GURUGRAM: Gurugram's air quality index rose to 174 on Tuesday, October 27, while neighbouring Manesar moved into the poor category at 219, according to the Central Pollution Control Board's 4 pm IST bulletin. The figures give residents two distinct local readings: Gurugram's monitoring network includes Sector 51, while Manesar's listed station is in Sector 2, IMT.
Gurugram remained in the moderate category despite an 18-point increase from Monday's 156. Manesar climbed 91 points from 128, crossing from moderate to poor. Both comparisons use the board's daily bulletins at the same reporting time, covering the average of the preceding 24 hours rather than an instantaneous measurement.
What the October 27 bulletin shows
The CPCB bulletin for October 27 lists all four Gurugram stations as participating, with PM2.5 and PM10 identified as the prominent pollutants. Manesar's single station participated, and its prominent pollutant was PM2.5. The bulletin attributes the underlying monitoring data to agencies including the Haryana State Pollution Control Board and India Meteorological Department.
| Location | October 26 AQI | October 27 AQI | October 27 category | Stations participating |
|---|---|---|---|---|
| Gurugram | 156 | 174 | Moderate | 4 of 4 |
| Manesar | 128 | 219 | Poor | 1 of 1 |
The October 26 bulletin also included all four Gurugram stations and Manesar's one station. Gurugram's prominent pollutant on Monday was PM2.5; Tuesday's entry lists PM10 as well. That change describes the published pollutant entry. These bulletins do not identify a particular construction site, industrial unit or other source as the cause of the rise.
Why the city average needs local context
The board's station directory names Gurugram's four locations as NISE Gwal Pahari, Sector 51, Teri Gram and Vikas Sadan. NISE Gwal Pahari is listed under IMD; the other three are under HSPCB. The Manesar station at Sector 2, IMT, is also listed under HSPCB.
CPCB cautions in the bulletin that air quality varies across locations within a city. It publishes an average for simplicity and directs readers to station-level information for a more local view. Consequently, 174 should not be presented as the individual reading at Sector 51, or as proof that every neighbourhood experienced the same conditions.
The board's explanation of the national AQI describes an index built from pollutant sub-indices, with the highest determining the overall AQI. The index number is not itself a PM2.5 concentration. Comparing the two daily editions shows the change in the reported index, without establishing the size of any change in a particular pollutant's concentration.
What the categories mean for residents
CPCB places readings from 101 to 200 in the moderate category and 201 to 300 in poor. Its health-impact table associates moderate air with breathing discomfort among people with lung disease, asthma or heart disease. For poor air, it identifies breathing discomfort among most people after prolonged exposure. These are the board's category descriptions, not diagnoses of individual residents.
Readers planning time outdoors can check the official station information alongside the dated city bulletin, especially when moving between Gurugram and Manesar. This report is a snapshot as of 4 pm IST on October 27. The bulletin does not forecast Wednesday's conditions or establish the status of separate pollution-control restrictions.
For the city's ongoing response to pollution, earlier coverage explains CAQM's Gurugram road-dust inspection, weekly pollution reports and site checks, and NHAI's NCR dust-control measures. Those actions provide local background; Tuesday's measured change comes from the two CPCB bulletins.
