Ujjain, · Live air quality
We show Ujjain's air the moment a fresh CPCB station reports.
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Ujjain Air Quality Index (AQI) Today
Live air quality in Ujjain, — real-time AQI, dominant pollutant, PM2.5 & PM10 levels and a plain-English health advisory, computed from CPCB data.
We publish a live "safe to go out" answer for Ujjain as soon as a fresh CPCB station reading is available.
24-hour AQI graph
min 177 · max 208Hourly AQI recorded each hour by DailyAQI (local time). Fills to a rolling 24 hours.
7-day AQI trend
Daily peak AQI recorded by DailyAQI since tracking began, coloured by category. History grows to a rolling 30 days.
Air quality calendar
A colour-coded calendar of daily air quality builds here as we record each day — check back as the month fills in.
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AQI categories (India scale)
| AQI | Category | Associated health impact |
|---|---|---|
| 0–50 | Good | Air quality is considered satisfactory and air pollution poses little or no risk. |
| 51–100 | Satisfactory | Acceptable air quality; minor breathing discomfort possible for unusually sensitive people. |
| 101–200 | Moderate | May cause breathing discomfort to people with lung disease such as asthma, and to children and older adults. |
| 201–300 | Poor | May cause breathing discomfort to most people on prolonged exposure. |
| 301–400 | Very Poor | May cause respiratory illness on prolonged exposure; effects more pronounced for people with lung and heart disease. |
| 401–500 | Severe | Affects healthy people and seriously impacts those with existing diseases; avoid outdoor activity. |
Monitoring location
Approximate location of the monitoring station(s) feeding this reading. Map © OpenStreetMap.
About air quality in Ujjain
This page tracks the Ujjain Air Quality Index using measurements from Central Pollution Control Board (CPCB) monitoring stations, published through the Government of India's open-data portal. The AQI is a single number from 0 to 500 that summarises how polluted the air is and what it means for health, based on the concentrations of key pollutants — fine particulate matter (PM2.5), coarse particulate matter (PM10), nitrogen dioxide (NO₂), ground-level ozone (O₃), carbon monoxide (CO) and sulphur dioxide (SO₂).
Air quality in Ujjain changes through the day and across seasons. Levels are typically worse in the early morning and late evening when cooler, calmer air traps pollutants near the ground, and across North India they rise sharply in winter (roughly October to February) when temperature inversions, crop-residue burning and festival activity combine. Summer and the monsoon usually bring cleaner air as rain washes out particulates and stronger winds disperse them. Checking the current reading before outdoor exercise, a school run or a commute helps you decide whether to adjust timing, wear a mask, or keep windows closed.
We only display a number when a recent station reading exists — if you see "data updating", it means we are waiting on a fresh value rather than showing an estimate.
Frequently asked questions
What is the AQI in Ujjain today?
We show Ujjain's AQI whenever a fresh CPCB station reading is available; live data is updating.
Is it safe to go outside in Ujjain today?
We publish a live "safe to go out" answer for Ujjain as soon as a fresh CPCB station reading is available.
What is the main pollutant in Ujjain?
The dominant pollutant is shown once live data is available.
How is Ujjain's AQI calculated?
Each pollutant's 24-hour concentration is converted to a sub-index using CPCB breakpoints; the city AQI is the highest sub-index. See our methodology.