Fortaleza: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Fortaleza

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Pollution and air quality forecast for Fortaleza. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Fortaleza:

particulate matter (PM2.5) dust - 11 (Good)
particulate matter (PM10) suspended dust - 18 (Good)
ozone (O3) - 59 (Good)
nitrogen dioxide (NO2) - 1 (Good)
sulfur dioxide (SO2) - 0 (Good)
carbon monoxide (CO) - 117 (Good)

Real-time Air Quality Index (AQI) for Fortaleza, Wednesday, August 26, 2026: 1.

AQI 1 Good

What is the air quality in Fortaleza today? Is the air polluted in Fortaleza?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Fortaleza.

What is the current level of PM2.5 in Fortaleza? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 11 (Good) For comparison, the highest level of PM2.5 in Fortaleza in the last 7 days was: 15 (Friday, August 21, 2026) and the lowest: 7 (Wednesday, August 19, 2026).

What is the level of PM10 today in Fortaleza? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Fortaleza is: 18 (Good)

How is the O3 level today in Fortaleza? (ozone (O3))
59 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
1 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
0 (Good)

How high is the CO level? (carbon monoxide (CO))
117 (Good)

Current data Wednesday, August 26, 2026 at 10:00 PM

PM2,5 11 (Good)

PM10 18 (Good)

O3 59 (Good)

NO2 1 (Good)

SO2 0 (Good)

CO 117 (Good)

Data on air pollution from recent days in Fortaleza

index	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20	2026-08-19
pm25	13 Moderate	14 Moderate	13 Moderate	13 Moderate	12 Good	15 Moderate	12 Good	7 Good
pm10	20 Moderate	22 Moderate	19 Good	20 Moderate	20 Moderate	24 Moderate	18 Good	12 Good
o3	73 Moderate	76 Moderate	73 Moderate	64 Good	67 Good	69 Good	70 Moderate	61 Good
no2	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good	1 Good
so2	1 Good	1 Good	1 Good	0 Good	0 Good	1 Good	1 Good	1 Good
co	127 Good	143 Good	160 Good	143 Good	121 Good	113 Good	114 Good	120 Good

data source »

Quality of life in Fortaleza

Green and Parks in the City

Fortaleza 36%

Paraguay: 46% Bolivia: 55% Montenegro: 53% Suriname: 40% Uruguay: 65%

Pleasure of spending time in the city

Fortaleza 53%

Paraguay: 49% Bolivia: 40% Montenegro: 69% Suriname: 63% Uruguay: 67%

Air Pollution

Fortaleza 38%

Paraguay: 56% Bolivia: 64% Montenegro: 40% Suriname: 39% Uruguay: 29%

Garbage Disposal

Fortaleza 31%

Paraguay: 30% Bolivia: 34% Montenegro: 42% Uruguay: 34%

Availability and quality of drinking water

Fortaleza 50%

Paraguay: 57% Montenegro: 71% Suriname: 64% Uruguay: 73%

Cleanliness and tidiness

Fortaleza 32%

Paraguay: 26% Bolivia: 32% Montenegro: 51% Suriname: 36% Uruguay: 38%

Noise and Light pollution

Fortaleza 49%

Paraguay: 52% Bolivia: 59% Montenegro: 32% Suriname: 34% Uruguay: 48%

Water Pollution

Fortaleza 57%

Paraguay: 65% Bolivia: 66% Montenegro: 38% Suriname: 57% Uruguay: 46%

Source: Numbeo

Fortaleza

Wednesday, August 26, 2026 at 10:00 PM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

PM10 18 (Good)

particulate matter (PM10) suspended dust

O3 59 (Good)

ozone (O3)

NO2 0.5 (Good)

nitrogen dioxide (NO2)

SO2 0.4 (Good)

sulfur dioxide (SO2)

CO 117 (Good)

carbon monoxide (CO)

Fortaleza

index	2026-08-19	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26
pm25	7.3	12	15	12	13	13	14	13
pm10	12	18	24	20	20	19	22	20
o3	61	70	69	67	64	73	76	73
no2	1.4	1.4	1.1	0.84	0.64	1.1	1.2	1.1
so2	0.57	0.57	0.51	0.46	0.46	0.58	0.58	0.54
co	120	114	113	121	143	160	143	127

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Brazil

16-day weather forecast for Brazil: today around 40°C (partly cloudy), lows near 22°C. Daily temperature and conditions, updated every day. A moderate breeze (about 9 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Brazil

The UV index in Brazil today is 7.9 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Fortaleza — compare nearby locations.

Natal 9 µg/m³
Teresina 21 µg/m³
Recife 13 µg/m³
Maceió 14 µg/m³
Salvador 17 µg/m³
Belém 12 µg/m³
Brasília 16 µg/m³
São Paulo 62 µg/m³

Frequently asked questions

Is the air safe to breathe in Fortaleza today?

The current average PM2.5 across Fortaleza is about 11 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Fortaleza?

Right now PM2.5 in Fortaleza averages about 11 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Fortaleza?

Over the past week, the highest daily PM2.5 in Fortaleza was recorded on Friday, August 21 (about 15 µg/m³).

What is the UV index in Fortaleza today?

The UV index in Fortaleza today is 7.9 (high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Fortaleza?

A moderate breeze (about 9 km/h) is partially dispersing pollutants today.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.