What is the current concentration of PM10 in Timonium, Maryland?

The current PM10 concentration at Timonium, Maryland is 11.299 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Timonium, Maryland?

The current sulfur dioxide (SO2) concentration at Timonium, Maryland is 0.163 ppb.

What is the current concentration of ozone (O3) in Timonium, Maryland?

The current ozone (O3) concentration at Timonium, Maryland is 17.7 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Timonium, Maryland?

The current nitrogen dioxide (NO2) concentration at Timonium, Maryland is 18.646 ppb.

Timonium, Maryland live air quality index now

Q: What is the current concentration of PM2.5 in Timonium, Maryland?

The current PM2.5 concentration at Timonium, Maryland is 2.507 μg/m3.

Stay updated with real-time air quality in Timonium, Maryland 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

Timonium, Maryland

Last updated: ... (Local time)

Major air pollutants in Timonium, Maryland

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

6.55 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

30.05 μg/m³

155

255

425

605+

Ozone (O₃)

4.76 ppb

201

201+

Sulfur Dioxide (SO₂)

0.30 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

11.56 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.39 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Timonium, Maryland

Get Live Pollen Counts

Timonium, Maryland

Scroll To Air Quality Map

Track live Timonium, Maryland air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-05T08:00:00.000Z	8 \| good	1.359 \| good	5.679 \| good	8.932 \| good	0.299 \| good	7.328 \| good	0.259 \| good
2026-10-05T09:00:00.000Z	11 \| good	2.021 \| good	8.461 \| good	9.531 \| good	0.318 \| good	5.948 \| good	0.225 \| good
2026-10-05T10:00:00.000Z	16 \| good	2.86 \| good	11.773 \| good	12.628 \| good	0.387 \| good	7.097 \| good	0.194 \| good
2026-10-05T11:00:00.000Z	22 \| good	3.675 \| good	16.114 \| good	8.49 \| good	0.297 \| good	7.931 \| good	0.194 \| good
2026-10-05T12:00:00.000Z	22 \| good	4.284 \| good	18.801 \| good	5.577 \| good	0.369 \| good	7.753 \| good	0.209 \| good
2026-10-05T13:00:00.000Z	22 \| good	4.286 \| good	18.917 \| good	5.663 \| good	0.282 \| good	7.765 \| good	0.209 \| good
2026-10-05T14:00:00.000Z	33 \| good	5.579 \| good	24.014 \| good	10.176 \| good	0.36 \| good	5.64 \| good	0.209 \| good
2026-10-05T15:00:00.000Z	27 \| good	5.199 \| good	22.186 \| good	17.365 \| good	0.328 \| good	4.97 \| good	0.225 \| good
2026-10-05T16:00:00.000Z	33 \| good	5.974 \| good	26.918 \| good	23.437 \| good	0.319 \| good	5.112 \| good	0.225 \| good
2026-10-05T17:00:00.000Z	33 \| good	6.35 \| good	28.563 \| good	27.17 \| good	0.365 \| good	3.681 \| good	0.163 \| good
2026-10-05T18:00:00.000Z	38 \| good	7.144 \| good	31.369 \| good	30.906 \| good	0.394 \| good	3.076 \| good	0.148 \| good
2026-10-05T19:00:00.000Z	38 \| good	6.693 \| good	29.662 \| good	33.38 \| good	0.52 \| good	2.933 \| good	0.148 \| good
2026-10-05T20:00:00.000Z	31 \| good	5.39 \| good	23.049 \| good	34.326 \| good	0.214 \| good	3.186 \| good	0.148 \| good
2026-10-05T21:00:00.000Z	31 \| good	3.658 \| good	16.302 \| good	33.03 \| good	0.209 \| good	2.964 \| good	0.148 \| good
2026-10-05T22:00:00.000Z	31 \| good	2.527 \| good	11.022 \| good	33.335 \| good	0.189 \| good	3.158 \| good	0.148 \| good
2026-10-05T23:00:00.000Z	31 \| good	4.809 \| good	20.772 \| good	33.473 \| good	0.169 \| good	6.041 \| good	0.148 \| good
2026-10-06T00:00:00.000Z	33 \| good	5.512 \| good	24.795 \| good	33.144 \| good	0.234 \| good	7.696 \| good	0.172 \| good
2026-10-06T01:00:00.000Z	33 \| good	5.985 \| good	26.28 \| good	28.877 \| good	0.242 \| good	9.181 \| good	0.2 \| good
2026-10-06T02:00:00.000Z	49 \| good	9.062 \| good	40.989 \| good	25.465 \| good	0.595 \| good	9.638 \| good	0.177 \| good
2026-10-06T03:00:00.000Z	20 \| good	2.276 \| good	9.264 \| good	22.457 \| good	0.448 \| good	4.105 \| good	0.149 \| good
2026-10-06T04:00:00.000Z	52 \| moderate	9.98 \| good	42.73 \| good	21.667 \| good	0.222 \| good	8.479 \| good	0.177 \| good
2026-10-06T05:00:00.000Z	49 \| good	8.844 \| good	38.446 \| good	21.18 \| good	0.369 \| good	7.185 \| good	0.177 \| good
2026-10-06T06:00:00.000Z	38 \| good	6.82 \| good	29.367 \| good	20.39 \| good	0.369 \| good	8.78 \| good	0.177 \| good
2026-10-06T07:00:00.000Z	38 \| good	6.777 \| good	29.645 \| good	20.6 \| good	0.566 \| good	9.138 \| good	0.177 \| good
2026-10-06T08:00:00.000Z	27 \| good	5.179 \| good	22.657 \| good	17.978 \| good	0.592 \| good	7.857 \| good	0.132 \| good
2026-10-06T09:00:00.000Z	44 \| good	7.826 \| good	35.385 \| good	18.434 \| good	0.58 \| good	10.487 \| good	0.132 \| good
2026-10-06T10:00:00.000Z	49 \| good	8.747 \| good	38.602 \| good	17.657 \| good	0.215 \| good	13.439 \| good	0.16 \| good
2026-10-06T11:00:00.000Z	38 \| good	7.222 \| good	30.613 \| good	15.854 \| good	0.49 \| good	16.832 \| good	0.193 \| good
2026-10-06T12:00:00.000Z	33 \| good	6.438 \| good	28.403 \| good	12.911 \| good	0.241 \| good	14.188 \| good	0.217 \| good
2026-10-06T13:00:00.000Z	33 \| good	6.398 \| good	28.254 \| good	12.848 \| good	0.192 \| good	14.158 \| good	0.25 \| good
2026-10-06T14:00:00.000Z	22 \| good	4.147 \| good	17.892 \| good	23.652 \| good	0.495 \| good	5.398 \| good	0.227 \| good
2026-10-06T15:00:00.000Z	22 \| good	2.926 \| good	11.735 \| good	24.322 \| good	0.351 \| good	3.851 \| good	0.193 \| good
2026-10-06T16:00:00.000Z	23 \| good	2.987 \| good	12.107 \| good	24.993 \| good	0.372 \| good	4.035 \| good	0.132 \| good
2026-10-06T17:00:00.000Z	25 \| good	2.625 \| good	11.155 \| good	26.791 \| good	0.183 \| good	3.502 \| good	0.177 \| good
2026-10-06T18:00:00.000Z	29 \| good	2.113 \| good	8.958 \| good	31.006 \| good	0.24 \| good	3.565 \| good	0.132 \| good
2026-10-06T19:00:00.000Z	30 \| good	2.908 \| good	11.529 \| good	32.187 \| good	0.164 \| good	3.541 \| good	0.148 \| good
2026-10-06T20:00:00.000Z	31 \| good	3.182 \| good	14.174 \| good	33.694 \| good	0.204 \| good	3.581 \| good	0.177 \| good
2026-10-06T21:00:00.000Z	32 \| good	2.46 \| good	9.821 \| good	35.045 \| good	0.157 \| good	3.991 \| good	0.148 \| good
2026-10-06T22:00:00.000Z	33 \| good	2.669 \| good	11.447 \| good	36.205 \| good	0.176 \| good	4.864 \| good	0.148 \| good
2026-10-06T23:00:00.000Z	32 \| good	3.855 \| good	16.627 \| good	34.776 \| good	0.253 \| good	6.862 \| good	0.132 \| good
2026-10-07T00:00:00.000Z	28 \| good	2.651 \| good	10.743 \| good	29.905 \| good	0.247 \| good	11.299 \| good	0.149 \| good
2026-10-07T01:00:00.000Z	20 \| good	2.638 \| good	10.836 \| good	22.42 \| good	0.408 \| good	15.713 \| good	0.266 \| good
2026-10-07T02:00:00.000Z	18 \| good	2.507 \| good	11.299 \| good	17.7 \| good	0.163 \| good	18.646 \| good	0.393 \| good
2026-10-07T03:00:00.000Z	33 \| good	5.817 \| good	25.233 \| good	16.628 \| good	0.985 \| good	27.902 \| good	0.413 \| good
2026-10-07T04:00:00.000Z	27 \| good	5.34 \| good	23.328 \| good	10.352 \| good	0.149 \| good	17.325 \| good	0.389 \| good
2026-10-07T05:00:00.000Z	38 \| good	7.084 \| good	31.153 \| good	7.683 \| good	0.23 \| good	14.724 \| good	0.411 \| good
2026-10-07T06:00:00.000Z	38 \| good	6.552 \| good	30.05 \| good	4.757 \| good	0.303 \| good	11.558 \| good	0.389 \| good
2026-10-07T07:00:00.000Z	38 \| good	6.552 \| good	30.05 \| good	4.757 \| good	0.303 \| good	11.558 \| good	0.389 \| good
2026-10-07T04:00:00.000Z	27 \| good	5.02 \| good	21.707 \| good	8.551 \| good	1.024 \| good	25.818 \| good	0.363 \| good
2026-10-07T05:00:00.000Z	33 \| good	6.254 \| good	27.631 \| good	9.058 \| good	1.044 \| good	23.83 \| good	0.337 \| good
2026-10-07T06:00:00.000Z	38 \| good	6.758 \| good	30.129 \| good	8.257 \| good	1.062 \| good	21.108 \| good	0.314 \| good
2026-10-07T07:00:00.000Z	38 \| good	6.919 \| good	30.956 \| good	5.831 \| good	1.073 \| good	18.709 \| good	0.296 \| good
2026-10-07T08:00:00.000Z	38 \| good	6.605 \| good	29.415 \| good	4.714 \| good	1.075 \| good	16.775 \| good	0.281 \| good
2026-10-07T09:00:00.000Z	38 \| good	7.221 \| good	31.873 \| good	6.166 \| good	1.068 \| good	15.074 \| good	0.268 \| good
2026-10-07T10:00:00.000Z	38 \| good	7.012 \| good	31.346 \| good	7.872 \| good	1.058 \| good	13.651 \| good	0.256 \| good
2026-10-07T11:00:00.000Z	38 \| good	7.024 \| good	31.142 \| good	8.343 \| good	1.048 \| good	12.836 \| good	0.247 \| good
2026-10-07T12:00:00.000Z	38 \| good	7.126 \| good	31.743 \| good	14.877 \| good	1.018 \| good	11.705 \| good	0.25 \| good
2026-10-07T13:00:00.000Z	33 \| good	5.649 \| good	24.238 \| good	22.211 \| good	1.006 \| good	8.861 \| good	0.246 \| good
2026-10-07T14:00:00.000Z	27 \| good	4.622 \| good	20.258 \| good	28.281 \| good	1.051 \| good	6 \| good	0.212 \| good
2026-10-07T15:00:00.000Z	38 \| good	6.905 \| good	30.73 \| good	31.698 \| good	0.981 \| good	3.409 \| good	0.183 \| good
2026-10-07T16:00:00.000Z	44 \| good	8.132 \| good	35.915 \| good	35.945 \| good	0.883 \| good	2.319 \| good	0.174 \| good
2026-10-07T17:00:00.000Z	38 \| good	7.387 \| good	32.249 \| good	40.774 \| good	0.836 \| good	1.739 \| good	0.171 \| good
2026-10-07T18:00:00.000Z	44 \| good	8.129 \| good	35.691 \| good	46.645 \| good	0.807 \| good	1.422 \| good	0.17 \| good
2026-10-07T19:00:00.000Z	49 \| good	8.874 \| good	38.772 \| good	49.285 \| good	0.788 \| good	1.318 \| good	0.17 \| good
2026-10-07T20:00:00.000Z	47 \| good	7.042 \| good	31.106 \| good	50.725 \| good	0.776 \| good	1.373 \| good	0.17 \| good
2026-10-07T21:00:00.000Z	44 \| good	7.355 \| good	32.258 \| good	46.868 \| good	0.769 \| good	1.7 \| good	0.171 \| good
2026-10-07T22:00:00.000Z	49 \| good	8.897 \| good	39.684 \| good	39.259 \| good	0.754 \| good	3.382 \| good	0.185 \| good
2026-10-07T23:00:00.000Z	52 \| moderate	10.492 \| good	46.404 \| good	33.78 \| good	0.764 \| good	6.237 \| good	0.207 \| good
2026-10-08T00:00:00.000Z	44 \| good	8.432 \| good	36.802 \| good	26.399 \| good	0.786 \| good	7.659 \| good	0.217 \| good
2026-10-08T01:00:00.000Z	38 \| good	6.897 \| good	30.159 \| good	24.67 \| good	0.81 \| good	8.114 \| good	0.218 \| good
2026-10-08T02:00:00.000Z	33 \| good	6.097 \| good	27.069 \| good	22.306 \| good	0.818 \| good	7.956 \| good	0.216 \| good
2026-10-08T03:00:00.000Z	33 \| good	6.244 \| good	27.658 \| good	19.547 \| good	0.815 \| good	7.764 \| good	0.214 \| good
2026-10-08T04:00:00.000Z	27 \| good	4.881 \| good	21.315 \| good	19.29 \| good	0.804 \| good	7.437 \| good	0.213 \| good
2026-10-08T05:00:00.000Z	27 \| good	4.586 \| good	19.723 \| good	17.119 \| good	0.785 \| good	6.755 \| good	0.212 \| good
2026-10-08T06:00:00.000Z	22 \| good	4.092 \| good	17.694 \| good	16.68 \| good	0.767 \| good	6.226 \| good	0.209 \| good
2026-10-08T07:00:00.000Z	16 \| good	3.354 \| good	14.611 \| good	14.133 \| good	0.75 \| good	5.881 \| good	0.207 \| good
2026-10-08T08:00:00.000Z	16 \| good	2.804 \| good	11.656 \| good	16.087 \| good	0.736 \| good	5.681 \| good	0.205 \| good
2026-10-08T09:00:00.000Z	19 \| good	3.143 \| good	12.956 \| good	19.75 \| good	0.724 \| good	5.549 \| good	0.203 \| good
2026-10-08T10:00:00.000Z	27 \| good	5.063 \| good	21.727 \| good	21.596 \| good	0.716 \| good	5.513 \| good	0.201 \| good
2026-10-08T11:00:00.000Z	33 \| good	6.266 \| good	27.606 \| good	18.515 \| good	0.714 \| good	5.843 \| good	0.202 \| good
2026-10-08T12:00:00.000Z	44 \| good	7.97 \| good	35.133 \| good	21.451 \| good	0.729 \| good	6.582 \| good	0.213 \| good
2026-10-08T13:00:00.000Z	49 \| good	9.318 \| good	41.513 \| good	27.802 \| good	0.815 \| good	6.296 \| good	0.228 \| good
2026-10-08T14:00:00.000Z	44 \| good	7.64 \| good	33.811 \| good	33.239 \| good	1.008 \| good	4.811 \| good	0.214 \| good
2026-10-08T15:00:00.000Z	44 \| good	8.018 \| good	35.133 \| good	39.805 \| good	1.102 \| good	2.741 \| good	0.192 \| good
2026-10-08T16:00:00.000Z	49 \| good	8.858 \| good	38.792 \| good	44.381 \| good	0.956 \| good	1.785 \| good	0.175 \| good
2026-10-08T17:00:00.000Z	49 \| good	9.047 \| good	40.347 \| good	46.49 \| good	0.773 \| good	1.159 \| good	0.158 \| good
2026-10-08T18:00:00.000Z	44 \| good	8.259 \| good	36.536 \| good	46.506 \| good	0.618 \| good	0.944 \| good	0.148 \| good
2026-10-08T19:00:00.000Z	44 \| good	7.88 \| good	34.598 \| good	44.163 \| good	0.55 \| good	0.932 \| good	0.144 \| good
2026-10-08T20:00:00.000Z	43 \| good	6.969 \| good	31.247 \| good	45.79 \| good	0.545 \| good	1.015 \| good	0.142 \| good
2026-10-08T21:00:00.000Z	41 \| good	6.165 \| good	26.959 \| good	44.477 \| good	0.569 \| good	1.42 \| good	0.145 \| good
2026-10-08T22:00:00.000Z	35 \| good	5.363 \| good	23.456 \| good	38.178 \| good	0.608 \| good	3.024 \| good	0.158 \| good
2026-10-08T23:00:00.000Z	31 \| good	4.884 \| good	21.428 \| good	34.058 \| good	0.644 \| good	6.541 \| good	0.188 \| good
2026-10-09T00:00:00.000Z	24 \| good	3.299 \| good	14.534 \| good	25.527 \| good	0.672 \| good	8.523 \| good	0.202 \| good
2026-10-09T01:00:00.000Z	23 \| good	2.374 \| good	9.6 \| good	24.801 \| good	0.689 \| good	8.89 \| good	0.201 \| good
2026-10-09T02:00:00.000Z	21 \| good	1.151 \| good	4.869 \| good	23.051 \| good	0.688 \| good	8.444 \| good	0.195 \| good
2026-10-09T03:00:00.000Z	21 \| good	0.935 \| good	3.875 \| good	23.235 \| good	0.67 \| good	8.291 \| good	0.191 \| good

Timonium

Get reliable air quality data to drive your business

Timonium, Maryland air quality map: Track AQI near you

0.39ppm

How accurate is Maryland, USA air quality data?

Air quality data and pollutant measurements for Maryland, 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

Air quality levels in US

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

View Polluted Cities

Check live rankings of places in the USA with the cleanest air.

View Clean Cities

Frequently asked questions

How often is the air quality data for Timonium, Maryland updated?

The air quality for Timonium, Maryland is updated every hour.

When was the worst air quality at Timonium, Maryland in the last 24 hrs?

The worst air quality in Timonium, Maryland in the last 24 hours was observed at 04:00:00 on 2026-10-06.

When was the best air quality at Timonium, Maryland in the last 24 hrs?

In the last 24 hrs, the best air quality in Timonium, Maryland was observed at 02:00:00 on 2026-10-07.

What is the current air quality in Timonium, Maryland?

The current air quality in Timonium, Maryland is 18, categorized as Good based on real-time data.

What pollutant is the most common in Timonium, Maryland?

The most common pollutant in Timonium, Maryland is NO2.

What should I do if the air quality in Timonium, Maryland is poor?

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

What is the current concentration of PM_2.5 in Timonium, Maryland?

The current PM_2.5 concentration at Timonium, Maryland is 2.507 μg/m³.

What is the current concentration of PM₁₀ in Timonium, Maryland?

The current PM₁₀ concentration at Timonium, Maryland is 11.299 μg/m³.

What is the current concentration of carbon monoxide (CO) in Timonium, Maryland?

The current carbon monoxide (CO) concentration at Timonium, Maryland is 0.393 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Timonium, Maryland?

The current sulfur dioxide (SO₂) concentration at Timonium, Maryland is 0.163 ppb.

What is the current concentration of ozone (O₃) in Timonium, Maryland?

The current ozone (O₃) concentration at Timonium, Maryland is 17.7 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Timonium, Maryland?

The current nitrogen dioxide (NO₂) concentration at Timonium, Maryland is 18.646 ppb.

Certified

APIs

Refund Policy

Historical Climate Data

Terms & Conditions

Refund Policy

Terms & Conditions

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-10-05T08:00:00.000Z	8 \| good	1.359 \| good	5.679 \| good	8.932 \| good	0.299 \| good	7.328 \| good	0.259 \| good
2026-10-05T09:00:00.000Z	11 \| good	2.021 \| good	8.461 \| good	9.531 \| good	0.318 \| good	5.948 \| good	0.225 \| good
2026-10-05T10:00:00.000Z	16 \| good	2.86 \| good	11.773 \| good	12.628 \| good	0.387 \| good	7.097 \| good	0.194 \| good
2026-10-05T11:00:00.000Z	22 \| good	3.675 \| good	16.114 \| good	8.49 \| good	0.297 \| good	7.931 \| good	0.194 \| good
2026-10-05T12:00:00.000Z	22 \| good	4.284 \| good	18.801 \| good	5.577 \| good	0.369 \| good	7.753 \| good	0.209 \| good
2026-10-05T13:00:00.000Z	22 \| good	4.286 \| good	18.917 \| good	5.663 \| good	0.282 \| good	7.765 \| good	0.209 \| good
2026-10-05T14:00:00.000Z	33 \| good	5.579 \| good	24.014 \| good	10.176 \| good	0.36 \| good	5.64 \| good	0.209 \| good
2026-10-05T15:00:00.000Z	27 \| good	5.199 \| good	22.186 \| good	17.365 \| good	0.328 \| good	4.97 \| good	0.225 \| good
2026-10-05T16:00:00.000Z	33 \| good	5.974 \| good	26.918 \| good	23.437 \| good	0.319 \| good	5.112 \| good	0.225 \| good
2026-10-05T17:00:00.000Z	33 \| good	6.35 \| good	28.563 \| good	27.17 \| good	0.365 \| good	3.681 \| good	0.163 \| good
2026-10-05T18:00:00.000Z	38 \| good	7.144 \| good	31.369 \| good	30.906 \| good	0.394 \| good	3.076 \| good	0.148 \| good
2026-10-05T19:00:00.000Z	38 \| good	6.693 \| good	29.662 \| good	33.38 \| good	0.52 \| good	2.933 \| good	0.148 \| good
2026-10-05T20:00:00.000Z	31 \| good	5.39 \| good	23.049 \| good	34.326 \| good	0.214 \| good	3.186 \| good	0.148 \| good
2026-10-05T21:00:00.000Z	31 \| good	3.658 \| good	16.302 \| good	33.03 \| good	0.209 \| good	2.964 \| good	0.148 \| good
2026-10-05T22:00:00.000Z	31 \| good	2.527 \| good	11.022 \| good	33.335 \| good	0.189 \| good	3.158 \| good	0.148 \| good
2026-10-05T23:00:00.000Z	31 \| good	4.809 \| good	20.772 \| good	33.473 \| good	0.169 \| good	6.041 \| good	0.148 \| good
2026-10-06T00:00:00.000Z	33 \| good	5.512 \| good	24.795 \| good	33.144 \| good	0.234 \| good	7.696 \| good	0.172 \| good
2026-10-06T01:00:00.000Z	33 \| good	5.985 \| good	26.28 \| good	28.877 \| good	0.242 \| good	9.181 \| good	0.2 \| good
2026-10-06T02:00:00.000Z	49 \| good	9.062 \| good	40.989 \| good	25.465 \| good	0.595 \| good	9.638 \| good	0.177 \| good
2026-10-06T03:00:00.000Z	20 \| good	2.276 \| good	9.264 \| good	22.457 \| good	0.448 \| good	4.105 \| good	0.149 \| good
2026-10-06T04:00:00.000Z	52 \| moderate	9.98 \| good	42.73 \| good	21.667 \| good	0.222 \| good	8.479 \| good	0.177 \| good
2026-10-06T05:00:00.000Z	49 \| good	8.844 \| good	38.446 \| good	21.18 \| good	0.369 \| good	7.185 \| good	0.177 \| good
2026-10-06T06:00:00.000Z	38 \| good	6.82 \| good	29.367 \| good	20.39 \| good	0.369 \| good	8.78 \| good	0.177 \| good
2026-10-06T07:00:00.000Z	38 \| good	6.777 \| good	29.645 \| good	20.6 \| good	0.566 \| good	9.138 \| good	0.177 \| good
2026-10-06T08:00:00.000Z	27 \| good	5.179 \| good	22.657 \| good	17.978 \| good	0.592 \| good	7.857 \| good	0.132 \| good
2026-10-06T09:00:00.000Z	44 \| good	7.826 \| good	35.385 \| good	18.434 \| good	0.58 \| good	10.487 \| good	0.132 \| good
2026-10-06T10:00:00.000Z	49 \| good	8.747 \| good	38.602 \| good	17.657 \| good	0.215 \| good	13.439 \| good	0.16 \| good
2026-10-06T11:00:00.000Z	38 \| good	7.222 \| good	30.613 \| good	15.854 \| good	0.49 \| good	16.832 \| good	0.193 \| good
2026-10-06T12:00:00.000Z	33 \| good	6.438 \| good	28.403 \| good	12.911 \| good	0.241 \| good	14.188 \| good	0.217 \| good
2026-10-06T13:00:00.000Z	33 \| good	6.398 \| good	28.254 \| good	12.848 \| good	0.192 \| good	14.158 \| good	0.25 \| good
2026-10-06T14:00:00.000Z	22 \| good	4.147 \| good	17.892 \| good	23.652 \| good	0.495 \| good	5.398 \| good	0.227 \| good
2026-10-06T15:00:00.000Z	22 \| good	2.926 \| good	11.735 \| good	24.322 \| good	0.351 \| good	3.851 \| good	0.193 \| good
2026-10-06T16:00:00.000Z	23 \| good	2.987 \| good	12.107 \| good	24.993 \| good	0.372 \| good	4.035 \| good	0.132 \| good
2026-10-06T17:00:00.000Z	25 \| good	2.625 \| good	11.155 \| good	26.791 \| good	0.183 \| good	3.502 \| good	0.177 \| good
2026-10-06T18:00:00.000Z	29 \| good	2.113 \| good	8.958 \| good	31.006 \| good	0.24 \| good	3.565 \| good	0.132 \| good
2026-10-06T19:00:00.000Z	30 \| good	2.908 \| good	11.529 \| good	32.187 \| good	0.164 \| good	3.541 \| good	0.148 \| good
2026-10-06T20:00:00.000Z	31 \| good	3.182 \| good	14.174 \| good	33.694 \| good	0.204 \| good	3.581 \| good	0.177 \| good
2026-10-06T21:00:00.000Z	32 \| good	2.46 \| good	9.821 \| good	35.045 \| good	0.157 \| good	3.991 \| good	0.148 \| good
2026-10-06T22:00:00.000Z	33 \| good	2.669 \| good	11.447 \| good	36.205 \| good	0.176 \| good	4.864 \| good	0.148 \| good
2026-10-06T23:00:00.000Z	32 \| good	3.855 \| good	16.627 \| good	34.776 \| good	0.253 \| good	6.862 \| good	0.132 \| good
2026-10-07T00:00:00.000Z	28 \| good	2.651 \| good	10.743 \| good	29.905 \| good	0.247 \| good	11.299 \| good	0.149 \| good
2026-10-07T01:00:00.000Z	20 \| good	2.638 \| good	10.836 \| good	22.42 \| good	0.408 \| good	15.713 \| good	0.266 \| good
2026-10-07T02:00:00.000Z	18 \| good	2.507 \| good	11.299 \| good	17.7 \| good	0.163 \| good	18.646 \| good	0.393 \| good
2026-10-07T03:00:00.000Z	33 \| good	5.817 \| good	25.233 \| good	16.628 \| good	0.985 \| good	27.902 \| good	0.413 \| good
2026-10-07T04:00:00.000Z	27 \| good	5.34 \| good	23.328 \| good	10.352 \| good	0.149 \| good	17.325 \| good	0.389 \| good
2026-10-07T05:00:00.000Z	38 \| good	7.084 \| good	31.153 \| good	7.683 \| good	0.23 \| good	14.724 \| good	0.411 \| good
2026-10-07T06:00:00.000Z	38 \| good	6.552 \| good	30.05 \| good	4.757 \| good	0.303 \| good	11.558 \| good	0.389 \| good
2026-10-07T07:00:00.000Z	38 \| good	6.552 \| good	30.05 \| good	4.757 \| good	0.303 \| good	11.558 \| good	0.389 \| good
2026-10-07T04:00:00.000Z	27 \| good	5.02 \| good	21.707 \| good	8.551 \| good	1.024 \| good	25.818 \| good	0.363 \| good
2026-10-07T05:00:00.000Z	33 \| good	6.254 \| good	27.631 \| good	9.058 \| good	1.044 \| good	23.83 \| good	0.337 \| good
2026-10-07T06:00:00.000Z	38 \| good	6.758 \| good	30.129 \| good	8.257 \| good	1.062 \| good	21.108 \| good	0.314 \| good
2026-10-07T07:00:00.000Z	38 \| good	6.919 \| good	30.956 \| good	5.831 \| good	1.073 \| good	18.709 \| good	0.296 \| good
2026-10-07T08:00:00.000Z	38 \| good	6.605 \| good	29.415 \| good	4.714 \| good	1.075 \| good	16.775 \| good	0.281 \| good
2026-10-07T09:00:00.000Z	38 \| good	7.221 \| good	31.873 \| good	6.166 \| good	1.068 \| good	15.074 \| good	0.268 \| good
2026-10-07T10:00:00.000Z	38 \| good	7.012 \| good	31.346 \| good	7.872 \| good	1.058 \| good	13.651 \| good	0.256 \| good
2026-10-07T11:00:00.000Z	38 \| good	7.024 \| good	31.142 \| good	8.343 \| good	1.048 \| good	12.836 \| good	0.247 \| good
2026-10-07T12:00:00.000Z	38 \| good	7.126 \| good	31.743 \| good	14.877 \| good	1.018 \| good	11.705 \| good	0.25 \| good
2026-10-07T13:00:00.000Z	33 \| good	5.649 \| good	24.238 \| good	22.211 \| good	1.006 \| good	8.861 \| good	0.246 \| good
2026-10-07T14:00:00.000Z	27 \| good	4.622 \| good	20.258 \| good	28.281 \| good	1.051 \| good	6 \| good	0.212 \| good
2026-10-07T15:00:00.000Z	38 \| good	6.905 \| good	30.73 \| good	31.698 \| good	0.981 \| good	3.409 \| good	0.183 \| good
2026-10-07T16:00:00.000Z	44 \| good	8.132 \| good	35.915 \| good	35.945 \| good	0.883 \| good	2.319 \| good	0.174 \| good
2026-10-07T17:00:00.000Z	38 \| good	7.387 \| good	32.249 \| good	40.774 \| good	0.836 \| good	1.739 \| good	0.171 \| good
2026-10-07T18:00:00.000Z	44 \| good	8.129 \| good	35.691 \| good	46.645 \| good	0.807 \| good	1.422 \| good	0.17 \| good
2026-10-07T19:00:00.000Z	49 \| good	8.874 \| good	38.772 \| good	49.285 \| good	0.788 \| good	1.318 \| good	0.17 \| good
2026-10-07T20:00:00.000Z	47 \| good	7.042 \| good	31.106 \| good	50.725 \| good	0.776 \| good	1.373 \| good	0.17 \| good
2026-10-07T21:00:00.000Z	44 \| good	7.355 \| good	32.258 \| good	46.868 \| good	0.769 \| good	1.7 \| good	0.171 \| good
2026-10-07T22:00:00.000Z	49 \| good	8.897 \| good	39.684 \| good	39.259 \| good	0.754 \| good	3.382 \| good	0.185 \| good
2026-10-07T23:00:00.000Z	52 \| moderate	10.492 \| good	46.404 \| good	33.78 \| good	0.764 \| good	6.237 \| good	0.207 \| good
2026-10-08T00:00:00.000Z	44 \| good	8.432 \| good	36.802 \| good	26.399 \| good	0.786 \| good	7.659 \| good	0.217 \| good
2026-10-08T01:00:00.000Z	38 \| good	6.897 \| good	30.159 \| good	24.67 \| good	0.81 \| good	8.114 \| good	0.218 \| good
2026-10-08T02:00:00.000Z	33 \| good	6.097 \| good	27.069 \| good	22.306 \| good	0.818 \| good	7.956 \| good	0.216 \| good
2026-10-08T03:00:00.000Z	33 \| good	6.244 \| good	27.658 \| good	19.547 \| good	0.815 \| good	7.764 \| good	0.214 \| good
2026-10-08T04:00:00.000Z	27 \| good	4.881 \| good	21.315 \| good	19.29 \| good	0.804 \| good	7.437 \| good	0.213 \| good
2026-10-08T05:00:00.000Z	27 \| good	4.586 \| good	19.723 \| good	17.119 \| good	0.785 \| good	6.755 \| good	0.212 \| good
2026-10-08T06:00:00.000Z	22 \| good	4.092 \| good	17.694 \| good	16.68 \| good	0.767 \| good	6.226 \| good	0.209 \| good
2026-10-08T07:00:00.000Z	16 \| good	3.354 \| good	14.611 \| good	14.133 \| good	0.75 \| good	5.881 \| good	0.207 \| good
2026-10-08T08:00:00.000Z	16 \| good	2.804 \| good	11.656 \| good	16.087 \| good	0.736 \| good	5.681 \| good	0.205 \| good
2026-10-08T09:00:00.000Z	19 \| good	3.143 \| good	12.956 \| good	19.75 \| good	0.724 \| good	5.549 \| good	0.203 \| good
2026-10-08T10:00:00.000Z	27 \| good	5.063 \| good	21.727 \| good	21.596 \| good	0.716 \| good	5.513 \| good	0.201 \| good
2026-10-08T11:00:00.000Z	33 \| good	6.266 \| good	27.606 \| good	18.515 \| good	0.714 \| good	5.843 \| good	0.202 \| good
2026-10-08T12:00:00.000Z	44 \| good	7.97 \| good	35.133 \| good	21.451 \| good	0.729 \| good	6.582 \| good	0.213 \| good
2026-10-08T13:00:00.000Z	49 \| good	9.318 \| good	41.513 \| good	27.802 \| good	0.815 \| good	6.296 \| good	0.228 \| good
2026-10-08T14:00:00.000Z	44 \| good	7.64 \| good	33.811 \| good	33.239 \| good	1.008 \| good	4.811 \| good	0.214 \| good
2026-10-08T15:00:00.000Z	44 \| good	8.018 \| good	35.133 \| good	39.805 \| good	1.102 \| good	2.741 \| good	0.192 \| good
2026-10-08T16:00:00.000Z	49 \| good	8.858 \| good	38.792 \| good	44.381 \| good	0.956 \| good	1.785 \| good	0.175 \| good
2026-10-08T17:00:00.000Z	49 \| good	9.047 \| good	40.347 \| good	46.49 \| good	0.773 \| good	1.159 \| good	0.158 \| good
2026-10-08T18:00:00.000Z	44 \| good	8.259 \| good	36.536 \| good	46.506 \| good	0.618 \| good	0.944 \| good	0.148 \| good
2026-10-08T19:00:00.000Z	44 \| good	7.88 \| good	34.598 \| good	44.163 \| good	0.55 \| good	0.932 \| good	0.144 \| good
2026-10-08T20:00:00.000Z	43 \| good	6.969 \| good	31.247 \| good	45.79 \| good	0.545 \| good	1.015 \| good	0.142 \| good
2026-10-08T21:00:00.000Z	41 \| good	6.165 \| good	26.959 \| good	44.477 \| good	0.569 \| good	1.42 \| good	0.145 \| good
2026-10-08T22:00:00.000Z	35 \| good	5.363 \| good	23.456 \| good	38.178 \| good	0.608 \| good	3.024 \| good	0.158 \| good
2026-10-08T23:00:00.000Z	31 \| good	4.884 \| good	21.428 \| good	34.058 \| good	0.644 \| good	6.541 \| good	0.188 \| good
2026-10-09T00:00:00.000Z	24 \| good	3.299 \| good	14.534 \| good	25.527 \| good	0.672 \| good	8.523 \| good	0.202 \| good
2026-10-09T01:00:00.000Z	23 \| good	2.374 \| good	9.6 \| good	24.801 \| good	0.689 \| good	8.89 \| good	0.201 \| good
2026-10-09T02:00:00.000Z	21 \| good	1.151 \| good	4.869 \| good	23.051 \| good	0.688 \| good	8.444 \| good	0.195 \| good
2026-10-09T03:00:00.000Z	21 \| good	0.935 \| good	3.875 \| good	23.235 \| good	0.67 \| good	8.291 \| good	0.191 \| good

Timonium, Maryland live air quality index now

Major air pollutants in Timonium, Maryland

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Timonium, Maryland air quality forecast and history

Get reliable air quality data to drive your business

Timonium, Maryland air quality map: Track AQI near you

Air quality in nearby cities

Mays Chapel, Maryland

Towson, Maryland

Cockeysville, Maryland

Carney, Maryland

Parkville, Maryland

Pikesville, Maryland

How accurate is Maryland, USA air quality data?

Air quality levels in US

Frequently asked questions

How often is the air quality data for Timonium, Maryland updated?

When was the worst air quality at Timonium, Maryland in the last 24 hrs?

When was the best air quality at Timonium, Maryland in the last 24 hrs?

What is the current air quality in Timonium, Maryland?

What pollutant is the most common in Timonium, Maryland?

What should I do if the air quality in Timonium, Maryland is poor?

What is the current concentration of PM2.5 in Timonium, Maryland?

What is the current concentration of PM10 in Timonium, Maryland?

What is the current concentration of carbon monoxide (CO) in Timonium, Maryland?

What is the current concentration of sulfur dioxide (SO2) in Timonium, Maryland?

What is the current concentration of ozone (O3) in Timonium, Maryland?

What is the current concentration of nitrogen dioxide (NO2) in Timonium, Maryland?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What is the current concentration of PM_2.5 in Timonium, Maryland?

What is the current concentration of PM₁₀ in Timonium, Maryland?

What is the current concentration of sulfur dioxide (SO₂) in Timonium, Maryland?

What is the current concentration of ozone (O₃) in Timonium, Maryland?

What is the current concentration of nitrogen dioxide (NO₂) in Timonium, Maryland?