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Postal Colony Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Chennai

Last Updated: 2026-07-19 08:11:24 (Local Time)

This is a Community Monitor data by Anonymous Contributor

Live AQI

463AQI (US)

Air Quality is

Hazardous

PM2.5 : 307 µg/m³

pm10 : 339 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

29 °C

Last Updated: 2026-07-19 08:11:24 (Local Time)

Rank155^th

Currently, Chennai ranks 155^th among the most polluted cities globally.

Map

Postal Colony

Major Air Pollutants
Postal Colony

Particulate Matter(PM₂.₅)

307µg/m³

Particulate Matter(PM₁₀)

339µg/m³

TVOC(TVOC)

4.457ppm

Noise(NOISE)

49dB

AQI Graph

Historical Air Quality Data
Postal Colony

24 Hours

AQI (US)

Postal Colony

AQI (US)

18-07-2026Time19-07-2026

Time	Postal Colony
8:31am	156
9:01am	151
9:31am	144
10:01am	107
10:31am	99
11:01am	105
11:31am	82
12:01pm	79
12:31pm	75
1:01pm	75
1:31pm	71
2:01pm	80
2:31pm	80
3:01pm	81
3:31pm	94
4:01pm	86
4:31pm	82
5:01pm	83
5:31pm	84
6:01pm	92
6:31pm	99
7:01pm	110
7:31pm	115
8:01pm	119
8:31pm	115
9:01pm	115
9:31pm	122
10:01pm	115
10:31pm	117
11:01pm	101
11:31pm	101
12:01am	100
12:31am	100
1:01am	98
1:31am	98
2:01am	95
2:31am	95
3:01am	92
3:31am	92
4:01am	89
4:31am	89
5:01am	85
5:31am	156
6:01am	112
6:31am	171
7:01am	154
7:31am	105
8:01am	223

Min. AQI (US)1:31pm

223

Max. AQI (US)8:01am

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Postal Colony, Chennai, Tamil Nadu, India

AQI (US)

India's Metro Cities
Air Quality Index

Ahmedabad

Bangalore

Chennai

109

Hyderabad

Kolkata

Mumbai

New Delhi

132

Pune

Air Quality Calendar 2026
Postal Colony

2026

AQI (US)

Health Advice For People Living In
Postal Colony

1.6Cigarettes per day

Weekly 11.2 Cigarettes

Monthly 48 Cigarettes

Breathing the air in this location is as harmful as smoking 1.6 cigarettes a day.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air PurifierTurn On

Car FilterMust

N95 MaskMust

Stay IndoorMust

Prevent Health Problems: Understand Your Risks

Postal Colony

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026
India

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Budaun, Uttar Pradesh

Hazardous

24xabove Standard

Muzaffarnagar, Uttar Pradesh

Unhealthy

8xabove Standard

Greater Noida, Uttar Pradesh

Unhealthy

6xabove Standard

Ghaziabad, Uttar Pradesh

Unhealthy

6xabove Standard

Dhanbad, Jharkhand

Unhealthy

6xabove Standard

Sonipat, Haryana

Unhealthy

6xabove Standard

Anantapur, Andhra Pradesh

Unhealthy

6xabove Standard

Bhiwani, Haryana

Unhealthy

6xabove Standard

Ludhiana, Punjab

Unhealthy

6xabove Standard

10.

Aligarh, Uttar Pradesh

Unhealthy

5xabove Standard

Last Updated: 19 Jul 2026, 02:43 AM

AQI City Rankings

Air Quality Solutions For Postal Colony
Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

Prana Air offers the solutions of air quality monitoring and clean air machine for Postal Colony

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Postal Colony's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Postal Colony

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Postal Colony?

The current real-time AQI (US) level in Postal Colony is 463 (Hazardous). This was last updated 2026-07-19 08:11:24 (Local Time).

2. When was the best AQI (US) level in Postal Colony in the last 24 hours?

The best AQI (US) level was 71 (Moderate) at 1:31 PM, Jul 18, 2026 (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Postal Colony in the last 24 hours?

The worst AQI (US) level was 223 (Severe) at 8:01 AM (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Postal Colony during last 24 hours?

The AQI (US) levels in Postal Colony have been fluctuating throughout the last 24 hours. The levels have increased by highest 223 at 8:01 AM (Local Time), lowest 71 at 1:31 PM, Jul 18, 2026 (Local Time).

5. What actions are recommended as per the current AQI (US) level in Postal Colony?

Current AQI (US) levels are warning of emergency conditions. Avoid all outdoor activities, stay indoors with windows and doors closed, use air purifiers, and wear high-quality masks to protect yourself.