São João de Meriti
Rio de Janeiro

Air Quality

São João de Meriti • 3 days
Good
Moderate
Sensitive groups
Unhealthy
Very unhealthy
Hazardous
Today 04/08
😐
Moderate AQI 74 / 300
GoodModerateHazardous
PM2.5
23.1 µg/m³
PM10
26.0 µg/m³
Ozone (O₃)
38.0 µg/m³
Nitrogen dioxide (NO₂)
48.5 µg/m³
Sulfur dioxide (SO₂)
7.9 µg/m³
Carbon monoxide (CO)
1282.0 µg/m³
Tomorrow 05/08
😐
Moderate AQI 66 / 300
GoodModerateHazardous
PM2.5
19.3 µg/m³
PM10
20.8 µg/m³
Ozone (O₃)
51.6 µg/m³
Nitrogen dioxide (NO₂)
33.3 µg/m³
Sulfur dioxide (SO₂)
6.7 µg/m³
Carbon monoxide (CO)
786.8 µg/m³
Thu 06/08
😐
Moderate AQI 60 / 300
GoodModerateHazardous
PM2.5
16.6 µg/m³
PM10
17.3 µg/m³
Ozone (O₃)
53.8 µg/m³
Nitrogen dioxide (NO₂)
29.9 µg/m³
Sulfur dioxide (SO₂)
6.4 µg/m³
Carbon monoxide (CO)
1053.3 µg/m³

The air in São João de Meriti has a bit of a heavy, smoky weight to it this morning, not thick enough to see but enough to notice when you take a deep breath. It sits in the back of the throat, and a short walk can leave you feeling a little more tired than usual, like the sky is pressing down gently.

It’s not a day to push yourself outdoors. If you were planning a long jog or a bike ride, maybe save it for tomorrow, and keep the windows closed for now, especially during the busier hours when the streets are full. A quick stroll to the shop is fine, but don’t linger outside more than you need to.

Children playing in the yard and older folks with breathing or heart troubles might want to take it easier today, as the air can feel more demanding on their lungs. If you or someone you know has been a bit wheezy lately, this is a good day to stay indoors and keep activities light, maybe reading a book or doing some gentle stretching by an open window only after the evening cools down.

The good news is this heavy patch usually passes, and it’s not a day for alarm, just a bit of common sense. Keep your windows shut for now, take it slow, and by tomorrow we should be back to our usual freshness, so don’t worry, just pace yourself.

Weather map

Wind, rain and temperature — São João de Meriti
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Districts

São João de Meriti

Air quality in São João de Meriti (RJ)

Air quality in São João de Meriti (Rio de Janeiro) with up-to-date data for today, tomorrow and the day after: air quality index (AQI), fine particulate matter PM2.5 and PM10, ozone (O₃), nitrogen dioxide (NO₂), sulfur dioxide (SO₂) and carbon monoxide (CO). Find out whether the air is Good, Moderate, Unhealthy or Hazardous and make safer decisions for outdoor activities.