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City report · Florida, United States

Port Saint Lucie Air quality today

Air quality in Port Saint Lucie currently reads AQI 18 (Good): Air quality is satisfactory for everyone.

Air quality right now

AQI 18

Good

Main pollutant: PM2.5
PM2.5, fine particles (µg/m³)
3.2
tree cover
32.4%
trees in this area
102K
more trees needed
0

Measured across a 1.2 mi (2 km) radius around Port St. Lucie, FL, USA (4.9 sq mi), from a satellite image of Oct 21, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.

Port Saint Lucie · AQI 18 (Good)

Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Oct 21, 2026

Port Saint Lucie's tree count comes to 101,788 trees across 4.9 sq mi (12.57 km²), already at or above the 30% tree-cover level considered healthy for this area.

Air quality detail

Air quality in Port Saint Lucie today: AQI 18, Good

Main pollutant: PM2.5 · Observed Nov 11, 09:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · Port Saint Lucie, FL, 6.3 mi (10.2 km) away · median of 2 stations

Health signal

Air quality is satisfactory for everyone.

PM2.5

3.2

PM10

—

NO₂

—

O₃

27.5

SO₂

—

CO

—

Data: OpenAQ · AirGradient, AirNow, Stan

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 Port Saint Lucie's daily AQI at 45 on average, from 39 on Nov 9 to an hourly peak of 66 on Nov 7.

Last 7 days · model estimateavg 45 · peak 66
Nov 4: AQI 42 (peak 56)Nov 5: AQI 47 (peak 57)Nov 6: AQI 40 (peak 57)Nov 7: AQI 60 (peak 66)Nov 8: AQI 44 (peak 53)Nov 9: AQI 39 (peak 49)Nov 10: AQI 44 (peak 53)
Nov 4Nov 10

Where Port Saint Lucie stands: the most polluted cities in the world right now · the cleanest

Tree cover detail

Tree cover in Port Saint Lucie: Healthy tree cover

32.4% tree cover against a 30% healthy-neighborhood target, across 4.9 sq mi (12.57 km²).

Target reached

Trees in this area

101,788

Target trees

101,788

More trees needed

0

CO₂ if planted / yr

0 kg

Deforestation · 2001–2025

How much forest has Port Saint Lucie lost?

Since 2001, the area within 10 km of Port Saint Lucie has lost about 4,260 acres (1,720 hectares) of forest (about 3,200 football fields): 24% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads.

Satellite image of the area around Port Saint Lucie, April 2017

2017: satellite photo from April 2017 of a 5 × 5 km area about 6 km northeast of the city center.

Forest lost since 2001
4,260 acres (1,720 ha)about 3,200 football fields
Share of its forest
24%of what there was in 2000
Cleared for good
4,160 acres (1,680 ha)deforestation: turned into farms, mines or towns

The worst year was 2005, when about 615 acres (249 hectares) of forest were lost.

Forest lost each year around Port Saint Lucie, 2001–2025

Acres of forest lost each year

Forest lost each year around Port Saint Lucie, 2001–2025. Use the left and right arrow keys to read each year.615

Show the figures as a table
Forest lost each year around Port Saint Lucie, 2001–2025
YearCleared for goodCan grow backTotal
2001149 acres (60 ha)16 acres (6 ha)165 acres (67 ha)
2002269 acres (109 ha)2 acres (1 ha)272 acres (110 ha)
2003408 acres (165 ha)2 acres (1 ha)410 acres (166 ha)
2004568 acres (230 ha)42 acres (17 ha)610 acres (247 ha)
2005605 acres (245 ha)10 acres (4 ha)615 acres (249 ha)
2006339 acres (137 ha)2 acres (1 ha)341 acres (138 ha)
2007200 acres (81 ha)under 1 ha201 acres (82 ha)
2008149 acres (60 ha)4 acres (2 ha)153 acres (62 ha)
200992 acres (37 ha)7 acres (3 ha)99 acres (40 ha)
201040 acres (16 ha)2 acres (1 ha)43 acres (17 ha)
201164 acres (26 ha)under 1 ha64 acres (26 ha)
201253 acres (21 ha)under 1 ha53 acres (21 ha)
201355 acres (22 ha)under 1 ha55 acres (22 ha)
201450 acres (20 ha)under 1 ha51 acres (21 ha)
201523 acres (9 ha)under 1 ha23 acres (9 ha)
2016109 acres (44 ha)under 1 ha110 acres (45 ha)
2017157 acres (63 ha)4 acres (2 ha)161 acres (65 ha)
2018171 acres (69 ha)under 1 ha171 acres (69 ha)
201943 acres (17 ha)under 1 ha43 acres (17 ha)
202040 acres (16 ha)under 1 ha41 acres (17 ha)
2021149 acres (61 ha)under 1 ha150 acres (61 ha)
2022122 acres (49 ha)under 1 ha122 acres (49 ha)
202382 acres (33 ha)under 1 ha82 acres (33 ha)
2024167 acres (68 ha)under 1 ha167 acres (68 ha)
202556 acres (23 ha)4 acres (2 ha)60 acres (24 ha)

What is causing deforestation around Port Saint Lucie?

  • Towns and roadscleared for good95% · 4,070 acres (1,650 ha)
  • Storms, floods and other natural causescan grow back2% · 86 acres (35 ha)
  • Farms, pasture and plantationscleared for good1.9% · 81 acres (33 ha)

Also: mining and energy, 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
25,700 acres (10,400 ha)
Forest in 2020
26,700 acres (10,800 ha)
Overall change
+986 acres (399 ha)more forest than in 2000

Comparing satellite maps from 2000 and 2020, the forest around Port Saint Lucie grew from about 25,700 acres (10,400 hectares) to 26,700 acres (10,800 hectares), a net gain of about 986 acres (399 hectares) (+3.8%). New forest grew on about 2,200 acres (891 hectares), while 1,220 acres (492 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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Port Saint Lucie air quality (AQI) and tree cover — measured by Airleaf
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Frequently asked

Questions about Port Saint Lucie

What is the air quality (AQI) in Port Saint Lucie right now?

The latest reading for Port Saint Lucie shows an AQI of 18 (Good), measured Nov 11, 09:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Port Saint Lucie, FL, 6.3 mi (10.2 km) away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.

Is it safe to exercise outside in Port Saint Lucie today?

At AQI 18 (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 Port Saint Lucie been like this week?

Over the last 7 days, the CAMS air-quality model put Port Saint Lucie's daily AQI at 45 on average, from 39 on Nov 9 to an hourly peak of 66 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.

How much forest has the area around Port Saint Lucie lost since 2001?

Since 2001, the area within 10 km of Port Saint Lucie has lost about 4,260 acres (1,720 hectares) of forest (about 3,200 football fields): 24% of the forest it had in 2000. Most of it (98%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Port Saint Lucie grew from about 25,700 acres (10,400 hectares) to 26,700 acres (10,800 hectares), a net gain of about 986 acres (399 hectares) (+3.8%). New forest grew on about 2,200 acres (891 hectares), while 1,220 acres (492 hectares) were lost.

What is the tree count in Port Saint Lucie?

Port Saint Lucie has an estimated 101,788 trees across the 4.9 sq mi (12.57 km²) measured — 32.4% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Port Saint Lucie need?

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

How are Port Saint Lucie's air quality and tree cover measured?

Air quality is measured by ground monitoring stations near Port St. Lucie, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 1.2 mi (2 km) radius around Port St. Lucie; the tree count is an estimate derived from that cover.

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