What is the current concentration of PM10 in Bristol, Connecticut?

The current PM10 concentration at Bristol, Connecticut is 14.536 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Bristol, Connecticut?

The current sulfur dioxide (SO2) concentration at Bristol, Connecticut is 0.271 ppb.

What is the current concentration of ozone (O3) in Bristol, Connecticut?

The current ozone (O3) concentration at Bristol, Connecticut is 46.108 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Bristol, Connecticut?

The current nitrogen dioxide (NO2) concentration at Bristol, Connecticut is 4.691 ppb.

Bristol, Connecticut live air quality index now

Q: What is the current concentration of PM2.5 in Bristol, Connecticut?

The current PM2.5 concentration at Bristol, Connecticut is 5.633 μg/m3.

Stay updated with real-time air quality in Bristol, Connecticut 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

Bristol, Connecticut

Last updated: ... (Local time)

Major air pollutants in Bristol, Connecticut

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

5.63 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

14.54 μg/m³

155

255

425

605+

Ozone (O₃)

46.11 ppb

201

201+

Sulfur Dioxide (SO₂)

0.27 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.69 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.21 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

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Bristol, Connecticut

Scroll To Air Quality Map

Track live Bristol, Connecticut air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-03-27T23:00:00.000Z	38 \| good	2.624 \| good	7.705 \| good	40.842 \| good	0.19 \| good	3.587 \| good	0.177 \| good
2026-03-28T00:00:00.000Z	36 \| good	2.809 \| good	10.918 \| good	39 \| good	0.129 \| good	5.493 \| good	0.184 \| good
2026-03-28T01:00:00.000Z	35 \| good	3.165 \| good	12.608 \| good	37.987 \| good	0.176 \| good	7.692 \| good	0.177 \| good
2026-03-28T02:00:00.000Z	32 \| good	3.411 \| good	9.374 \| good	35.444 \| good	0.158 \| good	8.389 \| good	0.184 \| good
2026-03-28T03:00:00.000Z	23 \| good	4.242 \| good	17.613 \| good	25.457 \| good	0.143 \| good	9.679 \| good	0.226 \| good
2026-03-28T04:00:00.000Z	28 \| good	4.681 \| good	13.099 \| good	30.259 \| good	0.165 \| good	10.372 \| good	0.218 \| good
2026-03-28T05:00:00.000Z	30 \| good	5.363 \| good	14.232 \| good	31.615 \| good	0.138 \| good	12.712 \| good	0.218 \| good
2026-03-28T06:00:00.000Z	32 \| good	5.266 \| good	11.126 \| good	35.076 \| good	0.184 \| good	12.803 \| good	0.206 \| good
2026-03-28T07:00:00.000Z	33 \| good	4.623 \| good	12.027 \| good	36.173 \| good	0.177 \| good	8.648 \| good	0.179 \| good
2026-03-28T08:00:00.000Z	29 \| good	4.346 \| good	12.677 \| good	30.774 \| good	0.171 \| good	5.824 \| good	0.177 \| good
2026-03-28T09:00:00.000Z	30 \| good	3.983 \| good	11.391 \| good	31.845 \| good	0.171 \| good	4.478 \| good	0.177 \| good
2026-03-28T10:00:00.000Z	32 \| good	4.264 \| good	16.757 \| good	35.015 \| good	0.136 \| good	5.172 \| good	0.142 \| good
2026-03-28T11:00:00.000Z	33 \| good	4.121 \| good	10.912 \| good	36.373 \| good	0.164 \| good	4.873 \| good	0.115 \| good
2026-03-28T12:00:00.000Z	34 \| good	4.202 \| good	18.14 \| good	37.427 \| good	0.179 \| good	4.287 \| good	0.165 \| good
2026-03-28T13:00:00.000Z	34 \| good	4.209 \| good	9.497 \| good	37.243 \| good	0.209 \| good	3.207 \| good	0.206 \| good
2026-03-28T14:00:00.000Z	35 \| good	4.246 \| good	9.216 \| good	37.594 \| good	0.179 \| good	2.788 \| good	0.149 \| good
2026-03-28T15:00:00.000Z	35 \| good	4.122 \| good	14.107 \| good	37.69 \| good	0.143 \| good	2.1 \| good	0.142 \| good
2026-03-28T16:00:00.000Z	36 \| good	4.086 \| good	16.364 \| good	39.188 \| good	0.179 \| good	1.885 \| good	0.115 \| good
2026-03-28T17:00:00.000Z	38 \| good	4.126 \| good	10.116 \| good	41.02 \| good	0.209 \| good	1.889 \| good	0.115 \| good
2026-03-28T18:00:00.000Z	39 \| good	4.075 \| good	10.126 \| good	42.412 \| good	0.177 \| good	1.732 \| good	0.15 \| good
2026-03-28T19:00:00.000Z	37 \| good	4.038 \| good	10.014 \| good	39.855 \| good	0.177 \| good	1.981 \| good	0.15 \| good
2026-03-28T20:00:00.000Z	39 \| good	3.769 \| good	11.526 \| good	42.383 \| good	0.166 \| good	2.086 \| good	0.15 \| good
2026-03-28T21:00:00.000Z	37 \| good	3.506 \| good	14.478 \| good	39.711 \| good	0.123 \| good	2.246 \| good	0.177 \| good
2026-03-28T22:00:00.000Z	39 \| good	3.182 \| good	12.431 \| good	42.266 \| good	0.125 \| good	2.247 \| good	0.142 \| good
2026-03-28T23:00:00.000Z	39 \| good	3.055 \| good	11.731 \| good	41.994 \| good	0.134 \| good	2.615 \| good	0.15 \| good
2026-03-29T00:00:00.000Z	38 \| good	3.181 \| good	11.272 \| good	41.282 \| good	0.221 \| good	3.487 \| good	0.15 \| good
2026-03-29T01:00:00.000Z	40 \| good	3.362 \| good	14.543 \| good	42.657 \| good	0.243 \| good	5.394 \| good	0.184 \| good
2026-03-29T02:00:00.000Z	35 \| good	3.861 \| good	23.26 \| good	38.44 \| good	0.171 \| good	6.836 \| good	0.191 \| good
2026-03-29T03:00:00.000Z	27 \| good	4.451 \| good	19.077 \| good	28.515 \| good	0.668 \| good	4.708 \| good	0.218 \| good
2026-03-29T04:00:00.000Z	32 \| good	3.989 \| good	13.838 \| good	35.411 \| good	0.148 \| good	11.036 \| good	0.211 \| good
2026-03-29T05:00:00.000Z	32 \| good	4.483 \| good	13.837 \| good	35.353 \| good	0.231 \| good	12.396 \| good	0.184 \| good
2026-03-29T06:00:00.000Z	31 \| good	4.786 \| good	12.638 \| good	33.796 \| good	0.231 \| good	12.961 \| good	0.184 \| good
2026-03-29T07:00:00.000Z	30 \| good	4.726 \| good	9.869 \| good	31.511 \| good	0.385 \| good	16.846 \| good	0.239 \| good
2026-03-29T08:00:00.000Z	33 \| good	5.796 \| good	11.07 \| good	25.606 \| good	0.254 \| good	27.107 \| good	0.273 \| good
2026-03-29T09:00:00.000Z	33 \| good	5.859 \| good	16.149 \| good	27.258 \| good	0.396 \| good	30.162 \| good	0.3 \| good
2026-03-29T10:00:00.000Z	27 \| good	5.458 \| good	12.728 \| good	26.278 \| good	0.357 \| good	24.805 \| good	0.265 \| good
2026-03-29T11:00:00.000Z	33 \| good	6.306 \| good	10.182 \| good	28.276 \| good	0.434 \| good	19.641 \| good	0.3 \| good
2026-03-29T12:00:00.000Z	27 \| good	5.035 \| good	13.065 \| good	25.101 \| good	0.415 \| good	16.413 \| good	0.315 \| good
2026-03-29T13:00:00.000Z	28 \| good	5.021 \| good	12.377 \| good	29.69 \| good	0.373 \| good	16.834 \| good	0.318 \| good
2026-03-29T14:00:00.000Z	29 \| good	5.028 \| good	11.487 \| good	30.974 \| good	0.372 \| good	8.879 \| good	0.192 \| good
2026-03-29T15:00:00.000Z	30 \| good	4.919 \| good	11.733 \| good	32.096 \| good	0.36 \| good	6.052 \| good	0.185 \| good
2026-03-29T16:00:00.000Z	36 \| good	4.495 \| good	12.936 \| good	38.983 \| good	0.235 \| good	4.477 \| good	0.196 \| good
2026-03-29T17:00:00.000Z	36 \| good	4.404 \| good	16.771 \| good	39.163 \| good	0.219 \| good	3.703 \| good	0.269 \| good
2026-03-29T18:00:00.000Z	38 \| good	4.725 \| good	10.955 \| good	40.883 \| good	0.24 \| good	5.634 \| good	0.208 \| good
2026-03-29T19:00:00.000Z	41 \| good	4.769 \| good	11.422 \| good	44.373 \| good	0.245 \| good	4.957 \| good	0.208 \| good
2026-03-29T20:00:00.000Z	42 \| good	5.108 \| good	15.043 \| good	44.779 \| good	0.282 \| good	4.666 \| good	0.208 \| good
2026-03-29T21:00:00.000Z	43 \| good	5.633 \| good	14.536 \| good	46.108 \| good	0.271 \| good	4.691 \| good	0.208 \| good
2026-03-29T22:00:00.000Z	43 \| good	5.633 \| good	14.536 \| good	46.108 \| good	0.271 \| good	4.691 \| good	0.208 \| good
2026-03-29T23:00:00.000Z	44 \| good	7.681 \| good	33.677 \| good	43.012 \| good	2.309 \| good	8.666 \| good	0.206 \| good
2026-03-30T00:00:00.000Z	44 \| good	7.696 \| good	33.81 \| good	39.539 \| good	2.25 \| good	9.932 \| good	0.217 \| good
2026-03-30T01:00:00.000Z	44 \| good	8.008 \| good	35.128 \| good	37.877 \| good	2.073 \| good	9.36 \| good	0.213 \| good
2026-03-30T02:00:00.000Z	54 \| moderate	10.874 \| good	47.965 \| good	33.635 \| good	1.896 \| good	8.789 \| good	0.208 \| good
2026-03-30T03:00:00.000Z	56 \| moderate	12.29 \| fine	55.168 \| fine	30.76 \| good	1.719 \| good	8.218 \| good	0.204 \| good
2026-03-30T04:00:00.000Z	54 \| moderate	11.297 \| good	50.233 \| good	31.747 \| good	1.603 \| good	7.306 \| good	0.191 \| good
2026-03-30T05:00:00.000Z	52 \| moderate	9.987 \| good	44.571 \| good	31.929 \| good	1.488 \| good	6.394 \| good	0.179 \| good
2026-03-30T06:00:00.000Z	44 \| good	7.842 \| good	34.304 \| good	30.652 \| good	1.372 \| good	5.482 \| good	0.166 \| good
2026-03-30T07:00:00.000Z	32 \| good	4.329 \| good	18.949 \| good	35.166 \| good	1.351 \| good	4.901 \| good	0.166 \| good
2026-03-30T08:00:00.000Z	29 \| good	4.451 \| good	19.153 \| good	31.43 \| good	1.33 \| good	4.321 \| good	0.166 \| good
2026-03-30T09:00:00.000Z	28 \| good	3.938 \| good	17.075 \| good	29.871 \| good	1.309 \| good	3.74 \| good	0.166 \| good
2026-03-30T10:00:00.000Z	23 \| good	3.942 \| good	17.181 \| good	24.543 \| good	1.42 \| good	4.343 \| good	0.178 \| good
2026-03-30T11:00:00.000Z	27 \| good	5.106 \| good	22.076 \| good	21.773 \| good	1.531 \| good	4.946 \| good	0.191 \| good
2026-03-30T12:00:00.000Z	33 \| good	5.652 \| good	24.247 \| good	22.339 \| good	1.642 \| good	5.549 \| good	0.203 \| good
2026-03-30T13:00:00.000Z	38 \| good	7.25 \| good	31.998 \| good	26.082 \| good	1.779 \| good	5.694 \| good	0.203 \| good
2026-03-30T14:00:00.000Z	38 \| good	7.469 \| good	32.882 \| good	29.178 \| good	1.916 \| good	5.839 \| good	0.203 \| good
2026-03-30T15:00:00.000Z	38 \| good	7.226 \| good	31.977 \| good	28.545 \| good	2.052 \| good	5.984 \| good	0.204 \| good
2026-03-30T16:00:00.000Z	38 \| good	6.807 \| good	30.037 \| good	31.142 \| good	2.141 \| good	5.337 \| good	0.195 \| good
2026-03-30T17:00:00.000Z	38 \| good	6.5 \| good	28.891 \| good	28.951 \| good	2.23 \| good	4.691 \| good	0.186 \| good
2026-03-30T18:00:00.000Z	49 \| good	8.977 \| good	39.33 \| good	40.906 \| good	2.318 \| good	4.045 \| good	0.177 \| good
2026-03-30T19:00:00.000Z	49 \| good	8.801 \| good	38.844 \| good	36.998 \| good	2.269 \| good	4.062 \| good	0.176 \| good
2026-03-30T20:00:00.000Z	44 \| good	8.387 \| good	36.803 \| good	33.984 \| good	2.219 \| good	4.079 \| good	0.175 \| good
2026-03-30T21:00:00.000Z	44 \| good	8.322 \| good	36.826 \| good	35.5 \| good	2.169 \| good	4.097 \| good	0.174 \| good
2026-03-30T22:00:00.000Z	34 \| good	5.957 \| good	26.869 \| good	37.451 \| good	2.302 \| good	5.855 \| good	0.185 \| good
2026-03-30T23:00:00.000Z	49 \| good	8.87 \| good	39.067 \| good	32.763 \| good	2.436 \| good	7.613 \| good	0.196 \| good
2026-03-31T00:00:00.000Z	49 \| good	9.24 \| good	41.087 \| good	34.054 \| good	2.569 \| good	9.371 \| good	0.208 \| good
2026-03-31T01:00:00.000Z	54 \| moderate	10.546 \| good	47.007 \| good	35.313 \| good	2.664 \| good	9.754 \| good	0.211 \| good
2026-03-31T02:00:00.000Z	66 \| moderate	16.645 \| fine	74.249 \| fine	22.611 \| good	2.759 \| good	10.137 \| good	0.215 \| good
2026-03-31T03:00:00.000Z	67 \| moderate	17.686 \| fine	78.373 \| fine	13.599 \| good	2.854 \| good	10.52 \| good	0.218 \| good
2026-03-31T04:00:00.000Z	66 \| moderate	16.872 \| fine	74.748 \| fine	13.976 \| good	2.744 \| good	9.844 \| good	0.212 \| good
2026-03-31T05:00:00.000Z	62 \| moderate	14.662 \| fine	65.115 \| fine	17.198 \| good	2.634 \| good	9.167 \| good	0.206 \| good
2026-03-31T06:00:00.000Z	60 \| moderate	13.516 \| fine	13.811 \| good	36.582 \| good	2.507 \| good	8.442 \| good	0.2 \| good
2026-03-31T07:00:00.000Z	49 \| good	9.428 \| good	42.285 \| good	29.833 \| good	2.405 \| good	7.816 \| good	0.194 \| good
2026-03-31T08:00:00.000Z	54 \| moderate	10.96 \| good	48.661 \| good	25.79 \| good	2.286 \| good	7.14 \| good	0.187 \| good
2026-03-31T09:00:00.000Z	54 \| moderate	10.973 \| good	48.63 \| good	19.885 \| good	2.167 \| good	6.465 \| good	0.18 \| good
2026-03-31T10:00:00.000Z	33 \| good	6.032 \| good	26.698 \| good	27.678 \| good	2.023 \| good	6.83 \| good	0.178 \| good
2026-03-31T11:00:00.000Z	27 \| good	4.925 \| good	21.029 \| good	26.434 \| good	1.878 \| good	7.195 \| good	0.177 \| good
2026-03-31T12:00:00.000Z	52 \| moderate	10.402 \| good	10.761 \| good	35.453 \| good	1.723 \| good	7.514 \| good	0.175 \| good
2026-03-31T13:00:00.000Z	54 \| moderate	10.591 \| good	10.963 \| good	35.42 \| good	1.771 \| good	7.287 \| good	0.179 \| good
2026-03-31T14:00:00.000Z	52 \| moderate	10.246 \| good	10.575 \| good	35.387 \| good	1.819 \| good	7.059 \| good	0.184 \| good
2026-03-31T15:00:00.000Z	52 \| moderate	10.072 \| good	10.467 \| good	35.354 \| good	1.867 \| good	6.831 \| good	0.189 \| good
2026-03-31T16:00:00.000Z	52 \| moderate	10.064 \| good	10.47 \| good	38.139 \| good	1.806 \| good	6.199 \| good	0.184 \| good
2026-03-31T17:00:00.000Z	49 \| good	8.635 \| good	37.943 \| good	32.483 \| good	1.759 \| good	5.602 \| good	0.179 \| good
2026-03-31T18:00:00.000Z	52 \| moderate	9.996 \| good	10.392 \| good	43.709 \| good	1.686 \| good	4.934 \| good	0.174 \| good
2026-03-31T19:00:00.000Z	52 \| moderate	10.003 \| good	10.441 \| good	44.472 \| good	1.678 \| good	5.241 \| good	0.175 \| good
2026-03-31T20:00:00.000Z	52 \| moderate	10.151 \| good	10.604 \| good	45.236 \| good	1.669 \| good	5.548 \| good	0.176 \| good
2026-03-31T21:00:00.000Z	52 \| moderate	10.352 \| good	10.813 \| good	46 \| good	1.66 \| good	5.855 \| good	0.176 \| good
2026-03-31T22:00:00.000Z	54 \| moderate	10.541 \| good	10.991 \| good	44.837 \| good	1.766 \| good	7.377 \| good	0.184 \| good

Bristol

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Bristol, Connecticut air quality map: Track AQI near you

0.23ppm

How accurate is Connecticut, USA air quality data?

Air quality data and pollutant measurements for Connecticut, 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

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Frequently asked questions

How often is the air quality data for Bristol, Connecticut updated?

The air quality for Bristol, Connecticut is updated every hour.

When was the worst air quality at Bristol, Connecticut in the last 24 hrs?

The worst air quality in Bristol, Connecticut in the last 24 hours was observed at 09:00:00 on 2026-03-29.

When was the best air quality at Bristol, Connecticut in the last 24 hrs?

In the last 24 hrs, the best air quality in Bristol, Connecticut was observed at 12:00:00 on 2026-03-29.

What is the current air quality in Bristol, Connecticut?

The current air quality in Bristol, Connecticut is 43, categorized as Good based on real-time data.

What pollutant is the most common in Bristol, Connecticut?

The most common pollutant in Bristol, Connecticut is O3.

What should I do if the air quality in Bristol, Connecticut is poor?

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

What is the current concentration of PM_2.5 in Bristol, Connecticut?

The current PM_2.5 concentration at Bristol, Connecticut is 5.633 μg/m³.

What is the current concentration of PM₁₀ in Bristol, Connecticut?

The current PM₁₀ concentration at Bristol, Connecticut is 14.536 μg/m³.

What is the current concentration of carbon monoxide (CO) in Bristol, Connecticut?

The current carbon monoxide (CO) concentration at Bristol, Connecticut is 0.208 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Bristol, Connecticut?

The current sulfur dioxide (SO₂) concentration at Bristol, Connecticut is 0.271 ppb.

What is the current concentration of ozone (O₃) in Bristol, Connecticut?

The current ozone (O₃) concentration at Bristol, Connecticut is 46.108 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Bristol, Connecticut?

The current nitrogen dioxide (NO₂) concentration at Bristol, Connecticut is 4.691 ppb.

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