What are the current PM10 levels at Louisville, Kentucky?

The current PM10 levels in Louisville, Kentucky are 30.604 μg/m3.

What are the current sulfur dioxide (SO2) levels at Louisville, Kentucky?

The current sulfur dioxide (SO2) levels in Louisville, Kentucky are 1.369 ppb.

What are the current ozone (O3) levels at Louisville, Kentucky?

The current ozone (O3) levels at Louisville, Kentucky is 22.262 ppm.

What are the current nitrogen dioxide (NO2) levels at Louisville, Kentucky?

The current nitrogen dioxide (NO2) levels at Louisville, Kentucky is 7.739 ppb.

Real-time air quality index in Louisville, Kentucky today

Q: What are the current PM2.5 levels in Louisville, Kentucky?

The measured PM2.5 levels in Louisville, Kentucky at present are 8.006 μg/m3.

Stay updated with real-time air quality in Louisville, Kentucky 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

Louisville, Kentucky

Last updated: ... (Local time)

Common air pollutants in Louisville, Kentucky

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

8.01 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

30.60 μg/m³

155

255

425

605+

Ozone (O₃)

22.26 ppb

201

201+

Sulfur Dioxide (SO₂)

1.37 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

7.74 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.10 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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Louisville, Kentucky

Scroll To Air Quality Map

Track live Louisville, Kentucky air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-09T18:00:00.000Z	44 \| good	8.447 \| good	28.573 \| good	25.192 \| good	0.439 \| good	8.786 \| good	0.154 \| good
2026-03-09T19:00:00.000Z	44 \| good	8.291 \| good	27.317 \| good	28.246 \| good	0.516 \| good	8.256 \| good	0.154 \| good
2026-03-09T20:00:00.000Z	44 \| good	8.054 \| good	27.049 \| good	30.153 \| good	0.715 \| good	10.025 \| good	0.205 \| good
2026-03-09T21:00:00.000Z	44 \| good	8.226 \| good	27.747 \| good	30.713 \| good	0.577 \| good	9.016 \| good	0.205 \| good
2026-03-09T22:00:00.000Z	44 \| good	8.409 \| good	29.549 \| good	30.489 \| good	0.734 \| good	9.614 \| good	0.205 \| good
2026-03-09T23:00:00.000Z	49 \| good	8.585 \| good	28.866 \| good	30.664 \| good	0.754 \| good	10.848 \| good	0.205 \| good
2026-03-10T00:00:00.000Z	44 \| good	8.403 \| good	27.278 \| good	32.758 \| good	0.522 \| good	12.156 \| good	0.247 \| good
2026-03-10T01:00:00.000Z	49 \| good	8.635 \| good	27.063 \| good	31.421 \| good	0.409 \| good	14.192 \| good	0.247 \| good
2026-03-10T02:00:00.000Z	49 \| good	8.631 \| good	27.409 \| good	29.649 \| good	0.46 \| good	14.201 \| good	0.205 \| good
2026-03-10T03:00:00.000Z	44 \| good	7.575 \| good	33.583 \| good	28.026 \| good	0.595 \| good	3.146 \| good	0.138 \| good
2026-03-10T04:00:00.000Z	52 \| moderate	10.116 \| good	32.901 \| good	24.591 \| good	0.613 \| good	12.569 \| good	0.156 \| good
2026-03-10T05:00:00.000Z	56 \| moderate	11.941 \| good	36.188 \| good	23.533 \| good	0.819 \| good	9.309 \| good	0.156 \| good
2026-03-10T06:00:00.000Z	54 \| moderate	11.381 \| good	38.85 \| good	23.172 \| good	0.672 \| good	7.474 \| good	0.104 \| good
2026-03-10T07:00:00.000Z	56 \| moderate	11.789 \| good	41.885 \| good	23.646 \| good	0.608 \| good	5.743 \| good	0.11 \| good
2026-03-10T08:00:00.000Z	52 \| moderate	10.012 \| good	32.516 \| good	22.859 \| good	0.455 \| good	9.661 \| good	0.155 \| good
2026-03-10T09:00:00.000Z	54 \| moderate	10.867 \| good	35.513 \| good	22.686 \| good	0.447 \| good	13.465 \| good	0.155 \| good
2026-03-10T10:00:00.000Z	54 \| moderate	10.555 \| good	37.682 \| good	23.145 \| good	0.553 \| good	12.301 \| good	0.155 \| good
2026-03-10T11:00:00.000Z	44 \| good	8.024 \| good	29.29 \| good	24.469 \| good	0.462 \| good	12.578 \| good	0.154 \| good
2026-03-10T12:00:00.000Z	38 \| good	6.652 \| good	24.986 \| good	20.871 \| good	0.883 \| good	16.776 \| good	0.298 \| good
2026-03-10T13:00:00.000Z	38 \| good	6.825 \| good	25.71 \| good	21.94 \| good	0.827 \| good	11.126 \| good	0.196 \| good
2026-03-10T14:00:00.000Z	27 \| good	5.29 \| good	20.83 \| good	20.877 \| good	1.194 \| good	16.715 \| good	0.255 \| good
2026-03-10T15:00:00.000Z	27 \| good	5.008 \| good	19.465 \| good	20.128 \| good	0.926 \| good	13.391 \| good	0.161 \| good
2026-03-10T16:00:00.000Z	27 \| good	5.473 \| good	21.186 \| good	21.919 \| good	0.85 \| good	10.059 \| good	0.154 \| good
2026-03-10T17:00:00.000Z	33 \| good	6.183 \| good	23.27 \| good	22.443 \| good	0.763 \| good	9.016 \| good	0.154 \| good
2026-03-10T18:00:00.000Z	38 \| good	6.728 \| good	24.913 \| good	23.578 \| good	0.763 \| good	4.86 \| good	0.11 \| good
2026-03-10T19:00:00.000Z	44 \| good	7.807 \| good	26.948 \| good	23.889 \| good	0.746 \| good	4.387 \| good	0.11 \| good
2026-03-10T20:00:00.000Z	49 \| good	8.568 \| good	29.494 \| good	24.391 \| good	0.893 \| good	10.886 \| good	0.205 \| good
2026-03-10T21:00:00.000Z	49 \| good	8.695 \| good	27.71 \| good	26.814 \| good	0.921 \| good	9.098 \| good	0.205 \| good
2026-03-10T22:00:00.000Z	52 \| moderate	9.533 \| good	32.677 \| good	28.039 \| good	0.879 \| good	9.886 \| good	0.205 \| good
2026-03-10T23:00:00.000Z	52 \| moderate	10.402 \| good	34.789 \| good	28.486 \| good	0.717 \| good	10.351 \| good	0.205 \| good
2026-03-11T00:00:00.000Z	54 \| moderate	11.374 \| good	36.984 \| good	27.212 \| good	0.983 \| good	8.882 \| good	0.154 \| good
2026-03-11T01:00:00.000Z	54 \| moderate	11.097 \| good	37.041 \| good	23.854 \| good	0.57 \| good	7.144 \| good	0.154 \| good
2026-03-11T02:00:00.000Z	52 \| moderate	9.772 \| good	30.329 \| good	22.59 \| good	0.632 \| good	8.505 \| good	0.157 \| good
2026-03-11T03:00:00.000Z	49 \| good	9.38 \| good	28.253 \| good	20.649 \| good	0.494 \| good	8.016 \| good	0.154 \| good
2026-03-11T04:00:00.000Z	49 \| good	9.445 \| good	29.273 \| good	19.777 \| good	0.6 \| good	8.005 \| good	0.104 \| good
2026-03-11T05:00:00.000Z	56 \| moderate	11.753 \| good	37.696 \| good	16.332 \| good	0.892 \| good	5.84 \| good	0.104 \| good
2026-03-11T06:00:00.000Z	56 \| moderate	11.538 \| good	35.928 \| good	17.443 \| good	0.989 \| good	6.113 \| good	0.104 \| good
2026-03-11T07:00:00.000Z	56 \| moderate	11.69 \| good	38.99 \| good	17.354 \| good	0.899 \| good	3.803 \| good	0.111 \| good
2026-03-11T08:00:00.000Z	54 \| moderate	10.892 \| good	37.278 \| good	14.776 \| good	0.667 \| good	8.375 \| good	0.105 \| good
2026-03-11T09:00:00.000Z	54 \| moderate	11.328 \| good	37.896 \| good	17.321 \| good	0.666 \| good	10.744 \| good	0.153 \| good
2026-03-11T10:00:00.000Z	56 \| moderate	12.405 \| fine	43.328 \| good	16.961 \| good	0.638 \| good	8.483 \| good	0.155 \| good
2026-03-11T11:00:00.000Z	58 \| moderate	12.737 \| fine	43.361 \| good	17.336 \| good	0.593 \| good	6.488 \| good	0.155 \| good
2026-03-11T12:00:00.000Z	54 \| moderate	11.258 \| good	36.643 \| good	18.019 \| good	0.558 \| good	6.555 \| good	0.106 \| good
2026-03-11T13:00:00.000Z	56 \| moderate	11.539 \| good	39.596 \| good	16.868 \| good	0.539 \| good	4.026 \| good	0.116 \| good
2026-03-11T14:00:00.000Z	49 \| good	9.374 \| good	32.603 \| good	18.326 \| good	0.674 \| good	9.462 \| good	0.154 \| good
2026-03-11T15:00:00.000Z	49 \| good	8.549 \| good	31.234 \| good	20.647 \| good	0.837 \| good	7.287 \| good	0.155 \| good
2026-03-11T16:00:00.000Z	44 \| good	8.006 \| good	30.604 \| good	22.262 \| good	1.369 \| good	7.739 \| good	0.103 \| good
2026-03-11T17:00:00.000Z	44 \| good	8.006 \| good	30.604 \| good	22.262 \| good	1.369 \| good	7.739 \| good	0.103 \| good
2026-03-11T18:00:00.000Z	27 \| good	3.739 \| good	16.607 \| good	28.723 \| good	0.633 \| good	1.268 \| good	0.1 \| good
2026-03-11T19:00:00.000Z	27 \| good	4.636 \| good	20.502 \| good	25.105 \| good	0.589 \| good	1.397 \| good	0.099 \| good
2026-03-11T20:00:00.000Z	33 \| good	5.663 \| good	24.471 \| good	27.184 \| good	0.544 \| good	1.527 \| good	0.099 \| good
2026-03-11T21:00:00.000Z	27 \| good	5.165 \| good	22.183 \| good	25.228 \| good	0.5 \| good	1.656 \| good	0.098 \| good
2026-03-11T22:00:00.000Z	44 \| good	7.648 \| good	33.741 \| good	22.212 \| good	0.576 \| good	2.488 \| good	0.125 \| good
2026-03-11T23:00:00.000Z	49 \| good	8.741 \| good	38.546 \| good	22.716 \| good	0.652 \| good	3.32 \| good	0.151 \| good
2026-03-12T00:00:00.000Z	38 \| good	7.35 \| good	32.124 \| good	23.383 \| good	0.727 \| good	4.152 \| good	0.178 \| good
2026-03-12T01:00:00.000Z	38 \| good	6.635 \| good	29.806 \| good	19.597 \| good	0.796 \| good	4.087 \| good	0.177 \| good
2026-03-12T02:00:00.000Z	27 \| good	4.745 \| good	20.863 \| good	23.824 \| good	0.864 \| good	4.023 \| good	0.177 \| good
2026-03-12T03:00:00.000Z	27 \| good	5.384 \| good	22.96 \| good	26.575 \| good	0.932 \| good	3.958 \| good	0.176 \| good
2026-03-12T04:00:00.000Z	26 \| good	4.175 \| good	18.545 \| good	28.423 \| good	0.884 \| good	3.385 \| good	0.17 \| good
2026-03-12T05:00:00.000Z	26 \| good	3.902 \| good	16.937 \| good	27.766 \| good	0.836 \| good	2.812 \| good	0.163 \| good
2026-03-12T06:00:00.000Z	27 \| good	2.741 \| good	10.941 \| good	28.844 \| good	0.788 \| good	2.24 \| good	0.156 \| good
2026-03-12T07:00:00.000Z	25 \| good	3.563 \| good	15.411 \| good	26.895 \| good	0.771 \| good	2.006 \| good	0.151 \| good
2026-03-12T08:00:00.000Z	26 \| good	2.828 \| good	11.398 \| good	28.38 \| good	0.754 \| good	1.772 \| good	0.146 \| good
2026-03-12T09:00:00.000Z	24 \| good	3.312 \| good	14.318 \| good	26.435 \| good	0.737 \| good	1.538 \| good	0.141 \| good
2026-03-12T10:00:00.000Z	28 \| good	1.791 \| good	7.635 \| good	29.998 \| good	0.83 \| good	1.828 \| good	0.144 \| good
2026-03-12T11:00:00.000Z	27 \| good	2.096 \| good	8.79 \| good	29.088 \| good	0.923 \| good	2.119 \| good	0.146 \| good
2026-03-12T12:00:00.000Z	25 \| good	2.469 \| good	10.019 \| good	27.459 \| good	1.017 \| good	2.409 \| good	0.149 \| good
2026-03-12T13:00:00.000Z	26 \| good	0.575 \| good	2.094 \| good	27.79 \| good	1.059 \| good	2.436 \| good	0.151 \| good
2026-03-12T14:00:00.000Z	27 \| good	0.735 \| good	2.853 \| good	28.906 \| good	1.101 \| good	2.464 \| good	0.152 \| good
2026-03-12T15:00:00.000Z	31 \| good	1.291 \| good	5.034 \| good	32.793 \| good	1.143 \| good	2.491 \| good	0.153 \| good
2026-03-12T16:00:00.000Z	32 \| good	1.178 \| good	4.843 \| good	35.072 \| good	1.031 \| good	2.11 \| good	0.147 \| good
2026-03-12T17:00:00.000Z	35 \| good	2.589 \| good	10.222 \| good	37.777 \| good	0.918 \| good	1.728 \| good	0.14 \| good
2026-03-12T18:00:00.000Z	35 \| good	3.064 \| good	12.404 \| good	37.732 \| good	0.805 \| good	1.347 \| good	0.134 \| good
2026-03-12T19:00:00.000Z	35 \| good	2.492 \| good	10 \| good	38.314 \| good	0.776 \| good	1.214 \| good	0.132 \| good
2026-03-12T20:00:00.000Z	39 \| good	3.624 \| good	15.985 \| good	41.55 \| good	0.746 \| good	1.081 \| good	0.13 \| good
2026-03-12T21:00:00.000Z	38 \| good	4.024 \| good	17.868 \| good	40.987 \| good	0.717 \| good	0.948 \| good	0.128 \| good
2026-03-12T22:00:00.000Z	37 \| good	5.065 \| good	21.859 \| good	40.193 \| good	0.881 \| good	2.991 \| good	0.144 \| good
2026-03-12T23:00:00.000Z	32 \| good	5.147 \| good	22.321 \| good	35.081 \| good	1.045 \| good	5.033 \| good	0.16 \| good
2026-03-13T00:00:00.000Z	38 \| good	7.187 \| good	31.768 \| good	22.853 \| good	1.209 \| good	7.076 \| good	0.176 \| good
2026-03-13T01:00:00.000Z	44 \| good	7.607 \| good	33.22 \| good	15.108 \| good	1.411 \| good	7.178 \| good	0.177 \| good
2026-03-13T02:00:00.000Z	33 \| good	5.667 \| good	24.531 \| good	18.03 \| good	1.613 \| good	7.281 \| good	0.179 \| good
2026-03-13T03:00:00.000Z	27 \| good	5.281 \| good	23.031 \| good	18.98 \| good	1.814 \| good	7.384 \| good	0.181 \| good
2026-03-13T04:00:00.000Z	27 \| good	4.782 \| good	20.689 \| good	18.577 \| good	1.659 \| good	5.934 \| good	0.169 \| good
2026-03-13T05:00:00.000Z	22 \| good	4.158 \| good	17.898 \| good	20.411 \| good	1.503 \| good	4.484 \| good	0.157 \| good
2026-03-13T06:00:00.000Z	27 \| good	4.779 \| good	20.884 \| good	24.65 \| good	1.347 \| good	3.034 \| good	0.146 \| good
2026-03-13T07:00:00.000Z	33 \| good	6.051 \| good	26.375 \| good	25.113 \| good	1.173 \| good	2.512 \| good	0.141 \| good
2026-03-13T08:00:00.000Z	33 \| good	5.623 \| good	24.302 \| good	22.506 \| good	0.998 \| good	1.99 \| good	0.137 \| good
2026-03-13T09:00:00.000Z	33 \| good	5.581 \| good	24.026 \| good	22.724 \| good	0.824 \| good	1.468 \| good	0.133 \| good
2026-03-13T10:00:00.000Z	27 \| good	4.676 \| good	20.501 \| good	25.735 \| good	0.867 \| good	1.508 \| good	0.133 \| good
2026-03-13T11:00:00.000Z	24 \| good	3.699 \| good	15.951 \| good	25.606 \| good	0.91 \| good	1.548 \| good	0.133 \| good
2026-03-13T12:00:00.000Z	23 \| good	2.783 \| good	11.696 \| good	25.303 \| good	0.953 \| good	1.589 \| good	0.133 \| good
2026-03-13T13:00:00.000Z	25 \| good	2.472 \| good	9.979 \| good	27.097 \| good	1.031 \| good	1.705 \| good	0.135 \| good
2026-03-13T14:00:00.000Z	31 \| good	2.251 \| good	9.034 \| good	32.938 \| good	1.11 \| good	1.822 \| good	0.137 \| good
2026-03-13T15:00:00.000Z	31 \| good	2.814 \| good	11.86 \| good	32.666 \| good	1.188 \| good	1.939 \| good	0.138 \| good
2026-03-13T16:00:00.000Z	31 \| good	3.389 \| good	15.034 \| good	33.164 \| good	1.302 \| good	1.692 \| good	0.137 \| good
2026-03-13T17:00:00.000Z	31 \| good	4.013 \| good	17.796 \| good	32.791 \| good	1.416 \| good	1.444 \| good	0.135 \| good

Louisville

Empower business decisions with accurate air quality data

Louisville, Kentucky air quality map: Real-time AQI near you

0.10ppm

How accurate is Kentucky, USA air quality data?

Air quality measurements for Kentucky, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.

Source: Ambee Data Sources

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Check live rankings of places in the USA affected by air pollution.

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Frequently asked questions

How frequently is the air quality data for Louisville, Kentucky updated?

Air quality data for Louisville, Kentucky is updated on an hourly basis.

When did Louisville, Kentucky experience the worst air quality in the last 24 hours?

The worst air quality in Louisville, Kentucky was recorded at 11:00:00 on 2026-03-11.

When did Louisville, Kentucky have its best air quality in the last 24 hours?

The best air quality in Louisville, Kentucky was recorded at 05:00:00 on 2026-03-10.

What is the real-time air quality index for Louisville, Kentucky?

The real-time air quality index in Louisville, Kentucky is 44, currently categorized as Good.

Which pollutant is found most often in Louisville, Kentucky?

The most common pollutant in Louisville, Kentucky is PM2.5.

What can I do if the air quality in Louisville, Kentucky is poor?

If the air quality in Louisville, Kentucky is poor, limit outdoor activities and use a mask to safeguard your health.

What are the current PM_2.5 levels in Louisville, Kentucky?

The measured PM_2.5 levels in Louisville, Kentucky at present are 8.006 μg/m³.

What are the current PM₁₀ levels at Louisville, Kentucky?

The current PM₁₀ levels in Louisville, Kentucky are 30.604 μg/m³.

What are the current carbon monoxide (CO) levels at Louisville, Kentucky?

The current carbon monoxide (CO) level in Louisville, Kentucky is 0.103 ppm.

What are the current sulfur dioxide (SO₂) levels at Louisville, Kentucky?

The current sulfur dioxide (SO₂) levels in Louisville, Kentucky are 1.369 ppb.

What are the current ozone (O₃) levels at Louisville, Kentucky?

The current ozone (O₃) levels at Louisville, Kentucky is 22.262 ppm.

What are the current nitrogen dioxide (NO₂) levels at Louisville, Kentucky?

The current nitrogen dioxide (NO₂) levels at Louisville, Kentucky is 7.739 ppb.

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