Next to Green St roundabout and tunnel

Monitoring Station · Saint Helier, JE
9
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
8 1am
9
9
8 4am
8
8
8 7am
8
8
8 10am
8
8
8 1pm
8
8
— 4pm
—
—
— 7pm
—
—
— 10pm
—
—
Station readings
8
9
9
CAMS model adj -17
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25

Air Quality Trend (24h)

PM2.52.1 µg/m³ ✓ WHO
Good

Nearby Monitoring Stations

8
Bottom of Mont Millais
0.4 km PM2.5: 1.8 µg/m³
25
Beresford Street (Calibration) New No 1
0.5 km PM2.5: 5.9 µg/m³
11
Broad St
0.6 km PM2.5: 2.6 µg/m³
8
Above Underpass
0.7 km PM2.5: 1.9 µg/m³
2
Mont Millais/College Hill Junction
0.7 km PM2.5: 0.6 µg/m³
9
La Collette/Mount Bingham
0.7 km PM2.5: 2.2 µg/m³
8
Georgetown Junction
0.7 km PM2.5: 1.8 µg/m³
8
Longueville Road/Georgetown Junction
0.7 km PM2.5: 1.9 µg/m³

Nearby Cities

10 Saint Helier 10 Saint Peter Port 25 Saint-Malo 6 Octeville 5 Équeurdreville-Hainneville 5 Cherbourg 5 Tourlaville 21 Saint-Lô 22 Saint-Brieuc

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-04-10T04:30 UTC.