---
station_id: cpcb-5364
raw_id: 5364
name: "Royapuram"
city: "Chennai"
state: ""
country: India
provider: cpcb
provider_name: "Central Pollution Control Board, Government of India"
lat: 13.1036
lon: 80.2909
aqi: 95
band: satisfactory
yll_years: 5.1
updated: 2026-11-12T15:05:11.110Z
updated_local: "12 Nov 2026, 20:35 IST"
source: https://oaq.notf.in
mirror: https://mugilu.live/s/cpcb/5364
---

# Royapuram: Air Quality

Current AQI: **95 (Satisfactory)** as of 12 Nov 2026, 20:35 IST.

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

## Pollutants

| Pollutant | Value | Unit |
|---|---|---|
| PM2.5 | 57 | µg/m³ |
| PM10 | 87.99 | µg/m³ |
| NO₂ | 12.46 | µg/m³ |
| SO₂ | 2.29 | µg/m³ |
| O₃ | 32.59 | µg/m³ |
| NH₃ | 16.67 | µg/m³ |
| CO | 0.58 | mg/m³ |

## Estimated health impact (AQLI)

If this PM2.5 level (57 µg/m³) persisted as the annual average, the Air Quality Life Index estimates **5.10 years** of life expectancy lost vs. the WHO 5 µg/m³ guideline.

Formula: `max(0, PM2.5 − 5) × 0.098 years`. From Ebenstein et al. 2017 PNAS and Greenstone & Fan 2018 (U Chicago EPIC, [aqli.epic.uchicago.edu](https://aqli.epic.uchicago.edu)). This is a long-term exposure model applied to a live snapshot. Treat as an order-of-magnitude indication.

## Location

- Coordinates: 13.1036° N, 80.2909° 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://mugilu.live/about.