Mont Millais/College Hill Junction Air Quality

Monitoring Station · Saint Helier, Jersey
6
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
5 4am
6
0
0 7am
0
0
15 10am
15
15
0 1pm
0
0
0 4pm
0
—
— 7pm
—
—
— 10pm
—
—
— 1am
—
—
Station readings
5
6
CAMS model adj -39
34
34
34
34
34
34
54
54
54
27
27
27
27
27

Air Quality Forecast (24h)

PM2.51.4 µg/m³ ✓ WHO
Good
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Nearby Monitoring Stations

21
Bottom of Mont Millais
0.3 km PM2.5: 5.1 µg/m³
18
Georgetown Junction
0.5 km PM2.5: 4.3 µg/m³
23
Longueville Road/Georgetown Junction
0.6 km PM2.5: 5.6 µg/m³
28
Beresford Street (Calibration) New No 1
0.6 km PM2.5: 6.8 µg/m³
21
Next to Green St roundabout and tunnel
0.7 km PM2.5: 5.1 µg/m³
25
Broad St
0.9 km PM2.5: 5.9 µg/m³
32
Springfield (Roberts Garage)
1.0 km PM2.5: 7.7 µg/m³
20
Robin Hood junction
1.0 km PM2.5: 4.8 µg/m³

Nearby Cities

25 Saint Helier 36 Saint Peter Port 25 Octeville 26 Saint-Malo 25 Équeurdreville-Hainneville 25 Cherbourg 25 Tourlaville 22 Saint-Lô 48 Saint-Brieuc

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-22T07:04 UTC.