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Cotan Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-09-28 09:51:01 (Local Time)

Live AQI

106AQI (US)

Air Quality is

Poor

PM2.5 : 38 µg/m³

pm10 : 51 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

16 °C

Last Updated: 2026-09-28 09:51:01 (Local Time)

Rank257^th

Currently, Xian ranks 257^th among the cities with the highest AQI levels in the world.

Map

Cotan

Major Air Pollutants
Cotan

Particulate Matter(PM₂.₅)

38µg/m³

Particulate Matter(PM₁₀)

51µg/m³

Carbon Monoxide(CO)

596ppb

Sulfur Dioxide(SO₂)

1ppb

Nitrogen Dioxide(NO₂)

11ppb

Ozone(O₃)

6ppb

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AQI Graph

Historical Air Quality Data
Cotan

24 Hours

AQI (US)

Cotan

AQI (US)

27-09-2026Time28-09-2026

Time	Cotan
10:01am	67
10:31am	67
11:01am	71
11:31am	75
12:01pm	71
12:31pm	86
1:01pm	88
1:31pm	97
2:01pm	99
2:31pm	106
3:01pm	99
3:31pm	99
4:01pm	106
4:31pm	101
5:01pm	109
5:31pm	101
6:01pm	109
6:31pm	106
7:01pm	109
7:31pm	116
8:01pm	106
8:31pm	114
9:01pm	101
9:31pm	114
10:01pm	126
10:31pm	121
11:01pm	129
11:31pm	131
12:01am	126
12:31am	134
1:01am	134
1:31am	136
2:01am	136
2:31am	124
3:01am	129
3:31am	114
4:01am	134
4:31am	126
5:01am	126
5:31am	121
6:01am	126
6:31am	116
7:01am	114
7:31am	109
8:01am	114
8:31am	101
9:01am	109
9:31am	106

Min. AQI (US)10:01am

136

Max. AQI (US)1:31am

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Cotan, Xian, Shaanxi, China

AQI (US)

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Air Quality Index

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Air Quality Calendar 2026
Cotan

2026

AQI (US)

Health Advice For People Living In
Cotan

1.8Cigarettes per day

Weekly 12.6 Cigarettes

Monthly 54 Cigarettes

Breathing the air in this location is as harmful as smoking 1.8 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

Cotan

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
China

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

Hebi, Henan

Unhealthy

5xabove Standard

Handan, Hebei

Unhealthy

5xabove Standard

Dengtalu, Henan

Unhealthy

5xabove Standard

Changzhi, Shanxi

Unhealthy

5xabove Standard

Wuan, Hebei

Unhealthy

4xabove Standard

Shahe, Hebei

Unhealthy

4xabove Standard

Jincheng, Shanxi

Unhealthy

4xabove Standard

Yucheng, Shandong

Unhealthy

4xabove Standard

Xingtai, Hebei

Poor

4xabove Standard

10.

Qingnian, Shandong

Poor

4xabove Standard

Last Updated: 28 Sept 2026, 01:57 AM

AQI City Rankings

Air Quality Solutions For Cotan
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 Cotan

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.

Cotan's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Cotan

Frequently Asked Questions About Air Quality

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

The current real-time AQI (US) level in Cotan is 106 (Poor) due to recent rainfall by 3.01mm/hr. This was last updated 2026-09-28 09:51:01 (Local Time).

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

The best AQI (US) level was 67 (Moderate) at 10:01 AM, Sep 27, 2026 (Local Time) during the last 24 hours.

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

The worst AQI (US) level was 136 (Poor) at 1:31 AM (Local Time) during the last 24 hours.

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

The AQI (US) levels in Cotan have been fluctuating throughout the last 24 hours. The levels have increased by highest 136 at 1:31 AM (Local Time), lowest 67 at 10:01 AM, Sep 27, 2026 (Local Time).

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

Current AQI (US) levels are unhealthy for Sensitive individuals, they should reduce prolonged or heavy outdoor exertion.