What is the air quality in Sector 4 today?

The current Air Quality Index (AQI) in Sector 4 is 24 (Good). PM2.5 concentration is 5.84 µg/m³.

What is the temperature in Sector 4 right now?

The current temperature in Sector 4 is 12.9°C (feels like 12.9°C). Humidity is 85.3% and wind speed is 87.7 km/h.

Is it safe to go outside in Sector 4?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Sector 4, Romania

Windy

12.9°C · 85.3% humidity

12.9°

Feels 12.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

7 stations

Nearby Monitoring Stations

AQI Forecast

— 7am

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24 10am

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— 1pm

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— 4pm

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— 7pm

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— 10pm

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— 4am

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Station readings

Air Quality Index Trend

48h · 4 stn

View full history →

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.

85.3%

Humidity

87.7 km/h

Wind ENE

1013.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

5.84 µg/m³

PM10▲

54.9 µg/m³

050100150200300500

What is the weather forecast for Sector 4?

Temperature & Precipitation

PM2.5 Trend

48h · 4 stations

PM2.55.84 µg/m³ ✓ WHO

Good

PM1054.9 µg/m³

Moderate

UV INDEX0.0

Low

Station readings (7 stations within 25 km)

5.84

Median

8.74

Average

3.4

Low

28.61

High

PM2.5 µg/m³ · Model: 19.2 · Bias: +13.4

What is the 7-day forecast for Sector 4?

10-21

17.8° 10.3°

0.06 mm

10-22

16.4° 10.9°

10-23

18.0° 9.6°

10-24

12.3° 5.9°

1.44 mm

10-25

14.0° 8.8°

10-26

18.8° 8.3°

2.31 mm

10-27

11.5° 9.3°

Both models agree Avg diff: 2.4°C

Where are air quality stations near Sector 4?

Str. Rotunda, Titan, Romania

5.8 km PM2.5: 3.4 µg/m³

Str. Rotunda, Titan, Romania

5.8 km PM2.5: 5.8 µg/m³

Str. Rotunda, Titan, Romania

5.8 km PM2.5: 4.6 µg/m³

Calea Victoriei, Cercul Militar, Romania

6.8 km PM2.5: 5.5 µg/m³

Calea Victoriei, Cercul Militar, Romania

6.8 km PM2.5: 4.3 µg/m³

Str. Drumul Taberei, Drumul Taberei, Romania

7.7 km PM2.5: 4.6 µg/m³

Str. Lacul Morii, Lacul Morii, Romania

11.7 km PM2.5: 7.2 µg/m³

Greenfield AQI

17.6 km PM2.5: 27.5 µg/m³ PM10: 33.1 µg/m³

What cities are near Sector 4?

23 Popeşti-Leordeni 25 Sector 5 19 Bucharest 22 Sector 3 25 Sector 2 25 Pantelimon 27 Sector 6 38 Voluntari 42 Sector 1 40 Buftea

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-10-21T07:24 UTC.