Air Quality in Boissy-Saint-Léger, France

Partly Cloudy
12.4°C · 64.7% humidity
12.4°
Feels 12.4°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
2 2am
2
2
60 5am
44
32
23 8am
19
15
10 11am
8
6
5 2pm
6
5
5 5pm
3
3
2 8pm
2
2
4 11pm
4
4
Station readings 15h ago
AQI 5
PM2.5 1.3 µg/m³ · 15h ago
CAMS model adj -23
25
25
25
25
25
25
25
27
27
25
25
25
25
27
27
27
25
25
25
25
25
27
27
27
AD 728×90

Air Quality Index Trend

18h · 1 stn

Boissy-Saint-Léger's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level. Current PM2.5 concentration in Boissy-Saint-Léger is 1.1× the WHO 24-hour guideline of 15 µg/m³.

64.7%
Humidity
12.3 km/h
Wind NW
1023.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
60
16.23 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

18h · 1 station
PM2.516.23 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
16.23
Median
13.17
Average
2.4
Low
71.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -10.3
06-09
24.5° 11.8°
0.44 mm
06-10
24.2° 14.3°
3.13 mm
06-11
28.5° 18.3°
0.31 mm
06-12
25.2° 12.0°
06-13
27.7° 10.8°
1.19 mm
06-14
25.5° 14.1°
1.25 mm
06-15
19.8° 12.7°
1.69 mm
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T03:14 UTC.