What is the current concentration of PM10 in Mchenry, Illinois?

The current PM10 concentration at Mchenry, Illinois is 210.568 μg/m3.

What is the current concentration of sulfur dioxide (SO2) in Mchenry, Illinois?

The current sulfur dioxide (SO2) concentration at Mchenry, Illinois is 0.793 ppb.

What is the current concentration of ozone (O3) in Mchenry, Illinois?

The current ozone (O3) concentration at Mchenry, Illinois is 50.945 ppm.

What is the current concentration of nitrogen dioxide (NO2) in Mchenry, Illinois?

The current nitrogen dioxide (NO2) concentration at Mchenry, Illinois is 2.586 ppb.

Live air quality index in McHenry, Illinois today

Name: Live air pollution levels in Mchenry, Illinois today
Creator: Ambee

Stay updated with real-time air quality in McHenry, Illinois 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)

132

Unhealthy for sensitive groups

McHenry, Illinois

Last updated: ... (Local time)

Major air pollutants in McHenry, Illinois

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

47.85 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

210.57 μg/m³

155

255

425

605+

Ozone (O₃)

50.95 ppb

201

201+

Sulfur Dioxide (SO₂)

0.79 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

2.59 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.29 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

McHenry, Illinois

Get Live Pollen Counts

McHenry, Illinois

Scroll To Air Quality Map

Track live McHenry, Illinois air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T07:00:00.000Z	83 \| moderate	14.477 \| fine	120.441 \| fine	43.046 \| good	0.287 \| good	2.915 \| good	0.591 \| good
2025-06-04T08:00:00.000Z	66 \| moderate	16.953 \| fine	79.787 \| fine	40.186 \| good	0.294 \| good	5.584 \| good	0.791 \| good
2025-06-04T09:00:00.000Z	67 \| moderate	18.327 \| fine	69.735 \| fine	34.179 \| good	0.373 \| good	5.359 \| good	0.94 \| good
2025-06-04T10:00:00.000Z	119 \| sensitive	43.351 \| moderate	124.151 \| fine	39.148 \| good	0.482 \| good	4.081 \| good	0.94 \| good
2025-06-04T11:00:00.000Z	102 \| sensitive	35.642 \| moderate	145.749 \| fine	35.932 \| good	0.395 \| good	4.688 \| good	0.996 \| good
2025-06-04T12:00:00.000Z	105 \| sensitive	36.918 \| moderate	110.805 \| fine	30.931 \| good	0.308 \| good	5.246 \| good	0.771 \| good
2025-06-04T13:00:00.000Z	117 \| sensitive	41.519 \| moderate	184.262 \| moderate	38.219 \| good	0.279 \| good	2.864 \| good	0.209 \| good
2025-06-04T14:00:00.000Z	132 \| sensitive	47.872 \| moderate	195.092 \| moderate	33.517 \| good	0.252 \| good	4.657 \| good	0.848 \| good
2025-06-04T15:00:00.000Z	109 \| sensitive	36.934 \| moderate	171.575 \| moderate	30.436 \| good	0.21 \| good	3.834 \| good	0.822 \| good
2025-06-04T16:00:00.000Z	78 \| moderate	18.673 \| fine	108.71 \| fine	34.687 \| good	0.292 \| good	3.258 \| good	0.531 \| good
2025-06-04T17:00:00.000Z	110 \| sensitive	38.93 \| moderate	144.484 \| fine	35.869 \| good	0.455 \| good	4.842 \| good	0.641 \| good
2025-06-04T18:00:00.000Z	124 \| sensitive	45.191 \| moderate	184.682 \| moderate	43.405 \| good	0.335 \| good	3.953 \| good	0.646 \| good
2025-06-04T19:00:00.000Z	139 \| sensitive	51.089 \| moderate	149.326 \| fine	37.806 \| good	0.34 \| good	2.731 \| good	0.593 \| good
2025-06-04T20:00:00.000Z	110 \| sensitive	39.138 \| moderate	141.131 \| fine	42.443 \| good	0.298 \| good	2.935 \| good	0.414 \| good
2025-06-04T21:00:00.000Z	75 \| moderate	21.733 \| fine	69.96 \| fine	40.239 \| good	0.327 \| good	1.673 \| good	0.337 \| good
2025-06-04T22:00:00.000Z	85 \| moderate	26.903 \| fine	123.501 \| fine	50.711 \| good	0.342 \| good	2.23 \| good	0.337 \| good
2025-06-04T23:00:00.000Z	96 \| moderate	32.653 \| fine	120.409 \| fine	48.531 \| good	0.367 \| good	1.849 \| good	0.337 \| good
2025-06-05T00:00:00.000Z	107 \| sensitive	37.721 \| moderate	141.229 \| fine	42.461 \| good	0.25 \| good	2.367 \| good	0.335 \| good
2025-06-05T01:00:00.000Z	97 \| moderate	33.898 \| fine	128.921 \| fine	45.176 \| good	0.251 \| good	3.806 \| good	0.4 \| good
2025-06-05T02:00:00.000Z	124 \| sensitive	44.909 \| moderate	189.034 \| moderate	39.466 \| good	0.336 \| good	12.368 \| good	0.517 \| good
2025-06-05T03:00:00.000Z	84 \| moderate	27.286 \| fine	94.259 \| fine	34.296 \| good	0.347 \| good	18.205 \| good	0.516 \| good
2025-06-05T04:00:00.000Z	96 \| moderate	31.969 \| fine	146.349 \| fine	28.953 \| good	0.349 \| good	30.529 \| good	0.572 \| good
2025-06-05T05:00:00.000Z	115 \| sensitive	41.265 \| moderate	178.01 \| moderate	30.405 \| good	0.297 \| good	27.469 \| good	0.532 \| good
2025-06-05T06:00:00.000Z	92 \| moderate	30.983 \| fine	100.12 \| fine	25.777 \| good	0.271 \| good	24.937 \| good	0.532 \| good
2025-06-05T07:00:00.000Z	88 \| moderate	28.658 \| fine	58.065 \| fine	21.474 \| good	0.441 \| good	22.306 \| good	0.491 \| good
2025-06-05T08:00:00.000Z	112 \| sensitive	40.343 \| moderate	92.946 \| fine	17.42 \| good	0.391 \| good	20.761 \| good	0.464 \| good
2025-06-05T09:00:00.000Z	22 \| good	4.3 \| good	19.281 \| good	20.122 \| good	0.378 \| good	15.853 \| good	0.504 \| good
2025-06-05T10:00:00.000Z	54 \| moderate	10.588 \| good	31.182 \| good	13.207 \| good	0.343 \| good	16.085 \| good	0.489 \| good
2025-06-05T11:00:00.000Z	71 \| moderate	17.249 \| fine	95.914 \| fine	14.155 \| good	0.34 \| good	16.35 \| good	0.581 \| good
2025-06-05T12:00:00.000Z	86 \| moderate	27.983 \| fine	83.802 \| fine	22.023 \| good	0.297 \| good	14.061 \| good	0.579 \| good
2025-06-05T13:00:00.000Z	91 \| moderate	24.052 \| fine	134.8 \| fine	25.488 \| good	0.296 \| good	8.211 \| good	0.499 \| good
2025-06-05T14:00:00.000Z	110 \| sensitive	38.98 \| moderate	167.008 \| moderate	21.316 \| good	0.309 \| good	3.835 \| good	0.408 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	37.185 \| moderate	134.789 \| fine	23.433 \| good	0.272 \| good	2.717 \| good	0.386 \| good
2025-06-05T16:00:00.000Z	134 \| sensitive	48.654 \| moderate	202.491 \| moderate	36.554 \| good	0.573 \| good	3.571 \| good	0.386 \| good
2025-06-05T17:00:00.000Z	152 \| unhealthy	57.421 \| poor	164.019 \| moderate	45.299 \| good	1.922 \| good	2.842 \| good	0.363 \| good
2025-06-05T18:00:00.000Z	126 \| sensitive	41.659 \| moderate	205.935 \| moderate	43.859 \| good	0.957 \| good	1.847 \| good	0.352 \| good
2025-06-05T19:00:00.000Z	130 \| sensitive	42.583 \| moderate	212.904 \| moderate	50.743 \| good	0.958 \| good	1.642 \| good	0.299 \| good
2025-06-05T20:00:00.000Z	132 \| sensitive	47.852 \| moderate	210.568 \| moderate	50.945 \| good	0.793 \| good	2.586 \| good	0.286 \| good
2025-06-05T21:00:00.000Z	124 \| sensitive	45.348 \| moderate	155.752 \| moderate	53.818 \| good	0.749 \| good	2.437 \| good	0.264 \| good
2025-06-05T22:00:00.000Z	136 \| sensitive	49.033 \| moderate	225.633 \| moderate	55.233 \| fine	0.359 \| good	2.619 \| good	0.264 \| good
2025-06-05T23:00:00.000Z	142 \| sensitive	49.96 \| moderate	236.897 \| moderate	55.013 \| fine	0.377 \| good	3.305 \| good	0.251 \| good
2025-06-06T00:00:00.000Z	124 \| sensitive	44.886 \| moderate	150.865 \| fine	51.74 \| good	0.684 \| good	3.246 \| good	0.263 \| good
2025-06-06T01:00:00.000Z	142 \| sensitive	52.129 \| moderate	234.993 \| moderate	51.316 \| good	0.948 \| good	4.921 \| good	0.263 \| good
2025-06-06T02:00:00.000Z	119 \| sensitive	42.607 \| moderate	125.286 \| fine	50.516 \| good	1.334 \| good	4.821 \| good	0.275 \| good
2025-06-06T03:00:00.000Z	116 \| sensitive	40.618 \| moderate	185.983 \| moderate	48.523 \| good	1.43 \| good	5.184 \| good	0.286 \| good
2025-06-06T04:00:00.000Z	122 \| sensitive	44.035 \| moderate	130.478 \| fine	38.831 \| good	1.341 \| good	3.921 \| good	0.274 \| good
2025-06-06T05:00:00.000Z	139 \| sensitive	50.648 \| moderate	177.46 \| moderate	41.961 \| good	0.806 \| good	6.001 \| good	0.326 \| good
2025-06-05T21:00:00.000Z	132 \| sensitive	47.852 \| moderate	210.568 \| moderate	50.945 \| good	0.793 \| good	2.586 \| good	0.286 \| good
2025-06-05T22:00:00.000Z	112 \| sensitive	39.579 \| moderate	174.566 \| moderate	49.229 \| good	0.449 \| good	3.764 \| good	0.232 \| good
2025-06-05T23:00:00.000Z	112 \| sensitive	39.629 \| moderate	174.539 \| moderate	45.271 \| good	0.48 \| good	4.338 \| good	0.242 \| good
2025-06-06T00:00:00.000Z	115 \| sensitive	40.524 \| moderate	179.53 \| moderate	44.516 \| good	0.511 \| good	4.912 \| good	0.252 \| good
2025-06-06T01:00:00.000Z	107 \| sensitive	37.991 \| moderate	166.76 \| moderate	38.518 \| good	0.547 \| good	8.203 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	111 \| sensitive	39.458 \| moderate	174.534 \| moderate	37.043 \| good	0.557 \| good	8.015 \| good	0.257 \| good
2025-06-06T03:00:00.000Z	112 \| sensitive	39.753 \| moderate	175.458 \| moderate	31.494 \| good	0.566 \| good	7.828 \| good	0.257 \| good
2025-06-06T04:00:00.000Z	115 \| sensitive	40.521 \| moderate	179.735 \| moderate	28.412 \| good	0.56 \| good	6.519 \| good	0.23 \| good
2025-06-06T05:00:00.000Z	115 \| sensitive	41.322 \| moderate	183.972 \| moderate	25.958 \| good	0.54 \| good	5.982 \| good	0.225 \| good
2025-06-06T06:00:00.000Z	122 \| sensitive	44.05 \| moderate	196.236 \| moderate	21.772 \| good	0.52 \| good	5.445 \| good	0.219 \| good
2025-06-06T07:00:00.000Z	127 \| sensitive	46.073 \| moderate	207.02 \| moderate	22.343 \| good	0.471 \| good	4.923 \| good	0.203 \| good
2025-06-06T08:00:00.000Z	122 \| sensitive	43.932 \| moderate	195.666 \| moderate	22.869 \| good	0.458 \| good	4.627 \| good	0.2 \| good
2025-06-06T09:00:00.000Z	119 \| sensitive	42.597 \| moderate	189.518 \| moderate	21.559 \| good	0.444 \| good	4.33 \| good	0.197 \| good
2025-06-06T10:00:00.000Z	117 \| sensitive	41.726 \| moderate	185.46 \| moderate	20.76 \| good	0.445 \| good	5.988 \| good	0.212 \| good
2025-06-06T11:00:00.000Z	113 \| sensitive	40.382 \| moderate	178.855 \| moderate	22.443 \| good	0.458 \| good	5.803 \| good	0.212 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.212 \| moderate	158.219 \| moderate	27.848 \| good	0.47 \| good	5.618 \| good	0.212 \| good
2025-06-06T13:00:00.000Z	82 \| moderate	26.219 \| fine	113.81 \| fine	32.315 \| good	0.686 \| good	4.004 \| good	0.229 \| good
2025-06-06T14:00:00.000Z	71 \| moderate	20.296 \| fine	89.194 \| fine	37.068 \| good	0.713 \| good	4.34 \| good	0.234 \| good
2025-06-06T15:00:00.000Z	67 \| moderate	18.158 \| fine	79.564 \| fine	42.732 \| good	0.741 \| good	4.677 \| good	0.239 \| good
2025-06-06T16:00:00.000Z	66 \| moderate	17.44 \| fine	77.129 \| fine	46.661 \| good	0.484 \| good	1.629 \| good	0.203 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	14.859 \| fine	66.166 \| fine	49.013 \| good	0.522 \| good	2.061 \| good	0.209 \| good
2025-06-06T18:00:00.000Z	56 \| moderate	12.46 \| fine	55.697 \| fine	48.899 \| good	0.561 \| good	2.493 \| good	0.215 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.766 \| fine	61.488 \| fine	44.085 \| good	0.461 \| good	1.471 \| good	0.192 \| good
2025-06-06T20:00:00.000Z	60 \| moderate	14.176 \| fine	63.349 \| fine	48.472 \| good	0.512 \| good	1.896 \| good	0.2 \| good
2025-06-06T21:00:00.000Z	60 \| moderate	14.475 \| fine	65.196 \| fine	51.186 \| good	0.563 \| good	2.32 \| good	0.208 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	16.18 \| fine	72.36 \| fine	48.937 \| good	0.525 \| good	4.769 \| good	0.22 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	17.308 \| fine	76.092 \| fine	42.245 \| good	0.583 \| good	5.703 \| good	0.232 \| good
2025-06-07T00:00:00.000Z	64 \| moderate	15.954 \| fine	71.522 \| fine	38.005 \| good	0.641 \| good	6.636 \| good	0.244 \| good
2025-06-07T01:00:00.000Z	56 \| moderate	12.395 \| fine	55.679 \| fine	32.68 \| good	0.729 \| good	11.531 \| good	0.271 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	13.469 \| fine	60.132 \| fine	29.078 \| good	0.778 \| good	11.927 \| good	0.277 \| good
2025-06-07T03:00:00.000Z	56 \| moderate	12.324 \| fine	55.984 \| fine	23.927 \| good	0.827 \| good	12.323 \| good	0.282 \| good
2025-06-07T04:00:00.000Z	60 \| moderate	13.826 \| fine	61.953 \| fine	21.06 \| good	0.84 \| good	9.011 \| good	0.243 \| good
2025-06-07T05:00:00.000Z	56 \| moderate	11.959 \| good	53.764 \| good	20.146 \| good	0.817 \| good	8.549 \| good	0.239 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	10.668 \| good	47.488 \| good	22.508 \| good	0.794 \| good	8.086 \| good	0.235 \| good
2025-06-07T07:00:00.000Z	54 \| moderate	11.459 \| good	50.347 \| good	24.016 \| good	0.693 \| good	7.578 \| good	0.221 \| good
2025-06-07T08:00:00.000Z	49 \| good	9.411 \| good	42.015 \| good	23.253 \| good	0.647 \| good	6.899 \| good	0.216 \| good
2025-06-07T09:00:00.000Z	22 \| good	3.678 \| good	15.783 \| good	24.37 \| good	0.6 \| good	6.22 \| good	0.211 \| good
2025-06-07T10:00:00.000Z	25 \| good	0.951 \| good	3.837 \| good	26.875 \| good	0.483 \| good	4.988 \| good	0.207 \| good
2025-06-07T11:00:00.000Z	25 \| good	2.809 \| good	11.606 \| good	26.994 \| good	0.46 \| good	4.713 \| good	0.206 \| good
2025-06-07T12:00:00.000Z	30 \| good	0.934 \| good	3.567 \| good	31.946 \| good	0.438 \| good	4.438 \| good	0.205 \| good
2025-06-07T13:00:00.000Z	31 \| good	3.142 \| good	12.867 \| good	32.595 \| good	0.587 \| good	2.801 \| good	0.202 \| good
2025-06-07T14:00:00.000Z	33 \| good	5.072 \| good	22.094 \| good	35.647 \| good	0.597 \| good	2.902 \| good	0.206 \| good
2025-06-07T15:00:00.000Z	33 \| good	5.787 \| good	25.117 \| good	35.106 \| good	0.606 \| good	3.003 \| good	0.21 \| good
2025-06-07T16:00:00.000Z	49 \| good	8.544 \| good	37.443 \| good	36.874 \| good	0.695 \| good	1.246 \| good	0.18 \| good
2025-06-07T17:00:00.000Z	49 \| good	9.38 \| good	41.705 \| good	36.921 \| good	0.747 \| good	1.491 \| good	0.187 \| good
2025-06-07T18:00:00.000Z	44 \| good	7.672 \| good	33.702 \| good	35.146 \| good	0.799 \| good	1.735 \| good	0.194 \| good
2025-06-07T19:00:00.000Z	38 \| good	7.345 \| good	32.109 \| good	30.344 \| good	0.862 \| good	1.417 \| good	0.181 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	11.693 \| good	52.226 \| good	35.707 \| good	0.876 \| good	1.684 \| good	0.187 \| good
2025-06-07T21:00:00.000Z	60 \| moderate	14.257 \| fine	63.519 \| fine	37.021 \| good	0.89 \| good	1.952 \| good	0.193 \| good

McHenry

Get reliable air quality data to drive your business

McHenry, Illinois air quality map: Track AQI near you

0.29ppm

How accurate is Illinois, USA air quality data?

Air quality data and pollutant measurements for Illinois, 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 Mchenry, Illinois updated?

The air quality for Mchenry, Illinois is updated every hour.

When was the worst air quality at Mchenry, Illinois in the last 24 hrs?

The worst air quality in Mchenry, Illinois in the last 24 hours was observed at 05:00:00 on 2025-06-05.

When was the best air quality at Mchenry, Illinois in the last 24 hrs?

In the last 24 hrs, the best air quality in Mchenry, Illinois was observed at 09:00:00 on 2025-06-05.

What is the current air quality in Mchenry, Illinois?

The current air quality in Mchenry, Illinois is 132, categorized as Unhealthy for Sensitive Groups based on real-time data.

What pollutant is the most common in Mchenry, Illinois?

The most common pollutant in Mchenry, Illinois is PM2.5.

What should I do if the air quality in Mchenry, Illinois is poor?

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

What is the current concentration of PM_2.5 in Mchenry, Illinois?

The current PM_2.5 concentration at Mchenry, Illinois is 47.852 μg/m³.

What is the current concentration of PM₁₀ in Mchenry, Illinois?

The current PM₁₀ concentration at Mchenry, Illinois is 210.568 μg/m³.

What is the current concentration of carbon monoxide (CO) in Mchenry, Illinois?

The current carbon monoxide (CO) concentration at Mchenry, Illinois is 0.286 ppm.

What is the current concentration of sulfur dioxide (SO₂) in Mchenry, Illinois?

The current sulfur dioxide (SO₂) concentration at Mchenry, Illinois is 0.793 ppb.

What is the current concentration of ozone (O₃) in Mchenry, Illinois?

The current ozone (O₃) concentration at Mchenry, Illinois is 50.945 ppm.

What is the current concentration of nitrogen dioxide (NO₂) in Mchenry, Illinois?

The current nitrogen dioxide (NO₂) concentration at Mchenry, Illinois is 2.586 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-04T07:00:00.000Z	83 \| moderate	14.477 \| fine	120.441 \| fine	43.046 \| good	0.287 \| good	2.915 \| good	0.591 \| good
2025-06-04T08:00:00.000Z	66 \| moderate	16.953 \| fine	79.787 \| fine	40.186 \| good	0.294 \| good	5.584 \| good	0.791 \| good
2025-06-04T09:00:00.000Z	67 \| moderate	18.327 \| fine	69.735 \| fine	34.179 \| good	0.373 \| good	5.359 \| good	0.94 \| good
2025-06-04T10:00:00.000Z	119 \| sensitive	43.351 \| moderate	124.151 \| fine	39.148 \| good	0.482 \| good	4.081 \| good	0.94 \| good
2025-06-04T11:00:00.000Z	102 \| sensitive	35.642 \| moderate	145.749 \| fine	35.932 \| good	0.395 \| good	4.688 \| good	0.996 \| good
2025-06-04T12:00:00.000Z	105 \| sensitive	36.918 \| moderate	110.805 \| fine	30.931 \| good	0.308 \| good	5.246 \| good	0.771 \| good
2025-06-04T13:00:00.000Z	117 \| sensitive	41.519 \| moderate	184.262 \| moderate	38.219 \| good	0.279 \| good	2.864 \| good	0.209 \| good
2025-06-04T14:00:00.000Z	132 \| sensitive	47.872 \| moderate	195.092 \| moderate	33.517 \| good	0.252 \| good	4.657 \| good	0.848 \| good
2025-06-04T15:00:00.000Z	109 \| sensitive	36.934 \| moderate	171.575 \| moderate	30.436 \| good	0.21 \| good	3.834 \| good	0.822 \| good
2025-06-04T16:00:00.000Z	78 \| moderate	18.673 \| fine	108.71 \| fine	34.687 \| good	0.292 \| good	3.258 \| good	0.531 \| good
2025-06-04T17:00:00.000Z	110 \| sensitive	38.93 \| moderate	144.484 \| fine	35.869 \| good	0.455 \| good	4.842 \| good	0.641 \| good
2025-06-04T18:00:00.000Z	124 \| sensitive	45.191 \| moderate	184.682 \| moderate	43.405 \| good	0.335 \| good	3.953 \| good	0.646 \| good
2025-06-04T19:00:00.000Z	139 \| sensitive	51.089 \| moderate	149.326 \| fine	37.806 \| good	0.34 \| good	2.731 \| good	0.593 \| good
2025-06-04T20:00:00.000Z	110 \| sensitive	39.138 \| moderate	141.131 \| fine	42.443 \| good	0.298 \| good	2.935 \| good	0.414 \| good
2025-06-04T21:00:00.000Z	75 \| moderate	21.733 \| fine	69.96 \| fine	40.239 \| good	0.327 \| good	1.673 \| good	0.337 \| good
2025-06-04T22:00:00.000Z	85 \| moderate	26.903 \| fine	123.501 \| fine	50.711 \| good	0.342 \| good	2.23 \| good	0.337 \| good
2025-06-04T23:00:00.000Z	96 \| moderate	32.653 \| fine	120.409 \| fine	48.531 \| good	0.367 \| good	1.849 \| good	0.337 \| good
2025-06-05T00:00:00.000Z	107 \| sensitive	37.721 \| moderate	141.229 \| fine	42.461 \| good	0.25 \| good	2.367 \| good	0.335 \| good
2025-06-05T01:00:00.000Z	97 \| moderate	33.898 \| fine	128.921 \| fine	45.176 \| good	0.251 \| good	3.806 \| good	0.4 \| good
2025-06-05T02:00:00.000Z	124 \| sensitive	44.909 \| moderate	189.034 \| moderate	39.466 \| good	0.336 \| good	12.368 \| good	0.517 \| good
2025-06-05T03:00:00.000Z	84 \| moderate	27.286 \| fine	94.259 \| fine	34.296 \| good	0.347 \| good	18.205 \| good	0.516 \| good
2025-06-05T04:00:00.000Z	96 \| moderate	31.969 \| fine	146.349 \| fine	28.953 \| good	0.349 \| good	30.529 \| good	0.572 \| good
2025-06-05T05:00:00.000Z	115 \| sensitive	41.265 \| moderate	178.01 \| moderate	30.405 \| good	0.297 \| good	27.469 \| good	0.532 \| good
2025-06-05T06:00:00.000Z	92 \| moderate	30.983 \| fine	100.12 \| fine	25.777 \| good	0.271 \| good	24.937 \| good	0.532 \| good
2025-06-05T07:00:00.000Z	88 \| moderate	28.658 \| fine	58.065 \| fine	21.474 \| good	0.441 \| good	22.306 \| good	0.491 \| good
2025-06-05T08:00:00.000Z	112 \| sensitive	40.343 \| moderate	92.946 \| fine	17.42 \| good	0.391 \| good	20.761 \| good	0.464 \| good
2025-06-05T09:00:00.000Z	22 \| good	4.3 \| good	19.281 \| good	20.122 \| good	0.378 \| good	15.853 \| good	0.504 \| good
2025-06-05T10:00:00.000Z	54 \| moderate	10.588 \| good	31.182 \| good	13.207 \| good	0.343 \| good	16.085 \| good	0.489 \| good
2025-06-05T11:00:00.000Z	71 \| moderate	17.249 \| fine	95.914 \| fine	14.155 \| good	0.34 \| good	16.35 \| good	0.581 \| good
2025-06-05T12:00:00.000Z	86 \| moderate	27.983 \| fine	83.802 \| fine	22.023 \| good	0.297 \| good	14.061 \| good	0.579 \| good
2025-06-05T13:00:00.000Z	91 \| moderate	24.052 \| fine	134.8 \| fine	25.488 \| good	0.296 \| good	8.211 \| good	0.499 \| good
2025-06-05T14:00:00.000Z	110 \| sensitive	38.98 \| moderate	167.008 \| moderate	21.316 \| good	0.309 \| good	3.835 \| good	0.408 \| good
2025-06-05T15:00:00.000Z	105 \| sensitive	37.185 \| moderate	134.789 \| fine	23.433 \| good	0.272 \| good	2.717 \| good	0.386 \| good
2025-06-05T16:00:00.000Z	134 \| sensitive	48.654 \| moderate	202.491 \| moderate	36.554 \| good	0.573 \| good	3.571 \| good	0.386 \| good
2025-06-05T17:00:00.000Z	152 \| unhealthy	57.421 \| poor	164.019 \| moderate	45.299 \| good	1.922 \| good	2.842 \| good	0.363 \| good
2025-06-05T18:00:00.000Z	126 \| sensitive	41.659 \| moderate	205.935 \| moderate	43.859 \| good	0.957 \| good	1.847 \| good	0.352 \| good
2025-06-05T19:00:00.000Z	130 \| sensitive	42.583 \| moderate	212.904 \| moderate	50.743 \| good	0.958 \| good	1.642 \| good	0.299 \| good
2025-06-05T20:00:00.000Z	132 \| sensitive	47.852 \| moderate	210.568 \| moderate	50.945 \| good	0.793 \| good	2.586 \| good	0.286 \| good
2025-06-05T21:00:00.000Z	124 \| sensitive	45.348 \| moderate	155.752 \| moderate	53.818 \| good	0.749 \| good	2.437 \| good	0.264 \| good
2025-06-05T22:00:00.000Z	136 \| sensitive	49.033 \| moderate	225.633 \| moderate	55.233 \| fine	0.359 \| good	2.619 \| good	0.264 \| good
2025-06-05T23:00:00.000Z	142 \| sensitive	49.96 \| moderate	236.897 \| moderate	55.013 \| fine	0.377 \| good	3.305 \| good	0.251 \| good
2025-06-06T00:00:00.000Z	124 \| sensitive	44.886 \| moderate	150.865 \| fine	51.74 \| good	0.684 \| good	3.246 \| good	0.263 \| good
2025-06-06T01:00:00.000Z	142 \| sensitive	52.129 \| moderate	234.993 \| moderate	51.316 \| good	0.948 \| good	4.921 \| good	0.263 \| good
2025-06-06T02:00:00.000Z	119 \| sensitive	42.607 \| moderate	125.286 \| fine	50.516 \| good	1.334 \| good	4.821 \| good	0.275 \| good
2025-06-06T03:00:00.000Z	116 \| sensitive	40.618 \| moderate	185.983 \| moderate	48.523 \| good	1.43 \| good	5.184 \| good	0.286 \| good
2025-06-06T04:00:00.000Z	122 \| sensitive	44.035 \| moderate	130.478 \| fine	38.831 \| good	1.341 \| good	3.921 \| good	0.274 \| good
2025-06-06T05:00:00.000Z	139 \| sensitive	50.648 \| moderate	177.46 \| moderate	41.961 \| good	0.806 \| good	6.001 \| good	0.326 \| good
2025-06-05T21:00:00.000Z	132 \| sensitive	47.852 \| moderate	210.568 \| moderate	50.945 \| good	0.793 \| good	2.586 \| good	0.286 \| good
2025-06-05T22:00:00.000Z	112 \| sensitive	39.579 \| moderate	174.566 \| moderate	49.229 \| good	0.449 \| good	3.764 \| good	0.232 \| good
2025-06-05T23:00:00.000Z	112 \| sensitive	39.629 \| moderate	174.539 \| moderate	45.271 \| good	0.48 \| good	4.338 \| good	0.242 \| good
2025-06-06T00:00:00.000Z	115 \| sensitive	40.524 \| moderate	179.53 \| moderate	44.516 \| good	0.511 \| good	4.912 \| good	0.252 \| good
2025-06-06T01:00:00.000Z	107 \| sensitive	37.991 \| moderate	166.76 \| moderate	38.518 \| good	0.547 \| good	8.203 \| good	0.258 \| good
2025-06-06T02:00:00.000Z	111 \| sensitive	39.458 \| moderate	174.534 \| moderate	37.043 \| good	0.557 \| good	8.015 \| good	0.257 \| good
2025-06-06T03:00:00.000Z	112 \| sensitive	39.753 \| moderate	175.458 \| moderate	31.494 \| good	0.566 \| good	7.828 \| good	0.257 \| good
2025-06-06T04:00:00.000Z	115 \| sensitive	40.521 \| moderate	179.735 \| moderate	28.412 \| good	0.56 \| good	6.519 \| good	0.23 \| good
2025-06-06T05:00:00.000Z	115 \| sensitive	41.322 \| moderate	183.972 \| moderate	25.958 \| good	0.54 \| good	5.982 \| good	0.225 \| good
2025-06-06T06:00:00.000Z	122 \| sensitive	44.05 \| moderate	196.236 \| moderate	21.772 \| good	0.52 \| good	5.445 \| good	0.219 \| good
2025-06-06T07:00:00.000Z	127 \| sensitive	46.073 \| moderate	207.02 \| moderate	22.343 \| good	0.471 \| good	4.923 \| good	0.203 \| good
2025-06-06T08:00:00.000Z	122 \| sensitive	43.932 \| moderate	195.666 \| moderate	22.869 \| good	0.458 \| good	4.627 \| good	0.2 \| good
2025-06-06T09:00:00.000Z	119 \| sensitive	42.597 \| moderate	189.518 \| moderate	21.559 \| good	0.444 \| good	4.33 \| good	0.197 \| good
2025-06-06T10:00:00.000Z	117 \| sensitive	41.726 \| moderate	185.46 \| moderate	20.76 \| good	0.445 \| good	5.988 \| good	0.212 \| good
2025-06-06T11:00:00.000Z	113 \| sensitive	40.382 \| moderate	178.855 \| moderate	22.443 \| good	0.458 \| good	5.803 \| good	0.212 \| good
2025-06-06T12:00:00.000Z	102 \| sensitive	36.212 \| moderate	158.219 \| moderate	27.848 \| good	0.47 \| good	5.618 \| good	0.212 \| good
2025-06-06T13:00:00.000Z	82 \| moderate	26.219 \| fine	113.81 \| fine	32.315 \| good	0.686 \| good	4.004 \| good	0.229 \| good
2025-06-06T14:00:00.000Z	71 \| moderate	20.296 \| fine	89.194 \| fine	37.068 \| good	0.713 \| good	4.34 \| good	0.234 \| good
2025-06-06T15:00:00.000Z	67 \| moderate	18.158 \| fine	79.564 \| fine	42.732 \| good	0.741 \| good	4.677 \| good	0.239 \| good
2025-06-06T16:00:00.000Z	66 \| moderate	17.44 \| fine	77.129 \| fine	46.661 \| good	0.484 \| good	1.629 \| good	0.203 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	14.859 \| fine	66.166 \| fine	49.013 \| good	0.522 \| good	2.061 \| good	0.209 \| good
2025-06-06T18:00:00.000Z	56 \| moderate	12.46 \| fine	55.697 \| fine	48.899 \| good	0.561 \| good	2.493 \| good	0.215 \| good
2025-06-06T19:00:00.000Z	60 \| moderate	13.766 \| fine	61.488 \| fine	44.085 \| good	0.461 \| good	1.471 \| good	0.192 \| good
2025-06-06T20:00:00.000Z	60 \| moderate	14.176 \| fine	63.349 \| fine	48.472 \| good	0.512 \| good	1.896 \| good	0.2 \| good
2025-06-06T21:00:00.000Z	60 \| moderate	14.475 \| fine	65.196 \| fine	51.186 \| good	0.563 \| good	2.32 \| good	0.208 \| good
2025-06-06T22:00:00.000Z	64 \| moderate	16.18 \| fine	72.36 \| fine	48.937 \| good	0.525 \| good	4.769 \| good	0.22 \| good
2025-06-06T23:00:00.000Z	66 \| moderate	17.308 \| fine	76.092 \| fine	42.245 \| good	0.583 \| good	5.703 \| good	0.232 \| good
2025-06-07T00:00:00.000Z	64 \| moderate	15.954 \| fine	71.522 \| fine	38.005 \| good	0.641 \| good	6.636 \| good	0.244 \| good
2025-06-07T01:00:00.000Z	56 \| moderate	12.395 \| fine	55.679 \| fine	32.68 \| good	0.729 \| good	11.531 \| good	0.271 \| good
2025-06-07T02:00:00.000Z	58 \| moderate	13.469 \| fine	60.132 \| fine	29.078 \| good	0.778 \| good	11.927 \| good	0.277 \| good
2025-06-07T03:00:00.000Z	56 \| moderate	12.324 \| fine	55.984 \| fine	23.927 \| good	0.827 \| good	12.323 \| good	0.282 \| good
2025-06-07T04:00:00.000Z	60 \| moderate	13.826 \| fine	61.953 \| fine	21.06 \| good	0.84 \| good	9.011 \| good	0.243 \| good
2025-06-07T05:00:00.000Z	56 \| moderate	11.959 \| good	53.764 \| good	20.146 \| good	0.817 \| good	8.549 \| good	0.239 \| good
2025-06-07T06:00:00.000Z	54 \| moderate	10.668 \| good	47.488 \| good	22.508 \| good	0.794 \| good	8.086 \| good	0.235 \| good
2025-06-07T07:00:00.000Z	54 \| moderate	11.459 \| good	50.347 \| good	24.016 \| good	0.693 \| good	7.578 \| good	0.221 \| good
2025-06-07T08:00:00.000Z	49 \| good	9.411 \| good	42.015 \| good	23.253 \| good	0.647 \| good	6.899 \| good	0.216 \| good
2025-06-07T09:00:00.000Z	22 \| good	3.678 \| good	15.783 \| good	24.37 \| good	0.6 \| good	6.22 \| good	0.211 \| good
2025-06-07T10:00:00.000Z	25 \| good	0.951 \| good	3.837 \| good	26.875 \| good	0.483 \| good	4.988 \| good	0.207 \| good
2025-06-07T11:00:00.000Z	25 \| good	2.809 \| good	11.606 \| good	26.994 \| good	0.46 \| good	4.713 \| good	0.206 \| good
2025-06-07T12:00:00.000Z	30 \| good	0.934 \| good	3.567 \| good	31.946 \| good	0.438 \| good	4.438 \| good	0.205 \| good
2025-06-07T13:00:00.000Z	31 \| good	3.142 \| good	12.867 \| good	32.595 \| good	0.587 \| good	2.801 \| good	0.202 \| good
2025-06-07T14:00:00.000Z	33 \| good	5.072 \| good	22.094 \| good	35.647 \| good	0.597 \| good	2.902 \| good	0.206 \| good
2025-06-07T15:00:00.000Z	33 \| good	5.787 \| good	25.117 \| good	35.106 \| good	0.606 \| good	3.003 \| good	0.21 \| good
2025-06-07T16:00:00.000Z	49 \| good	8.544 \| good	37.443 \| good	36.874 \| good	0.695 \| good	1.246 \| good	0.18 \| good
2025-06-07T17:00:00.000Z	49 \| good	9.38 \| good	41.705 \| good	36.921 \| good	0.747 \| good	1.491 \| good	0.187 \| good
2025-06-07T18:00:00.000Z	44 \| good	7.672 \| good	33.702 \| good	35.146 \| good	0.799 \| good	1.735 \| good	0.194 \| good
2025-06-07T19:00:00.000Z	38 \| good	7.345 \| good	32.109 \| good	30.344 \| good	0.862 \| good	1.417 \| good	0.181 \| good
2025-06-07T20:00:00.000Z	56 \| moderate	11.693 \| good	52.226 \| good	35.707 \| good	0.876 \| good	1.684 \| good	0.187 \| good
2025-06-07T21:00:00.000Z	60 \| moderate	14.257 \| fine	63.519 \| fine	37.021 \| good	0.89 \| good	1.952 \| good	0.193 \| good

Live air quality index in McHenry, Illinois today

Major air pollutants in McHenry, Illinois

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

McHenry, Illinois

Fox Lake, Illinois

Crystal Lake, Illinois

Wauconda, Illinois

Cary, Illinois

Round Lake, Illinois

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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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