Air Quality in Pasto Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

Latest air quality data: Pasto

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

particulate matter (PM2.5) dust - 4 (Good)
particulate matter (PM10) suspended dust - 5 (Good)
ozone (O3) - 40 (Good)
nitrogen dioxide (NO2) - 6 (Good)
sulfur dioxide (SO2) - 1 (Good)
carbon monoxide (CO) - 456 (Good)

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

AQI 1 Good

What is the air quality in Pasto today? Is the air polluted in Pasto?. 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 Pasto.

What is the current level of PM2.5 in Pasto? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 4 (Good) For comparison, the highest level of PM2.5 in Pasto in the last 7 days was: 4 (Sunday, August 23, 2026) and the lowest: 2 (Tuesday, August 25, 2026).

What is the level of PM10 today in Pasto? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Pasto is: 5 (Good)

How is the O3 level today in Pasto? (ozone (O3))
40 (Good)

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

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

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

Current data Wednesday, August 26, 2026 at 8:00 PM

PM2,5 4 (Good)

PM10 5 (Good)

O3 40 (Good)

NO2 6 (Good)

SO2 1 (Good)

CO 456 (Good)

Data on air pollution from recent days in Pasto

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	3 Good	2 Good	3 Good	4 Good	4 Good	4 Good	3 Good	4 Good
pm10	4 Good	2 Good	4 Good	5 Good	4 Good	4 Good	3 Good	4 Good
o3	43 Good	44 Good	49 Good	42 Good	41 Good	36 Good	40 Good	32 Good
no2	2 Good	2 Good	2 Good	1 Good	2 Good	3 Good	2 Good	2 Good
so2	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good	0 Good
co	208 Good	180 Good	183 Good	146 Good	172 Good	176 Good	152 Good	146 Good

data source »

Quality of life in Pasto

Green and Parks in the City

Pasto 83%

Panama: 51% Ecuador: 64% Costa Rica: 61% Nicaragua: 43% Peru: 45%

particulate matter PM2.5

Pasto 9 (Good)

Pleasure of spending time in the city

Pasto 75%

Panama: 55% Ecuador: 52% Costa Rica: 62% Nicaragua: 52% Peru: 36%

particulate matter PM10

Pasto 18 (Good)

Air Pollution

Pasto 32%

Panama: 42% Ecuador: 53% Costa Rica: 36% Nicaragua: 39% Peru: 76%

Garbage Disposal

Pasto 33%

Panama: 33% Ecuador: 48% Costa Rica: 50% Nicaragua: 30% Peru: 36%

Availability and quality of drinking water

Pasto 50%

Panama: 66% Ecuador: 63% Costa Rica: 83% Nicaragua: 49% Peru: 38%

Cleanliness and tidiness

Pasto 33%

Panama: 37% Ecuador: 46% Costa Rica: 46% Nicaragua: 29% Peru: 29%

Noise and Light pollution

Pasto 58%

Panama: 60% Ecuador: 57% Costa Rica: 47% Nicaragua: 63% Peru: 68%

Water Pollution

Pasto 75%

Panama: 57% Ecuador: 56% Costa Rica: 44% Nicaragua: 73% Peru: 76%

Source: Numbeo

Pasto

Wednesday, August 26, 2026 at 8:00 PM

PM2,5 4.4 (Good)

particulate matter (PM2.5) dust

PM10 4.6 (Good)

particulate matter (PM10) suspended dust

O3 40 (Good)

ozone (O3)

NO2 5.6 (Good)

nitrogen dioxide (NO2)

SO2 0.7 (Good)

sulfur dioxide (SO2)

CO 456 (Good)

carbon monoxide (CO)

Pasto

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	3.9	3	3.9	3.6	4.3	3.4	2.3	3.4
pm10	4.2	3.2	4.2	3.7	4.5	3.6	2.5	3.7
o3	32	40	36	41	42	49	44	43
no2	2	1.7	2.5	1.8	1	1.9	1.6	2.2
so2	0.41	0.33	0.44	0.48	0.36	0.43	0.36	0.45
co	146	152	176	172	146	183	180	208

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

🌦️ Weather · 16-day Forecast — Pasto

16-day weather forecast for Pasto: today around 20°C (rain), lows near 10°C. Daily temperature and conditions, updated every day. A moderate breeze (about 12 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Pasto

The UV index in Pasto today is 9.1 (very high) — unprotected fair skin can burn in about 20 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Pasto — compare nearby locations.

IbarraEcuador 4 µg/m³
Popayán 5 µg/m³
QuitoEcuador 3 µg/m³
Santiago de Cali 7 µg/m³
EsmeraldasEcuador 17 µg/m³
Bogotá 29 µg/m³
Medellín 13 µg/m³
Barranquilla 17 µg/m³

Frequently asked questions

Is the air safe to breathe in Pasto today?

The current average PM2.5 across Pasto is about 4 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Pasto?

Right now PM2.5 in Pasto averages about 4 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 Pasto?

Over the past week, the highest daily PM2.5 in Pasto was recorded on Sunday, August 23 (about 4 µg/m³).

What is the UV index in Pasto today?

The UV index in Pasto today is 9.1 (very high) — unprotected fair skin can burn in about 20 minutes.

Does today's wind help disperse smog in Pasto?

A moderate breeze (about 12 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.