Air Quality in Ulsan, South Korea

Overcast
16.3°C · 96.0% humidity
16.3°
Feels 16.3°
128
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
21 stations

Nearby Monitoring Stations

AQI Forecast
54 3pm
54
54
128 6pm
107
92
93 9pm
103
97
93 12am
90
88
87 3am
86
85
84 6am
67
67
66 9am
54
54
54 12pm
54
54
AD 728×90

Air Quality Index Trend

47h · 57 stn

Ulsan's air quality is influenced by industrial emissions, vehicle traffic, and regional pollution transport. Winter heating season and spring dust events typically create the most challenging air quality conditions. Current PM2.5 concentration in Ulsan is 3.1× the WHO 24-hour guideline of 15 µg/m³.

96.0%
Humidity
34.2 km/h
Wind SSW
1008.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
128
46.27 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Ulsan?

Temperature & Precipitation

PM2.5 Trend

47h · 57 stations
PM2.546.27 µg/m³ ×3.1 WHO
Unhealthy for sensitive groups
PM1066.15 µg/m³
Moderate
UV INDEX1.4
Low
AD 300×250
Station readings (21 stations within 25 km)
46.27
Median
26.92
Average
13.5
Low
50.1
High
PM2.5 µg/m³ · Model: 20.3 · Bias: -26.0

What is the 7-day forecast for Ulsan?

05-30
19.2° 16.3°
05-31
24.3° 16.4°
06-01
28.5° 17.8°
06-02
23.4° 16.5°
06-03
16.9° 14.1°
61.19 mm
06-04
26.7° 15.2°
17.0 mm
06-05
32.5° 17.8°
5.94 mm
Both models agree Avg diff: 3.2°C

Where are air quality stations near Ulsan?

104
Ulsan (울산)
0.5 km PM2.5: 36.7 µg/m³
57
Ulsan (울산)
0.5 km PM2.5: 15.0 µg/m³
54
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 13.5 µg/m³
55
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 14.0 µg/m³
91
Yaeum-dong, Nam-gu, Ulsan, South Korea (야음동 울산)
1.3 km PM2.5: 31.1 µg/m³
93
Sinjeong2-dong, Ulsan, South Korea (신정로 울산)
1.5 km PM2.5: 32.1 µg/m³
68
Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)
1.6 km PM2.5: 20.2 µg/m³
90
Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)
1.6 km PM2.5: 30.6 µg/m³
95
Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)
1.6 km PM2.5: 33.0 µg/m³
11
Samsan-dong, Nam-gu, Ulsan, South Korea (삼산동 울산)
1.6 km PM2.5: 2.6 µg/m³

What cities are near Ulsan?

67 Ungsang 64 Yangsan 78 Gijang 54 Gyeongju 66 Miryang 65 Kimhae 56 Yeonil 59 Pohang 84 Busan 59 Eisen
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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 2026-05-30T09:09 UTC.