Air in cities near Icheon
- 24 kmYongin →14 µg/m³
- 32 kmSeongnam →13 µg/m³
- 37 kmSuwon →13 µg/m³
- 43 kmWonju →18 µg/m³
- 43 kmPyeongtaek →17 µg/m³
- 44 kmEumseong →
South Korea · The summary is refreshed every 15 minutes.
No current value: fewer than four sensors at different places are reporting now.
Open methodology and data in JSON: Methodology and data sources · JSON
In Icheon the air is moderate right now (approximate, US EPA scale). From 18:00 to 04:00 local time the city mean PM2.5 stayed roughly level: from 34.3 to 32.0 µg/m³. The highest hour was 21:00 with 46.0 µg/m³.
Light wind (1 m/s) in the evening or at night, as the air cools, possibly traps particles near the ground (a temperature inversion). Cold weather (3°C) possibly means more heating, a common source of particles.
Weather now: cloudy, 3°C, wind 1 m/s, humidity 100%. No major change in the wind is expected in the coming hours. By 18:00 the temperature will be about 11°C.
Written automatically at 06:13 local time (21:13 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
1 m/s
Wind, ESE
0 mm
Precipitation today
40/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
15°/2°
Index by time of day
62/100Moderate
17°/6°
Index by time of day
56/100Moderate
12°/8°
Index by time of day
52/100Moderate
18°/7°
Index by time of day
48/100Moderate
16°/6°
Index by time of day
51/100Moderate
15°/7°
Index by time of day
48/100Moderate
Forecast of conditions that trap pollution near the surface
3°
Cloudy. Feels like 1°C
1m/sWind from the ESE
1m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
South Korea
529
SeoulSouth Korea
34BusanSouth Korea
30IncheonSouth Korea
27Cities with the most sensors
All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.
Daily mean PM2.5 of the city sensors, µg/m³
Click a day to see its date and value.
South Korea · City ranking · All pilot cities
Fresh data for Icheon are insufficient (last update: 08:45 local time, 23:45 UTC). Open the map for the latest readings of individual sensors.
From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.
The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.
The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.
“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.
Source: public Atmy monitoring data. Methodology and data sources · Data terms