What are the current PM10 levels at Merrillville, Indiana?

The current PM10 levels in Merrillville, Indiana are 100.959 μg/m3.

What are the current sulfur dioxide (SO2) levels at Merrillville, Indiana?

The current sulfur dioxide (SO2) levels in Merrillville, Indiana are 0.375 ppb.

What are the current ozone (O3) levels at Merrillville, Indiana?

The current ozone (O3) levels at Merrillville, Indiana is 34.342 ppm.

What are the current nitrogen dioxide (NO2) levels at Merrillville, Indiana?

The current nitrogen dioxide (NO2) levels at Merrillville, Indiana is 3.128 ppb.

Live air quality index in Merrillville, Indiana today

Name: Live air pollution levels in Merrillville, Indiana today
Creator: Ambee

Stay updated with real-time air quality in Merrillville, Indiana 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)

Moderate

Merrillville, Indiana

Last updated: ... (Local time)

Major air pollutants in Merrillville, Indiana

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

20.46 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

100.96 μg/m³

155

255

425

605+

Ozone (O₃)

34.34 ppb

201

201+

Sulfur Dioxide (SO₂)

0.38 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

3.13 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.53 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Moderate

Merrillville, Indiana

Get Live Pollen Counts

Merrillville, Indiana

Scroll To Air Quality Map

Track live Merrillville, Indiana air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T21:00:00.000Z	52 \| moderate	9.932 \| good	41.792 \| good	52.165 \| good	0.856 \| good	2.66 \| good	0.184 \| good
2025-06-02T22:00:00.000Z	58 \| moderate	9.505 \| good	47.63 \| good	56.699 \| fine	0.676 \| good	2.038 \| good	0.166 \| good
2025-06-02T23:00:00.000Z	67 \| moderate	12.468 \| fine	53.843 \| good	59.505 \| fine	0.501 \| good	1.902 \| good	0.203 \| good
2025-06-03T00:00:00.000Z	67 \| moderate	13.111 \| fine	52.335 \| good	60.017 \| fine	0.499 \| good	3.281 \| good	0.178 \| good
2025-06-03T01:00:00.000Z	60 \| moderate	13.618 \| fine	61.235 \| fine	55.54 \| fine	0.428 \| good	5.326 \| good	0.196 \| good
2025-06-03T02:00:00.000Z	56 \| moderate	12.026 \| good	50.381 \| good	48.112 \| good	0.523 \| good	9.768 \| good	0.231 \| good
2025-06-03T03:00:00.000Z	66 \| moderate	16.976 \| fine	78.693 \| fine	47.126 \| good	0.562 \| good	12.04 \| good	0.36 \| good
2025-06-03T04:00:00.000Z	66 \| moderate	17.312 \| fine	77.569 \| fine	45.878 \| good	0.584 \| good	8.562 \| good	0.36 \| good
2025-06-03T05:00:00.000Z	56 \| moderate	12.346 \| fine	38.931 \| good	43.542 \| good	0.563 \| good	11.133 \| good	0.377 \| good
2025-06-03T06:00:00.000Z	62 \| moderate	14.986 \| fine	41.79 \| good	40.824 \| good	0.579 \| good	10.473 \| good	0.324 \| good
2025-06-03T07:00:00.000Z	62 \| moderate	15.311 \| fine	55.371 \| fine	42.141 \| good	0.505 \| good	6.911 \| good	0.307 \| good
2025-06-03T08:00:00.000Z	62 \| moderate	14.903 \| fine	55.609 \| fine	43.515 \| good	0.607 \| good	9.779 \| good	0.288 \| good
2025-06-03T09:00:00.000Z	56 \| moderate	12.019 \| good	41.323 \| good	42.28 \| good	0.658 \| good	6.311 \| good	0.286 \| good
2025-06-03T10:00:00.000Z	56 \| moderate	12.082 \| good	44.813 \| good	42.105 \| good	0.631 \| good	9.627 \| good	0.321 \| good
2025-06-03T11:00:00.000Z	60 \| moderate	13.826 \| fine	57.251 \| fine	43.232 \| good	0.694 \| good	13.047 \| good	0.311 \| good
2025-06-03T12:00:00.000Z	54 \| moderate	11.204 \| good	50.753 \| good	43.773 \| good	0.73 \| good	11.758 \| good	0.329 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	13.371 \| fine	61.312 \| fine	40.027 \| good	0.79 \| good	11.047 \| good	0.312 \| good
2025-06-03T14:00:00.000Z	54 \| moderate	10.822 \| good	45.264 \| good	35.971 \| good	0.784 \| good	10.231 \| good	0.312 \| good
2025-06-03T15:00:00.000Z	54 \| moderate	11.176 \| good	50.051 \| good	40.513 \| good	0.904 \| good	7.233 \| good	0.232 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	13.611 \| fine	62.048 \| fine	39.628 \| good	0.769 \| good	5.984 \| good	0.251 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.087 \| fine	60.402 \| fine	43.98 \| good	0.526 \| good	2.857 \| good	0.252 \| good
2025-06-03T18:00:00.000Z	58 \| moderate	12.626 \| fine	55.856 \| fine	52.347 \| good	0.386 \| good	1.946 \| good	0.252 \| good
2025-06-03T19:00:00.000Z	58 \| moderate	12.65 \| fine	56.046 \| fine	55.716 \| fine	0.424 \| good	3.535 \| good	0.233 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	15.638 \| fine	76.333 \| fine	55.603 \| fine	0.373 \| good	2.725 \| good	0.215 \| good
2025-06-03T21:00:00.000Z	66 \| moderate	16.785 \| fine	71.848 \| fine	56.32 \| fine	0.335 \| good	1.8 \| good	0.233 \| good
2025-06-03T22:00:00.000Z	66 \| moderate	17.075 \| fine	72.359 \| fine	51.515 \| good	0.388 \| good	3.709 \| good	0.27 \| good
2025-06-03T23:00:00.000Z	71 \| moderate	20.282 \| fine	65.497 \| fine	52.33 \| good	0.43 \| good	1.96 \| good	0.33 \| good
2025-06-04T00:00:00.000Z	69 \| moderate	18.695 \| fine	64.736 \| fine	48.762 \| good	0.391 \| good	1.616 \| good	0.257 \| good
2025-06-04T01:00:00.000Z	60 \| moderate	14.42 \| fine	68.757 \| fine	54.326 \| good	0.397 \| good	4.487 \| good	0.238 \| good
2025-06-04T02:00:00.000Z	62 \| moderate	15.045 \| fine	57.26 \| fine	51.822 \| good	0.451 \| good	5.193 \| good	0.263 \| good
2025-06-04T03:00:00.000Z	58 \| moderate	12.734 \| fine	57.103 \| fine	35.484 \| good	1.157 \| good	2.745 \| good	0.23 \| good
2025-06-04T04:00:00.000Z	73 \| moderate	21.201 \| fine	82.93 \| fine	50.274 \| good	0.398 \| good	3.168 \| good	0.208 \| good
2025-06-04T05:00:00.000Z	73 \| moderate	21.439 \| fine	54.621 \| good	48.857 \| good	0.432 \| good	3.146 \| good	0.208 \| good
2025-06-04T06:00:00.000Z	64 \| moderate	16.436 \| fine	61.814 \| fine	46.835 \| good	0.499 \| good	2.628 \| good	0.19 \| good
2025-06-04T07:00:00.000Z	75 \| moderate	22.038 \| fine	77.491 \| fine	44.925 \| good	0.388 \| good	2.483 \| good	0.257 \| good
2025-06-04T08:00:00.000Z	75 \| moderate	22.106 \| fine	87.345 \| fine	43.067 \| good	0.374 \| good	4.137 \| good	0.36 \| good
2025-06-04T09:00:00.000Z	71 \| moderate	20.004 \| fine	91.105 \| fine	43.29 \| good	0.43 \| good	2.775 \| good	0.441 \| good
2025-06-04T10:00:00.000Z	64 \| moderate	15.54 \| fine	46.026 \| good	42.543 \| good	0.536 \| good	4.769 \| good	0.441 \| good
2025-06-04T11:00:00.000Z	56 \| moderate	11.704 \| good	32.214 \| good	37.636 \| good	0.435 \| good	3.88 \| good	0.508 \| good
2025-06-04T12:00:00.000Z	60 \| moderate	13.849 \| fine	44.84 \| good	39.651 \| good	0.313 \| good	4.355 \| good	0.386 \| good
2025-06-04T13:00:00.000Z	49 \| good	9.364 \| good	42.023 \| good	19.479 \| good	0.949 \| good	7.202 \| good	0.276 \| good
2025-06-04T14:00:00.000Z	34 \| good	6.205 \| good	31.767 \| good	36.799 \| good	0.365 \| good	7.255 \| good	0.649 \| good
2025-06-04T15:00:00.000Z	51 \| moderate	8.475 \| good	54.956 \| good	35.734 \| good	0.281 \| good	9.055 \| good	0.659 \| good
2025-06-04T16:00:00.000Z	81 \| moderate	24.852 \| fine	107.612 \| fine	37.893 \| good	0.435 \| good	1.111 \| good	0.476 \| good
2025-06-04T17:00:00.000Z	71 \| moderate	20.262 \| fine	51.514 \| good	35.498 \| good	0.435 \| good	2.379 \| good	0.51 \| good
2025-06-04T18:00:00.000Z	90 \| moderate	29.934 \| fine	114.758 \| fine	31.585 \| good	0.47 \| good	5.324 \| good	0.589 \| good
2025-06-04T19:00:00.000Z	74 \| moderate	20.457 \| fine	100.959 \| fine	34.342 \| good	0.375 \| good	3.128 \| good	0.532 \| good
2025-06-04T20:00:00.000Z	74 \| moderate	20.457 \| fine	100.959 \| fine	34.342 \| good	0.375 \| good	3.128 \| good	0.532 \| good
2025-06-04T21:00:00.000Z	82 \| moderate	25.503 \| fine	110.967 \| fine	44.151 \| good	0.826 \| good	4.671 \| good	0.294 \| good
2025-06-04T22:00:00.000Z	82 \| moderate	25.526 \| fine	111.053 \| fine	42.967 \| good	1.433 \| good	8.423 \| good	0.283 \| good
2025-06-04T23:00:00.000Z	79 \| moderate	23.698 \| fine	103.035 \| fine	43.389 \| good	1.228 \| good	7.503 \| good	0.288 \| good
2025-06-05T00:00:00.000Z	75 \| moderate	21.652 \| fine	94.932 \| fine	41.58 \| good	1.022 \| good	6.583 \| good	0.293 \| good
2025-06-05T01:00:00.000Z	69 \| moderate	18.789 \| fine	83.015 \| fine	43.222 \| good	1.417 \| good	8.659 \| good	0.263 \| good
2025-06-05T02:00:00.000Z	64 \| moderate	16.288 \| fine	72.902 \| fine	44.548 \| good	1.191 \| good	7.505 \| good	0.266 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	16.231 \| fine	72.853 \| fine	43.524 \| good	0.965 \| good	6.351 \| good	0.268 \| good
2025-06-05T04:00:00.000Z	67 \| moderate	18.31 \| fine	80.951 \| fine	40.42 \| good	1.193 \| good	7.48 \| good	0.236 \| good
2025-06-05T05:00:00.000Z	73 \| moderate	20.88 \| fine	91.001 \| fine	35.507 \| good	0.995 \| good	6.411 \| good	0.235 \| good
2025-06-05T06:00:00.000Z	77 \| moderate	22.865 \| fine	100.744 \| fine	33.805 \| good	0.797 \| good	5.343 \| good	0.235 \| good
2025-06-05T07:00:00.000Z	82 \| moderate	26.237 \| fine	114.815 \| fine	31.51 \| good	1.08 \| good	5.454 \| good	0.215 \| good
2025-06-05T08:00:00.000Z	84 \| moderate	26.553 \| fine	115.01 \| fine	32.116 \| good	0.902 \| good	4.748 \| good	0.215 \| good
2025-06-05T09:00:00.000Z	81 \| moderate	24.973 \| fine	109.005 \| fine	28.883 \| good	0.724 \| good	4.041 \| good	0.214 \| good
2025-06-05T10:00:00.000Z	79 \| moderate	24.294 \| fine	106.721 \| fine	27.012 \| good	1.11 \| good	4.33 \| good	0.221 \| good
2025-06-05T11:00:00.000Z	75 \| moderate	21.744 \| fine	94.803 \| fine	26.191 \| good	0.929 \| good	3.861 \| good	0.223 \| good
2025-06-05T12:00:00.000Z	69 \| moderate	19.227 \| fine	84.946 \| fine	33.994 \| good	0.749 \| good	3.392 \| good	0.226 \| good
2025-06-05T13:00:00.000Z	69 \| moderate	18.556 \| fine	81.089 \| fine	38.847 \| good	1.176 \| good	3.317 \| good	0.236 \| good
2025-06-05T14:00:00.000Z	69 \| moderate	18.895 \| fine	82.991 \| fine	42.319 \| good	0.987 \| good	2.962 \| good	0.237 \| good
2025-06-05T15:00:00.000Z	77 \| moderate	23.058 \| fine	100.897 \| fine	49.492 \| good	0.799 \| good	2.607 \| good	0.237 \| good
2025-06-05T16:00:00.000Z	84 \| moderate	26.87 \| fine	116.909 \| fine	52.832 \| good	0.981 \| good	1.826 \| good	0.22 \| good
2025-06-05T17:00:00.000Z	94 \| moderate	31.687 \| fine	137.092 \| fine	54.008 \| good	0.842 \| good	1.682 \| good	0.22 \| good
2025-06-05T18:00:00.000Z	103 \| sensitive	36.348 \| moderate	159.091 \| moderate	54.773 \| good	0.704 \| good	1.539 \| good	0.22 \| good
2025-06-05T19:00:00.000Z	119 \| sensitive	42.741 \| moderate	190.939 \| moderate	54.987 \| good	1.07 \| good	2.247 \| good	0.22 \| good
2025-06-05T20:00:00.000Z	133 \| sensitive	48.499 \| moderate	219.01 \| moderate	54.853 \| good	0.952 \| good	2.109 \| good	0.221 \| good
2025-06-05T21:00:00.000Z	135 \| sensitive	49.294 \| moderate	222.93 \| moderate	53.539 \| good	0.834 \| good	1.97 \| good	0.221 \| good
2025-06-05T22:00:00.000Z	135 \| sensitive	49.444 \| moderate	222.962 \| moderate	51.681 \| good	1.341 \| good	5.842 \| good	0.243 \| good
2025-06-05T23:00:00.000Z	125 \| sensitive	45.287 \| moderate	202.923 \| moderate	47.624 \| good	1.159 \| good	5.403 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	132 \| sensitive	47.719 \| moderate	215.005 \| moderate	40.649 \| good	0.976 \| good	4.963 \| good	0.242 \| good
2025-06-06T01:00:00.000Z	129 \| sensitive	46.636 \| moderate	209.024 \| moderate	37.182 \| good	1.402 \| good	8.951 \| good	0.259 \| good
2025-06-06T02:00:00.000Z	129 \| sensitive	46.791 \| moderate	210.817 \| moderate	37.324 \| good	1.159 \| good	7.866 \| good	0.255 \| good
2025-06-06T03:00:00.000Z	122 \| sensitive	43.517 \| moderate	194.641 \| moderate	34.423 \| good	0.916 \| good	6.782 \| good	0.251 \| good
2025-06-06T04:00:00.000Z	112 \| sensitive	39.568 \| moderate	174.665 \| moderate	30.406 \| good	1.163 \| good	7.912 \| good	0.246 \| good
2025-06-06T05:00:00.000Z	107 \| sensitive	37.92 \| moderate	166.662 \| moderate	21.973 \| good	0.984 \| good	7.159 \| good	0.245 \| good
2025-06-06T06:00:00.000Z	98 \| moderate	34.242 \| fine	148.592 \| fine	19.305 \| good	0.804 \| good	6.405 \| good	0.243 \| good
2025-06-06T07:00:00.000Z	96 \| moderate	33.08 \| fine	142.695 \| fine	16.529 \| good	1.206 \| good	8.277 \| good	0.238 \| good
2025-06-06T08:00:00.000Z	99 \| moderate	34.717 \| fine	150.797 \| fine	17.128 \| good	1.05 \| good	7.737 \| good	0.238 \| good
2025-06-06T09:00:00.000Z	107 \| sensitive	37.791 \| moderate	165.103 \| moderate	17.453 \| good	0.895 \| good	7.196 \| good	0.239 \| good
2025-06-06T10:00:00.000Z	115 \| sensitive	41.326 \| moderate	183.139 \| moderate	19.208 \| good	1.458 \| good	8.163 \| good	0.24 \| good
2025-06-06T11:00:00.000Z	117 \| sensitive	41.98 \| moderate	187 \| moderate	15.313 \| good	1.287 \| good	7.389 \| good	0.241 \| good
2025-06-06T12:00:00.000Z	99 \| moderate	35.014 \| fine	151.578 \| fine	20.186 \| good	1.115 \| good	6.615 \| good	0.242 \| good
2025-06-06T13:00:00.000Z	79 \| moderate	23.781 \| fine	103.624 \| fine	28.614 \| good	1.962 \| good	5.982 \| good	0.253 \| good
2025-06-06T14:00:00.000Z	69 \| moderate	18.546 \| fine	81.58 \| fine	37.154 \| good	1.75 \| good	5.229 \| good	0.251 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	14.38 \| fine	65.188 \| fine	42.553 \| good	1.539 \| good	4.476 \| good	0.248 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.861 \| fine	61.529 \| fine	44.711 \| good	1.41 \| good	2.501 \| good	0.22 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	15.246 \| fine	67.581 \| fine	47.894 \| good	1.247 \| good	2.225 \| good	0.218 \| good
2025-06-06T18:00:00.000Z	62 \| moderate	14.995 \| fine	67.372 \| fine	52.278 \| good	1.083 \| good	1.949 \| good	0.216 \| good
2025-06-06T19:00:00.000Z	58 \| moderate	12.524 \| fine	57.201 \| fine	51.901 \| good	1.264 \| good	2.293 \| good	0.203 \| good
2025-06-06T20:00:00.000Z	58 \| moderate	12.822 \| fine	57.31 \| fine	51.353 \| good	1.127 \| good	2.092 \| good	0.201 \| good

Merrillville

Empower business decisions with accurate air quality data

Merrillville, Indiana air quality map: Real-time AQI near you

0.54ppm

How accurate is Indiana, USA air quality data?

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

Source: Ambee Data Sources

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Frequently asked questions

How frequently is the air quality data for Merrillville, Indiana updated?

Air quality data for Merrillville, Indiana is updated on an hourly basis.

When did Merrillville, Indiana experience the worst air quality in the last 24 hours?

The worst air quality in Merrillville, Indiana was recorded at 06:00:00 on 2025-06-04.

When did Merrillville, Indiana have its best air quality in the last 24 hours?

The best air quality in Merrillville, Indiana was recorded at 02:00:00 on 2025-06-04.

What is the real-time air quality index for Merrillville, Indiana?

The real-time air quality index in Merrillville, Indiana is 74, currently categorized as Moderate.

Which pollutant is found most often in Merrillville, Indiana?

The most common pollutant in Merrillville, Indiana is PM10.

What can I do if the air quality in Merrillville, Indiana is poor?

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

What are the current PM_2.5 levels in Merrillville, Indiana?

The measured PM_2.5 levels in Merrillville, Indiana at present are 20.457 μg/m³.

What are the current PM₁₀ levels at Merrillville, Indiana?

The current PM₁₀ levels in Merrillville, Indiana are 100.959 μg/m³.

What are the current carbon monoxide (CO) levels at Merrillville, Indiana?

The current carbon monoxide (CO) level in Merrillville, Indiana is 0.532 ppm.

What are the current sulfur dioxide (SO₂) levels at Merrillville, Indiana?

The current sulfur dioxide (SO₂) levels in Merrillville, Indiana are 0.375 ppb.

What are the current ozone (O₃) levels at Merrillville, Indiana?

The current ozone (O₃) levels at Merrillville, Indiana is 34.342 ppm.

What are the current nitrogen dioxide (NO₂) levels at Merrillville, Indiana?

The current nitrogen dioxide (NO₂) levels at Merrillville, Indiana is 3.128 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2025-06-02T21:00:00.000Z	52 \| moderate	9.932 \| good	41.792 \| good	52.165 \| good	0.856 \| good	2.66 \| good	0.184 \| good
2025-06-02T22:00:00.000Z	58 \| moderate	9.505 \| good	47.63 \| good	56.699 \| fine	0.676 \| good	2.038 \| good	0.166 \| good
2025-06-02T23:00:00.000Z	67 \| moderate	12.468 \| fine	53.843 \| good	59.505 \| fine	0.501 \| good	1.902 \| good	0.203 \| good
2025-06-03T00:00:00.000Z	67 \| moderate	13.111 \| fine	52.335 \| good	60.017 \| fine	0.499 \| good	3.281 \| good	0.178 \| good
2025-06-03T01:00:00.000Z	60 \| moderate	13.618 \| fine	61.235 \| fine	55.54 \| fine	0.428 \| good	5.326 \| good	0.196 \| good
2025-06-03T02:00:00.000Z	56 \| moderate	12.026 \| good	50.381 \| good	48.112 \| good	0.523 \| good	9.768 \| good	0.231 \| good
2025-06-03T03:00:00.000Z	66 \| moderate	16.976 \| fine	78.693 \| fine	47.126 \| good	0.562 \| good	12.04 \| good	0.36 \| good
2025-06-03T04:00:00.000Z	66 \| moderate	17.312 \| fine	77.569 \| fine	45.878 \| good	0.584 \| good	8.562 \| good	0.36 \| good
2025-06-03T05:00:00.000Z	56 \| moderate	12.346 \| fine	38.931 \| good	43.542 \| good	0.563 \| good	11.133 \| good	0.377 \| good
2025-06-03T06:00:00.000Z	62 \| moderate	14.986 \| fine	41.79 \| good	40.824 \| good	0.579 \| good	10.473 \| good	0.324 \| good
2025-06-03T07:00:00.000Z	62 \| moderate	15.311 \| fine	55.371 \| fine	42.141 \| good	0.505 \| good	6.911 \| good	0.307 \| good
2025-06-03T08:00:00.000Z	62 \| moderate	14.903 \| fine	55.609 \| fine	43.515 \| good	0.607 \| good	9.779 \| good	0.288 \| good
2025-06-03T09:00:00.000Z	56 \| moderate	12.019 \| good	41.323 \| good	42.28 \| good	0.658 \| good	6.311 \| good	0.286 \| good
2025-06-03T10:00:00.000Z	56 \| moderate	12.082 \| good	44.813 \| good	42.105 \| good	0.631 \| good	9.627 \| good	0.321 \| good
2025-06-03T11:00:00.000Z	60 \| moderate	13.826 \| fine	57.251 \| fine	43.232 \| good	0.694 \| good	13.047 \| good	0.311 \| good
2025-06-03T12:00:00.000Z	54 \| moderate	11.204 \| good	50.753 \| good	43.773 \| good	0.73 \| good	11.758 \| good	0.329 \| good
2025-06-03T13:00:00.000Z	58 \| moderate	13.371 \| fine	61.312 \| fine	40.027 \| good	0.79 \| good	11.047 \| good	0.312 \| good
2025-06-03T14:00:00.000Z	54 \| moderate	10.822 \| good	45.264 \| good	35.971 \| good	0.784 \| good	10.231 \| good	0.312 \| good
2025-06-03T15:00:00.000Z	54 \| moderate	11.176 \| good	50.051 \| good	40.513 \| good	0.904 \| good	7.233 \| good	0.232 \| good
2025-06-03T16:00:00.000Z	60 \| moderate	13.611 \| fine	62.048 \| fine	39.628 \| good	0.769 \| good	5.984 \| good	0.251 \| good
2025-06-03T17:00:00.000Z	58 \| moderate	13.087 \| fine	60.402 \| fine	43.98 \| good	0.526 \| good	2.857 \| good	0.252 \| good
2025-06-03T18:00:00.000Z	58 \| moderate	12.626 \| fine	55.856 \| fine	52.347 \| good	0.386 \| good	1.946 \| good	0.252 \| good
2025-06-03T19:00:00.000Z	58 \| moderate	12.65 \| fine	56.046 \| fine	55.716 \| fine	0.424 \| good	3.535 \| good	0.233 \| good
2025-06-03T20:00:00.000Z	64 \| moderate	15.638 \| fine	76.333 \| fine	55.603 \| fine	0.373 \| good	2.725 \| good	0.215 \| good
2025-06-03T21:00:00.000Z	66 \| moderate	16.785 \| fine	71.848 \| fine	56.32 \| fine	0.335 \| good	1.8 \| good	0.233 \| good
2025-06-03T22:00:00.000Z	66 \| moderate	17.075 \| fine	72.359 \| fine	51.515 \| good	0.388 \| good	3.709 \| good	0.27 \| good
2025-06-03T23:00:00.000Z	71 \| moderate	20.282 \| fine	65.497 \| fine	52.33 \| good	0.43 \| good	1.96 \| good	0.33 \| good
2025-06-04T00:00:00.000Z	69 \| moderate	18.695 \| fine	64.736 \| fine	48.762 \| good	0.391 \| good	1.616 \| good	0.257 \| good
2025-06-04T01:00:00.000Z	60 \| moderate	14.42 \| fine	68.757 \| fine	54.326 \| good	0.397 \| good	4.487 \| good	0.238 \| good
2025-06-04T02:00:00.000Z	62 \| moderate	15.045 \| fine	57.26 \| fine	51.822 \| good	0.451 \| good	5.193 \| good	0.263 \| good
2025-06-04T03:00:00.000Z	58 \| moderate	12.734 \| fine	57.103 \| fine	35.484 \| good	1.157 \| good	2.745 \| good	0.23 \| good
2025-06-04T04:00:00.000Z	73 \| moderate	21.201 \| fine	82.93 \| fine	50.274 \| good	0.398 \| good	3.168 \| good	0.208 \| good
2025-06-04T05:00:00.000Z	73 \| moderate	21.439 \| fine	54.621 \| good	48.857 \| good	0.432 \| good	3.146 \| good	0.208 \| good
2025-06-04T06:00:00.000Z	64 \| moderate	16.436 \| fine	61.814 \| fine	46.835 \| good	0.499 \| good	2.628 \| good	0.19 \| good
2025-06-04T07:00:00.000Z	75 \| moderate	22.038 \| fine	77.491 \| fine	44.925 \| good	0.388 \| good	2.483 \| good	0.257 \| good
2025-06-04T08:00:00.000Z	75 \| moderate	22.106 \| fine	87.345 \| fine	43.067 \| good	0.374 \| good	4.137 \| good	0.36 \| good
2025-06-04T09:00:00.000Z	71 \| moderate	20.004 \| fine	91.105 \| fine	43.29 \| good	0.43 \| good	2.775 \| good	0.441 \| good
2025-06-04T10:00:00.000Z	64 \| moderate	15.54 \| fine	46.026 \| good	42.543 \| good	0.536 \| good	4.769 \| good	0.441 \| good
2025-06-04T11:00:00.000Z	56 \| moderate	11.704 \| good	32.214 \| good	37.636 \| good	0.435 \| good	3.88 \| good	0.508 \| good
2025-06-04T12:00:00.000Z	60 \| moderate	13.849 \| fine	44.84 \| good	39.651 \| good	0.313 \| good	4.355 \| good	0.386 \| good
2025-06-04T13:00:00.000Z	49 \| good	9.364 \| good	42.023 \| good	19.479 \| good	0.949 \| good	7.202 \| good	0.276 \| good
2025-06-04T14:00:00.000Z	34 \| good	6.205 \| good	31.767 \| good	36.799 \| good	0.365 \| good	7.255 \| good	0.649 \| good
2025-06-04T15:00:00.000Z	51 \| moderate	8.475 \| good	54.956 \| good	35.734 \| good	0.281 \| good	9.055 \| good	0.659 \| good
2025-06-04T16:00:00.000Z	81 \| moderate	24.852 \| fine	107.612 \| fine	37.893 \| good	0.435 \| good	1.111 \| good	0.476 \| good
2025-06-04T17:00:00.000Z	71 \| moderate	20.262 \| fine	51.514 \| good	35.498 \| good	0.435 \| good	2.379 \| good	0.51 \| good
2025-06-04T18:00:00.000Z	90 \| moderate	29.934 \| fine	114.758 \| fine	31.585 \| good	0.47 \| good	5.324 \| good	0.589 \| good
2025-06-04T19:00:00.000Z	74 \| moderate	20.457 \| fine	100.959 \| fine	34.342 \| good	0.375 \| good	3.128 \| good	0.532 \| good
2025-06-04T20:00:00.000Z	74 \| moderate	20.457 \| fine	100.959 \| fine	34.342 \| good	0.375 \| good	3.128 \| good	0.532 \| good
2025-06-04T21:00:00.000Z	82 \| moderate	25.503 \| fine	110.967 \| fine	44.151 \| good	0.826 \| good	4.671 \| good	0.294 \| good
2025-06-04T22:00:00.000Z	82 \| moderate	25.526 \| fine	111.053 \| fine	42.967 \| good	1.433 \| good	8.423 \| good	0.283 \| good
2025-06-04T23:00:00.000Z	79 \| moderate	23.698 \| fine	103.035 \| fine	43.389 \| good	1.228 \| good	7.503 \| good	0.288 \| good
2025-06-05T00:00:00.000Z	75 \| moderate	21.652 \| fine	94.932 \| fine	41.58 \| good	1.022 \| good	6.583 \| good	0.293 \| good
2025-06-05T01:00:00.000Z	69 \| moderate	18.789 \| fine	83.015 \| fine	43.222 \| good	1.417 \| good	8.659 \| good	0.263 \| good
2025-06-05T02:00:00.000Z	64 \| moderate	16.288 \| fine	72.902 \| fine	44.548 \| good	1.191 \| good	7.505 \| good	0.266 \| good
2025-06-05T03:00:00.000Z	64 \| moderate	16.231 \| fine	72.853 \| fine	43.524 \| good	0.965 \| good	6.351 \| good	0.268 \| good
2025-06-05T04:00:00.000Z	67 \| moderate	18.31 \| fine	80.951 \| fine	40.42 \| good	1.193 \| good	7.48 \| good	0.236 \| good
2025-06-05T05:00:00.000Z	73 \| moderate	20.88 \| fine	91.001 \| fine	35.507 \| good	0.995 \| good	6.411 \| good	0.235 \| good
2025-06-05T06:00:00.000Z	77 \| moderate	22.865 \| fine	100.744 \| fine	33.805 \| good	0.797 \| good	5.343 \| good	0.235 \| good
2025-06-05T07:00:00.000Z	82 \| moderate	26.237 \| fine	114.815 \| fine	31.51 \| good	1.08 \| good	5.454 \| good	0.215 \| good
2025-06-05T08:00:00.000Z	84 \| moderate	26.553 \| fine	115.01 \| fine	32.116 \| good	0.902 \| good	4.748 \| good	0.215 \| good
2025-06-05T09:00:00.000Z	81 \| moderate	24.973 \| fine	109.005 \| fine	28.883 \| good	0.724 \| good	4.041 \| good	0.214 \| good
2025-06-05T10:00:00.000Z	79 \| moderate	24.294 \| fine	106.721 \| fine	27.012 \| good	1.11 \| good	4.33 \| good	0.221 \| good
2025-06-05T11:00:00.000Z	75 \| moderate	21.744 \| fine	94.803 \| fine	26.191 \| good	0.929 \| good	3.861 \| good	0.223 \| good
2025-06-05T12:00:00.000Z	69 \| moderate	19.227 \| fine	84.946 \| fine	33.994 \| good	0.749 \| good	3.392 \| good	0.226 \| good
2025-06-05T13:00:00.000Z	69 \| moderate	18.556 \| fine	81.089 \| fine	38.847 \| good	1.176 \| good	3.317 \| good	0.236 \| good
2025-06-05T14:00:00.000Z	69 \| moderate	18.895 \| fine	82.991 \| fine	42.319 \| good	0.987 \| good	2.962 \| good	0.237 \| good
2025-06-05T15:00:00.000Z	77 \| moderate	23.058 \| fine	100.897 \| fine	49.492 \| good	0.799 \| good	2.607 \| good	0.237 \| good
2025-06-05T16:00:00.000Z	84 \| moderate	26.87 \| fine	116.909 \| fine	52.832 \| good	0.981 \| good	1.826 \| good	0.22 \| good
2025-06-05T17:00:00.000Z	94 \| moderate	31.687 \| fine	137.092 \| fine	54.008 \| good	0.842 \| good	1.682 \| good	0.22 \| good
2025-06-05T18:00:00.000Z	103 \| sensitive	36.348 \| moderate	159.091 \| moderate	54.773 \| good	0.704 \| good	1.539 \| good	0.22 \| good
2025-06-05T19:00:00.000Z	119 \| sensitive	42.741 \| moderate	190.939 \| moderate	54.987 \| good	1.07 \| good	2.247 \| good	0.22 \| good
2025-06-05T20:00:00.000Z	133 \| sensitive	48.499 \| moderate	219.01 \| moderate	54.853 \| good	0.952 \| good	2.109 \| good	0.221 \| good
2025-06-05T21:00:00.000Z	135 \| sensitive	49.294 \| moderate	222.93 \| moderate	53.539 \| good	0.834 \| good	1.97 \| good	0.221 \| good
2025-06-05T22:00:00.000Z	135 \| sensitive	49.444 \| moderate	222.962 \| moderate	51.681 \| good	1.341 \| good	5.842 \| good	0.243 \| good
2025-06-05T23:00:00.000Z	125 \| sensitive	45.287 \| moderate	202.923 \| moderate	47.624 \| good	1.159 \| good	5.403 \| good	0.243 \| good
2025-06-06T00:00:00.000Z	132 \| sensitive	47.719 \| moderate	215.005 \| moderate	40.649 \| good	0.976 \| good	4.963 \| good	0.242 \| good
2025-06-06T01:00:00.000Z	129 \| sensitive	46.636 \| moderate	209.024 \| moderate	37.182 \| good	1.402 \| good	8.951 \| good	0.259 \| good
2025-06-06T02:00:00.000Z	129 \| sensitive	46.791 \| moderate	210.817 \| moderate	37.324 \| good	1.159 \| good	7.866 \| good	0.255 \| good
2025-06-06T03:00:00.000Z	122 \| sensitive	43.517 \| moderate	194.641 \| moderate	34.423 \| good	0.916 \| good	6.782 \| good	0.251 \| good
2025-06-06T04:00:00.000Z	112 \| sensitive	39.568 \| moderate	174.665 \| moderate	30.406 \| good	1.163 \| good	7.912 \| good	0.246 \| good
2025-06-06T05:00:00.000Z	107 \| sensitive	37.92 \| moderate	166.662 \| moderate	21.973 \| good	0.984 \| good	7.159 \| good	0.245 \| good
2025-06-06T06:00:00.000Z	98 \| moderate	34.242 \| fine	148.592 \| fine	19.305 \| good	0.804 \| good	6.405 \| good	0.243 \| good
2025-06-06T07:00:00.000Z	96 \| moderate	33.08 \| fine	142.695 \| fine	16.529 \| good	1.206 \| good	8.277 \| good	0.238 \| good
2025-06-06T08:00:00.000Z	99 \| moderate	34.717 \| fine	150.797 \| fine	17.128 \| good	1.05 \| good	7.737 \| good	0.238 \| good
2025-06-06T09:00:00.000Z	107 \| sensitive	37.791 \| moderate	165.103 \| moderate	17.453 \| good	0.895 \| good	7.196 \| good	0.239 \| good
2025-06-06T10:00:00.000Z	115 \| sensitive	41.326 \| moderate	183.139 \| moderate	19.208 \| good	1.458 \| good	8.163 \| good	0.24 \| good
2025-06-06T11:00:00.000Z	117 \| sensitive	41.98 \| moderate	187 \| moderate	15.313 \| good	1.287 \| good	7.389 \| good	0.241 \| good
2025-06-06T12:00:00.000Z	99 \| moderate	35.014 \| fine	151.578 \| fine	20.186 \| good	1.115 \| good	6.615 \| good	0.242 \| good
2025-06-06T13:00:00.000Z	79 \| moderate	23.781 \| fine	103.624 \| fine	28.614 \| good	1.962 \| good	5.982 \| good	0.253 \| good
2025-06-06T14:00:00.000Z	69 \| moderate	18.546 \| fine	81.58 \| fine	37.154 \| good	1.75 \| good	5.229 \| good	0.251 \| good
2025-06-06T15:00:00.000Z	60 \| moderate	14.38 \| fine	65.188 \| fine	42.553 \| good	1.539 \| good	4.476 \| good	0.248 \| good
2025-06-06T16:00:00.000Z	60 \| moderate	13.861 \| fine	61.529 \| fine	44.711 \| good	1.41 \| good	2.501 \| good	0.22 \| good
2025-06-06T17:00:00.000Z	62 \| moderate	15.246 \| fine	67.581 \| fine	47.894 \| good	1.247 \| good	2.225 \| good	0.218 \| good
2025-06-06T18:00:00.000Z	62 \| moderate	14.995 \| fine	67.372 \| fine	52.278 \| good	1.083 \| good	1.949 \| good	0.216 \| good
2025-06-06T19:00:00.000Z	58 \| moderate	12.524 \| fine	57.201 \| fine	51.901 \| good	1.264 \| good	2.293 \| good	0.203 \| good
2025-06-06T20:00:00.000Z	58 \| moderate	12.822 \| fine	57.31 \| fine	51.353 \| good	1.127 \| good	2.092 \| good	0.201 \| good

Live air quality index in Merrillville, Indiana today

Major air pollutants in Merrillville, Indiana

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Merrillville, Indiana air quality forecast and history

Empower business decisions with accurate air quality data

Merrillville, Indiana air quality map: Real-time AQI near you

Air quality in nearby cities

Crown Point, Indiana

Hobart, Indiana

Griffith, Indiana

Schererville, Indiana

St. John, Indiana

Highland Town, Indiana

How accurate is Indiana, USA air quality data?

Air quality levels in US

Frequently asked questions

How frequently is the air quality data for Merrillville, Indiana updated?

When did Merrillville, Indiana experience the worst air quality in the last 24 hours?

When did Merrillville, Indiana have its best air quality in the last 24 hours?

What is the real-time air quality index for Merrillville, Indiana?

Which pollutant is found most often in Merrillville, Indiana?

What can I do if the air quality in Merrillville, Indiana is poor?

What are the current PM2.5 levels in Merrillville, Indiana?

What are the current PM10 levels at Merrillville, Indiana?

What are the current carbon monoxide (CO) levels at Merrillville, Indiana?

What are the current sulfur dioxide (SO2) levels at Merrillville, Indiana?

What are the current ozone (O3) levels at Merrillville, Indiana?

What are the current nitrogen dioxide (NO2) levels at Merrillville, Indiana?

Particulate Matter_2.5 (PM_2.5)

Particulate Matter₁₀ (PM₁₀)

Ozone (O₃)

Sulfur Dioxide (SO₂)

Nitrogen Dioxide (NO₂)

What are the current PM_2.5 levels in Merrillville, Indiana?

What are the current PM₁₀ levels at Merrillville, Indiana?

What are the current sulfur dioxide (SO₂) levels at Merrillville, Indiana?

What are the current ozone (O₃) levels at Merrillville, Indiana?

What are the current nitrogen dioxide (NO₂) levels at Merrillville, Indiana?