---
station_id: cpcb-5073
raw_id: 5073
name: "Railway Colony"
city: "Guwahati"
state: ""
country: India
provider: cpcb
provider_name: "Central Pollution Control Board, Government of India"
lat: 26.181742
lon: 91.78063
aqi: 23
band: good
updated: 2026-04-08T09:05:37.272Z
updated_local: "8 Apr 2026, 14:35 IST"
source: https://oaq.notf.in
mirror: https://oaq.pages.dev/s/cpcb/5073
---

# Railway Colony — Air Quality

Current AQI: **23 (Good)** as of 8 Apr 2026, 14:35 IST.

Located in Guwahati, India. Source: **Central Pollution Control Board, Government of India** via OAQ.

## Pollutants

| Pollutant | Value | Unit |
|---|---|---|
| PM2.5 | 14.09 | µg/m³ |
| PM10 | 20.4 | µg/m³ |
| NO₂ | 2.61 | µg/m³ |
| SO₂ | 8.76 | µg/m³ |
| CO | 0 | mg/m³ |
| O₃ | 5.19 | µg/m³ |
| NH₃ | 2.4 | µg/m³ |

## Location

- Coordinates: 26.1817° N, 91.7806° E

## Source

Data from Central Pollution Control Board, Government of India via OAQ Data Broker (https://oaq.notf.in). Mirrored hourly. Licensed CC BY 4.0.

Part of an open-source mirror — see https://oaq.pages.dev/about.