:00.000Z	38 \| good	6.599 \| good	29.315 \| good	38.743 \| good	2.432 \| good	10.523 \| good	0.158 \| good
2026-04-25T07:00:00.000Z	35 \| good	6.087 \| good	26.679 \| good	38.33 \| good	2.342 \| good	9.6 \| good	0.154 \| good
2026-04-25T08:00:00.000Z	34 \| good	5.939 \| good	26.267 \| good	37.378 \| good	2.251 \| good	8.678 \| good	0.149 \| good
2026-04-25T09:00:00.000Z	33 \| good	5.876 \| good	25.794 \| good	32.801 \| good	2.161 \| good	7.755 \| good	0.145 \| good
2026-04-25T10:00:00.000Z	33 \| good	5.846 \| good	25.666 \| good	30.782 \| good	2.044 \| good	6.998 \| good	0.141 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.546 \| good	23.732 \| good	30.672 \| good	1.927 \| good	6.24 \| good	0.137 \| good
2026-04-25T12:00:00.000Z	25 \| good	3.703 \| good	16.43 \| good	26.723 \| good	1.81 \| good	5.483 \| good	0.132 \| good
2026-04-25T13:00:00.000Z	25 \| good	4.225 \| good	18.133 \| good	27.274 \| good	1.682 \| good	5.102 \| good	0.131 \| good
2026-04-25T14:00:00.000Z	33 \| good	5.964 \| good	26.071 \| good	31.374 \| good	1.554 \| good	4.721 \| good	0.13 \| good
2026-04-25T15:00:00.000Z	36 \| good	5.504 \| good	24.106 \| good	39.242 \| good	1.425 \| good	4.34 \| good	0.129 \| good
2026-04-25T16:00:00.000Z	39 \| good	5.826 \| good	25.61 \| good	42.393 \| good	1.28 \| good	3.657 \| good	0.128 \| good
2026-04-25T17:00:00.000Z	42 \| good	5.444 \| good	23.27 \| good	44.786 \| good	1.135 \| good	2.973 \| good	0.127 \| good
2026-04-25T18:00:00.000Z	44 \| good	6.236 \| good	27.515 \| good	48.11 \| good	0.989 \| good	2.29 \| good	0.126 \| good
2026-04-25T19:00:00.000Z	46 \| good	5.712 \| good	24.996 \| good	49.934 \| good	0.905 \| good	1.994 \| good	0.124 \| good
2026-04-25T20:00:00.000Z	48 \| good	5.736 \| good	24.906 \| good	52.089 \| good	0.821 \| good	1.698 \| good	0.123 \| good
2026-04-25T21:00:00.000Z	46 \| good	7.118 \| good	31.452 \| good	50.348 \| good	0.736 \| good	1.402 \| good	0.121 \| good
2026-04-25T22:00:00.000Z	46 \| good	4.677 \| good	20.499 \| good	50.216 \| good	0.714 \| good	1.686 \| good	0.121 \| good
2026-04-25T23:00:00.000Z	46 \| good	3.45 \| good	15.156 \| good	50.04 \| good	0.691 \| good	1.97 \| good	0.12 \| good
2026-04-26T00:00:00.000Z	46 \| good	4.68 \| good	20.502 \| good	49.825 \| good	0.669 \| good	2.253 \| good	0.12 \| good
2026-04-26T01:00:00.000Z	46 \| good	5.293 \| good	22.912 \| good	49.679 \| good	0.722 \| good	2.652 \| good	0.12 \| good
2026-04-26T02:00:00.000Z	42 \| good	6.228 \| good	27.705 \| good	45.417 \| good	0.774 \| good	3.052 \| good	0.12 \| good
2026-04-26T03:00:00.000Z	43 \| good	6.617 \| good	29.412 \| good	45.74 \| good	0.827 \| good	3.451 \| good	0.12 \| good
2026-04-26T04:00:00.000Z	40 \| good	6.002 \| good	26.409 \| good	43.276 \| good	0.916 \| good	3.829 \| good	0.12 \| good
2026-04-26T05:00:00.000Z	39 \| good	4.96 \| good	21.507 \| good	42.44 \| good	1.005 \| good	4.208 \| good	0.121 \| good
2026-04-26T06:00:00.000Z	44 \| good	8.305 \| good	13.281 \| good	41.523 \| good	1.062 \| good	4.471 \| good	0.12 \| good
2026-04-26T07:00:00.000Z	38 \| good	3.878 \| good	17.041 \| good	41.314 \| good	1.15 \| good	4.566 \| good	0.12 \| good
2026-04-26T08:00:00.000Z	36 \| good	3.929 \| good	17.169 \| good	39.164 \| good	1.205 \| good	4.546 \| good	0.12 \| good
2026-04-26T09:00:00.000Z	33 \| good	3.73 \| good	16.439 \| good	36.151 \| good	1.261 \| good	4.526 \| good	0.12 \| good
2026-04-26T10:00:00.000Z	31 \| good	3.752 \| good	16.539 \| good	33.33 \| good	1.31 \| good	4.413 \| good	0.118 \| good
2026-04-26T11:00:00.000Z	30 \| good	2.951 \| good	12.437 \| good	31.996 \| good	1.36 \| good	4.301 \| good	0.117 \| good

Westminster

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Westminster, California air quality map: Track AQI near you

0.26ppm

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 2026-04-23.

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 12:00:00 on 2026-04-23.

What is the current air quality in Westminster, California?

The current air quality in Westminster, California is 33, categorized as Good 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 6.151 μg/m³.

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

The current PM₁₀ concentration at Westminster, California is 17.672 μg/m³.

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

The current carbon monoxide (CO) concentration at Westminster, California is 0.355 ppm.

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

The current sulfur dioxide (SO₂) concentration at Westminster, California is 0.489 ppb.

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

The current ozone (O₃) concentration at Westminster, California is 29.965 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Westminster, California is 10.021 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-04-22T12:00:00.000Z	27 \| good	5.095 \| good	13.153 \| good	22.596 \| good	0.501 \| good	20.456 \| good	0.539 \| good
2026-04-22T13:00:00.000Z	27 \| good	5.315 \| good	15.926 \| good	21.002 \| good	0.548 \| good	23.922 \| good	0.792 \| good
2026-04-22T14:00:00.000Z	38 \| good	6.516 \| good	23.482 \| good	17.366 \| good	0.479 \| good	25.142 \| good	0.782 \| good
2026-04-22T15:00:00.000Z	44 \| good	8.167 \| good	26.462 \| good	19.148 \| good	0.553 \| good	21.969 \| good	0.645 \| good
2026-04-22T16:00:00.000Z	38 \| good	7.408 \| good	32.622 \| good	24.979 \| good	0.619 \| good	16.332 \| good	0.548 \| good
2026-04-22T17:00:00.000Z	53 \| moderate	5.991 \| good	58.621 \| fine	28.063 \| good	0.407 \| good	13.853 \| good	0.469 \| good
2026-04-22T18:00:00.000Z	38 \| good	4.964 \| good	41.133 \| good	32.852 \| good	0.527 \| good	9.951 \| good	0.453 \| good
2026-04-22T19:00:00.000Z	45 \| good	4.595 \| good	49.168 \| good	38.78 \| good	0.481 \| good	9.112 \| good	0.453 \| good
2026-04-22T20:00:00.000Z	39 \| good	5.624 \| good	36.846 \| good	42.044 \| good	0.496 \| good	7.936 \| good	0.385 \| good
2026-04-22T21:00:00.000Z	43 \| good	4.67 \| good	16.479 \| good	46.381 \| good	0.472 \| good	7.701 \| good	0.385 \| good
2026-04-22T22:00:00.000Z	52 \| moderate	4.813 \| good	57.585 \| fine	47.25 \| good	0.486 \| good	6.689 \| good	0.378 \| good
2026-04-22T23:00:00.000Z	53 \| moderate	4.581 \| good	58.963 \| fine	48.19 \| good	0.503 \| good	6.023 \| good	0.378 \| good
2026-04-23T00:00:00.000Z	44 \| good	3.829 \| good	40.679 \| good	47.736 \| good	0.51 \| good	7.037 \| good	0.383 \| good
2026-04-23T01:00:00.000Z	43 \| good	3.42 \| good	29.639 \| good	46.277 \| good	0.48 \| good	7.097 \| good	0.383 \| good
2026-04-23T02:00:00.000Z	42 \| good	3.575 \| good	25.312 \| good	45.254 \| good	0.506 \| good	7.747 \| good	0.383 \| good
2026-04-23T03:00:00.000Z	42 \| good	3.326 \| good	19.062 \| good	44.808 \| good	0.482 \| good	9.778 \| good	0.45 \| good
2026-04-23T04:00:00.000Z	39 \| good	3.836 \| good	18.204 \| good	41.929 \| good	0.499 \| good	9.627 \| good	0.458 \| good
2026-04-23T05:00:00.000Z	36 \| good	4.627 \| good	22.191 \| good	39.192 \| good	0.735 \| good	10.123 \| good	0.458 \| good
2026-04-23T06:00:00.000Z	33 \| good	5.684 \| good	19.823 \| good	36.266 \| good	0.592 \| good	11.689 \| good	0.599 \| good
2026-04-23T07:00:00.000Z	33 \| good	5.883 \| good	20.96 \| good	33.566 \| good	0.531 \| good	13.337 \| good	0.607 \| good
2026-04-23T08:00:00.000Z	30 \| good	4.476 \| good	29.702 \| good	31.869 \| good	0.584 \| good	12.544 \| good	0.467 \| good
2026-04-23T09:00:00.000Z	25 \| good	4.495 \| good	17.714 \| good	27.267 \| good	0.507 \| good	8.946 \| good	0.346 \| good
2026-04-23T10:00:00.000Z	27 \| good	5.234 \| good	16.664 \| good	26.409 \| good	0.45 \| good	7.099 \| good	0.364 \| good
2026-04-23T11:00:00.000Z	33 \| good	5.903 \| good	19.594 \| good	22.701 \| good	0.593 \| good	10.565 \| good	0.36 \| good
2026-04-23T12:00:00.000Z	27 \| good	5.443 \| good	17.082 \| good	22.631 \| good	0.446 \| good	11.732 \| good	0.364 \| good
2026-04-23T13:00:00.000Z	33 \| good	5.99 \| good	19.878 \| good	22.672 \| good	0.544 \| good	15.503 \| good	0.513 \| good
2026-04-23T14:00:00.000Z	38 \| good	7.042 \| good	22.511 \| good	23.245 \| good	0.548 \| good	18.924 \| good	0.616 \| good
2026-04-23T15:00:00.000Z	38 \| good	6.888 \| good	30.627 \| good	25.367 \| good	0.604 \| good	15.842 \| good	0.61 \| good
2026-04-23T16:00:00.000Z	33 \| good	6.434 \| good	28.622 \| good	30.68 \| good	0.644 \| good	11.935 \| good	0.561 \| good
2026-04-23T17:00:00.000Z	38 \| good	7.422 \| good	38.065 \| good	33.166 \| good	0.606 \| good	8.588 \| good	0.478 \| good
2026-04-23T18:00:00.000Z	54 \| moderate	7.574 \| good	60.728 \| fine	39.291 \| good	0.6 \| good	7.127 \| good	0.474 \| good
2026-04-23T19:00:00.000Z	59 \| moderate	6.748 \| good	70.929 \| fine	45.052 \| good	0.638 \| good	6.687 \| good	0.457 \| good
2026-04-23T20:00:00.000Z	61 \| moderate	6.4 \| good	76.097 \| fine	47.034 \| good	0.619 \| good	6.628 \| good	0.39 \| good
2026-04-23T21:00:00.000Z	71 \| moderate	6.972 \| good	95.36 \| fine	49.27 \| good	0.611 \| good	7.125 \| good	0.469 \| good
2026-04-23T22:00:00.000Z	54 \| moderate	7.186 \| good	60.967 \| fine	51.748 \| good	0.672 \| good	8 \| good	0.469 \| good
2026-04-23T23:00:00.000Z	51 \| moderate	6.906 \| good	43.447 \| good	54.9 \| good	0.696 \| good	9.661 \| good	0.469 \| good
2026-04-24T00:00:00.000Z	51 \| moderate	7.084 \| good	33.033 \| good	55.106 \| fine	0.716 \| good	9.759 \| good	0.474 \| good
2026-04-24T01:00:00.000Z	54 \| moderate	6.443 \| good	29.231 \| good	55.924 \| fine	0.701 \| good	9.414 \| good	0.466 \| good
2026-04-24T02:00:00.000Z	50 \| good	6.339 \| good	31.555 \| good	54.23 \| good	0.722 \| good	12.798 \| good	0.517 \| good
2026-04-24T03:00:00.000Z	52 \| moderate	10.044 \| good	44.6 \| good	47.515 \| good	2.442 \| good	8.912 \| good	0.155 \| good
2026-04-24T04:00:00.000Z	44 \| good	5.73 \| good	20.314 \| good	48.366 \| good	0.632 \| good	14.003 \| good	0.54 \| good
2026-04-24T05:00:00.000Z	42 \| good	5.283 \| good	18.633 \| good	45.233 \| good	0.743 \| good	16.811 \| good	0.54 \| good
2026-04-24T06:00:00.000Z	40 \| good	5.49 \| good	17.804 \| good	43.456 \| good	0.581 \| good	13.662 \| good	0.615 \| good
2026-04-24T07:00:00.000Z	38 \| good	5.305 \| good	19.382 \| good	41.365 \| good	0.565 \| good	11.142 \| good	0.618 \| good
2026-04-24T08:00:00.000Z	35 \| good	5.026 \| good	17.553 \| good	37.641 \| good	0.504 \| good	8.935 \| good	0.429 \| good
2026-04-24T09:00:00.000Z	33 \| good	6.199 \| good	17.069 \| good	32.136 \| good	0.556 \| good	9.074 \| good	0.343 \| good
2026-04-24T10:00:00.000Z	33 \| good	6.151 \| good	17.672 \| good	29.965 \| good	0.489 \| good	10.021 \| good	0.355 \| good
2026-04-24T11:00:00.000Z	33 \| good	6.151 \| good	17.672 \| good	29.965 \| good	0.489 \| good	10.021 \| good	0.355 \| good
2026-04-24T12:00:00.000Z	33 \| good	6.135 \| good	26.853 \| good	30.188 \| good	2.448 \| good	11.59 \| good	0.17 \| good
2026-04-24T13:00:00.000Z	44 \| good	7.582 \| good	33.579 \| good	28.89 \| good	2.483 \| good	10.717 \| good	0.172 \| good
2026-04-24T14:00:00.000Z	44 \| good	8.058 \| good	35.42 \| good	33.012 \| good	2.518 \| good	9.844 \| good	0.174 \| good
2026-04-24T15:00:00.000Z	44 \| good	8.159 \| good	36.024 \| good	42.731 \| good	2.553 \| good	8.971 \| good	0.176 \| good
2026-04-24T16:00:00.000Z	44 \| good	8.266 \| good	36.222 \| good	44.933 \| good	2.306 \| good	7.11 \| good	0.165 \| good
2026-04-24T17:00:00.000Z	44 \| good	7.212 \| good	31.451 \| good	48.416 \| good	2.059 \| good	5.249 \| good	0.154 \| good
2026-04-24T18:00:00.000Z	46 \| good	7.86 \| good	34.437 \| good	50.212 \| good	1.813 \| good	3.389 \| good	0.143 \| good
2026-04-24T19:00:00.000Z	46 \| good	7.481 \| good	33.149 \| good	50.041 \| good	1.615 \| good	2.878 \| good	0.14 \| good
2026-04-24T20:00:00.000Z	46 \| good	6.752 \| good	30.188 \| good	50.127 \| good	1.418 \| good	2.367 \| good	0.136 \| good
2026-04-24T21:00:00.000Z	48 \| good	8.119 \| good	35.652 \| good	51.536 \| good	1.221 \| good	1.856 \| good	0.133 \| good
2026-04-24T22:00:00.000Z	48 \| good	6.766 \| good	30.11 \| good	52.476 \| good	1.263 \| good	2.171 \| good	0.135 \| good
2026-04-24T23:00:00.000Z	50 \| good	5.665 \| good	24.379 \| good	53.795 \| good	1.305 \| good	2.486 \| good	0.137 \| good
2026-04-25T00:00:00.000Z	50 \| good	6.111 \| good	26.834 \| good	54.29 \| good	1.348 \| good	2.801 \| good	0.139 \| good
2026-04-25T01:00:00.000Z	50 \| good	8.025 \| good	35.302 \| good	53.513 \| good	1.557 \| good	4.09 \| good	0.143 \| good
2026-04-25T02:00:00.000Z	52 \| moderate	10.351 \| good	46.048 \| good	53.528 \| good	1.766 \| good	5.378 \| good	0.147 \| good
2026-04-25T03:00:00.000Z	52 \| moderate	10.326 \| good	45.716 \| good	50.336 \| good	1.975 \| good	6.667 \| good	0.151 \| good
2026-04-25T04:00:00.000Z	49 \| good	8.509 \| good	37.414 \| good	45.072 \| good	2.127 \| good	7.952 \| good	0.154 \| good
2026-04-25T05:00:00.000Z	38 \| good	6.864 \| good	30.374 \| good	41.18 \| good	2.28 \| good	9.237 \| good	0.156 \| good
2026-04-25T06:00:00.000Z	38 \| good	6.599 \| good	29.315 \| good	38.743 \| good	2.432 \| good	10.523 \| good	0.158 \| good
2026-04-25T07:00:00.000Z	35 \| good	6.087 \| good	26.679 \| good	38.33 \| good	2.342 \| good	9.6 \| good	0.154 \| good
2026-04-25T08:00:00.000Z	34 \| good	5.939 \| good	26.267 \| good	37.378 \| good	2.251 \| good	8.678 \| good	0.149 \| good
2026-04-25T09:00:00.000Z	33 \| good	5.876 \| good	25.794 \| good	32.801 \| good	2.161 \| good	7.755 \| good	0.145 \| good
2026-04-25T10:00:00.000Z	33 \| good	5.846 \| good	25.666 \| good	30.782 \| good	2.044 \| good	6.998 \| good	0.141 \| good
2026-04-25T11:00:00.000Z	33 \| good	5.546 \| good	23.732 \| good	30.672 \| good	1.927 \| good	6.24 \| good	0.137 \| good
2026-04-25T12:00:00.000Z	25 \| good	3.703 \| good	16.43 \| good	26.723 \| good	1.81 \| good	5.483 \| good	0.132 \| good
2026-04-25T13:00:00.000Z	25 \| good	4.225 \| good	18.133 \| good	27.274 \| good	1.682 \| good	5.102 \| good	0.131 \| good
2026-04-25T14:00:00.000Z	33 \| good	5.964 \| good	26.071 \| good	31.374 \| good	1.554 \| good	4.721 \| good	0.13 \| good
2026-04-25T15:00:00.000Z	36 \| good	5.504 \| good	24.106 \| good	39.242 \| good	1.425 \| good	4.34 \| good	0.129 \| good
2026-04-25T16:00:00.000Z	39 \| good	5.826 \| good	25.61 \| good	42.393 \| good	1.28 \| good	3.657 \| good	0.128 \| good
2026-04-25T17:00:00.000Z	42 \| good	5.444 \| good	23.27 \| good	44.786 \| good	1.135 \| good	2.973 \| good	0.127 \| good
2026-04-25T18:00:00.000Z	44 \| good	6.236 \| good	27.515 \| good	48.11 \| good	0.989 \| good	2.29 \| good	0.126 \| good
2026-04-25T19:00:00.000Z	46 \| good	5.712 \| good	24.996 \| good	49.934 \| good	0.905 \| good	1.994 \| good	0.124 \| good
2026-04-25T20:00:00.000Z	48 \| good	5.736 \| good	24.906 \| good	52.089 \| good	0.821 \| good	1.698 \| good	0.123 \| good
2026-04-25T21:00:00.000Z	46 \| good	7.118 \| good	31.452 \| good	50.348 \| good	0.736 \| good	1.402 \| good	0.121 \| good
2026-04-25T22:00:00.000Z	46 \| good	4.677 \| good	20.499 \| good	50.216 \| good	0.714 \| good	1.686 \| good	0.121 \| good
2026-04-25T23:00:00.000Z	46 \| good	3.45 \| good	15.156 \| good	50.04 \| good	0.691 \| good	1.97 \| good	0.12 \| good
2026-04-26T00:00:00.000Z	46 \| good	4.68 \| good	20.502 \| good	49.825 \| good	0.669 \| good	2.253 \| good	0.12 \| good
2026-04-26T01:00:00.000Z	46 \| good	5.293 \| good	22.912 \| good	49.679 \| good	0.722 \| good	2.652 \| good	0.12 \| good
2026-04-26T02:00:00.000Z	42 \| good	6.228 \| good	27.705 \| good	45.417 \| good	0.774 \| good	3.052 \| good	0.12 \| good
2026-04-26T03:00:00.000Z	43 \| good	6.617 \| good	29.412 \| good	45.74 \| good	0.827 \| good	3.451 \| good	0.12 \| good
2026-04-26T04:00:00.000Z	40 \| good	6.002 \| good	26.409 \| good	43.276 \| good	0.916 \| good	3.829 \| good	0.12 \| good
2026-04-26T05:00:00.000Z	39 \| good	4.96 \| good	21.507 \| good	42.44 \| good	1.005 \| good	4.208 \| good	0.121 \| good
2026-04-26T06:00:00.000Z	44 \| good	8.305 \| good	13.281 \| good	41.523 \| good	1.062 \| good	4.471 \| good	0.12 \| good
2026-04-26T07:00:00.000Z	38 \| good	3.878 \| good	17.041 \| good	41.314 \| good	1.15 \| good	4.566 \| good	0.12 \| good
2026-04-26T08:00:00.000Z	36 \| good	3.929 \| good	17.169 \| good	39.164 \| good	1.205 \| good	4.546 \| good	0.12 \| good
2026-04-26T09:00:00.000Z	33 \| good	3.73 \| good	16.439 \| good	36.151 \| good	1.261 \| good	4.526 \| good	0.12 \| good
2026-04-26T10:00:00.000Z	31 \| good	3.752 \| good	16.539 \| good	33.33 \| good	1.31 \| good	4.413 \| good	0.118 \| good
2026-04-26T11:00:00.000Z	30 \| good	2.951 \| good	12.437 \| good	31.996 \| good	1.36 \| good	4.301 \| good	0.117 \| 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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Westminster, California air quality map: Track AQI near you

Air quality in nearby cities

Stanton, California

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Fountain Valley, California

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Los Alamitos, California

Rossmoor, California

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

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

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

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

What is the current concentration of ozone (O3) 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?

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

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

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

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