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Air quality now: AQI45Good, Brusque

City report · Santa Catarina, Brazil

Brusque Air quality today

Air quality in Brusque currently reads AQI 45 (Good): Air quality is satisfactory for everyone.

AQI 45

Air quality right now

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
7.2
tree cover
46.7%
trees in this area
147K
more trees needed
0

Measured across a 2 km radius around Centro 1, Brusque - SC, Brazil (12.57 km²), from a satellite image of Sep 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Brusque · AQI 45 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 17, 2026

Brusque's tree count comes to 146,566 trees across 12.56 km² of land, already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Brusque today: AQI 45, Good

Main pollutant: PM2.5 · Observed Nov 11, 10:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.

Model estimate · no ground station nearby

Health signal

Air quality is satisfactory for everyone.

PM2.5

7.2

PM10

10.9

NO₂

1.7

O₃

65.0

SO₂

1.2

CO

84.0

Outdoor exercise
A good day to be active outside
Windows
Open them to air the house
Mask
Not needed
Air purifier
Not needed

Over the last 7 days, the CAMS air-quality model put Brusque's daily AQI at 36 on average, from 28 on Nov 6 to an hourly peak of 56 on Nov 8.

Last 7 daysavg 36 · peak 56
Nov 5: AQI 32 (peak 52)Nov 6: AQI 28 (peak 38)Nov 7: AQI 29 (peak 39)Nov 8: AQI 34 (peak 56)Nov 9: AQI 46 (peak 55)Nov 10: AQI 39 (peak 43)Nov 11: AQI 45 (peak 48)
Nov 5Nov 11

Where Brusque stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Brusque: Healthy tree cover

46.7% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.

Target reached

Trees in this area

146,566

Target trees

146,566

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Brusque lost?

Since 2001, the area within 10 km of Brusque has lost about 2,950 hectares of forest (about 4,100 football pitches): 12% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1,370 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns.

Satellite image of the area around Brusque, January 2017

2017: satellite photo from January 2017 of a 5 × 5 km area about 7 km southeast of the city center.

Forest lost since 2001
2,950 haabout 4,100 football pitches
Share of its forest
12%of what there was in 2000
Cleared for good
1,370 hadeforestation: turned into farms, mines or towns

Forest loss has stayed about the same: about 102 hectares a year in 2021–2025, against 114 hectares a year in 2016–2020. The worst year was 2011, when about 244 hectares of forest were lost.

Forest lost each year around Brusque, 2001–2025

Hectares of forest lost each year

Forest lost each year around Brusque, 2001–2025. Use the left and right arrow keys to read each year.244

Show the figures as a table
Forest lost each year around Brusque, 2001–2025
YearCleared for goodCan grow backTotal
200152 ha38 ha90 ha
200230 ha19 ha50 ha
200333 ha46 ha78 ha
200448 ha129 ha177 ha
200567 ha82 ha149 ha
200656 ha71 ha127 ha
200764 ha38 ha102 ha
2008107 ha106 ha213 ha
200952 ha102 ha154 ha
201072 ha105 ha177 ha
2011122 ha122 ha244 ha
201258 ha40 ha98 ha
201324 ha16 ha40 ha
201442 ha77 ha119 ha
201524 ha31 ha55 ha
201661 ha38 ha99 ha
201782 ha88 ha170 ha
201848 ha32 ha79 ha
201944 ha41 ha85 ha
202042 ha95 ha137 ha
202147 ha69 ha116 ha
202250 ha66 ha115 ha
202328 ha62 ha91 ha
202443 ha23 ha66 ha
202578 ha47 ha125 ha

What is causing deforestation around Brusque?

  • Loggingcan grow back53% · 1,570 ha
  • Towns and roadscleared for good43% · 1,270 ha
  • Mining and energycleared for good3.2% · 96 ha

Also: storms, floods and other natural causes, farms, pasture and plantations, unknown causes.

Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.

Forest gained and lost, 2000–2020

Forest in 2000
22,700 ha
Forest in 2020
22,100 ha
Overall change
−516 haless forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Brusque shrank from about 22,700 hectares to 22,100 hectares, a net loss of about 516 hectares (−2.3%). New forest grew on about 462 hectares, but 977 hectares were lost.

These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.

These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.

Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured

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Brusque air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Brusque

What is the air quality (AQI) in Brusque right now?

The latest reading for Brusque shows an AQI of 45 (Good), observed Nov 11, 10:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Brusque today?

At AQI 45 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.

What has the air quality in Brusque been like this week?

Over the last 7 days, the CAMS air-quality model put Brusque's daily AQI at 36 on average, from 28 on Nov 6 to an hourly peak of 56 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Brusque lost since 2001?

Since 2001, the area within 10 km of Brusque has lost about 2,950 hectares of forest (about 4,100 football pitches): 12% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 1,370 hectares (46%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 102 hectares a year in 2021–2025, against 114 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Brusque shrank from about 22,700 hectares to 22,100 hectares, a net loss of about 516 hectares (−2.3%). New forest grew on about 462 hectares, but 977 hectares were lost.

What is the tree count in Brusque?

Brusque has an estimated 146,566 trees across the 12.56 km² of land measured — 46.7% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Brusque need?

Brusque has already reached its tree-cover target, so no additional trees are needed to close the gap.

How are Brusque's air quality and tree cover measured?

Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Centro 1; the tree count is an estimate derived from that cover.

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