What are the current PM10 levels at Louisville, Kentucky?

The current PM10 levels in Louisville, Kentucky are 22.351 μg/m3.

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

The current sulfur dioxide (SO2) levels in Louisville, Kentucky are 0.389 ppb.

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

The current ozone (O3) levels at Louisville, Kentucky is 18.647 ppm.

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

The current nitrogen dioxide (NO2) levels at Louisville, Kentucky is 33.274 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 5.126 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)

5.13 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

22.35 μg/m³

155

255

425

605+

Ozone (O₃)

18.65 ppb

201

201+

Sulfur Dioxide (SO₂)

0.39 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

33.27 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.55 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
2026-01-21T04:00:00.000Z	27 \| good	5.43 \| good	12.904 \| good	17.647 \| good	0.401 \| good	15.611 \| good	0.21 \| good
2026-01-21T05:00:00.000Z	27 \| good	5.457 \| good	12.807 \| good	19.375 \| good	0.469 \| good	15.636 \| good	0.21 \| good
2026-01-21T06:00:00.000Z	33 \| good	5.54 \| good	11.871 \| good	20.113 \| good	0.394 \| good	15.324 \| good	0.2 \| good
2026-01-21T07:00:00.000Z	33 \| good	5.57 \| good	11.916 \| good	20.295 \| good	0.395 \| good	14.723 \| good	0.201 \| good
2026-01-21T08:00:00.000Z	33 \| good	5.535 \| good	11.874 \| good	16.963 \| good	0.496 \| good	19.443 \| good	0.2 \| good
2026-01-21T09:00:00.000Z	33 \| good	5.53 \| good	11.762 \| good	19.705 \| good	0.524 \| good	16.088 \| good	0.2 \| good
2026-01-21T10:00:00.000Z	33 \| good	5.643 \| good	12.03 \| good	17.157 \| good	0.528 \| good	18.115 \| good	0.2 \| good
2026-01-21T11:00:00.000Z	33 \| good	5.645 \| good	12.11 \| good	18.311 \| good	0.529 \| good	14.243 \| good	0.2 \| good
2026-01-21T12:00:00.000Z	33 \| good	5.633 \| good	12.891 \| good	20.981 \| good	0.603 \| good	9.84 \| good	0.202 \| good
2026-01-21T13:00:00.000Z	33 \| good	5.633 \| good	12.942 \| good	21.062 \| good	0.875 \| good	8.922 \| good	0.204 \| good
2026-01-21T14:00:00.000Z	33 \| good	5.645 \| good	11.252 \| good	23.167 \| good	0.44 \| good	9.837 \| good	0.202 \| good
2026-01-21T15:00:00.000Z	33 \| good	6.034 \| good	12.588 \| good	24.077 \| good	0.524 \| good	11.516 \| good	0.201 \| good
2026-01-21T16:00:00.000Z	33 \| good	6.258 \| good	12.463 \| good	27.931 \| good	0.773 \| good	10.317 \| good	0.2 \| good
2026-01-21T17:00:00.000Z	38 \| good	6.678 \| good	13.708 \| good	27.924 \| good	0.811 \| good	10.835 \| good	0.2 \| good
2026-01-21T18:00:00.000Z	44 \| good	7.823 \| good	14.767 \| good	28.248 \| good	0.928 \| good	9.184 \| good	0.2 \| good
2026-01-21T19:00:00.000Z	49 \| good	9.3 \| good	15.844 \| good	28.272 \| good	0.495 \| good	10.89 \| good	0.2 \| good
2026-01-21T20:00:00.000Z	54 \| moderate	10.631 \| good	16.099 \| good	27.402 \| good	0.667 \| good	10.97 \| good	0.21 \| good
2026-01-21T21:00:00.000Z	54 \| moderate	10.824 \| good	16.392 \| good	29.127 \| good	0.432 \| good	8.532 \| good	0.21 \| good
2026-01-21T22:00:00.000Z	58 \| moderate	12.656 \| fine	18.045 \| good	29.133 \| good	0.479 \| good	8.716 \| good	0.21 \| good
2026-01-21T23:00:00.000Z	60 \| moderate	13.525 \| fine	18.968 \| good	30.394 \| good	0.489 \| good	8.631 \| good	0.21 \| good
2026-01-22T00:00:00.000Z	62 \| moderate	14.593 \| fine	20.825 \| good	25.493 \| good	0.943 \| good	12.6 \| good	0.2 \| good
2026-01-22T01:00:00.000Z	64 \| moderate	15.75 \| fine	22.567 \| good	25.471 \| good	0.43 \| good	13.205 \| good	0.2 \| good
2026-01-22T02:00:00.000Z	66 \| moderate	17.08 \| fine	24.791 \| good	24.509 \| good	0.147 \| good	12.153 \| good	0.2 \| good
2026-01-22T03:00:00.000Z	66 \| moderate	17.15 \| fine	24.685 \| good	25.678 \| good	0.154 \| good	12.01 \| good	0.2 \| good
2026-01-22T04:00:00.000Z	66 \| moderate	16.5 \| fine	24.467 \| good	24.562 \| good	0.588 \| good	11.948 \| good	0.191 \| good
2026-01-22T05:00:00.000Z	64 \| moderate	16.127 \| fine	23.751 \| good	27.438 \| good	4.629 \| good	4.786 \| good	0.19 \| good
2026-01-22T06:00:00.000Z	64 \| moderate	16.152 \| fine	24.622 \| good	26.592 \| good	0.54 \| good	5.185 \| good	0.19 \| good
2026-01-22T07:00:00.000Z	64 \| moderate	16.247 \| fine	23.605 \| good	28.923 \| good	0.483 \| good	6.193 \| good	0.19 \| good
2026-01-22T08:00:00.000Z	66 \| moderate	16.502 \| fine	24.382 \| good	25.479 \| good	0.565 \| good	9.586 \| good	0.19 \| good
2026-01-22T09:00:00.000Z	66 \| moderate	16.543 \| fine	23.822 \| good	28.091 \| good	0.512 \| good	4.703 \| good	0.101 \| good
2026-01-22T10:00:00.000Z	64 \| moderate	16.134 \| fine	24.645 \| good	25.194 \| good	0.533 \| good	4.404 \| good	0.101 \| good
2026-01-22T11:00:00.000Z	56 \| moderate	12.388 \| fine	26.154 \| good	27.001 \| good	0.494 \| good	4.098 \| good	0.101 \| good
2026-01-22T12:00:00.000Z	49 \| good	8.847 \| good	24.267 \| good	27.112 \| good	0.404 \| good	4.548 \| good	0.101 \| good
2026-01-22T13:00:00.000Z	49 \| good	8.636 \| good	23.422 \| good	27.081 \| good	0.416 \| good	4.456 \| good	0.102 \| good
2026-01-22T14:00:00.000Z	33 \| good	5.584 \| good	18.505 \| good	27.863 \| good	0.626 \| good	6.509 \| good	0.2 \| good
2026-01-22T15:00:00.000Z	28 \| good	4.968 \| good	15.457 \| good	29.795 \| good	0.498 \| good	4.218 \| good	0.191 \| good
2026-01-22T16:00:00.000Z	29 \| good	4.374 \| good	13.346 \| good	30.803 \| good	0.485 \| good	3.559 \| good	0.28 \| good
2026-01-22T17:00:00.000Z	30 \| good	3.935 \| good	13.082 \| good	31.806 \| good	0.483 \| good	3.402 \| good	0.19 \| good
2026-01-22T18:00:00.000Z	31 \| good	3.525 \| good	12.023 \| good	32.91 \| good	0.538 \| good	3.369 \| good	0.19 \| good
2026-01-22T19:00:00.000Z	31 \| good	3.403 \| good	11.071 \| good	33.886 \| good	0.405 \| good	3.507 \| good	0.101 \| good
2026-01-22T20:00:00.000Z	31 \| good	3.214 \| good	10.201 \| good	34.065 \| good	0.367 \| good	3.921 \| good	0.19 \| good
2026-01-22T21:00:00.000Z	32 \| good	3.112 \| good	9.995 \| good	34.925 \| good	0.395 \| good	3.855 \| good	0.19 \| good
2026-01-22T22:00:00.000Z	31 \| good	3.023 \| good	9.997 \| good	34.213 \| good	0.434 \| good	4.064 \| good	0.111 \| good
2026-01-22T23:00:00.000Z	31 \| good	3.016 \| good	9.251 \| good	33.904 \| good	0.811 \| good	6.439 \| good	0.2 \| good
2026-01-23T00:00:00.000Z	27 \| good	3.298 \| good	10.983 \| good	29.06 \| good	0.616 \| good	14.543 \| good	0.558 \| good
2026-01-23T01:00:00.000Z	23 \| good	3.724 \| good	12.224 \| good	24.975 \| good	0.668 \| good	20.811 \| good	0.39 \| good
2026-01-23T02:00:00.000Z	32 \| good	4.737 \| good	15.964 \| good	15.414 \| good	0.555 \| good	33.974 \| good	0.589 \| good
2026-01-23T03:00:00.000Z	31 \| good	5.126 \| good	22.351 \| good	18.647 \| good	0.389 \| good	33.274 \| good	0.545 \| good
2026-01-23T04:00:00.000Z	49 \| good	9.358 \| good	41.593 \| good	10.47 \| good	4.757 \| good	11.782 \| good	0.243 \| good
2026-01-23T05:00:00.000Z	52 \| moderate	9.707 \| good	43.307 \| good	11.307 \| good	5.646 \| good	10.575 \| good	0.234 \| good
2026-01-23T06:00:00.000Z	49 \| good	8.915 \| good	39.671 \| good	11.345 \| good	6.534 \| good	9.369 \| good	0.224 \| good
2026-01-23T07:00:00.000Z	44 \| good	8.306 \| good	36.524 \| good	12.403 \| good	6.901 \| good	7.949 \| good	0.213 \| good
2026-01-23T08:00:00.000Z	49 \| good	8.553 \| good	37.269 \| good	14.752 \| good	7.267 \| good	6.53 \| good	0.202 \| good
2026-01-23T09:00:00.000Z	44 \| good	8.06 \| good	35.423 \| good	20.247 \| good	7.634 \| good	5.11 \| good	0.191 \| good
2026-01-23T10:00:00.000Z	33 \| good	5.975 \| good	26.076 \| good	23.058 \| good	5.578 \| good	4.177 \| good	0.185 \| good
2026-01-23T11:00:00.000Z	24 \| good	4.288 \| good	18.604 \| good	25.733 \| good	3.523 \| good	3.244 \| good	0.18 \| good
2026-01-23T12:00:00.000Z	25 \| good	3.962 \| good	17.163 \| good	26.539 \| good	1.468 \| good	2.31 \| good	0.174 \| good
2026-01-23T13:00:00.000Z	25 \| good	4.477 \| good	19.439 \| good	27.107 \| good	1.186 \| good	2.153 \| good	0.165 \| good
2026-01-23T14:00:00.000Z	29 \| good	4.147 \| good	18.091 \| good	31.117 \| good	0.905 \| good	1.995 \| good	0.155 \| good
2026-01-23T15:00:00.000Z	29 \| good	3.396 \| good	15.08 \| good	31.422 \| good	0.623 \| good	1.837 \| good	0.145 \| good
2026-01-23T16:00:00.000Z	30 \| good	3.061 \| good	12.931 \| good	32.066 \| good	0.663 \| good	1.765 \| good	0.145 \| good
2026-01-23T17:00:00.000Z	31 \| good	2.795 \| good	11.444 \| good	33.079 \| good	0.702 \| good	1.692 \| good	0.144 \| good
2026-01-23T18:00:00.000Z	29 \| good	3.033 \| good	12.74 \| good	31.324 \| good	0.742 \| good	1.62 \| good	0.143 \| good
2026-01-23T19:00:00.000Z	28 \| good	4.016 \| good	17.736 \| good	30.196 \| good	0.82 \| good	1.834 \| good	0.145 \| good
2026-01-23T20:00:00.000Z	29 \| good	4.764 \| good	20.837 \| good	31.245 \| good	0.898 \| good	2.048 \| good	0.146 \| good
2026-01-23T21:00:00.000Z	28 \| good	5.358 \| good	22.953 \| good	29.924 \| good	0.975 \| good	2.262 \| good	0.147 \| good
2026-01-23T22:00:00.000Z	28 \| good	3.846 \| good	16.809 \| good	30.045 \| good	1.122 \| good	2.809 \| good	0.15 \| good
2026-01-23T23:00:00.000Z	28 \| good	3.095 \| good	12.887 \| good	29.827 \| good	1.27 \| good	3.355 \| good	0.152 \| good
2026-01-24T00:00:00.000Z	26 \| good	0.848 \| good	3.244 \| good	27.96 \| good	1.417 \| good	3.902 \| good	0.154 \| good
2026-01-24T01:00:00.000Z	27 \| good	0.819 \| good	3.116 \| good	29.131 \| good	1.611 \| good	3.796 \| good	0.154 \| good
2026-01-24T02:00:00.000Z	28 \| good	1.153 \| good	4.476 \| good	29.54 \| good	1.805 \| good	3.69 \| good	0.153 \| good
2026-01-24T03:00:00.000Z	26 \| good	1.054 \| good	4.355 \| good	28.285 \| good	1.999 \| good	3.585 \| good	0.153 \| good
2026-01-24T04:00:00.000Z	24 \| good	1.858 \| good	8 \| good	26.454 \| good	2.145 \| good	3.586 \| good	0.154 \| good
2026-01-24T05:00:00.000Z	22 \| good	2.336 \| good	9.958 \| good	24.134 \| good	2.291 \| good	3.588 \| good	0.154 \| good
2026-01-24T06:00:00.000Z	21 \| good	3.136 \| good	13.618 \| good	23.154 \| good	2.437 \| good	3.59 \| good	0.155 \| good
2026-01-24T07:00:00.000Z	22 \| good	3.646 \| good	15.925 \| good	23.528 \| good	2.584 \| good	3.428 \| good	0.154 \| good
2026-01-24T08:00:00.000Z	22 \| good	3.907 \| good	17.158 \| good	23.533 \| good	2.731 \| good	3.266 \| good	0.153 \| good
2026-01-24T09:00:00.000Z	23 \| good	3.517 \| good	15.062 \| good	24.902 \| good	2.877 \| good	3.105 \| good	0.152 \| good
2026-01-24T10:00:00.000Z	24 \| good	2.184 \| good	9.164 \| good	26.362 \| good	2.813 \| good	2.92 \| good	0.15 \| good
2026-01-24T11:00:00.000Z	24 \| good	1.777 \| good	7.366 \| good	26.117 \| good	2.748 \| good	2.735 \| good	0.148 \| good
2026-01-24T12:00:00.000Z	23 \| good	1.422 \| good	5.736 \| good	25.451 \| good	2.683 \| good	2.55 \| good	0.145 \| good
2026-01-24T13:00:00.000Z	23 \| good	2.497 \| good	10.116 \| good	25.181 \| good	2.675 \| good	2.827 \| good	0.147 \| good
2026-01-24T14:00:00.000Z	23 \| good	3.057 \| good	12.232 \| good	25.173 \| good	2.666 \| good	3.104 \| good	0.148 \| good
2026-01-24T15:00:00.000Z	22 \| good	3.354 \| good	14.809 \| good	23.949 \| good	2.658 \| good	3.38 \| good	0.15 \| good
2026-01-24T16:00:00.000Z	22 \| good	3.34 \| good	14.809 \| good	23.803 \| good	2.876 \| good	3.486 \| good	0.15 \| good
2026-01-24T17:00:00.000Z	23 \| good	3.744 \| good	16.074 \| good	24.933 \| good	3.095 \| good	3.592 \| good	0.151 \| good
2026-01-24T18:00:00.000Z	27 \| good	4.567 \| good	19.598 \| good	24.232 \| good	3.313 \| good	3.698 \| good	0.151 \| good
2026-01-24T19:00:00.000Z	33 \| good	5.503 \| good	23.587 \| good	24.126 \| good	3.468 \| good	4.007 \| good	0.153 \| good
2026-01-24T20:00:00.000Z	27 \| good	5.242 \| good	22.726 \| good	25.195 \| good	3.623 \| good	4.316 \| good	0.154 \| good
2026-01-24T21:00:00.000Z	44 \| good	7.543 \| good	33.122 \| good	24.422 \| good	3.778 \| good	4.625 \| good	0.156 \| good
2026-01-24T22:00:00.000Z	44 \| good	8.286 \| good	36.402 \| good	25.524 \| good	3.598 \| good	5.176 \| good	0.159 \| good
2026-01-24T23:00:00.000Z	44 \| good	8.026 \| good	34.989 \| good	25.984 \| good	3.419 \| good	5.727 \| good	0.163 \| good
2026-01-25T00:00:00.000Z	25 \| good	3.636 \| good	3.831 \| good	26.63 \| good	3.257 \| good	6.29 \| good	0.167 \| good
2026-01-25T01:00:00.000Z	33 \| good	5.788 \| good	24.968 \| good	26.782 \| good	3.061 \| good	6.241 \| good	0.168 \| good
2026-01-25T02:00:00.000Z	38 \| good	7.238 \| good	31.958 \| good	23.593 \| good	2.882 \| good	6.203 \| good	0.17 \| good
2026-01-25T03:00:00.000Z	44 \| good	7.764 \| good	33.893 \| good	21.036 \| good	2.703 \| good	6.165 \| good	0.171 \| good

Louisville

Empower business decisions with accurate air quality data

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

0.56ppm

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

Air quality levels in US

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 09:00:00 on 2026-01-22.

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

The best air quality in Louisville, Kentucky was recorded at 01:00:00 on 2026-01-23.

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

The real-time air quality index in Louisville, Kentucky is 31, currently categorized as Good.

Which pollutant is found most often in Louisville, Kentucky?

The most common pollutant in Louisville, Kentucky is NO2.

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 5.126 μg/m³.

What are the current PM₁₀ levels at Louisville, Kentucky?

The current PM₁₀ levels in Louisville, Kentucky are 22.351 μg/m³.

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

The current carbon monoxide (CO) level in Louisville, Kentucky is 0.545 ppm.

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

The current sulfur dioxide (SO₂) levels in Louisville, Kentucky are 0.389 ppb.

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

The current ozone (O₃) levels at Louisville, Kentucky is 18.647 ppm.

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

The current nitrogen dioxide (NO₂) levels at Louisville, Kentucky is 33.274 ppb.

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