Air Quality in Sector 4, Romania

Drizzle
21.6°C · 81.8% humidity
21.6°
Feels 21.6°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
45 10pm
45
52
34 1am
32
34
38 4am
40
40
41 7am
41
42
42 10am
42
43
43 1pm
43
43
45 4pm
43
43
43 7pm
45
45
Station readings
60
62
67
19
CAMS model adj +18
27
27
34
34
27
25
27
27
25
25
25
25
25
25
25
25
25
25
27
25
25
25
27
27
AD 728×90

Air Quality Index Trend

48h · 4 stn

Sector 4'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.

81.8%
Humidity
34.3 km/h
Wind NNE
1011.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
34
8.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations
PM2.58.18 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
8.18
Median
9.95
Average
3.8
Low
22.1
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -0.8
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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 2026-07-21T22:37 UTC.