What are the current PM10 levels at Melrose, Massachusetts?

The current PM10 levels in Melrose, Massachusetts are 5.657 μg/m3.

What are the current sulfur dioxide (SO2) levels at Melrose, Massachusetts?

The current sulfur dioxide (SO2) levels in Melrose, Massachusetts are 1.021 ppb.

What are the current ozone (O3) levels at Melrose, Massachusetts?

The current ozone (O3) levels at Melrose, Massachusetts is 23.291 ppm.

What are the current nitrogen dioxide (NO2) levels at Melrose, Massachusetts?

The current nitrogen dioxide (NO2) levels at Melrose, Massachusetts is 4.436 ppb.

Real-time air quality index in Melrose, Massachusetts today

Q: What are the current PM2.5 levels in Melrose, Massachusetts?

The measured PM2.5 levels in Melrose, Massachusetts at present are 1.412 μg/m3.

Stay updated with real-time air quality in Melrose, Massachusetts 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

Melrose, Massachusetts

Last updated: ... (Local time)

Common air pollutants in Melrose, Massachusetts

Good

Fine

Moderate

Poor

Very poor

Hazardous

Particulate Matter_2.5 (PM_2.5)

1.41 μg/m³

12.1

35.5

55.5

250.5

500.5+

Particulate Matter₁₀ (PM₁₀)

5.66 μg/m³

155

255

425

605+

Ozone (O₃)

23.29 ppb

201

201+

Sulfur Dioxide (SO₂)

1.02 ppb

186

605

1005+

Nitrogen Dioxide (NO₂)

4.44 ppb

101

361

1250

2050+

Carbon Monoxide (CO)

0.27 ppm

4.5

9.5

12.5

230.5

50.5+

Pollen Level

Low

Melrose, Massachusetts

Get Live Pollen Counts

Melrose, Massachusetts

Scroll To Air Quality Map

Track live Melrose, Massachusetts air quality forecast and history

Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-26T23:00:00.000Z	32 \| good	4.867 \| good	18.915 \| good	34.958 \| good	0.795 \| good	2.085 \| good	0.148 \| good
2026-09-27T00:00:00.000Z	33 \| good	4.806 \| good	18.54 \| good	36.345 \| good	0.746 \| good	2.338 \| good	0.148 \| good
2026-09-27T01:00:00.000Z	32 \| good	4.986 \| good	19.484 \| good	35.464 \| good	0.828 \| good	3.199 \| good	0.148 \| good
2026-09-27T02:00:00.000Z	33 \| good	5.632 \| good	21.87 \| good	36.362 \| good	0.835 \| good	3.628 \| good	0.146 \| good
2026-09-27T03:00:00.000Z	31 \| good	2.606 \| good	10.656 \| good	33.3 \| good	0.143 \| good	1.375 \| good	0.132 \| good
2026-09-27T04:00:00.000Z	33 \| good	5.736 \| good	22.666 \| good	35.967 \| good	0.823 \| good	2.789 \| good	0.148 \| good
2026-09-27T05:00:00.000Z	33 \| good	5.654 \| good	21.854 \| good	35.255 \| good	0.468 \| good	2.366 \| good	0.148 \| good
2026-09-27T06:00:00.000Z	31 \| good	4.961 \| good	18.938 \| good	33.026 \| good	0.796 \| good	2.358 \| good	0.14 \| good
2026-09-27T07:00:00.000Z	30 \| good	4.961 \| good	18.938 \| good	32 \| good	0.796 \| good	2.361 \| good	0.14 \| good
2026-09-27T08:00:00.000Z	29 \| good	4.247 \| good	16.187 \| good	31.36 \| good	0.824 \| good	0.952 \| good	0.14 \| good
2026-09-27T09:00:00.000Z	29 \| good	4.072 \| good	15.552 \| good	31.137 \| good	0.818 \| good	1.849 \| good	0.14 \| good
2026-09-27T10:00:00.000Z	29 \| good	3.206 \| good	11.878 \| good	31.291 \| good	0.785 \| good	2.275 \| good	0.14 \| good
2026-09-27T11:00:00.000Z	29 \| good	2.921 \| good	10.878 \| good	30.623 \| good	0.796 \| good	3.001 \| good	0.14 \| good
2026-09-27T12:00:00.000Z	30 \| good	2.822 \| good	10.712 \| good	31.506 \| good	0.818 \| good	3.365 \| good	0.14 \| good
2026-09-27T13:00:00.000Z	29 \| good	2.822 \| good	10.712 \| good	30.647 \| good	0.818 \| good	3.377 \| good	0.14 \| good
2026-09-27T14:00:00.000Z	28 \| good	2.293 \| good	8.353 \| good	29.814 \| good	0.817 \| good	3.479 \| good	0.146 \| good
2026-09-27T15:00:00.000Z	29 \| good	1.765 \| good	6.59 \| good	30.639 \| good	0.823 \| good	1.922 \| good	0.146 \| good
2026-09-27T16:00:00.000Z	28 \| good	1.459 \| good	5.17 \| good	30.121 \| good	0.775 \| good	3.378 \| good	0.152 \| good
2026-09-27T17:00:00.000Z	28 \| good	1.541 \| good	5.59 \| good	29.547 \| good	0.818 \| good	3.408 \| good	0.158 \| good
2026-09-27T18:00:00.000Z	27 \| good	1.898 \| good	7.154 \| good	29.045 \| good	0.825 \| good	3.65 \| good	0.152 \| good
2026-09-27T19:00:00.000Z	27 \| good	2.304 \| good	8.668 \| good	28.908 \| good	0.825 \| good	3.695 \| good	0.152 \| good
2026-09-27T20:00:00.000Z	27 \| good	2.374 \| good	9.208 \| good	29.2 \| good	0.808 \| good	4.084 \| good	0.146 \| good
2026-09-27T21:00:00.000Z	27 \| good	2.266 \| good	8.867 \| good	29.498 \| good	0.773 \| good	4.241 \| good	0.146 \| good
2026-09-27T22:00:00.000Z	26 \| good	2.052 \| good	7.518 \| good	28.465 \| good	0.83 \| good	4.338 \| good	0.146 \| good
2026-09-27T23:00:00.000Z	28 \| good	1.827 \| good	6.756 \| good	29.904 \| good	0.823 \| good	4.676 \| good	0.146 \| good
2026-09-28T00:00:00.000Z	27 \| good	1.617 \| good	6.086 \| good	29.095 \| good	0.768 \| good	4.846 \| good	0.146 \| good
2026-09-28T01:00:00.000Z	27 \| good	1.913 \| good	6.812 \| good	28.719 \| good	0.779 \| good	2.459 \| good	0.146 \| good
2026-09-28T02:00:00.000Z	26 \| good	3.537 \| good	13.398 \| good	28.415 \| good	0.788 \| good	2.047 \| good	0.146 \| good
2026-09-28T03:00:00.000Z	33 \| good	5.73 \| good	24.755 \| good	28.193 \| good	0.149 \| good	2.671 \| good	0.13 \| good
2026-09-28T04:00:00.000Z	27 \| good	4.651 \| good	17.382 \| good	29.18 \| good	0.789 \| good	1.829 \| good	0.146 \| good
2026-09-28T05:00:00.000Z	27 \| good	4.61 \| good	17.702 \| good	28.823 \| good	0.783 \| good	1.473 \| good	0.14 \| good
2026-09-28T06:00:00.000Z	27 \| good	4.094 \| good	15.679 \| good	29.171 \| good	0.795 \| good	1.239 \| good	0.14 \| good
2026-09-28T07:00:00.000Z	28 \| good	4.094 \| good	15.679 \| good	30.011 \| good	0.795 \| good	1.242 \| good	0.14 \| good
2026-09-28T08:00:00.000Z	28 \| good	3.569 \| good	13.32 \| good	29.519 \| good	0.795 \| good	1.082 \| good	0.14 \| good
2026-09-28T09:00:00.000Z	26 \| good	2.403 \| good	8.386 \| good	28.311 \| good	0.728 \| good	1.498 \| good	0.146 \| good
2026-09-28T10:00:00.000Z	27 \| good	2.138 \| good	7.624 \| good	28.859 \| good	0.782 \| good	2.115 \| good	0.152 \| good
2026-09-28T11:00:00.000Z	27 \| good	1.968 \| good	7.203 \| good	28.809 \| good	0.794 \| good	2.832 \| good	0.152 \| good
2026-09-28T12:00:00.000Z	26 \| good	1.759 \| good	6.59 \| good	27.807 \| good	0.785 \| good	3.9 \| good	0.158 \| good
2026-09-28T13:00:00.000Z	25 \| good	1.759 \| good	6.59 \| good	26.91 \| good	0.786 \| good	3.98 \| good	0.164 \| good
2026-09-28T14:00:00.000Z	26 \| good	1.434 \| good	5.512 \| good	27.698 \| good	1.021 \| good	5.888 \| good	0.214 \| good
2026-09-28T15:00:00.000Z	25 \| good	1.318 \| good	5.08 \| good	26.965 \| good	1.025 \| good	5.237 \| good	0.269 \| good
2026-09-28T16:00:00.000Z	25 \| good	1.285 \| good	4.809 \| good	26.952 \| good	1.028 \| good	5.033 \| good	0.198 \| good
2026-09-28T17:00:00.000Z	25 \| good	1.285 \| good	4.809 \| good	26.9 \| good	1.043 \| good	3.913 \| good	0.206 \| good
2026-09-28T18:00:00.000Z	24 \| good	1.362 \| good	5.184 \| good	25.953 \| good	1.029 \| good	3.955 \| good	0.206 \| good
2026-09-28T19:00:00.000Z	24 \| good	1.404 \| good	5.184 \| good	26.344 \| good	1.016 \| good	3.287 \| good	0.269 \| good
2026-09-28T20:00:00.000Z	22 \| good	1.581 \| good	6.558 \| good	24.328 \| good	1.063 \| good	4.255 \| good	0.275 \| good
2026-09-28T21:00:00.000Z	21 \| good	1.465 \| good	5.881 \| good	23.202 \| good	1.028 \| good	4.535 \| good	0.275 \| good
2026-09-28T22:00:00.000Z	20 \| good	1.1 \| good	4.497 \| good	22.463 \| good	1.032 \| good	3.259 \| good	0.269 \| good
2026-09-28T22:00:00.000Z	21 \| good	1.412 \| good	5.657 \| good	23.291 \| good	1.021 \| good	4.436 \| good	0.274 \| good
2026-09-28T23:00:00.000Z	22 \| good	3.988 \| good	17.317 \| good	22.91 \| good	0.3 \| good	8.915 \| good	0.177 \| good
2026-09-29T00:00:00.000Z	27 \| good	5.072 \| good	21.943 \| good	23.81 \| good	0.325 \| good	8.829 \| good	0.173 \| good
2026-09-29T01:00:00.000Z	27 \| good	5.109 \| good	22 \| good	21.774 \| good	0.354 \| good	9.261 \| good	0.173 \| good
2026-09-29T02:00:00.000Z	27 \| good	4.94 \| good	21.304 \| good	19.741 \| good	0.381 \| good	10.076 \| good	0.174 \| good
2026-09-29T03:00:00.000Z	27 \| good	4.723 \| good	20.624 \| good	18.405 \| good	0.391 \| good	10.013 \| good	0.174 \| good
2026-09-29T04:00:00.000Z	22 \| good	4.068 \| good	17.971 \| good	17.744 \| good	0.38 \| good	8.814 \| good	0.172 \| good
2026-09-29T05:00:00.000Z	19 \| good	3.365 \| good	14.805 \| good	19.683 \| good	0.362 \| good	7.383 \| good	0.167 \| good
2026-09-29T06:00:00.000Z	20 \| good	2.827 \| good	11.696 \| good	21.962 \| good	0.335 \| good	6.206 \| good	0.162 \| good
2026-09-29T07:00:00.000Z	21 \| good	2.801 \| good	11.639 \| good	22.858 \| good	0.306 \| good	5.225 \| good	0.157 \| good
2026-09-29T08:00:00.000Z	21 \| good	2.845 \| good	11.748 \| good	22.539 \| good	0.276 \| good	4.275 \| good	0.153 \| good
2026-09-29T09:00:00.000Z	19 \| good	3.356 \| good	14.929 \| good	19.666 \| good	0.259 \| good	3.902 \| good	0.151 \| good
2026-09-29T10:00:00.000Z	22 \| good	3.706 \| good	16.199 \| good	17.409 \| good	0.256 \| good	4.248 \| good	0.151 \| good
2026-09-29T11:00:00.000Z	22 \| good	4.049 \| good	17.744 \| good	13.396 \| good	0.271 \| good	6.418 \| good	0.163 \| good
2026-09-29T12:00:00.000Z	22 \| good	3.775 \| good	16.776 \| good	12.644 \| good	0.286 \| good	7.828 \| good	0.184 \| good
2026-09-29T13:00:00.000Z	22 \| good	3.999 \| good	17.54 \| good	14.063 \| good	0.287 \| good	6.824 \| good	0.188 \| good
2026-09-29T14:00:00.000Z	16 \| good	3.221 \| good	14.151 \| good	16.475 \| good	0.279 \| good	5.016 \| good	0.178 \| good
2026-09-29T15:00:00.000Z	20 \| good	2.526 \| good	10.266 \| good	21.816 \| good	0.264 \| good	3.396 \| good	0.164 \| good
2026-09-29T16:00:00.000Z	24 \| good	2.471 \| good	10.104 \| good	26.452 \| good	0.268 \| good	2.802 \| good	0.157 \| good
2026-09-29T17:00:00.000Z	26 \| good	2.877 \| good	11.517 \| good	28.061 \| good	0.266 \| good	2.587 \| good	0.155 \| good
2026-09-29T18:00:00.000Z	25 \| good	3.458 \| good	15.274 \| good	26.822 \| good	0.268 \| good	2.682 \| good	0.156 \| good
2026-09-29T19:00:00.000Z	27 \| good	4.993 \| good	21.559 \| good	20.492 \| good	0.269 \| good	2.761 \| good	0.157 \| good
2026-09-29T20:00:00.000Z	38 \| good	7.237 \| good	31.887 \| good	17.03 \| good	0.282 \| good	2.882 \| good	0.158 \| good
2026-09-29T21:00:00.000Z	44 \| good	8.476 \| good	37.13 \| good	16.952 \| good	0.319 \| good	4.935 \| good	0.175 \| good
2026-09-29T22:00:00.000Z	49 \| good	9.127 \| good	40.451 \| good	15.467 \| good	0.366 \| good	8.745 \| good	0.203 \| good
2026-09-29T23:00:00.000Z	49 \| good	9.102 \| good	40.258 \| good	13.494 \| good	0.43 \| good	14.016 \| good	0.235 \| good
2026-09-30T00:00:00.000Z	52 \| moderate	10.273 \| good	45.588 \| good	13.476 \| good	0.477 \| good	15.104 \| good	0.24 \| good
2026-09-30T01:00:00.000Z	52 \| moderate	10.135 \| good	45.14 \| good	13.115 \| good	0.503 \| good	14.348 \| good	0.232 \| good
2026-09-30T02:00:00.000Z	52 \| moderate	9.545 \| good	42.306 \| good	12.918 \| good	0.523 \| good	13.298 \| good	0.224 \| good
2026-09-30T03:00:00.000Z	44 \| good	7.924 \| good	34.811 \| good	14.891 \| good	0.534 \| good	12.342 \| good	0.219 \| good
2026-09-30T04:00:00.000Z	33 \| good	6.45 \| good	28.757 \| good	19.176 \| good	0.529 \| good	10.964 \| good	0.215 \| good
2026-09-30T05:00:00.000Z	22 \| good	4.5 \| good	19.481 \| good	19.232 \| good	0.52 \| good	9.859 \| good	0.209 \| good
2026-09-30T06:00:00.000Z	22 \| good	3.911 \| good	16.978 \| good	18.203 \| good	0.512 \| good	9.371 \| good	0.206 \| good
2026-09-30T07:00:00.000Z	27 \| good	4.738 \| good	20.598 \| good	18.595 \| good	0.504 \| good	9.453 \| good	0.205 \| good
2026-09-30T08:00:00.000Z	27 \| good	4.974 \| good	21.498 \| good	18.398 \| good	0.498 \| good	10.093 \| good	0.209 \| good
2026-09-30T09:00:00.000Z	22 \| good	3.621 \| good	16.056 \| good	13.99 \| good	0.496 \| good	10.434 \| good	0.213 \| good
2026-09-30T10:00:00.000Z	22 \| good	3.987 \| good	17.649 \| good	10.241 \| good	0.503 \| good	10.621 \| good	0.217 \| good
2026-09-30T11:00:00.000Z	33 \| good	6.143 \| good	27.197 \| good	7.69 \| good	0.535 \| good	10.626 \| good	0.231 \| good
2026-09-30T12:00:00.000Z	49 \| good	8.872 \| good	39.055 \| good	7.635 \| good	0.556 \| good	9.359 \| good	0.255 \| good
2026-09-30T13:00:00.000Z	44 \| good	8.266 \| good	36.5 \| good	9.141 \| good	0.571 \| good	7.455 \| good	0.252 \| good
2026-09-30T14:00:00.000Z	33 \| good	6.313 \| good	28.027 \| good	13.425 \| good	0.569 \| good	5.925 \| good	0.23 \| good
2026-09-30T15:00:00.000Z	22 \| good	4.395 \| good	19.27 \| good	20.664 \| good	0.5 \| good	4.195 \| good	0.201 \| good
2026-09-30T16:00:00.000Z	33 \| good	5.792 \| good	25.134 \| good	28.119 \| good	0.432 \| good	3.442 \| good	0.188 \| good
2026-09-30T17:00:00.000Z	38 \| good	7.006 \| good	30.82 \| good	34.509 \| good	0.405 \| good	3.48 \| good	0.184 \| good
2026-09-30T18:00:00.000Z	44 \| good	8.227 \| good	36.199 \| good	38.457 \| good	0.395 \| good	3.636 \| good	0.183 \| good
2026-09-30T19:00:00.000Z	49 \| good	8.572 \| good	37.455 \| good	40.299 \| good	0.4 \| good	3.818 \| good	0.184 \| good
2026-09-30T20:00:00.000Z	49 \| good	8.993 \| good	39.768 \| good	40.539 \| good	0.415 \| good	4.734 \| good	0.188 \| good
2026-09-30T21:00:00.000Z	54 \| moderate	11.442 \| good	50.642 \| good	30.551 \| good	0.436 \| good	7.017 \| good	0.201 \| good
2026-09-30T22:00:00.000Z	56 \| moderate	12.311 \| fine	55.219 \| fine	20.775 \| good	0.47 \| good	12.175 \| good	0.24 \| good

Melrose

Empower business decisions with accurate air quality data

Melrose, Massachusetts air quality map: Real-time AQI near you

0.27ppm

How accurate is Massachusetts, USA air quality data?

Air quality measurements for Massachusetts, 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 Melrose, Massachusetts updated?

Air quality data for Melrose, Massachusetts is updated on an hourly basis.

When did Melrose, Massachusetts experience the worst air quality in the last 24 hours?

The worst air quality in Melrose, Massachusetts was recorded at 03:00:00 on 2026-09-28.

When did Melrose, Massachusetts have its best air quality in the last 24 hours?

The best air quality in Melrose, Massachusetts was recorded at 09:00:00 on 2026-09-28.

What is the real-time air quality index for Melrose, Massachusetts?

The real-time air quality index in Melrose, Massachusetts is 21, currently categorized as Good.

Which pollutant is found most often in Melrose, Massachusetts?

The most common pollutant in Melrose, Massachusetts is O3.

What can I do if the air quality in Melrose, Massachusetts is poor?

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

What are the current PM_2.5 levels in Melrose, Massachusetts?

The measured PM_2.5 levels in Melrose, Massachusetts at present are 1.412 μg/m³.

What are the current PM₁₀ levels at Melrose, Massachusetts?

The current PM₁₀ levels in Melrose, Massachusetts are 5.657 μg/m³.

What are the current carbon monoxide (CO) levels at Melrose, Massachusetts?

The current carbon monoxide (CO) level in Melrose, Massachusetts is 0.274 ppm.

What are the current sulfur dioxide (SO₂) levels at Melrose, Massachusetts?

The current sulfur dioxide (SO₂) levels in Melrose, Massachusetts are 1.021 ppb.

What are the current ozone (O₃) levels at Melrose, Massachusetts?

The current ozone (O₃) levels at Melrose, Massachusetts is 23.291 ppm.

What are the current nitrogen dioxide (NO₂) levels at Melrose, Massachusetts?

The current nitrogen dioxide (NO₂) levels at Melrose, Massachusetts is 4.436 ppb.

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Time	AQI	PM_2.5	PM₁₀	O₃	SO₂	NO₂	CO
2026-09-26T23:00:00.000Z	32 \| good	4.867 \| good	18.915 \| good	34.958 \| good	0.795 \| good	2.085 \| good	0.148 \| good
2026-09-27T00:00:00.000Z	33 \| good	4.806 \| good	18.54 \| good	36.345 \| good	0.746 \| good	2.338 \| good	0.148 \| good
2026-09-27T01:00:00.000Z	32 \| good	4.986 \| good	19.484 \| good	35.464 \| good	0.828 \| good	3.199 \| good	0.148 \| good
2026-09-27T02:00:00.000Z	33 \| good	5.632 \| good	21.87 \| good	36.362 \| good	0.835 \| good	3.628 \| good	0.146 \| good
2026-09-27T03:00:00.000Z	31 \| good	2.606 \| good	10.656 \| good	33.3 \| good	0.143 \| good	1.375 \| good	0.132 \| good
2026-09-27T04:00:00.000Z	33 \| good	5.736 \| good	22.666 \| good	35.967 \| good	0.823 \| good	2.789 \| good	0.148 \| good
2026-09-27T05:00:00.000Z	33 \| good	5.654 \| good	21.854 \| good	35.255 \| good	0.468 \| good	2.366 \| good	0.148 \| good
2026-09-27T06:00:00.000Z	31 \| good	4.961 \| good	18.938 \| good	33.026 \| good	0.796 \| good	2.358 \| good	0.14 \| good
2026-09-27T07:00:00.000Z	30 \| good	4.961 \| good	18.938 \| good	32 \| good	0.796 \| good	2.361 \| good	0.14 \| good
2026-09-27T08:00:00.000Z	29 \| good	4.247 \| good	16.187 \| good	31.36 \| good	0.824 \| good	0.952 \| good	0.14 \| good
2026-09-27T09:00:00.000Z	29 \| good	4.072 \| good	15.552 \| good	31.137 \| good	0.818 \| good	1.849 \| good	0.14 \| good
2026-09-27T10:00:00.000Z	29 \| good	3.206 \| good	11.878 \| good	31.291 \| good	0.785 \| good	2.275 \| good	0.14 \| good
2026-09-27T11:00:00.000Z	29 \| good	2.921 \| good	10.878 \| good	30.623 \| good	0.796 \| good	3.001 \| good	0.14 \| good
2026-09-27T12:00:00.000Z	30 \| good	2.822 \| good	10.712 \| good	31.506 \| good	0.818 \| good	3.365 \| good	0.14 \| good
2026-09-27T13:00:00.000Z	29 \| good	2.822 \| good	10.712 \| good	30.647 \| good	0.818 \| good	3.377 \| good	0.14 \| good
2026-09-27T14:00:00.000Z	28 \| good	2.293 \| good	8.353 \| good	29.814 \| good	0.817 \| good	3.479 \| good	0.146 \| good
2026-09-27T15:00:00.000Z	29 \| good	1.765 \| good	6.59 \| good	30.639 \| good	0.823 \| good	1.922 \| good	0.146 \| good
2026-09-27T16:00:00.000Z	28 \| good	1.459 \| good	5.17 \| good	30.121 \| good	0.775 \| good	3.378 \| good	0.152 \| good
2026-09-27T17:00:00.000Z	28 \| good	1.541 \| good	5.59 \| good	29.547 \| good	0.818 \| good	3.408 \| good	0.158 \| good
2026-09-27T18:00:00.000Z	27 \| good	1.898 \| good	7.154 \| good	29.045 \| good	0.825 \| good	3.65 \| good	0.152 \| good
2026-09-27T19:00:00.000Z	27 \| good	2.304 \| good	8.668 \| good	28.908 \| good	0.825 \| good	3.695 \| good	0.152 \| good
2026-09-27T20:00:00.000Z	27 \| good	2.374 \| good	9.208 \| good	29.2 \| good	0.808 \| good	4.084 \| good	0.146 \| good
2026-09-27T21:00:00.000Z	27 \| good	2.266 \| good	8.867 \| good	29.498 \| good	0.773 \| good	4.241 \| good	0.146 \| good
2026-09-27T22:00:00.000Z	26 \| good	2.052 \| good	7.518 \| good	28.465 \| good	0.83 \| good	4.338 \| good	0.146 \| good
2026-09-27T23:00:00.000Z	28 \| good	1.827 \| good	6.756 \| good	29.904 \| good	0.823 \| good	4.676 \| good	0.146 \| good
2026-09-28T00:00:00.000Z	27 \| good	1.617 \| good	6.086 \| good	29.095 \| good	0.768 \| good	4.846 \| good	0.146 \| good
2026-09-28T01:00:00.000Z	27 \| good	1.913 \| good	6.812 \| good	28.719 \| good	0.779 \| good	2.459 \| good	0.146 \| good
2026-09-28T02:00:00.000Z	26 \| good	3.537 \| good	13.398 \| good	28.415 \| good	0.788 \| good	2.047 \| good	0.146 \| good
2026-09-28T03:00:00.000Z	33 \| good	5.73 \| good	24.755 \| good	28.193 \| good	0.149 \| good	2.671 \| good	0.13 \| good
2026-09-28T04:00:00.000Z	27 \| good	4.651 \| good	17.382 \| good	29.18 \| good	0.789 \| good	1.829 \| good	0.146 \| good
2026-09-28T05:00:00.000Z	27 \| good	4.61 \| good	17.702 \| good	28.823 \| good	0.783 \| good	1.473 \| good	0.14 \| good
2026-09-28T06:00:00.000Z	27 \| good	4.094 \| good	15.679 \| good	29.171 \| good	0.795 \| good	1.239 \| good	0.14 \| good
2026-09-28T07:00:00.000Z	28 \| good	4.094 \| good	15.679 \| good	30.011 \| good	0.795 \| good	1.242 \| good	0.14 \| good
2026-09-28T08:00:00.000Z	28 \| good	3.569 \| good	13.32 \| good	29.519 \| good	0.795 \| good	1.082 \| good	0.14 \| good
2026-09-28T09:00:00.000Z	26 \| good	2.403 \| good	8.386 \| good	28.311 \| good	0.728 \| good	1.498 \| good	0.146 \| good
2026-09-28T10:00:00.000Z	27 \| good	2.138 \| good	7.624 \| good	28.859 \| good	0.782 \| good	2.115 \| good	0.152 \| good
2026-09-28T11:00:00.000Z	27 \| good	1.968 \| good	7.203 \| good	28.809 \| good	0.794 \| good	2.832 \| good	0.152 \| good
2026-09-28T12:00:00.000Z	26 \| good	1.759 \| good	6.59 \| good	27.807 \| good	0.785 \| good	3.9 \| good	0.158 \| good
2026-09-28T13:00:00.000Z	25 \| good	1.759 \| good	6.59 \| good	26.91 \| good	0.786 \| good	3.98 \| good	0.164 \| good
2026-09-28T14:00:00.000Z	26 \| good	1.434 \| good	5.512 \| good	27.698 \| good	1.021 \| good	5.888 \| good	0.214 \| good
2026-09-28T15:00:00.000Z	25 \| good	1.318 \| good	5.08 \| good	26.965 \| good	1.025 \| good	5.237 \| good	0.269 \| good
2026-09-28T16:00:00.000Z	25 \| good	1.285 \| good	4.809 \| good	26.952 \| good	1.028 \| good	5.033 \| good	0.198 \| good
2026-09-28T17:00:00.000Z	25 \| good	1.285 \| good	4.809 \| good	26.9 \| good	1.043 \| good	3.913 \| good	0.206 \| good
2026-09-28T18:00:00.000Z	24 \| good	1.362 \| good	5.184 \| good	25.953 \| good	1.029 \| good	3.955 \| good	0.206 \| good
2026-09-28T19:00:00.000Z	24 \| good	1.404 \| good	5.184 \| good	26.344 \| good	1.016 \| good	3.287 \| good	0.269 \| good
2026-09-28T20:00:00.000Z	22 \| good	1.581 \| good	6.558 \| good	24.328 \| good	1.063 \| good	4.255 \| good	0.275 \| good
2026-09-28T21:00:00.000Z	21 \| good	1.465 \| good	5.881 \| good	23.202 \| good	1.028 \| good	4.535 \| good	0.275 \| good
2026-09-28T22:00:00.000Z	20 \| good	1.1 \| good	4.497 \| good	22.463 \| good	1.032 \| good	3.259 \| good	0.269 \| good
2026-09-28T22:00:00.000Z	21 \| good	1.412 \| good	5.657 \| good	23.291 \| good	1.021 \| good	4.436 \| good	0.274 \| good
2026-09-28T23:00:00.000Z	22 \| good	3.988 \| good	17.317 \| good	22.91 \| good	0.3 \| good	8.915 \| good	0.177 \| good
2026-09-29T00:00:00.000Z	27 \| good	5.072 \| good	21.943 \| good	23.81 \| good	0.325 \| good	8.829 \| good	0.173 \| good
2026-09-29T01:00:00.000Z	27 \| good	5.109 \| good	22 \| good	21.774 \| good	0.354 \| good	9.261 \| good	0.173 \| good
2026-09-29T02:00:00.000Z	27 \| good	4.94 \| good	21.304 \| good	19.741 \| good	0.381 \| good	10.076 \| good	0.174 \| good
2026-09-29T03:00:00.000Z	27 \| good	4.723 \| good	20.624 \| good	18.405 \| good	0.391 \| good	10.013 \| good	0.174 \| good
2026-09-29T04:00:00.000Z	22 \| good	4.068 \| good	17.971 \| good	17.744 \| good	0.38 \| good	8.814 \| good	0.172 \| good
2026-09-29T05:00:00.000Z	19 \| good	3.365 \| good	14.805 \| good	19.683 \| good	0.362 \| good	7.383 \| good	0.167 \| good
2026-09-29T06:00:00.000Z	20 \| good	2.827 \| good	11.696 \| good	21.962 \| good	0.335 \| good	6.206 \| good	0.162 \| good
2026-09-29T07:00:00.000Z	21 \| good	2.801 \| good	11.639 \| good	22.858 \| good	0.306 \| good	5.225 \| good	0.157 \| good
2026-09-29T08:00:00.000Z	21 \| good	2.845 \| good	11.748 \| good	22.539 \| good	0.276 \| good	4.275 \| good	0.153 \| good
2026-09-29T09:00:00.000Z	19 \| good	3.356 \| good	14.929 \| good	19.666 \| good	0.259 \| good	3.902 \| good	0.151 \| good
2026-09-29T10:00:00.000Z	22 \| good	3.706 \| good	16.199 \| good	17.409 \| good	0.256 \| good	4.248 \| good	0.151 \| good
2026-09-29T11:00:00.000Z	22 \| good	4.049 \| good	17.744 \| good	13.396 \| good	0.271 \| good	6.418 \| good	0.163 \| good
2026-09-29T12:00:00.000Z	22 \| good	3.775 \| good	16.776 \| good	12.644 \| good	0.286 \| good	7.828 \| good	0.184 \| good
2026-09-29T13:00:00.000Z	22 \| good	3.999 \| good	17.54 \| good	14.063 \| good	0.287 \| good	6.824 \| good	0.188 \| good
2026-09-29T14:00:00.000Z	16 \| good	3.221 \| good	14.151 \| good	16.475 \| good	0.279 \| good	5.016 \| good	0.178 \| good
2026-09-29T15:00:00.000Z	20 \| good	2.526 \| good	10.266 \| good	21.816 \| good	0.264 \| good	3.396 \| good	0.164 \| good
2026-09-29T16:00:00.000Z	24 \| good	2.471 \| good	10.104 \| good	26.452 \| good	0.268 \| good	2.802 \| good	0.157 \| good
2026-09-29T17:00:00.000Z	26 \| good	2.877 \| good	11.517 \| good	28.061 \| good	0.266 \| good	2.587 \| good	0.155 \| good
2026-09-29T18:00:00.000Z	25 \| good	3.458 \| good	15.274 \| good	26.822 \| good	0.268 \| good	2.682 \| good	0.156 \| good
2026-09-29T19:00:00.000Z	27 \| good	4.993 \| good	21.559 \| good	20.492 \| good	0.269 \| good	2.761 \| good	0.157 \| good
2026-09-29T20:00:00.000Z	38 \| good	7.237 \| good	31.887 \| good	17.03 \| good	0.282 \| good	2.882 \| good	0.158 \| good
2026-09-29T21:00:00.000Z	44 \| good	8.476 \| good	37.13 \| good	16.952 \| good	0.319 \| good	4.935 \| good	0.175 \| good
2026-09-29T22:00:00.000Z	49 \| good	9.127 \| good	40.451 \| good	15.467 \| good	0.366 \| good	8.745 \| good	0.203 \| good
2026-09-29T23:00:00.000Z	49 \| good	9.102 \| good	40.258 \| good	13.494 \| good	0.43 \| good	14.016 \| good	0.235 \| good
2026-09-30T00:00:00.000Z	52 \| moderate	10.273 \| good	45.588 \| good	13.476 \| good	0.477 \| good	15.104 \| good	0.24 \| good
2026-09-30T01:00:00.000Z	52 \| moderate	10.135 \| good	45.14 \| good	13.115 \| good	0.503 \| good	14.348 \| good	0.232 \| good
2026-09-30T02:00:00.000Z	52 \| moderate	9.545 \| good	42.306 \| good	12.918 \| good	0.523 \| good	13.298 \| good	0.224 \| good
2026-09-30T03:00:00.000Z	44 \| good	7.924 \| good	34.811 \| good	14.891 \| good	0.534 \| good	12.342 \| good	0.219 \| good
2026-09-30T04:00:00.000Z	33 \| good	6.45 \| good	28.757 \| good	19.176 \| good	0.529 \| good	10.964 \| good	0.215 \| good
2026-09-30T05:00:00.000Z	22 \| good	4.5 \| good	19.481 \| good	19.232 \| good	0.52 \| good	9.859 \| good	0.209 \| good
2026-09-30T06:00:00.000Z	22 \| good	3.911 \| good	16.978 \| good	18.203 \| good	0.512 \| good	9.371 \| good	0.206 \| good
2026-09-30T07:00:00.000Z	27 \| good	4.738 \| good	20.598 \| good	18.595 \| good	0.504 \| good	9.453 \| good	0.205 \| good
2026-09-30T08:00:00.000Z	27 \| good	4.974 \| good	21.498 \| good	18.398 \| good	0.498 \| good	10.093 \| good	0.209 \| good
2026-09-30T09:00:00.000Z	22 \| good	3.621 \| good	16.056 \| good	13.99 \| good	0.496 \| good	10.434 \| good	0.213 \| good
2026-09-30T10:00:00.000Z	22 \| good	3.987 \| good	17.649 \| good	10.241 \| good	0.503 \| good	10.621 \| good	0.217 \| good
2026-09-30T11:00:00.000Z	33 \| good	6.143 \| good	27.197 \| good	7.69 \| good	0.535 \| good	10.626 \| good	0.231 \| good
2026-09-30T12:00:00.000Z	49 \| good	8.872 \| good	39.055 \| good	7.635 \| good	0.556 \| good	9.359 \| good	0.255 \| good
2026-09-30T13:00:00.000Z	44 \| good	8.266 \| good	36.5 \| good	9.141 \| good	0.571 \| good	7.455 \| good	0.252 \| good
2026-09-30T14:00:00.000Z	33 \| good	6.313 \| good	28.027 \| good	13.425 \| good	0.569 \| good	5.925 \| good	0.23 \| good
2026-09-30T15:00:00.000Z	22 \| good	4.395 \| good	19.27 \| good	20.664 \| good	0.5 \| good	4.195 \| good	0.201 \| good
2026-09-30T16:00:00.000Z	33 \| good	5.792 \| good	25.134 \| good	28.119 \| good	0.432 \| good	3.442 \| good	0.188 \| good
2026-09-30T17:00:00.000Z	38 \| good	7.006 \| good	30.82 \| good	34.509 \| good	0.405 \| good	3.48 \| good	0.184 \| good
2026-09-30T18:00:00.000Z	44 \| good	8.227 \| good	36.199 \| good	38.457 \| good	0.395 \| good	3.636 \| good	0.183 \| good
2026-09-30T19:00:00.000Z	49 \| good	8.572 \| good	37.455 \| good	40.299 \| good	0.4 \| good	3.818 \| good	0.184 \| good
2026-09-30T20:00:00.000Z	49 \| good	8.993 \| good	39.768 \| good	40.539 \| good	0.415 \| good	4.734 \| good	0.188 \| good
2026-09-30T21:00:00.000Z	54 \| moderate	11.442 \| good	50.642 \| good	30.551 \| good	0.436 \| good	7.017 \| good	0.201 \| good
2026-09-30T22:00:00.000Z	56 \| moderate	12.311 \| fine	55.219 \| fine	20.775 \| good	0.47 \| good	12.175 \| good	0.24 \| good

Real-time air quality index in Melrose, Massachusetts today

Common air pollutants in Melrose, Massachusetts

Particulate Matter2.5 (PM2.5)

Particulate Matter10 (PM10)

Ozone (O3)

Sulfur Dioxide (SO2)

Nitrogen Dioxide (NO2)

Carbon Monoxide (CO)

Track live Melrose, Massachusetts air quality forecast and history

Empower business decisions with accurate air quality data

Melrose, Massachusetts air quality map: Real-time AQI near you

Air quality in nearby cities

Malden, Massachusetts

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Frequently asked questions

How frequently is the air quality data for Melrose, Massachusetts updated?

When did Melrose, Massachusetts experience the worst air quality in the last 24 hours?

When did Melrose, Massachusetts have its best air quality in the last 24 hours?

What is the real-time air quality index for Melrose, Massachusetts?

Which pollutant is found most often in Melrose, Massachusetts?

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What are the current PM2.5 levels in Melrose, Massachusetts?

What are the current PM10 levels at Melrose, Massachusetts?

What are the current carbon monoxide (CO) levels at Melrose, Massachusetts?

What are the current sulfur dioxide (SO2) levels at Melrose, Massachusetts?

What are the current ozone (O3) levels at Melrose, Massachusetts?

What are the current nitrogen dioxide (NO2) levels at Melrose, Massachusetts?

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 Melrose, Massachusetts?

What are the current PM₁₀ levels at Melrose, Massachusetts?

What are the current sulfur dioxide (SO₂) levels at Melrose, Massachusetts?

What are the current ozone (O₃) levels at Melrose, Massachusetts?

What are the current nitrogen dioxide (NO₂) levels at Melrose, Massachusetts?