What is the current level of PM10 in La Crescentamontrose, California?

La Crescentamontrose, California currently has a PM10 concentration of 24.594 μg/m3.

What is the current level of sulfur dioxide (SO2) in La Crescentamontrose, California?

The current sulfur dioxide (SO2) concentration in La Crescentamontrose, California is 0.657 ppb.

What is the current level of ozone (O3) in La Crescentamontrose, California?

La Crescentamontrose, California currently has an ozone (O3) concentration of 16.004 ppm.

What is the current level of nitrogen dioxide (NO2) in La Crescentamontrose, California?

The current level of nitrogen dioxide (NO2) in La Crescentamontrose, California is 23.938 ppb.

Current air quality index in La CrescentaMontrose, California today

Q: What is the PM2.5 concentration in La Crescentamontrose, California right now?

La Crescentamontrose, California currently has a PM2.5 concentration of 8.228 μg/m3.

Stay updated with real-time air quality in La CrescentaMontrose, 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

La CrescentaMontrose, California

Last updated: ... (Local time)

Common air pollutants in La CrescentaMontrose, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

7.93 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.85 μg/m³

155

255

425

605+

Ozone (O₃)

34.19 ppb

201

201+

Sulfur Dioxide (SO₂)

0.69 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

13.42 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.32 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

La CrescentaMontrose, California

Get Live Pollen Counts

La CrescentaMontrose, California

Scroll To Air Quality Map

Track live La CrescentaMontrose, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T23:00:00.000Z	27 \| good	4.749 \| good	19.013 \| good	26.03 \| good	0.594 \| good	14.385 \| good	0.293 \| good
2025-12-06T00:00:00.000Z	23 \| good	4.477 \| good	19.471 \| good	24.777 \| good	0.525 \| good	18.827 \| good	0.283 \| good
2025-12-06T01:00:00.000Z	27 \| good	4.641 \| good	19.671 \| good	25.56 \| good	0.416 \| good	18.236 \| good	0.352 \| good
2025-12-06T02:00:00.000Z	33 \| good	5.57 \| good	23.814 \| good	18.624 \| good	0.439 \| good	25.232 \| good	0.542 \| good
2025-12-06T03:00:00.000Z	34 \| good	5.682 \| good	22.489 \| good	11.376 \| good	0.527 \| good	36.421 \| good	0.656 \| good
2025-12-06T04:00:00.000Z	54 \| moderate	10.925 \| good	45.297 \| good	9.043 \| good	0.941 \| good	36.421 \| good	0.888 \| good
2025-12-06T05:00:00.000Z	60 \| moderate	14.2 \| fine	59.207 \| fine	6.064 \| good	1 \| good	35.396 \| good	1.234 \| good
2025-12-06T06:00:00.000Z	67 \| moderate	17.722 \| fine	73.684 \| fine	1.726 \| good	1.075 \| good	33.952 \| good	1.029 \| good
2025-12-06T07:00:00.000Z	66 \| moderate	17.095 \| fine	70.596 \| fine	1.726 \| good	1.067 \| good	33.952 \| good	1.033 \| good
2025-12-06T08:00:00.000Z	73 \| moderate	20.884 \| fine	85.525 \| fine	1.553 \| good	0.878 \| good	30.464 \| good	1.217 \| good
2025-12-06T09:00:00.000Z	69 \| moderate	19.241 \| fine	80.966 \| fine	1.566 \| good	0.811 \| good	28.767 \| good	1.085 \| good
2025-12-06T10:00:00.000Z	66 \| moderate	17.335 \| fine	72.541 \| fine	1.716 \| good	0.903 \| good	26.972 \| good	1.017 \| good
2025-12-06T11:00:00.000Z	64 \| moderate	15.96 \| fine	67.6 \| fine	1.597 \| good	1.057 \| good	26.275 \| good	0.894 \| good
2025-12-06T12:00:00.000Z	67 \| moderate	18.127 \| fine	75.726 \| fine	4.311 \| good	0.796 \| good	24.68 \| good	0.888 \| good
2025-12-06T13:00:00.000Z	67 \| moderate	17.824 \| fine	74.147 \| fine	4.244 \| good	0.794 \| good	24.68 \| good	0.887 \| good
2025-12-06T14:00:00.000Z	66 \| moderate	16.552 \| fine	69.435 \| fine	1.453 \| good	0.816 \| good	23.047 \| good	0.79 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	14.507 \| fine	60.624 \| fine	1.453 \| good	0.936 \| good	22.713 \| good	0.939 \| good
2025-12-06T16:00:00.000Z	62 \| moderate	14.524 \| fine	59.413 \| fine	4.024 \| good	1.016 \| good	24.849 \| good	0.887 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	13.804 \| fine	57.831 \| fine	8.208 \| good	0.889 \| good	28.899 \| good	0.716 \| good
2025-12-06T18:00:00.000Z	62 \| moderate	14.898 \| fine	61.685 \| fine	11.593 \| good	0.718 \| good	28.039 \| good	0.476 \| good
2025-12-06T19:00:00.000Z	56 \| moderate	12.219 \| fine	53.177 \| good	15.943 \| good	1.115 \| good	21.99 \| good	0.375 \| good
2025-12-06T20:00:00.000Z	52 \| moderate	10.47 \| good	41.774 \| good	19.732 \| good	0.93 \| good	18.542 \| good	0.349 \| good
2025-12-06T21:00:00.000Z	52 \| moderate	9.961 \| good	40.302 \| good	21.431 \| good	1.041 \| good	17.204 \| good	0.353 \| good
2025-12-06T22:00:00.000Z	54 \| moderate	10.642 \| good	41.424 \| good	26.988 \| good	0.439 \| good	17.367 \| good	0.33 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	10.39 \| good	41.086 \| good	30.504 \| good	0.732 \| good	17.671 \| good	0.317 \| good
2025-12-07T00:00:00.000Z	52 \| moderate	10.289 \| good	43.26 \| good	28.811 \| good	0.769 \| good	21.283 \| good	0.376 \| good
2025-12-07T01:00:00.000Z	52 \| moderate	10.311 \| good	42.778 \| good	26.047 \| good	0.7 \| good	24.155 \| good	0.334 \| good
2025-12-07T02:00:00.000Z	52 \| moderate	10.062 \| good	44.773 \| good	20.602 \| good	0.601 \| good	30.043 \| good	0.501 \| good
2025-12-07T03:00:00.000Z	54 \| moderate	10.955 \| good	47.22 \| good	13.291 \| good	0.568 \| good	39.905 \| good	0.781 \| good
2025-12-07T04:00:00.000Z	62 \| moderate	15.279 \| fine	64.488 \| fine	9.66 \| good	0.702 \| good	40.669 \| good	0.943 \| good
2025-12-07T05:00:00.000Z	73 \| moderate	21.061 \| fine	86.351 \| fine	9.66 \| good	0.669 \| good	38.247 \| good	1.156 \| good
2025-12-07T06:00:00.000Z	81 \| moderate	25.164 \| fine	102.062 \| fine	3.116 \| good	0.841 \| good	35.151 \| good	1.264 \| good
2025-12-07T07:00:00.000Z	81 \| moderate	25.105 \| fine	102.56 \| fine	3.116 \| good	0.71 \| good	35.151 \| good	1.266 \| good
2025-12-07T08:00:00.000Z	82 \| moderate	26.226 \| fine	104.501 \| fine	1.777 \| good	0.949 \| good	31.269 \| good	1.299 \| good
2025-12-07T09:00:00.000Z	82 \| moderate	25.995 \| fine	103.387 \| fine	1.704 \| good	0.506 \| good	28.626 \| good	1.231 \| good
2025-12-07T10:00:00.000Z	82 \| moderate	26.222 \| fine	105.542 \| fine	1.618 \| good	0.932 \| good	28.62 \| good	1.116 \| good
2025-12-07T11:00:00.000Z	82 \| moderate	25.87 \| fine	103.008 \| fine	5.197 \| good	0.928 \| good	28.62 \| good	1.114 \| good
2025-12-07T12:00:00.000Z	81 \| moderate	25.492 \| fine	101.21 \| fine	3.621 \| good	0.921 \| good	28.62 \| good	1.111 \| good
2025-12-07T13:00:00.000Z	82 \| moderate	26.049 \| fine	103.889 \| fine	4.935 \| good	0.815 \| good	5.743 \| good	0.514 \| good
2025-12-07T14:00:00.000Z	79 \| moderate	23.676 \| fine	92.677 \| fine	4.102 \| good	0.575 \| good	23.05 \| good	0.846 \| good
2025-12-07T15:00:00.000Z	77 \| moderate	22.676 \| fine	91.268 \| fine	2.399 \| good	0.667 \| good	22.495 \| good	0.834 \| good
2025-12-07T16:00:00.000Z	71 \| moderate	20.308 \| fine	79.28 \| fine	2.399 \| good	0.708 \| good	23.609 \| good	0.862 \| good
2025-12-07T17:00:00.000Z	66 \| moderate	17.106 \| fine	65.333 \| fine	8.009 \| good	0.632 \| good	25.448 \| good	0.697 \| good
2025-12-07T18:00:00.000Z	66 \| moderate	17.151 \| fine	67.468 \| fine	13.177 \| good	0.55 \| good	23.574 \| good	0.517 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	15.162 \| fine	60.314 \| fine	17.429 \| good	0.663 \| good	18.734 \| good	0.396 \| good
2025-12-07T20:00:00.000Z	58 \| moderate	12.997 \| fine	52.725 \| good	21.434 \| good	0.82 \| good	14.747 \| good	0.341 \| good
2025-12-07T21:00:00.000Z	49 \| good	8.801 \| good	34.555 \| good	29.963 \| good	0.635 \| good	8.966 \| good	0.285 \| good
2025-12-07T22:00:00.000Z	44 \| good	7.933 \| good	22.847 \| good	34.188 \| good	0.687 \| good	13.417 \| good	0.316 \| good
2025-12-07T20:00:00.000Z	34 \| good	2.507 \| good	10.552 \| good	36.604 \| good	3.101 \| good	14.097 \| good	0.247 \| good
2025-12-07T21:00:00.000Z	36 \| good	3.878 \| good	16.765 \| good	38.91 \| good	3.341 \| good	13.445 \| good	0.214 \| good
2025-12-07T22:00:00.000Z	36 \| good	5.235 \| good	22.837 \| good	39.293 \| good	3.429 \| good	16.098 \| good	0.229 \| good
2025-12-07T23:00:00.000Z	38 \| good	6.512 \| good	28.755 \| good	38.644 \| good	3.517 \| good	18.751 \| good	0.244 \| good
2025-12-08T00:00:00.000Z	56 \| moderate	11.803 \| good	53.088 \| good	33.499 \| good	3.605 \| good	21.404 \| good	0.259 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	11.399 \| good	50.476 \| good	25.277 \| good	3.59 \| good	25.253 \| good	0.329 \| good
2025-12-08T02:00:00.000Z	58 \| moderate	12.871 \| fine	57.613 \| fine	20.489 \| good	3.576 \| good	29.102 \| good	0.399 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.981 \| fine	61.931 \| fine	17.021 \| good	3.562 \| good	32.951 \| good	0.469 \| good
2025-12-08T04:00:00.000Z	58 \| moderate	13.439 \| fine	60.056 \| fine	14.417 \| good	3.315 \| good	31.63 \| good	0.479 \| good
2025-12-08T05:00:00.000Z	54 \| moderate	10.803 \| good	47.451 \| good	14.514 \| good	3.068 \| good	30.308 \| good	0.489 \| good
2025-12-08T06:00:00.000Z	54 \| moderate	10.815 \| good	47.776 \| good	15.506 \| good	2.821 \| good	28.986 \| good	0.499 \| good
2025-12-08T07:00:00.000Z	52 \| moderate	10.405 \| good	45.9 \| good	15.614 \| good	2.488 \| good	27.841 \| good	0.462 \| good
2025-12-08T08:00:00.000Z	44 \| good	8.45 \| good	37.875 \| good	15.582 \| good	2.155 \| good	26.695 \| good	0.425 \| good
2025-12-08T09:00:00.000Z	33 \| good	6.118 \| good	27.467 \| good	15.267 \| good	1.823 \| good	25.55 \| good	0.389 \| good
2025-12-08T10:00:00.000Z	33 \| good	5.638 \| good	25.076 \| good	14.895 \| good	1.707 \| good	24.14 \| good	0.351 \| good
2025-12-08T11:00:00.000Z	22 \| good	4.205 \| good	18.462 \| good	13.632 \| good	1.591 \| good	22.73 \| good	0.313 \| good
2025-12-08T12:00:00.000Z	20 \| good	2.43 \| good	10.12 \| good	13.671 \| good	1.475 \| good	21.321 \| good	0.275 \| good
2025-12-08T13:00:00.000Z	20 \| good	0.994 \| good	4.098 \| good	13.904 \| good	1.573 \| good	20.837 \| good	0.273 \| good
2025-12-08T14:00:00.000Z	19 \| good	1.356 \| good	5.311 \| good	14.578 \| good	1.671 \| good	20.354 \| good	0.27 \| good
2025-12-08T15:00:00.000Z	22 \| good	3.858 \| good	16.556 \| good	14.685 \| good	1.769 \| good	19.87 \| good	0.267 \| good
2025-12-08T16:00:00.000Z	17 \| good	2.432 \| good	10.224 \| good	16.617 \| good	1.92 \| good	17.763 \| good	0.265 \| good
2025-12-08T17:00:00.000Z	22 \| good	2.676 \| good	11.134 \| good	24.193 \| good	2.07 \| good	15.655 \| good	0.264 \| good
2025-12-08T18:00:00.000Z	28 \| good	1.688 \| good	6.791 \| good	30.006 \| good	2.221 \| good	13.547 \| good	0.262 \| good
2025-12-08T19:00:00.000Z	31 \| good	1.363 \| good	5.695 \| good	33.989 \| good	2.189 \| good	12.177 \| good	0.233 \| good
2025-12-08T20:00:00.000Z	34 \| good	1.551 \| good	6.552 \| good	37.269 \| good	2.157 \| good	10.807 \| good	0.204 \| good
2025-12-08T21:00:00.000Z	37 \| good	2.6 \| good	10.95 \| good	40.159 \| good	2.125 \| good	9.436 \| good	0.175 \| good
2025-12-08T22:00:00.000Z	36 \| good	3.028 \| good	13.278 \| good	39.363 \| good	2.107 \| good	10.759 \| good	0.179 \| good
2025-12-08T23:00:00.000Z	33 \| good	3.082 \| good	13.542 \| good	36.268 \| good	2.09 \| good	12.082 \| good	0.182 \| good
2025-12-09T00:00:00.000Z	31 \| good	2.884 \| good	11.564 \| good	33.117 \| good	2.072 \| good	13.405 \| good	0.186 \| good
2025-12-09T01:00:00.000Z	21 \| good	2.192 \| good	9.329 \| good	23.496 \| good	2.032 \| good	16.844 \| good	0.214 \| good
2025-12-09T02:00:00.000Z	19 \| good	1.701 \| good	6.85 \| good	17.681 \| good	1.993 \| good	20.283 \| good	0.242 \| good
2025-12-09T03:00:00.000Z	23 \| good	1.191 \| good	4.87 \| good	16.29 \| good	1.953 \| good	23.723 \| good	0.27 \| good
2025-12-09T04:00:00.000Z	22 \| good	4.324 \| good	19.208 \| good	15.027 \| good	1.928 \| good	23.407 \| good	0.264 \| good
2025-12-09T05:00:00.000Z	22 \| good	3.106 \| good	12.767 \| good	14.58 \| good	1.903 \| good	23.091 \| good	0.257 \| good
2025-12-09T06:00:00.000Z	22 \| good	3.667 \| good	16.206 \| good	14.451 \| good	1.878 \| good	22.775 \| good	0.251 \| good
2025-12-09T07:00:00.000Z	22 \| good	3.696 \| good	16.335 \| good	14.023 \| good	1.706 \| good	21.116 \| good	0.234 \| good
2025-12-09T08:00:00.000Z	18 \| good	2.516 \| good	10.57 \| good	14.366 \| good	1.533 \| good	19.457 \| good	0.217 \| good
2025-12-09T09:00:00.000Z	17 \| good	0.737 \| good	3.007 \| good	13.438 \| good	1.36 \| good	17.797 \| good	0.201 \| good
2025-12-09T10:00:00.000Z	15 \| good	0.562 \| good	2.044 \| good	14.231 \| good	1.342 \| good	16.044 \| good	0.186 \| good
2025-12-09T11:00:00.000Z	13 \| good	0.7 \| good	2.76 \| good	14.404 \| good	1.324 \| good	14.291 \| good	0.171 \| good
2025-12-09T12:00:00.000Z	14 \| good	0.6 \| good	2.16 \| good	14.84 \| good	1.306 \| good	12.538 \| good	0.156 \| good
2025-12-09T13:00:00.000Z	15 \| good	0.656 \| good	2.193 \| good	15.505 \| good	1.448 \| good	13.924 \| good	0.165 \| good
2025-12-09T14:00:00.000Z	15 \| good	0.744 \| good	2.846 \| good	15.789 \| good	1.591 \| good	15.31 \| good	0.175 \| good
2025-12-09T15:00:00.000Z	16 \| good	0.94 \| good	3.857 \| good	15.502 \| good	1.733 \| good	16.696 \| good	0.184 \| good
2025-12-09T16:00:00.000Z	15 \| good	1.113 \| good	4.634 \| good	15.909 \| good	1.909 \| good	15.622 \| good	0.198 \| good
2025-12-09T17:00:00.000Z	22 \| good	0.497 \| good	1.933 \| good	23.604 \| good	2.086 \| good	14.547 \| good	0.213 \| good
2025-12-09T18:00:00.000Z	27 \| good	0.812 \| good	3.046 \| good	29.108 \| good	2.262 \| good	13.473 \| good	0.227 \| good
2025-12-09T19:00:00.000Z	31 \| good	1.137 \| good	4.685 \| good	33.462 \| good	2.378 \| good	12.281 \| good	0.203 \| good

La CrescentaMontrose

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Real-time air quality map: Monitor AQI near La CrescentaMontrose, California

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How accurate is California, USA air quality data?

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

Source: Ambee Data Sources

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Frequently asked questions

How frequently does the air quality data for La Crescentamontrose, California get updated?

Air quality updates for La Crescentamontrose, California are available every hour.

What time in the past 24 hours saw the poorest air quality in La Crescentamontrose, California?

La Crescentamontrose, California experienced its worst air quality at 01:00:00, 2025-12-07.

When was air quality in La Crescentamontrose, California the best over the past 24 hours?

The best air quality in La Crescentamontrose, California was observed at 05:00:00 on 2025-12-07.

What is the air quality in La Crescentamontrose, California right now?

The air quality in La Crescentamontrose, California right now is Good, with an AQI of 44.

What pollutant is most frequently found in La Crescentamontrose, California?

In La Crescentamontrose, California, PM2.5 is the most frequently found pollutant.

What can I do if the air quality in La Crescentamontrose, California is poor?

When air quality in La Crescentamontrose, California is compromised, staying indoors and wearing a mask can reduce health risks.

What is the PM_2.5 concentration in La Crescentamontrose, California right now?

La Crescentamontrose, California currently has a PM_2.5 concentration of 8.228 μg/m³.

What is the current level of PM₁₀ in La Crescentamontrose, California?

La Crescentamontrose, California currently has a PM₁₀ concentration of 24.594 μg/m³.

What is the current level of carbon monoxide (CO) in La Crescentamontrose, California?

The current carbon monoxide (CO) level in La Crescentamontrose, California is 0.534 ppm.

What is the current level of sulfur dioxide (SO₂) in La Crescentamontrose, California?

The current sulfur dioxide (SO₂) concentration in La Crescentamontrose, California is 0.657 ppb.

What is the current level of ozone (O₃) in La Crescentamontrose, California?

La Crescentamontrose, California currently has an ozone (O₃) concentration of 16.004 ppm.

What is the current level of nitrogen dioxide (NO₂) in La Crescentamontrose, California?

The current level of nitrogen dioxide (NO₂) in La Crescentamontrose, California is 23.938 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-12-05T23:00:00.000Z	27 \| good	4.749 \| good	19.013 \| good	26.03 \| good	0.594 \| good	14.385 \| good	0.293 \| good
2025-12-06T00:00:00.000Z	23 \| good	4.477 \| good	19.471 \| good	24.777 \| good	0.525 \| good	18.827 \| good	0.283 \| good
2025-12-06T01:00:00.000Z	27 \| good	4.641 \| good	19.671 \| good	25.56 \| good	0.416 \| good	18.236 \| good	0.352 \| good
2025-12-06T02:00:00.000Z	33 \| good	5.57 \| good	23.814 \| good	18.624 \| good	0.439 \| good	25.232 \| good	0.542 \| good
2025-12-06T03:00:00.000Z	34 \| good	5.682 \| good	22.489 \| good	11.376 \| good	0.527 \| good	36.421 \| good	0.656 \| good
2025-12-06T04:00:00.000Z	54 \| moderate	10.925 \| good	45.297 \| good	9.043 \| good	0.941 \| good	36.421 \| good	0.888 \| good
2025-12-06T05:00:00.000Z	60 \| moderate	14.2 \| fine	59.207 \| fine	6.064 \| good	1 \| good	35.396 \| good	1.234 \| good
2025-12-06T06:00:00.000Z	67 \| moderate	17.722 \| fine	73.684 \| fine	1.726 \| good	1.075 \| good	33.952 \| good	1.029 \| good
2025-12-06T07:00:00.000Z	66 \| moderate	17.095 \| fine	70.596 \| fine	1.726 \| good	1.067 \| good	33.952 \| good	1.033 \| good
2025-12-06T08:00:00.000Z	73 \| moderate	20.884 \| fine	85.525 \| fine	1.553 \| good	0.878 \| good	30.464 \| good	1.217 \| good
2025-12-06T09:00:00.000Z	69 \| moderate	19.241 \| fine	80.966 \| fine	1.566 \| good	0.811 \| good	28.767 \| good	1.085 \| good
2025-12-06T10:00:00.000Z	66 \| moderate	17.335 \| fine	72.541 \| fine	1.716 \| good	0.903 \| good	26.972 \| good	1.017 \| good
2025-12-06T11:00:00.000Z	64 \| moderate	15.96 \| fine	67.6 \| fine	1.597 \| good	1.057 \| good	26.275 \| good	0.894 \| good
2025-12-06T12:00:00.000Z	67 \| moderate	18.127 \| fine	75.726 \| fine	4.311 \| good	0.796 \| good	24.68 \| good	0.888 \| good
2025-12-06T13:00:00.000Z	67 \| moderate	17.824 \| fine	74.147 \| fine	4.244 \| good	0.794 \| good	24.68 \| good	0.887 \| good
2025-12-06T14:00:00.000Z	66 \| moderate	16.552 \| fine	69.435 \| fine	1.453 \| good	0.816 \| good	23.047 \| good	0.79 \| good
2025-12-06T15:00:00.000Z	62 \| moderate	14.507 \| fine	60.624 \| fine	1.453 \| good	0.936 \| good	22.713 \| good	0.939 \| good
2025-12-06T16:00:00.000Z	62 \| moderate	14.524 \| fine	59.413 \| fine	4.024 \| good	1.016 \| good	24.849 \| good	0.887 \| good
2025-12-06T17:00:00.000Z	60 \| moderate	13.804 \| fine	57.831 \| fine	8.208 \| good	0.889 \| good	28.899 \| good	0.716 \| good
2025-12-06T18:00:00.000Z	62 \| moderate	14.898 \| fine	61.685 \| fine	11.593 \| good	0.718 \| good	28.039 \| good	0.476 \| good
2025-12-06T19:00:00.000Z	56 \| moderate	12.219 \| fine	53.177 \| good	15.943 \| good	1.115 \| good	21.99 \| good	0.375 \| good
2025-12-06T20:00:00.000Z	52 \| moderate	10.47 \| good	41.774 \| good	19.732 \| good	0.93 \| good	18.542 \| good	0.349 \| good
2025-12-06T21:00:00.000Z	52 \| moderate	9.961 \| good	40.302 \| good	21.431 \| good	1.041 \| good	17.204 \| good	0.353 \| good
2025-12-06T22:00:00.000Z	54 \| moderate	10.642 \| good	41.424 \| good	26.988 \| good	0.439 \| good	17.367 \| good	0.33 \| good
2025-12-06T23:00:00.000Z	52 \| moderate	10.39 \| good	41.086 \| good	30.504 \| good	0.732 \| good	17.671 \| good	0.317 \| good
2025-12-07T00:00:00.000Z	52 \| moderate	10.289 \| good	43.26 \| good	28.811 \| good	0.769 \| good	21.283 \| good	0.376 \| good
2025-12-07T01:00:00.000Z	52 \| moderate	10.311 \| good	42.778 \| good	26.047 \| good	0.7 \| good	24.155 \| good	0.334 \| good
2025-12-07T02:00:00.000Z	52 \| moderate	10.062 \| good	44.773 \| good	20.602 \| good	0.601 \| good	30.043 \| good	0.501 \| good
2025-12-07T03:00:00.000Z	54 \| moderate	10.955 \| good	47.22 \| good	13.291 \| good	0.568 \| good	39.905 \| good	0.781 \| good
2025-12-07T04:00:00.000Z	62 \| moderate	15.279 \| fine	64.488 \| fine	9.66 \| good	0.702 \| good	40.669 \| good	0.943 \| good
2025-12-07T05:00:00.000Z	73 \| moderate	21.061 \| fine	86.351 \| fine	9.66 \| good	0.669 \| good	38.247 \| good	1.156 \| good
2025-12-07T06:00:00.000Z	81 \| moderate	25.164 \| fine	102.062 \| fine	3.116 \| good	0.841 \| good	35.151 \| good	1.264 \| good
2025-12-07T07:00:00.000Z	81 \| moderate	25.105 \| fine	102.56 \| fine	3.116 \| good	0.71 \| good	35.151 \| good	1.266 \| good
2025-12-07T08:00:00.000Z	82 \| moderate	26.226 \| fine	104.501 \| fine	1.777 \| good	0.949 \| good	31.269 \| good	1.299 \| good
2025-12-07T09:00:00.000Z	82 \| moderate	25.995 \| fine	103.387 \| fine	1.704 \| good	0.506 \| good	28.626 \| good	1.231 \| good
2025-12-07T10:00:00.000Z	82 \| moderate	26.222 \| fine	105.542 \| fine	1.618 \| good	0.932 \| good	28.62 \| good	1.116 \| good
2025-12-07T11:00:00.000Z	82 \| moderate	25.87 \| fine	103.008 \| fine	5.197 \| good	0.928 \| good	28.62 \| good	1.114 \| good
2025-12-07T12:00:00.000Z	81 \| moderate	25.492 \| fine	101.21 \| fine	3.621 \| good	0.921 \| good	28.62 \| good	1.111 \| good
2025-12-07T13:00:00.000Z	82 \| moderate	26.049 \| fine	103.889 \| fine	4.935 \| good	0.815 \| good	5.743 \| good	0.514 \| good
2025-12-07T14:00:00.000Z	79 \| moderate	23.676 \| fine	92.677 \| fine	4.102 \| good	0.575 \| good	23.05 \| good	0.846 \| good
2025-12-07T15:00:00.000Z	77 \| moderate	22.676 \| fine	91.268 \| fine	2.399 \| good	0.667 \| good	22.495 \| good	0.834 \| good
2025-12-07T16:00:00.000Z	71 \| moderate	20.308 \| fine	79.28 \| fine	2.399 \| good	0.708 \| good	23.609 \| good	0.862 \| good
2025-12-07T17:00:00.000Z	66 \| moderate	17.106 \| fine	65.333 \| fine	8.009 \| good	0.632 \| good	25.448 \| good	0.697 \| good
2025-12-07T18:00:00.000Z	66 \| moderate	17.151 \| fine	67.468 \| fine	13.177 \| good	0.55 \| good	23.574 \| good	0.517 \| good
2025-12-07T19:00:00.000Z	62 \| moderate	15.162 \| fine	60.314 \| fine	17.429 \| good	0.663 \| good	18.734 \| good	0.396 \| good
2025-12-07T20:00:00.000Z	58 \| moderate	12.997 \| fine	52.725 \| good	21.434 \| good	0.82 \| good	14.747 \| good	0.341 \| good
2025-12-07T21:00:00.000Z	49 \| good	8.801 \| good	34.555 \| good	29.963 \| good	0.635 \| good	8.966 \| good	0.285 \| good
2025-12-07T22:00:00.000Z	44 \| good	7.933 \| good	22.847 \| good	34.188 \| good	0.687 \| good	13.417 \| good	0.316 \| good
2025-12-07T20:00:00.000Z	34 \| good	2.507 \| good	10.552 \| good	36.604 \| good	3.101 \| good	14.097 \| good	0.247 \| good
2025-12-07T21:00:00.000Z	36 \| good	3.878 \| good	16.765 \| good	38.91 \| good	3.341 \| good	13.445 \| good	0.214 \| good
2025-12-07T22:00:00.000Z	36 \| good	5.235 \| good	22.837 \| good	39.293 \| good	3.429 \| good	16.098 \| good	0.229 \| good
2025-12-07T23:00:00.000Z	38 \| good	6.512 \| good	28.755 \| good	38.644 \| good	3.517 \| good	18.751 \| good	0.244 \| good
2025-12-08T00:00:00.000Z	56 \| moderate	11.803 \| good	53.088 \| good	33.499 \| good	3.605 \| good	21.404 \| good	0.259 \| good
2025-12-08T01:00:00.000Z	54 \| moderate	11.399 \| good	50.476 \| good	25.277 \| good	3.59 \| good	25.253 \| good	0.329 \| good
2025-12-08T02:00:00.000Z	58 \| moderate	12.871 \| fine	57.613 \| fine	20.489 \| good	3.576 \| good	29.102 \| good	0.399 \| good
2025-12-08T03:00:00.000Z	60 \| moderate	13.981 \| fine	61.931 \| fine	17.021 \| good	3.562 \| good	32.951 \| good	0.469 \| good
2025-12-08T04:00:00.000Z	58 \| moderate	13.439 \| fine	60.056 \| fine	14.417 \| good	3.315 \| good	31.63 \| good	0.479 \| good
2025-12-08T05:00:00.000Z	54 \| moderate	10.803 \| good	47.451 \| good	14.514 \| good	3.068 \| good	30.308 \| good	0.489 \| good
2025-12-08T06:00:00.000Z	54 \| moderate	10.815 \| good	47.776 \| good	15.506 \| good	2.821 \| good	28.986 \| good	0.499 \| good
2025-12-08T07:00:00.000Z	52 \| moderate	10.405 \| good	45.9 \| good	15.614 \| good	2.488 \| good	27.841 \| good	0.462 \| good
2025-12-08T08:00:00.000Z	44 \| good	8.45 \| good	37.875 \| good	15.582 \| good	2.155 \| good	26.695 \| good	0.425 \| good
2025-12-08T09:00:00.000Z	33 \| good	6.118 \| good	27.467 \| good	15.267 \| good	1.823 \| good	25.55 \| good	0.389 \| good
2025-12-08T10:00:00.000Z	33 \| good	5.638 \| good	25.076 \| good	14.895 \| good	1.707 \| good	24.14 \| good	0.351 \| good
2025-12-08T11:00:00.000Z	22 \| good	4.205 \| good	18.462 \| good	13.632 \| good	1.591 \| good	22.73 \| good	0.313 \| good
2025-12-08T12:00:00.000Z	20 \| good	2.43 \| good	10.12 \| good	13.671 \| good	1.475 \| good	21.321 \| good	0.275 \| good
2025-12-08T13:00:00.000Z	20 \| good	0.994 \| good	4.098 \| good	13.904 \| good	1.573 \| good	20.837 \| good	0.273 \| good
2025-12-08T14:00:00.000Z	19 \| good	1.356 \| good	5.311 \| good	14.578 \| good	1.671 \| good	20.354 \| good	0.27 \| good
2025-12-08T15:00:00.000Z	22 \| good	3.858 \| good	16.556 \| good	14.685 \| good	1.769 \| good	19.87 \| good	0.267 \| good
2025-12-08T16:00:00.000Z	17 \| good	2.432 \| good	10.224 \| good	16.617 \| good	1.92 \| good	17.763 \| good	0.265 \| good
2025-12-08T17:00:00.000Z	22 \| good	2.676 \| good	11.134 \| good	24.193 \| good	2.07 \| good	15.655 \| good	0.264 \| good
2025-12-08T18:00:00.000Z	28 \| good	1.688 \| good	6.791 \| good	30.006 \| good	2.221 \| good	13.547 \| good	0.262 \| good
2025-12-08T19:00:00.000Z	31 \| good	1.363 \| good	5.695 \| good	33.989 \| good	2.189 \| good	12.177 \| good	0.233 \| good
2025-12-08T20:00:00.000Z	34 \| good	1.551 \| good	6.552 \| good	37.269 \| good	2.157 \| good	10.807 \| good	0.204 \| good
2025-12-08T21:00:00.000Z	37 \| good	2.6 \| good	10.95 \| good	40.159 \| good	2.125 \| good	9.436 \| good	0.175 \| good
2025-12-08T22:00:00.000Z	36 \| good	3.028 \| good	13.278 \| good	39.363 \| good	2.107 \| good	10.759 \| good	0.179 \| good
2025-12-08T23:00:00.000Z	33 \| good	3.082 \| good	13.542 \| good	36.268 \| good	2.09 \| good	12.082 \| good	0.182 \| good
2025-12-09T00:00:00.000Z	31 \| good	2.884 \| good	11.564 \| good	33.117 \| good	2.072 \| good	13.405 \| good	0.186 \| good
2025-12-09T01:00:00.000Z	21 \| good	2.192 \| good	9.329 \| good	23.496 \| good	2.032 \| good	16.844 \| good	0.214 \| good
2025-12-09T02:00:00.000Z	19 \| good	1.701 \| good	6.85 \| good	17.681 \| good	1.993 \| good	20.283 \| good	0.242 \| good
2025-12-09T03:00:00.000Z	23 \| good	1.191 \| good	4.87 \| good	16.29 \| good	1.953 \| good	23.723 \| good	0.27 \| good
2025-12-09T04:00:00.000Z	22 \| good	4.324 \| good	19.208 \| good	15.027 \| good	1.928 \| good	23.407 \| good	0.264 \| good
2025-12-09T05:00:00.000Z	22 \| good	3.106 \| good	12.767 \| good	14.58 \| good	1.903 \| good	23.091 \| good	0.257 \| good
2025-12-09T06:00:00.000Z	22 \| good	3.667 \| good	16.206 \| good	14.451 \| good	1.878 \| good	22.775 \| good	0.251 \| good
2025-12-09T07:00:00.000Z	22 \| good	3.696 \| good	16.335 \| good	14.023 \| good	1.706 \| good	21.116 \| good	0.234 \| good
2025-12-09T08:00:00.000Z	18 \| good	2.516 \| good	10.57 \| good	14.366 \| good	1.533 \| good	19.457 \| good	0.217 \| good
2025-12-09T09:00:00.000Z	17 \| good	0.737 \| good	3.007 \| good	13.438 \| good	1.36 \| good	17.797 \| good	0.201 \| good
2025-12-09T10:00:00.000Z	15 \| good	0.562 \| good	2.044 \| good	14.231 \| good	1.342 \| good	16.044 \| good	0.186 \| good
2025-12-09T11:00:00.000Z	13 \| good	0.7 \| good	2.76 \| good	14.404 \| good	1.324 \| good	14.291 \| good	0.171 \| good
2025-12-09T12:00:00.000Z	14 \| good	0.6 \| good	2.16 \| good	14.84 \| good	1.306 \| good	12.538 \| good	0.156 \| good
2025-12-09T13:00:00.000Z	15 \| good	0.656 \| good	2.193 \| good	15.505 \| good	1.448 \| good	13.924 \| good	0.165 \| good
2025-12-09T14:00:00.000Z	15 \| good	0.744 \| good	2.846 \| good	15.789 \| good	1.591 \| good	15.31 \| good	0.175 \| good
2025-12-09T15:00:00.000Z	16 \| good	0.94 \| good	3.857 \| good	15.502 \| good	1.733 \| good	16.696 \| good	0.184 \| good
2025-12-09T16:00:00.000Z	15 \| good	1.113 \| good	4.634 \| good	15.909 \| good	1.909 \| good	15.622 \| good	0.198 \| good
2025-12-09T17:00:00.000Z	22 \| good	0.497 \| good	1.933 \| good	23.604 \| good	2.086 \| good	14.547 \| good	0.213 \| good
2025-12-09T18:00:00.000Z	27 \| good	0.812 \| good	3.046 \| good	29.108 \| good	2.262 \| good	13.473 \| good	0.227 \| good
2025-12-09T19:00:00.000Z	31 \| good	1.137 \| good	4.685 \| good	33.462 \| good	2.378 \| good	12.281 \| good	0.203 \| good

Current air quality index in La CrescentaMontrose, California today

Common air pollutants in La CrescentaMontrose, California

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

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Real-time air quality map: Monitor AQI near La CrescentaMontrose, California

Air quality in nearby cities

La CrescentaMontrose, California

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Glendale, California

Pasadena, California

South Pasadena, California

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Frequently asked questions

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What is the PM2.5 concentration in La Crescentamontrose, California right now?

What is the current level of PM10 in La Crescentamontrose, California?

What is the current level of carbon monoxide (CO) in La Crescentamontrose, California?

What is the current level of sulfur dioxide (SO2) in La Crescentamontrose, California?

What is the current level of ozone (O3) in La Crescentamontrose, California?

What is the current level of nitrogen dioxide (NO2) in La Crescentamontrose, California?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the PM_2.5 concentration in La Crescentamontrose, California right now?

What is the current level of PM₁₀ in La Crescentamontrose, California?

What is the current level of sulfur dioxide (SO₂) in La Crescentamontrose, California?

What is the current level of ozone (O₃) in La Crescentamontrose, California?

What is the current level of nitrogen dioxide (NO₂) in La Crescentamontrose, California?