What is the PM10 level in Downey, California at the moment?

The PM10 concentration in Downey, California is 17.621 μg/m3 at the moment.

What is the sulfur dioxide (SO2) level in Downey, California at the moment?

Currently, Downey, California has a sulfur dioxide (SO2) concentration of 0.244 ppb.

What is the ozone (O3) level in Downey, California at the moment?

The current ozone (O3) level in Downey, California at the moment is 19.253 ppm.

What is the nitrogen dioxide (NO2) level in Downey, California at the moment?

Nitrogen dioxide (NO2) level in Downey, California at the moment is 3.289 ppb.

Live air quality index in Downey, California today

Name: Live air pollution levels in Downey, California today
Creator: Ambee

Stay updated with real-time air quality in Downey, 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

Downey, California

Last updated: ... (Local time)

Major air pollutants in Downey, California

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

3.84 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

17.62 μg/m³

155

255

425

605+

Ozone (O₃)

19.25 ppb

201

201+

Sulfur Dioxide (SO₂)

0.24 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.29 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.13 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Downey, California

Get Live Pollen Counts

Downey, California

Scroll To Air Quality Map

Track live Downey, California air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-08T13:00:00.000Z	33 \| good	6.312 \| good	28.4 \| good	7.543 \| good	0.286 \| good	16.572 \| good	0.469 \| good
2025-09-08T14:00:00.000Z	38 \| good	6.588 \| good	28.535 \| good	7.139 \| good	0.324 \| good	15.96 \| good	0.514 \| good
2025-09-08T15:00:00.000Z	27 \| good	5.107 \| good	23.013 \| good	11.095 \| good	0.483 \| good	14.128 \| good	0.326 \| good
2025-09-08T16:00:00.000Z	27 \| good	5.21 \| good	25.284 \| good	16.287 \| good	0.613 \| good	8.455 \| good	0.233 \| good
2025-09-08T17:00:00.000Z	33 \| good	5.824 \| good	30.471 \| good	21.215 \| good	0.636 \| good	8.811 \| good	0.229 \| good
2025-09-08T18:00:00.000Z	38 \| good	6.778 \| good	35.54 \| good	27.864 \| good	0.649 \| good	12.504 \| good	0.227 \| good
2025-09-08T19:00:00.000Z	44 \| good	8.008 \| good	33.702 \| good	35.998 \| good	0.552 \| good	15.366 \| good	0.198 \| good
2025-09-08T20:00:00.000Z	44 \| good	7.846 \| good	32.802 \| good	39.367 \| good	0.478 \| good	14.12 \| good	0.198 \| good
2025-09-08T21:00:00.000Z	38 \| good	6.565 \| good	30.513 \| good	39.687 \| good	0.342 \| good	10.788 \| good	0.126 \| good
2025-09-08T22:00:00.000Z	35 \| good	6.114 \| good	25.734 \| good	37.59 \| good	0.326 \| good	9.088 \| good	0.129 \| good
2025-09-08T23:00:00.000Z	33 \| good	5.584 \| good	26.63 \| good	35.527 \| good	0.662 \| good	7.452 \| good	0.126 \| good
2025-09-09T00:00:00.000Z	33 \| good	5.553 \| good	24.082 \| good	32.601 \| good	4.634 \| good	8.957 \| good	0.141 \| good
2025-09-09T01:00:00.000Z	26 \| good	4.284 \| good	18.877 \| good	28.065 \| good	4.519 \| good	11.996 \| good	0.146 \| good
2025-09-09T02:00:00.000Z	25 \| good	4.205 \| good	18.643 \| good	26.696 \| good	3.818 \| good	13.135 \| good	0.143 \| good
2025-09-09T03:00:00.000Z	23 \| good	3.858 \| good	16.93 \| good	25.413 \| good	3.788 \| good	16.262 \| good	0.152 \| good
2025-09-09T04:00:00.000Z	22 \| good	3.709 \| good	16.215 \| good	21.977 \| good	4.378 \| good	20.086 \| good	0.166 \| good
2025-09-09T05:00:00.000Z	21 \| good	2.585 \| good	10.32 \| good	19.553 \| good	4.469 \| good	22.097 \| good	0.175 \| good
2025-09-09T06:00:00.000Z	23 \| good	4.107 \| good	17.895 \| good	17.105 \| good	4.559 \| good	24.109 \| good	0.184 \| good
2025-09-09T07:00:00.000Z	22 \| good	2.423 \| good	9.695 \| good	14.685 \| good	4.252 \| good	22.855 \| good	0.191 \| good
2025-09-09T08:00:00.000Z	38 \| good	6.989 \| good	32.605 \| good	8.661 \| good	0.232 \| good	9.562 \| good	0.126 \| good
2025-09-09T09:00:00.000Z	27 \| good	4.638 \| good	19.379 \| good	9.468 \| good	0.191 \| good	10.393 \| good	0.131 \| good
2025-09-09T10:00:00.000Z	27 \| good	4.714 \| good	21.641 \| good	9.511 \| good	0.167 \| good	10.393 \| good	0.131 \| good
2025-09-09T11:00:00.000Z	27 \| good	5.148 \| good	21.509 \| good	7.156 \| good	0.199 \| good	8.925 \| good	0.153 \| good
2025-09-09T12:00:00.000Z	22 \| good	4.019 \| good	17.713 \| good	7.648 \| good	0.17 \| good	8.402 \| good	0.128 \| good
2025-09-09T13:00:00.000Z	16 \| good	3.391 \| good	15.107 \| good	6.929 \| good	0.222 \| good	10.914 \| good	0.127 \| good
2025-09-09T14:00:00.000Z	22 \| good	4.196 \| good	15.966 \| good	11.078 \| good	0.37 \| good	8.26 \| good	0.129 \| good
2025-09-09T15:00:00.000Z	22 \| good	4.005 \| good	17.449 \| good	12.402 \| good	0.478 \| good	9.011 \| good	0.105 \| good
2025-09-09T16:00:00.000Z	27 \| good	4.92 \| good	21.973 \| good	16.91 \| good	0.636 \| good	5.948 \| good	0.103 \| good
2025-09-09T17:00:00.000Z	27 \| good	5.177 \| good	23.656 \| good	20.681 \| good	0.678 \| good	4.937 \| good	0.133 \| good
2025-09-09T18:00:00.000Z	33 \| good	5.765 \| good	28.375 \| good	20.515 \| good	0.267 \| good	4.898 \| good	0.104 \| good
2025-09-09T19:00:00.000Z	23 \| good	4.027 \| good	18.238 \| good	24.848 \| good	0.213 \| good	5.289 \| good	0.104 \| good
2025-09-09T20:00:00.000Z	26 \| good	4.331 \| good	19.643 \| good	28.352 \| good	0.163 \| good	7.04 \| good	0.126 \| good
2025-09-09T21:00:00.000Z	27 \| good	4.78 \| good	20.802 \| good	29.406 \| good	0.236 \| good	7.025 \| good	0.129 \| good
2025-09-09T22:00:00.000Z	29 \| good	5.288 \| good	23.561 \| good	30.791 \| good	0.157 \| good	5.703 \| good	0.125 \| good
2025-09-09T23:00:00.000Z	33 \| good	6.079 \| good	25.263 \| good	31.175 \| good	0.127 \| good	6.513 \| good	0.126 \| good
2025-09-10T00:00:00.000Z	28 \| good	4.769 \| good	22.198 \| good	30.046 \| good	0.129 \| good	6.692 \| good	0.195 \| good
2025-09-10T01:00:00.000Z	27 \| good	4.336 \| good	18.473 \| good	28.676 \| good	0.207 \| good	6.392 \| good	0.192 \| good
2025-09-10T02:00:00.000Z	25 \| good	3.613 \| good	17.757 \| good	26.656 \| good	0.229 \| good	7.397 \| good	0.192 \| good
2025-09-10T03:00:00.000Z	22 \| good	4.217 \| good	17.974 \| good	24.248 \| good	0.235 \| good	8.957 \| good	0.173 \| good
2025-09-10T04:00:00.000Z	22 \| good	4.144 \| good	17.492 \| good	19.922 \| good	0.293 \| good	10.168 \| good	0.115 \| good
2025-09-10T05:00:00.000Z	22 \| good	4.239 \| good	17.362 \| good	19.539 \| good	0.543 \| good	10.946 \| good	0.166 \| good
2025-09-10T06:00:00.000Z	18 \| good	2.457 \| good	11.373 \| good	18.674 \| good	0.25 \| good	10.673 \| good	0.179 \| good
2025-09-10T07:00:00.000Z	22 \| good	4.339 \| good	19.616 \| good	18.538 \| good	0.182 \| good	9.128 \| good	0.166 \| good
2025-09-10T08:00:00.000Z	33 \| good	5.727 \| good	23.072 \| good	16.563 \| good	0.262 \| good	10.594 \| good	0.153 \| good
2025-09-10T09:00:00.000Z	38 \| good	7.359 \| good	31.676 \| good	16.561 \| good	0.234 \| good	7.512 \| good	0.1 \| good
2025-09-10T10:00:00.000Z	38 \| good	7.307 \| good	32.166 \| good	14.955 \| good	0.399 \| good	7.108 \| good	0.1 \| good
2025-09-10T11:00:00.000Z	33 \| good	6.181 \| good	27.888 \| good	16.03 \| good	0.214 \| good	5.156 \| good	0.113 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.843 \| good	17.621 \| good	19.253 \| good	0.244 \| good	3.289 \| good	0.126 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.843 \| good	17.621 \| good	19.253 \| good	0.244 \| good	3.289 \| good	0.126 \| good
2025-09-10T13:00:00.000Z	16 \| good	1.059 \| good	4.224 \| good	16.955 \| good	3.122 \| good	11.017 \| good	0.126 \| good
2025-09-10T14:00:00.000Z	16 \| good	1.845 \| good	7.489 \| good	17.333 \| good	2.794 \| good	9.456 \| good	0.125 \| good
2025-09-10T15:00:00.000Z	19 \| good	2.965 \| good	12.509 \| good	21.396 \| good	2.466 \| good	7.895 \| good	0.125 \| good
2025-09-10T16:00:00.000Z	24 \| good	3.258 \| good	13.877 \| good	26.112 \| good	2.225 \| good	6.68 \| good	0.122 \| good
2025-09-10T17:00:00.000Z	26 \| good	3.334 \| good	14.215 \| good	28.332 \| good	1.985 \| good	5.465 \| good	0.118 \| good
2025-09-10T18:00:00.000Z	29 \| good	4.306 \| good	18.964 \| good	30.721 \| good	1.744 \| good	4.25 \| good	0.115 \| good
2025-09-10T19:00:00.000Z	34 \| good	5.554 \| good	24.055 \| good	37.339 \| good	1.852 \| good	3.979 \| good	0.115 \| good
2025-09-10T20:00:00.000Z	39 \| good	5.63 \| good	24.254 \| good	42.389 \| good	1.96 \| good	3.709 \| good	0.114 \| good
2025-09-10T21:00:00.000Z	41 \| good	7.313 \| good	32.453 \| good	44.364 \| good	2.068 \| good	3.439 \| good	0.114 \| good
2025-09-10T22:00:00.000Z	44 \| good	7.539 \| good	33.194 \| good	44.907 \| good	2.276 \| good	3.898 \| good	0.115 \| good
2025-09-10T23:00:00.000Z	39 \| good	7.309 \| good	32.31 \| good	41.791 \| good	2.483 \| good	4.358 \| good	0.117 \| good
2025-09-11T00:00:00.000Z	44 \| good	7.676 \| good	33.619 \| good	42.121 \| good	2.69 \| good	4.817 \| good	0.118 \| good
2025-09-11T01:00:00.000Z	32 \| good	3.539 \| good	15.384 \| good	35.045 \| good	2.944 \| good	7.114 \| good	0.122 \| good
2025-09-11T02:00:00.000Z	27 \| good	3.681 \| good	16.182 \| good	28.535 \| good	3.198 \| good	9.412 \| good	0.127 \| good
2025-09-11T03:00:00.000Z	26 \| good	2.46 \| good	10.128 \| good	28.19 \| good	3.452 \| good	11.709 \| good	0.131 \| good
2025-09-11T04:00:00.000Z	22 \| good	2.851 \| good	11.691 \| good	24.217 \| good	3.714 \| good	13.564 \| good	0.135 \| good
2025-09-11T05:00:00.000Z	21 \| good	2.14 \| good	9.003 \| good	22.879 \| good	3.977 \| good	15.419 \| good	0.139 \| good
2025-09-11T06:00:00.000Z	19 \| good	3.393 \| good	14.069 \| good	20.374 \| good	4.24 \| good	17.274 \| good	0.142 \| good
2025-09-11T07:00:00.000Z	19 \| good	0.981 \| good	4.032 \| good	20.878 \| good	4.279 \| good	18.203 \| good	0.145 \| good
2025-09-11T08:00:00.000Z	19 \| good	0.932 \| good	3.496 \| good	20.146 \| good	4.318 \| good	19.133 \| good	0.148 \| good
2025-09-11T09:00:00.000Z	19 \| good	2.425 \| good	9.968 \| good	17.469 \| good	4.357 \| good	20.063 \| good	0.151 \| good
2025-09-11T10:00:00.000Z	19 \| good	2.122 \| good	8.715 \| good	15.55 \| good	4.571 \| good	19.52 \| good	0.147 \| good
2025-09-11T11:00:00.000Z	18 \| good	2.806 \| good	11.54 \| good	15.396 \| good	4.786 \| good	18.978 \| good	0.144 \| good
2025-09-11T12:00:00.000Z	17 \| good	1.776 \| good	7.22 \| good	15.399 \| good	5 \| good	18.435 \| good	0.14 \| good
2025-09-11T13:00:00.000Z	16 \| good	2.619 \| good	11.431 \| good	13.555 \| good	4.966 \| good	16.663 \| good	0.146 \| good
2025-09-11T14:00:00.000Z	15 \| good	2.051 \| good	8.686 \| good	15.571 \| good	4.933 \| good	14.892 \| good	0.152 \| good
2025-09-11T15:00:00.000Z	16 \| good	2.963 \| good	12.848 \| good	16.652 \| good	4.899 \| good	13.12 \| good	0.158 \| good
2025-09-11T16:00:00.000Z	22 \| good	3.876 \| good	16.892 \| good	20.134 \| good	4.373 \| good	10.881 \| good	0.148 \| good
2025-09-11T17:00:00.000Z	22 \| good	4.199 \| good	18.775 \| good	23.804 \| good	3.847 \| good	8.643 \| good	0.138 \| good
2025-09-11T18:00:00.000Z	27 \| good	3.806 \| good	16.587 \| good	28.73 \| good	3.321 \| good	6.404 \| good	0.129 \| good
2025-09-11T19:00:00.000Z	32 \| good	3.912 \| good	16.899 \| good	34.71 \| good	3.361 \| good	5.972 \| good	0.127 \| good
2025-09-11T20:00:00.000Z	36 \| good	3.673 \| good	15.865 \| good	39.494 \| good	3.401 \| good	5.539 \| good	0.126 \| good
2025-09-11T21:00:00.000Z	39 \| good	3.336 \| good	14.6 \| good	41.503 \| good	3.44 \| good	5.106 \| good	0.124 \| good
2025-09-11T22:00:00.000Z	38 \| good	3.202 \| good	13.78 \| good	41.034 \| good	3.563 \| good	5.478 \| good	0.125 \| good
2025-09-11T23:00:00.000Z	34 \| good	2.769 \| good	11.197 \| good	37.286 \| good	3.687 \| good	5.85 \| good	0.126 \| good
2025-09-12T00:00:00.000Z	35 \| good	4.544 \| good	20.107 \| good	38.162 \| good	3.81 \| good	6.222 \| good	0.127 \| good
2025-09-12T01:00:00.000Z	32 \| good	4.23 \| good	18.621 \| good	34.832 \| good	3.952 \| good	8.756 \| good	0.134 \| good
2025-09-12T02:00:00.000Z	28 \| good	5.007 \| good	21.411 \| good	30.177 \| good	4.095 \| good	11.29 \| good	0.142 \| good
2025-09-12T03:00:00.000Z	26 \| good	3.072 \| good	13.339 \| good	27.878 \| good	4.237 \| good	13.823 \| good	0.149 \| good
2025-09-12T04:00:00.000Z	23 \| good	3.927 \| good	16.964 \| good	24.887 \| good	4.442 \| good	16.283 \| good	0.157 \| good
2025-09-12T05:00:00.000Z	21 \| good	3.323 \| good	14.027 \| good	23.006 \| good	4.647 \| good	18.743 \| good	0.164 \| good
2025-09-12T06:00:00.000Z	62 \| moderate	15.369 \| fine	17.236 \| good	15.937 \| good	4.889 \| good	21.28 \| good	0.173 \| good
2025-09-12T07:00:00.000Z	21 \| good	2.996 \| good	12 \| good	21.183 \| good	4.715 \| good	21.831 \| good	0.177 \| good
2025-09-12T08:00:00.000Z	21 \| good	2.645 \| good	10.912 \| good	19.5 \| good	4.577 \| good	22.459 \| good	0.181 \| good
2025-09-12T09:00:00.000Z	22 \| good	2.831 \| good	11.653 \| good	18.405 \| good	4.439 \| good	23.087 \| good	0.185 \| good
2025-09-12T10:00:00.000Z	22 \| good	1.671 \| good	7.137 \| good	18.059 \| good	4.287 \| good	22.611 \| good	0.183 \| good
2025-09-12T11:00:00.000Z	21 \| good	2.053 \| good	8.382 \| good	17.065 \| good	4.136 \| good	22.136 \| good	0.181 \| good
2025-09-12T12:00:00.000Z	67 \| moderate	18.216 \| fine	20.45 \| good	10.803 \| good	4.004 \| good	21.755 \| good	0.179 \| good

Downey

Get reliable air quality data to drive your business

Downey, California air quality map: Stay updated on AQI near you

0.12ppm

How accurate is California, USA air quality data?

Air quality and pollutant data for California, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.

Source: Ambee Data Sources

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Frequently asked questions

How often is air quality information updated for Downey, California?

The air quality information for Downey, California is updated every hour for accuracy.

What time in the last 24 hours was the air quality in Downey, California at its worst?

In the past 24 hours, the air quality in Downey, California was at its worst at 10:00:00 on 2025-09-10.

When did Downey, California experience the best air quality in the last 24 hours?

In the last 24 hours, the best air quality in Downey, California was observed at 01:00:00 on 2025-09-09.

What is the AQI in Downey, California right now?

As of now, the AQI in Downey, California is 22, indicating Good conditions.

What is the most common type of pollution in Downey, California?

Downey, California air has the highest levels of PM2.5.

What should I do in case of poor air quality in Downey, California?

Poor air quality in Downey, California means it's advisable to stay indoors and wear a mask for your protection.

What is the PM_2.5 level in Downey, California at the moment?

PM_2.5 levels in Downey, California are currently 3.843 μg/m³.

What is the PM₁₀ level in Downey, California at the moment?

The PM₁₀ concentration in Downey, California is 17.621 μg/m³ at the moment.

What is the carbon monoxide (CO) level in Downey, California at the moment?

The current carbon monoxide (CO) concentration in Downey, California is 0.126 ppm.

What is the sulfur dioxide (SO₂) level in Downey, California at the moment?

Currently, Downey, California has a sulfur dioxide (SO₂) concentration of 0.244 ppb.

What is the ozone (O₃) level in Downey, California at the moment?

The current ozone (O₃) level in Downey, California at the moment is 19.253 ppm.

What is the nitrogen dioxide (NO₂) level in Downey, California at the moment?

Nitrogen dioxide (NO₂) level in Downey, California at the moment is 3.289 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-09-08T13:00:00.000Z	33 \| good	6.312 \| good	28.4 \| good	7.543 \| good	0.286 \| good	16.572 \| good	0.469 \| good
2025-09-08T14:00:00.000Z	38 \| good	6.588 \| good	28.535 \| good	7.139 \| good	0.324 \| good	15.96 \| good	0.514 \| good
2025-09-08T15:00:00.000Z	27 \| good	5.107 \| good	23.013 \| good	11.095 \| good	0.483 \| good	14.128 \| good	0.326 \| good
2025-09-08T16:00:00.000Z	27 \| good	5.21 \| good	25.284 \| good	16.287 \| good	0.613 \| good	8.455 \| good	0.233 \| good
2025-09-08T17:00:00.000Z	33 \| good	5.824 \| good	30.471 \| good	21.215 \| good	0.636 \| good	8.811 \| good	0.229 \| good
2025-09-08T18:00:00.000Z	38 \| good	6.778 \| good	35.54 \| good	27.864 \| good	0.649 \| good	12.504 \| good	0.227 \| good
2025-09-08T19:00:00.000Z	44 \| good	8.008 \| good	33.702 \| good	35.998 \| good	0.552 \| good	15.366 \| good	0.198 \| good
2025-09-08T20:00:00.000Z	44 \| good	7.846 \| good	32.802 \| good	39.367 \| good	0.478 \| good	14.12 \| good	0.198 \| good
2025-09-08T21:00:00.000Z	38 \| good	6.565 \| good	30.513 \| good	39.687 \| good	0.342 \| good	10.788 \| good	0.126 \| good
2025-09-08T22:00:00.000Z	35 \| good	6.114 \| good	25.734 \| good	37.59 \| good	0.326 \| good	9.088 \| good	0.129 \| good
2025-09-08T23:00:00.000Z	33 \| good	5.584 \| good	26.63 \| good	35.527 \| good	0.662 \| good	7.452 \| good	0.126 \| good
2025-09-09T00:00:00.000Z	33 \| good	5.553 \| good	24.082 \| good	32.601 \| good	4.634 \| good	8.957 \| good	0.141 \| good
2025-09-09T01:00:00.000Z	26 \| good	4.284 \| good	18.877 \| good	28.065 \| good	4.519 \| good	11.996 \| good	0.146 \| good
2025-09-09T02:00:00.000Z	25 \| good	4.205 \| good	18.643 \| good	26.696 \| good	3.818 \| good	13.135 \| good	0.143 \| good
2025-09-09T03:00:00.000Z	23 \| good	3.858 \| good	16.93 \| good	25.413 \| good	3.788 \| good	16.262 \| good	0.152 \| good
2025-09-09T04:00:00.000Z	22 \| good	3.709 \| good	16.215 \| good	21.977 \| good	4.378 \| good	20.086 \| good	0.166 \| good
2025-09-09T05:00:00.000Z	21 \| good	2.585 \| good	10.32 \| good	19.553 \| good	4.469 \| good	22.097 \| good	0.175 \| good
2025-09-09T06:00:00.000Z	23 \| good	4.107 \| good	17.895 \| good	17.105 \| good	4.559 \| good	24.109 \| good	0.184 \| good
2025-09-09T07:00:00.000Z	22 \| good	2.423 \| good	9.695 \| good	14.685 \| good	4.252 \| good	22.855 \| good	0.191 \| good
2025-09-09T08:00:00.000Z	38 \| good	6.989 \| good	32.605 \| good	8.661 \| good	0.232 \| good	9.562 \| good	0.126 \| good
2025-09-09T09:00:00.000Z	27 \| good	4.638 \| good	19.379 \| good	9.468 \| good	0.191 \| good	10.393 \| good	0.131 \| good
2025-09-09T10:00:00.000Z	27 \| good	4.714 \| good	21.641 \| good	9.511 \| good	0.167 \| good	10.393 \| good	0.131 \| good
2025-09-09T11:00:00.000Z	27 \| good	5.148 \| good	21.509 \| good	7.156 \| good	0.199 \| good	8.925 \| good	0.153 \| good
2025-09-09T12:00:00.000Z	22 \| good	4.019 \| good	17.713 \| good	7.648 \| good	0.17 \| good	8.402 \| good	0.128 \| good
2025-09-09T13:00:00.000Z	16 \| good	3.391 \| good	15.107 \| good	6.929 \| good	0.222 \| good	10.914 \| good	0.127 \| good
2025-09-09T14:00:00.000Z	22 \| good	4.196 \| good	15.966 \| good	11.078 \| good	0.37 \| good	8.26 \| good	0.129 \| good
2025-09-09T15:00:00.000Z	22 \| good	4.005 \| good	17.449 \| good	12.402 \| good	0.478 \| good	9.011 \| good	0.105 \| good
2025-09-09T16:00:00.000Z	27 \| good	4.92 \| good	21.973 \| good	16.91 \| good	0.636 \| good	5.948 \| good	0.103 \| good
2025-09-09T17:00:00.000Z	27 \| good	5.177 \| good	23.656 \| good	20.681 \| good	0.678 \| good	4.937 \| good	0.133 \| good
2025-09-09T18:00:00.000Z	33 \| good	5.765 \| good	28.375 \| good	20.515 \| good	0.267 \| good	4.898 \| good	0.104 \| good
2025-09-09T19:00:00.000Z	23 \| good	4.027 \| good	18.238 \| good	24.848 \| good	0.213 \| good	5.289 \| good	0.104 \| good
2025-09-09T20:00:00.000Z	26 \| good	4.331 \| good	19.643 \| good	28.352 \| good	0.163 \| good	7.04 \| good	0.126 \| good
2025-09-09T21:00:00.000Z	27 \| good	4.78 \| good	20.802 \| good	29.406 \| good	0.236 \| good	7.025 \| good	0.129 \| good
2025-09-09T22:00:00.000Z	29 \| good	5.288 \| good	23.561 \| good	30.791 \| good	0.157 \| good	5.703 \| good	0.125 \| good
2025-09-09T23:00:00.000Z	33 \| good	6.079 \| good	25.263 \| good	31.175 \| good	0.127 \| good	6.513 \| good	0.126 \| good
2025-09-10T00:00:00.000Z	28 \| good	4.769 \| good	22.198 \| good	30.046 \| good	0.129 \| good	6.692 \| good	0.195 \| good
2025-09-10T01:00:00.000Z	27 \| good	4.336 \| good	18.473 \| good	28.676 \| good	0.207 \| good	6.392 \| good	0.192 \| good
2025-09-10T02:00:00.000Z	25 \| good	3.613 \| good	17.757 \| good	26.656 \| good	0.229 \| good	7.397 \| good	0.192 \| good
2025-09-10T03:00:00.000Z	22 \| good	4.217 \| good	17.974 \| good	24.248 \| good	0.235 \| good	8.957 \| good	0.173 \| good
2025-09-10T04:00:00.000Z	22 \| good	4.144 \| good	17.492 \| good	19.922 \| good	0.293 \| good	10.168 \| good	0.115 \| good
2025-09-10T05:00:00.000Z	22 \| good	4.239 \| good	17.362 \| good	19.539 \| good	0.543 \| good	10.946 \| good	0.166 \| good
2025-09-10T06:00:00.000Z	18 \| good	2.457 \| good	11.373 \| good	18.674 \| good	0.25 \| good	10.673 \| good	0.179 \| good
2025-09-10T07:00:00.000Z	22 \| good	4.339 \| good	19.616 \| good	18.538 \| good	0.182 \| good	9.128 \| good	0.166 \| good
2025-09-10T08:00:00.000Z	33 \| good	5.727 \| good	23.072 \| good	16.563 \| good	0.262 \| good	10.594 \| good	0.153 \| good
2025-09-10T09:00:00.000Z	38 \| good	7.359 \| good	31.676 \| good	16.561 \| good	0.234 \| good	7.512 \| good	0.1 \| good
2025-09-10T10:00:00.000Z	38 \| good	7.307 \| good	32.166 \| good	14.955 \| good	0.399 \| good	7.108 \| good	0.1 \| good
2025-09-10T11:00:00.000Z	33 \| good	6.181 \| good	27.888 \| good	16.03 \| good	0.214 \| good	5.156 \| good	0.113 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.843 \| good	17.621 \| good	19.253 \| good	0.244 \| good	3.289 \| good	0.126 \| good
2025-09-10T12:00:00.000Z	22 \| good	3.843 \| good	17.621 \| good	19.253 \| good	0.244 \| good	3.289 \| good	0.126 \| good
2025-09-10T13:00:00.000Z	16 \| good	1.059 \| good	4.224 \| good	16.955 \| good	3.122 \| good	11.017 \| good	0.126 \| good
2025-09-10T14:00:00.000Z	16 \| good	1.845 \| good	7.489 \| good	17.333 \| good	2.794 \| good	9.456 \| good	0.125 \| good
2025-09-10T15:00:00.000Z	19 \| good	2.965 \| good	12.509 \| good	21.396 \| good	2.466 \| good	7.895 \| good	0.125 \| good
2025-09-10T16:00:00.000Z	24 \| good	3.258 \| good	13.877 \| good	26.112 \| good	2.225 \| good	6.68 \| good	0.122 \| good
2025-09-10T17:00:00.000Z	26 \| good	3.334 \| good	14.215 \| good	28.332 \| good	1.985 \| good	5.465 \| good	0.118 \| good
2025-09-10T18:00:00.000Z	29 \| good	4.306 \| good	18.964 \| good	30.721 \| good	1.744 \| good	4.25 \| good	0.115 \| good
2025-09-10T19:00:00.000Z	34 \| good	5.554 \| good	24.055 \| good	37.339 \| good	1.852 \| good	3.979 \| good	0.115 \| good
2025-09-10T20:00:00.000Z	39 \| good	5.63 \| good	24.254 \| good	42.389 \| good	1.96 \| good	3.709 \| good	0.114 \| good
2025-09-10T21:00:00.000Z	41 \| good	7.313 \| good	32.453 \| good	44.364 \| good	2.068 \| good	3.439 \| good	0.114 \| good
2025-09-10T22:00:00.000Z	44 \| good	7.539 \| good	33.194 \| good	44.907 \| good	2.276 \| good	3.898 \| good	0.115 \| good
2025-09-10T23:00:00.000Z	39 \| good	7.309 \| good	32.31 \| good	41.791 \| good	2.483 \| good	4.358 \| good	0.117 \| good
2025-09-11T00:00:00.000Z	44 \| good	7.676 \| good	33.619 \| good	42.121 \| good	2.69 \| good	4.817 \| good	0.118 \| good
2025-09-11T01:00:00.000Z	32 \| good	3.539 \| good	15.384 \| good	35.045 \| good	2.944 \| good	7.114 \| good	0.122 \| good
2025-09-11T02:00:00.000Z	27 \| good	3.681 \| good	16.182 \| good	28.535 \| good	3.198 \| good	9.412 \| good	0.127 \| good
2025-09-11T03:00:00.000Z	26 \| good	2.46 \| good	10.128 \| good	28.19 \| good	3.452 \| good	11.709 \| good	0.131 \| good
2025-09-11T04:00:00.000Z	22 \| good	2.851 \| good	11.691 \| good	24.217 \| good	3.714 \| good	13.564 \| good	0.135 \| good
2025-09-11T05:00:00.000Z	21 \| good	2.14 \| good	9.003 \| good	22.879 \| good	3.977 \| good	15.419 \| good	0.139 \| good
2025-09-11T06:00:00.000Z	19 \| good	3.393 \| good	14.069 \| good	20.374 \| good	4.24 \| good	17.274 \| good	0.142 \| good
2025-09-11T07:00:00.000Z	19 \| good	0.981 \| good	4.032 \| good	20.878 \| good	4.279 \| good	18.203 \| good	0.145 \| good
2025-09-11T08:00:00.000Z	19 \| good	0.932 \| good	3.496 \| good	20.146 \| good	4.318 \| good	19.133 \| good	0.148 \| good
2025-09-11T09:00:00.000Z	19 \| good	2.425 \| good	9.968 \| good	17.469 \| good	4.357 \| good	20.063 \| good	0.151 \| good
2025-09-11T10:00:00.000Z	19 \| good	2.122 \| good	8.715 \| good	15.55 \| good	4.571 \| good	19.52 \| good	0.147 \| good
2025-09-11T11:00:00.000Z	18 \| good	2.806 \| good	11.54 \| good	15.396 \| good	4.786 \| good	18.978 \| good	0.144 \| good
2025-09-11T12:00:00.000Z	17 \| good	1.776 \| good	7.22 \| good	15.399 \| good	5 \| good	18.435 \| good	0.14 \| good
2025-09-11T13:00:00.000Z	16 \| good	2.619 \| good	11.431 \| good	13.555 \| good	4.966 \| good	16.663 \| good	0.146 \| good
2025-09-11T14:00:00.000Z	15 \| good	2.051 \| good	8.686 \| good	15.571 \| good	4.933 \| good	14.892 \| good	0.152 \| good
2025-09-11T15:00:00.000Z	16 \| good	2.963 \| good	12.848 \| good	16.652 \| good	4.899 \| good	13.12 \| good	0.158 \| good
2025-09-11T16:00:00.000Z	22 \| good	3.876 \| good	16.892 \| good	20.134 \| good	4.373 \| good	10.881 \| good	0.148 \| good
2025-09-11T17:00:00.000Z	22 \| good	4.199 \| good	18.775 \| good	23.804 \| good	3.847 \| good	8.643 \| good	0.138 \| good
2025-09-11T18:00:00.000Z	27 \| good	3.806 \| good	16.587 \| good	28.73 \| good	3.321 \| good	6.404 \| good	0.129 \| good
2025-09-11T19:00:00.000Z	32 \| good	3.912 \| good	16.899 \| good	34.71 \| good	3.361 \| good	5.972 \| good	0.127 \| good
2025-09-11T20:00:00.000Z	36 \| good	3.673 \| good	15.865 \| good	39.494 \| good	3.401 \| good	5.539 \| good	0.126 \| good
2025-09-11T21:00:00.000Z	39 \| good	3.336 \| good	14.6 \| good	41.503 \| good	3.44 \| good	5.106 \| good	0.124 \| good
2025-09-11T22:00:00.000Z	38 \| good	3.202 \| good	13.78 \| good	41.034 \| good	3.563 \| good	5.478 \| good	0.125 \| good
2025-09-11T23:00:00.000Z	34 \| good	2.769 \| good	11.197 \| good	37.286 \| good	3.687 \| good	5.85 \| good	0.126 \| good
2025-09-12T00:00:00.000Z	35 \| good	4.544 \| good	20.107 \| good	38.162 \| good	3.81 \| good	6.222 \| good	0.127 \| good
2025-09-12T01:00:00.000Z	32 \| good	4.23 \| good	18.621 \| good	34.832 \| good	3.952 \| good	8.756 \| good	0.134 \| good
2025-09-12T02:00:00.000Z	28 \| good	5.007 \| good	21.411 \| good	30.177 \| good	4.095 \| good	11.29 \| good	0.142 \| good
2025-09-12T03:00:00.000Z	26 \| good	3.072 \| good	13.339 \| good	27.878 \| good	4.237 \| good	13.823 \| good	0.149 \| good
2025-09-12T04:00:00.000Z	23 \| good	3.927 \| good	16.964 \| good	24.887 \| good	4.442 \| good	16.283 \| good	0.157 \| good
2025-09-12T05:00:00.000Z	21 \| good	3.323 \| good	14.027 \| good	23.006 \| good	4.647 \| good	18.743 \| good	0.164 \| good
2025-09-12T06:00:00.000Z	62 \| moderate	15.369 \| fine	17.236 \| good	15.937 \| good	4.889 \| good	21.28 \| good	0.173 \| good
2025-09-12T07:00:00.000Z	21 \| good	2.996 \| good	12 \| good	21.183 \| good	4.715 \| good	21.831 \| good	0.177 \| good
2025-09-12T08:00:00.000Z	21 \| good	2.645 \| good	10.912 \| good	19.5 \| good	4.577 \| good	22.459 \| good	0.181 \| good
2025-09-12T09:00:00.000Z	22 \| good	2.831 \| good	11.653 \| good	18.405 \| good	4.439 \| good	23.087 \| good	0.185 \| good
2025-09-12T10:00:00.000Z	22 \| good	1.671 \| good	7.137 \| good	18.059 \| good	4.287 \| good	22.611 \| good	0.183 \| good
2025-09-12T11:00:00.000Z	21 \| good	2.053 \| good	8.382 \| good	17.065 \| good	4.136 \| good	22.136 \| good	0.181 \| good
2025-09-12T12:00:00.000Z	67 \| moderate	18.216 \| fine	20.45 \| good	10.803 \| good	4.004 \| good	21.755 \| good	0.179 \| good

Live air quality index in Downey, California today

Major air pollutants in Downey, 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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Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

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