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

The current PM10 concentration at Highland, California is 47.112 μg/m3.

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

The current sulfur dioxide (SO2) concentration at Highland, California is 0.688 ppb.

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

The current ozone (O3) concentration at Highland, California is 83.317 ppm.

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

The current nitrogen dioxide (NO2) concentration at Highland, California is 6.869 ppb.

Highland, California live air quality index now

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

The current PM2.5 concentration at Highland, California is 10.762 μg/m3.

Stay updated with real-time air quality in Highland, 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)

143

Unhealthy for sensitive groups

Highland, California

Last updated: ... (Local time)

Major air pollutants in Highland, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

10.76 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

47.11 μg/m³

155

255

425

605+

Ozone (O₃)

83.32 ppb

201

201+

Sulfur Dioxide (SO₂)

0.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

6.87 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.25 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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

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Highland, California

Scroll To Air Quality Map

Track live Highland, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-07-21T23:00:00.000Z	84 \| moderate	8.953 \| good	42.123 \| good	65.001 \| fine	0.498 \| good	3.589 \| good	0.18 \| good
2026-07-22T00:00:00.000Z	101 \| sensitive	7.725 \| good	59.173 \| fine	70.652 \| fine	0.517 \| good	3.538 \| good	0.153 \| good
2026-07-22T01:00:00.000Z	87 \| moderate	8.729 \| good	34.327 \| good	66.079 \| fine	0.558 \| good	5.341 \| good	0.165 \| good
2026-07-22T02:00:00.000Z	87 \| moderate	8.761 \| good	40.954 \| good	65.757 \| fine	0.535 \| good	6.007 \| good	0.153 \| good
2026-07-22T03:00:00.000Z	54 \| moderate	8.236 \| good	34.499 \| good	55.572 \| fine	0.45 \| good	5.667 \| good	0.165 \| good
2026-07-22T04:00:00.000Z	46 \| good	7.015 \| good	31.504 \| good	49.881 \| good	0.452 \| good	5.811 \| good	0.178 \| good
2026-07-22T05:00:00.000Z	86 \| moderate	27.748 \| fine	113.091 \| fine	42.512 \| good	0.587 \| good	6.174 \| good	0.215 \| good
2026-07-22T06:00:00.000Z	74 \| moderate	16.048 \| fine	101.989 \| fine	35.479 \| good	0.49 \| good	7.891 \| good	0.203 \| good
2026-07-22T07:00:00.000Z	69 \| moderate	19.286 \| fine	89.019 \| fine	35.479 \| good	0.488 \| good	7.949 \| good	0.203 \| good
2026-07-22T08:00:00.000Z	58 \| moderate	13.304 \| fine	62.427 \| fine	22.505 \| good	0.478 \| good	10.625 \| good	0.247 \| good
2026-07-22T09:00:00.000Z	27 \| good	5.37 \| good	22.24 \| good	19.624 \| good	0.486 \| good	10.597 \| good	0.221 \| good
2026-07-22T10:00:00.000Z	49 \| good	8.742 \| good	38.582 \| good	17.885 \| good	0.442 \| good	12.075 \| good	0.221 \| good
2026-07-22T11:00:00.000Z	33 \| good	5.797 \| good	19.914 \| good	14.536 \| good	0.598 \| good	14.448 \| good	0.209 \| good
2026-07-22T12:00:00.000Z	38 \| good	6.629 \| good	15.923 \| good	15.228 \| good	0.473 \| good	12.38 \| good	0.262 \| good
2026-07-22T13:00:00.000Z	33 \| good	5.658 \| good	23.13 \| good	15.228 \| good	0.469 \| good	13.822 \| good	0.262 \| good
2026-07-22T14:00:00.000Z	44 \| good	8.022 \| good	27.738 \| good	15.57 \| good	0.482 \| good	20.317 \| good	0.364 \| good
2026-07-22T15:00:00.000Z	38 \| good	6.821 \| good	28.025 \| good	20.436 \| good	0.693 \| good	13.276 \| good	0.311 \| good
2026-07-22T16:00:00.000Z	49 \| good	9.341 \| good	48.254 \| good	23.543 \| good	0.747 \| good	13.373 \| good	0.256 \| good
2026-07-22T17:00:00.000Z	44 \| good	8.12 \| good	30.932 \| good	28.405 \| good	0.697 \| good	12.113 \| good	0.243 \| good
2026-07-22T18:00:00.000Z	38 \| good	7.248 \| good	22.186 \| good	33.489 \| good	0.659 \| good	8.718 \| good	0.243 \| good
2026-07-22T19:00:00.000Z	38 \| good	6.566 \| good	21.51 \| good	38.142 \| good	0.672 \| good	7.368 \| good	0.251 \| good
2026-07-22T20:00:00.000Z	44 \| good	6.838 \| good	27.538 \| good	47.366 \| good	0.713 \| good	6.534 \| good	0.251 \| good
2026-07-22T21:00:00.000Z	51 \| moderate	6.449 \| good	28.107 \| good	54.725 \| good	0.716 \| good	5.464 \| good	0.243 \| good
2026-07-22T22:00:00.000Z	77 \| moderate	6.705 \| good	35.824 \| good	63.066 \| fine	0.649 \| good	6.51 \| good	0.234 \| good
2026-07-22T23:00:00.000Z	112 \| sensitive	6.499 \| good	24.616 \| good	74.23 \| moderate	0.524 \| good	6.711 \| good	0.247 \| good
2026-07-23T00:00:00.000Z	115 \| sensitive	9.682 \| good	31.55 \| good	75.465 \| moderate	0.585 \| good	7.352 \| good	0.234 \| good
2026-07-23T01:00:00.000Z	122 \| sensitive	9.734 \| good	33.535 \| good	77.245 \| moderate	0.652 \| good	7.539 \| good	0.234 \| good
2026-07-23T02:00:00.000Z	105 \| sensitive	8.742 \| good	36.396 \| good	72.401 \| moderate	0.678 \| good	6.752 \| good	0.247 \| good
2026-07-23T03:00:00.000Z	58 \| moderate	12.877 \| fine	57.747 \| fine	51.354 \| good	1.058 \| good	3.069 \| good	0.127 \| good
2026-07-23T04:00:00.000Z	74 \| moderate	8.338 \| good	32.084 \| good	61.935 \| fine	0.595 \| good	10.197 \| good	0.247 \| good
2026-07-23T05:00:00.000Z	49 \| good	8.313 \| good	29.026 \| good	53.497 \| good	0.709 \| good	13.393 \| good	0.247 \| good
2026-07-23T06:00:00.000Z	42 \| good	7.313 \| good	32.42 \| good	44.613 \| good	0.568 \| good	16.3 \| good	0.259 \| good
2026-07-23T07:00:00.000Z	44 \| good	8.3 \| good	33.526 \| good	44.613 \| good	0.55 \| good	11.644 \| good	0.259 \| good
2026-07-23T08:00:00.000Z	44 \| good	7.926 \| good	29.301 \| good	28.667 \| good	0.523 \| good	11.353 \| good	0.256 \| good
2026-07-23T09:00:00.000Z	44 \| good	7.605 \| good	28.758 \| good	21.658 \| good	0.571 \| good	11.555 \| good	0.23 \| good
2026-07-23T10:00:00.000Z	38 \| good	7.232 \| good	23.886 \| good	20.821 \| good	0.526 \| good	12.335 \| good	0.271 \| good
2026-07-23T11:00:00.000Z	38 \| good	7.012 \| good	29.344 \| good	18.61 \| good	0.741 \| good	18.583 \| good	0.23 \| good
2026-07-23T12:00:00.000Z	38 \| good	7.493 \| good	27.274 \| good	18.61 \| good	0.557 \| good	14.813 \| good	0.267 \| good
2026-07-23T13:00:00.000Z	38 \| good	7.278 \| good	28.677 \| good	19.067 \| good	0.547 \| good	14.661 \| good	0.268 \| good
2026-07-23T14:00:00.000Z	44 \| good	7.911 \| good	26.37 \| good	21.527 \| good	0.613 \| good	22.844 \| good	0.393 \| good
2026-07-23T15:00:00.000Z	49 \| good	8.808 \| good	44.984 \| good	21.901 \| good	0.798 \| good	19.434 \| good	0.374 \| good
2026-07-23T16:00:00.000Z	49 \| good	8.572 \| good	27.43 \| good	21.901 \| good	0.809 \| good	19.197 \| good	0.352 \| good
2026-07-23T17:00:00.000Z	52 \| moderate	10.226 \| good	37.033 \| good	42.18 \| good	0.734 \| good	15.603 \| good	0.302 \| good
2026-07-23T18:00:00.000Z	49 \| good	8.753 \| good	32.473 \| good	52.948 \| good	0.803 \| good	14.614 \| good	0.34 \| good
2026-07-23T19:00:00.000Z	74 \| moderate	10.338 \| good	49.315 \| good	62.36 \| fine	0.746 \| good	10.9 \| good	0.275 \| good
2026-07-23T20:00:00.000Z	112 \| sensitive	9.744 \| good	35.973 \| good	74.481 \| moderate	0.657 \| good	7.346 \| good	0.265 \| good
2026-07-23T21:00:00.000Z	156 \| unhealthy	9.873 \| good	40.712 \| good	87.743 \| poor	0.688 \| good	6.073 \| good	0.251 \| good
2026-07-23T22:00:00.000Z	143 \| sensitive	10.762 \| good	47.112 \| good	83.317 \| moderate	0.688 \| good	6.869 \| good	0.25 \| good
2026-07-23T23:00:00.000Z	177 \| unhealthy	20.269 \| fine	89.311 \| fine	96.256 \| poor	0.57 \| good	1.073 \| good	0.136 \| good
2026-07-24T00:00:00.000Z	161 \| unhealthy	19.534 \| fine	85.931 \| fine	90.48 \| poor	0.625 \| good	1.282 \| good	0.132 \| good
2026-07-24T01:00:00.000Z	147 \| sensitive	17.653 \| fine	78.116 \| fine	83.817 \| moderate	0.701 \| good	1.629 \| good	0.128 \| good
2026-07-24T02:00:00.000Z	143 \| sensitive	17.266 \| fine	76.728 \| fine	83.426 \| moderate	0.794 \| good	2.303 \| good	0.128 \| good
2026-07-24T03:00:00.000Z	84 \| moderate	15.07 \| fine	67.209 \| fine	65.186 \| fine	0.873 \| good	3.879 \| good	0.134 \| good
2026-07-24T04:00:00.000Z	62 \| moderate	14.589 \| fine	65.829 \| fine	56.359 \| fine	0.919 \| good	5.038 \| good	0.14 \| good
2026-07-24T05:00:00.000Z	62 \| moderate	15.359 \| fine	68.214 \| fine	48.654 \| good	0.942 \| good	6.399 \| good	0.147 \| good
2026-07-24T06:00:00.000Z	62 \| moderate	15.011 \| fine	67.249 \| fine	40.825 \| good	0.97 \| good	8.809 \| good	0.16 \| good
2026-07-24T07:00:00.000Z	62 \| moderate	14.753 \| fine	66.39 \| fine	33.505 \| good	0.979 \| good	11.923 \| good	0.179 \| good
2026-07-24T08:00:00.000Z	62 \| moderate	14.981 \| fine	66.576 \| fine	29.471 \| good	0.945 \| good	13.976 \| good	0.194 \| good
2026-07-24T09:00:00.000Z	58 \| moderate	13.173 \| fine	58.728 \| fine	26.764 \| good	0.905 \| good	15.661 \| good	0.208 \| good
2026-07-24T10:00:00.000Z	58 \| moderate	12.755 \| fine	57.039 \| fine	22.587 \| good	0.849 \| good	16.893 \| good	0.223 \| good
2026-07-24T11:00:00.000Z	58 \| moderate	12.882 \| fine	57.711 \| fine	22.038 \| good	0.781 \| good	17.469 \| good	0.234 \| good
2026-07-24T12:00:00.000Z	66 \| moderate	16.508 \| fine	73.511 \| fine	21.515 \| good	0.715 \| good	17.477 \| good	0.242 \| good
2026-07-24T13:00:00.000Z	67 \| moderate	18.007 \| fine	79.347 \| fine	18.108 \| good	0.657 \| good	16.334 \| good	0.247 \| good
2026-07-24T14:00:00.000Z	67 \| moderate	18.175 \| fine	80.735 \| fine	23.806 \| good	0.59 \| good	12.898 \| good	0.252 \| good
2026-07-24T15:00:00.000Z	66 \| moderate	17.452 \| fine	77.428 \| fine	31.289 \| good	0.741 \| good	7.518 \| good	0.197 \| good
2026-07-24T16:00:00.000Z	66 \| moderate	16.712 \| fine	74.465 \| fine	40.97 \| good	0.721 \| good	4.449 \| good	0.17 \| good
2026-07-24T17:00:00.000Z	69 \| moderate	18.774 \| fine	82.962 \| fine	57.447 \| fine	0.694 \| good	2.922 \| good	0.156 \| good
2026-07-24T18:00:00.000Z	119 \| sensitive	19.74 \| fine	86.61 \| fine	76.217 \| moderate	0.664 \| good	1.994 \| good	0.148 \| good
2026-07-24T19:00:00.000Z	161 \| unhealthy	18.519 \| fine	82.029 \| fine	89.755 \| poor	0.631 \| good	1.402 \| good	0.142 \| good
2026-07-24T20:00:00.000Z	182 \| unhealthy	19.418 \| fine	85.38 \| fine	98.32 \| poor	0.588 \| good	1.031 \| good	0.135 \| good
2026-07-24T21:00:00.000Z	190 \| unhealthy	20.029 \| fine	88.337 \| fine	100.95 \| poor	0.552 \| good	0.878 \| good	0.13 \| good
2026-07-24T22:00:00.000Z	179 \| unhealthy	19.212 \| fine	84.303 \| fine	96.715 \| poor	0.509 \| good	0.837 \| good	0.123 \| good
2026-07-24T23:00:00.000Z	151 \| unhealthy	14.501 \| fine	64.999 \| fine	85.666 \| moderate	0.501 \| good	0.912 \| good	0.119 \| good
2026-07-25T00:00:00.000Z	108 \| sensitive	12.323 \| fine	55.547 \| fine	72.669 \| moderate	0.435 \| good	0.948 \| good	0.111 \| good
2026-07-25T01:00:00.000Z	87 \| moderate	10.379 \| good	45.971 \| good	65.651 \| fine	0.421 \| good	1.1 \| good	0.107 \| good
2026-07-25T02:00:00.000Z	71 \| moderate	8.816 \| good	38.609 \| good	60.6 \| fine	0.437 \| good	1.5 \| good	0.106 \| good
2026-07-25T03:00:00.000Z	52 \| moderate	10.108 \| good	44.571 \| good	48.52 \| good	0.489 \| good	2.577 \| good	0.11 \| good
2026-07-25T04:00:00.000Z	54 \| moderate	10.511 \| good	46.478 \| good	39.349 \| good	0.537 \| good	3.837 \| good	0.116 \| good
2026-07-25T05:00:00.000Z	54 \| moderate	11.144 \| good	49.217 \| good	34.037 \| good	0.574 \| good	5.569 \| good	0.125 \| good
2026-07-25T06:00:00.000Z	54 \| moderate	11.153 \| good	49.425 \| good	30.134 \| good	0.631 \| good	8.51 \| good	0.142 \| good
2026-07-25T07:00:00.000Z	54 \| moderate	11.432 \| good	51.145 \| good	25.759 \| good	0.646 \| good	9.832 \| good	0.151 \| good
2026-07-25T08:00:00.000Z	58 \| moderate	12.999 \| fine	58.268 \| fine	23.9 \| good	0.649 \| good	12.107 \| good	0.165 \| good
2026-07-25T09:00:00.000Z	56 \| moderate	11.947 \| good	53.425 \| good	21.71 \| good	0.644 \| good	13.649 \| good	0.177 \| good
2026-07-25T10:00:00.000Z	54 \| moderate	10.882 \| good	48.667 \| good	18.665 \| good	0.636 \| good	14.456 \| good	0.184 \| good
2026-07-25T11:00:00.000Z	52 \| moderate	9.925 \| good	44.099 \| good	17.305 \| good	0.616 \| good	14.808 \| good	0.189 \| good
2026-07-25T12:00:00.000Z	56 \| moderate	12.086 \| good	53.608 \| good	15.919 \| good	0.57 \| good	14.785 \| good	0.192 \| good
2026-07-25T13:00:00.000Z	54 \| moderate	11.459 \| good	51.025 \| good	15.79 \| good	0.501 \| good	14.221 \| good	0.194 \| good
2026-07-25T14:00:00.000Z	54 \| moderate	11.392 \| good	50.53 \| good	18.551 \| good	0.417 \| good	11.522 \| good	0.198 \| good
2026-07-25T15:00:00.000Z	56 \| moderate	11.533 \| good	51.457 \| good	25.45 \| good	0.455 \| good	6.682 \| good	0.165 \| good
2026-07-25T16:00:00.000Z	54 \| moderate	11.431 \| good	51.582 \| good	35.588 \| good	0.461 \| good	4.134 \| good	0.144 \| good
2026-07-25T17:00:00.000Z	54 \| moderate	10.689 \| good	47.471 \| good	45.35 \| good	0.469 \| good	2.804 \| good	0.132 \| good
2026-07-25T18:00:00.000Z	52 \| moderate	9.964 \| good	44.162 \| good	53.202 \| good	0.426 \| good	1.809 \| good	0.122 \| good
2026-07-25T19:00:00.000Z	74 \| moderate	8.993 \| good	39.915 \| good	62.25 \| fine	0.395 \| good	1.245 \| good	0.117 \| good
2026-07-25T20:00:00.000Z	93 \| moderate	8.657 \| good	38.488 \| good	67.94 \| fine	0.358 \| good	0.903 \| good	0.114 \| good
2026-07-25T21:00:00.000Z	97 \| moderate	8.529 \| good	37.454 \| good	69.397 \| fine	0.327 \| good	0.755 \| good	0.112 \| good
2026-07-25T22:00:00.000Z	101 \| sensitive	11.549 \| good	51.592 \| good	70.646 \| fine	0.313 \| good	0.723 \| good	0.11 \| good

Highland

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Highland, California air quality map: Track AQI near you

0.24ppm

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 Highland, California updated?

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

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

The worst air quality in Highland, California in the last 24 hours was observed at 09:00:00 on 2026-07-23.

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

In the last 24 hrs, the best air quality in Highland, California was observed at 01:00:00 on 2026-07-23.

What is the current air quality in Highland, California?

The current air quality in Highland, California is 143, categorized as Unhealthy for Sensitive Groups based on real-time data.

What pollutant is the most common in Highland, California?

The most common pollutant in Highland, California is O3.

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

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

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

The current PM_2.5 concentration at Highland, California is 10.762 μg/m³.

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

The current PM₁₀ concentration at Highland, California is 47.112 μg/m³.

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

The current carbon monoxide (CO) concentration at Highland, California is 0.25 ppm.

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

The current sulfur dioxide (SO₂) concentration at Highland, California is 0.688 ppb.

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

The current ozone (O₃) concentration at Highland, California is 83.317 ppm.

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

The current nitrogen dioxide (NO₂) concentration at Highland, California is 6.869 ppb.

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