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AQI Near CMWSSB Division 52, Chennai

Serving CMWSSB Division 52, Chennai (600021) · Live AQI

Last updated: April 16, 2026, 2 a.m.

Current AQI is 36 (Good).

Last 24 hours: low 11 · high 46

This station covers AQI for CMWSSB Division 52 (600021) in Chennai.

AQI Index
36
Good
24h low
11
24h high
46
30-day avg
38.9
Good Satisfactory Moderate Poor Very Poor Severe
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Areas Covered Near This Station

Air quality readings here represent nearby areas around CMWSSB Division 52 in Chennai.

Nearby locality: CMWSSB Division 52 · District: Chennai · Pincode: 600021

CMWSSB Division 52, Ward 52, Zone 5 Royapuram, Chennai Corporation, Chennai, Tamil Nadu, 600021, India

Pollutant Breakdown

PM10
36.0
Good
NO₂
13.0
Good
CO
23.0
Severe
O₃
17.0
Good
SO₂
6.0
Good

AQI Trends (Last 30 Days)

Based on station history. Latest history update: 16 Apr 2026, 2 AM.

30-day avg
38.9
Category
Good
Best day
20.0 (16 Apr)
Worst day
52.8 (17 Mar)
52.8
29.7
30.0
31.7
22.7
21.7
25.7
22.7
30.0
49.3
46.5
43.3
36.0
34.0
33.7
41.3
30.0
32.3
35.3
39.3
45.6
45.9
40.0
49.8
52.6
50.8
33.1
28.4
30.1
37.5
20.0
17 Mar
18 Mar
19 Mar
20 Mar
21 Mar
22 Mar
23 Mar
24 Mar
25 Mar
26 Mar
27 Mar
28 Mar
29 Mar
30 Mar
31 Mar
01 Apr
02 Apr
03 Apr
04 Apr
05 Apr
06 Apr
07 Apr
08 Apr
09 Apr
10 Apr
11 Apr
12 Apr
13 Apr
14 Apr
15 Apr
16 Apr

Category split: 3 Satisfactory, 28 Good

Good (≤50) Satisfactory (51–100) Moderate (101–200) Poor (201–300)

Nearby Stations

Kodungaiyur, Chennai - TNPCB
29
Manali, Chennai - CPCB
73
Manali Village, Chennai - TNPCB
80
Arumbakkam, Chennai - TNPCB
13
Velachery Res. Area, Chennai - CPCB
0
Gandhi Nagar_Ennore, Chennai - TNPCB
0

Top Polluted Stations in Chennai

Manali Village, Chennai - TNPCB
80
Manali, Chennai - CPCB
73
Perungudi, Chennai - TNPCB
37
Kodungaiyur, Chennai - TNPCB
29
Arumbakkam, Chennai - TNPCB
13

Top Polluted Cities (Latest)

Greater Noida
289
Charkhi Dadri
267
Khora
259
Manesar
256
Ballabgarh
254
Bileipada
227
Baghpat
221
Hapur
184
Bikaner
183
Ghaziabad
176
FAQs About Royapuram, Chennai - TNPCB Air Quality

The AQI at Royapuram, Chennai - TNPCB is 36, classified as Good. Air quality is healthy and safe for all.

PM10 is currently 36.0 at Royapuram, Chennai - TNPCB, labeled Good. This indicates presence of coarse dust and pollen. If you're sensitive to dust or allergens, consider wearing a mask or avoiding dusty areas.

Carbon Monoxide is measured at 23.0 mg/m³ here. While safe under 1 mg/m³, higher levels can reduce oxygen delivery to organs. Vulnerable groups should avoid enclosed, polluted spaces.

O₃ level is 17.0. While ozone protects us high in the atmosphere, ground-level ozone is harmful, especially during hot afternoons. It can trigger coughing and lung discomfort.

Nitrogen Dioxide is 13.0 µg/m³ – a marker of traffic pollution. If you're in a high-traffic area or sensitive to respiratory irritants, it's wise to avoid peak rush hours outdoors.

Data was last refreshed at April 16, 2026, 2 a.m.. Some stations update hourly; others may lag. Always check timestamp before taking action.
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📊 Data Source Attribution

Air quality data provided by the World Air Quality Index (WAQI) project and the Central Pollution Control Board (CPCB), sourced via data.gov.in.