Air quality
Air quality in Khimki today
Updated
Moderate (US AQI 75) Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. Model estimate for Mon, Oct 26, 4:00 am (01:00 UTC).
Live AQI, PM2.5, PM10 and ozone for Khimki, Moscow Oblast, Russia, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 75 Moderate
- PM2.5
- 17 µg/m³ 1.1× WHO 24-h guideline
- PM10
- 23 µg/m³
- Ozone
- 26 µg/m³
- Dominant pollutant
- PM2.5 sub-index 75
- Best hour today
- 6:00 am AQI 73
- European AQI
- 41
Air quality in Khimki right now
Right now the modelled US Air Quality Index for Khimki, Moscow Oblast, Russia is 75, which falls in the "Moderate" band (up to 100). Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
The index is driven mainly by PM2.5, whose own sub-index is 75. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 17 µg/m³, 1.1 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 23 µg/m³ against a guideline of 45; ozone is 26 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 27 µg/m³ (above the 24-hour guideline of 25).
Also this hour: carbon monoxide 192 µg/m³.
NASA FIRMS shows 16 fire hotspots within 300 km in the last day (nearest about 43 km), but particle levels are not elevated enough to point to smoke right now.
Khimki AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 73 around Mon 6:00 am to 79 around Tue 4:00 am, staying "Moderate" throughout.
The following day is expected to be worse, averaging about 97 against 74 for the next 24 hours.
| Local time (Europe/Moscow) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Mon 4:00 am | 75 | Moderate | 16.6 | 23 | 26 |
| Mon 7:00 am | 73 | Moderate | 20.5 | 30 | 3 |
| Mon 10:00 am | 73 | Moderate | 26.9 | 32 | 16 |
| Mon 1:00 pm | 73 | Moderate | 21.6 | 27 | 32 |
| Mon 4:00 pm | 73 | Moderate | 23.3 | 29 | 26 |
| Mon 7:00 pm | 74 | Moderate | 28.4 | 36 | 1 |
| Mon 10:00 pm | 75 | Moderate | 25.8 | 32 | 1 |
| Tue 1:00 am | 77 | Moderate | 25.2 | 31 | 7 |
| Tue 4:00 am | 79 | Moderate | 27.1 | 36 | 8 |
| Tue 7:00 am | 81 | Moderate | 32.8 | 46 | 1 |
| Tue 10:00 am | 84 | Moderate | 50.6 | 61 | 2 |
| Tue 1:00 pm | 89 | Moderate | 38.1 | 64 | 10 |
| Tue 4:00 pm | 94 | Moderate | 49.2 | 68 | 3 |
| Tue 7:00 pm | 101 | Unhealthy for Sensitive Groups | 69 | 94 | 0 |
| Tue 10:00 pm | 114 | Unhealthy for Sensitive Groups | 59.2 | 77 | 0 |
| Wed 1:00 am | 124 | Unhealthy for Sensitive Groups | 51.3 | 60 | 0 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in Khimki today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 6:00 am (AQI 73, Moderate) and the worst around 9:00 pm (AQI 75). The difference across the day is small, so timing matters little.
Khimki vs the rest of Russia
Across 76 Russia cities we track, the average US AQI right now is 46 (Good). Khimki at 75 is 29 points worse than average.
For context, the median across 3,909 cities worldwide is 57.
Air quality in cities near Khimki
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Moscow | 20 km | 83 | Moderate | 21.6 |
| Cherëmushki | 27 km | 83 | Moderate | 21.6 |
| Tver | 142 km | 47 | Good | 5.9 |
| Kaluga | 169 km | 37 | Good | 5.5 |
| Vladimir | 187 km | 23 | Good | 2.8 |
| Tula | 190 km | 54 | Moderate | 6.3 |
| Ryazan’ | 202 km | 30 | Good | 4.6 |
| Yaroslavl | 243 km | 59 | Moderate | 13 |
Model vs measured
The nearest measured PM2.5 reading is 2.2 µg/m³ from Sensor.Community (median of 84 sensors), centred about 19 km from the city centre. That is 14.4 µg/m³ below the model estimate of 17 µg/m³. Low-cost sensors can read high in humid air; reference monitors are more accurate but sparser.
Advice for sensitive groups
At 75, most people are fine outdoors. If you are unusually sensitive to PM2.5, keep long or intense workouts to the cleaner hours shown above.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Khimki
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), Sensor.Community, NASA FIRMS.