What is the most polluted city in India?

According to real-time AQI data, Delhi tops the list of India's most polluted cities, with an alarming AQI of 404, classified as "Hazardous." Alongside Delhi, other northern cities like Ghaziabad, Gurgaon, and Noida also struggle with severe air quality, especially during winter.

What is the top 10 cleanest city?

Listed below are 10 of the world's cleanest cities, each paving the way toward a more sustainable future for our planet.

1. Copenhagen, Denmark. ...
2. Singapore. ...
3. Calgary, Canada. ...
4. Helsinki, Finland. ...
5. Wellington, New Zealand. ...
6. Zurich, Switzerland. ...
7. Oslo, Norway. ...
8. Dubai, United Arab Emirates.

Which city in India has 0 to 50 AQI?

Cities in India with consistently low Air Quality Index (AQI) of 0-50 are typically hill stations or coastal towns with abundant greenery, like Shillong, Coorg (Madikeri), Aizawl, Ooty, and Gangtok, often featuring clean air due to geography, less industry, and less traffic, though daily readings can vary. Some smaller towns and cities in South India (Karnataka, Kerala) and the Northeast also frequently report excellent AQI levels, offering a break from pollution.
 

Why is AQI so poor in India?

The problem is attributed to a mix of factors such as industrial emissions, vehicle exhaust, dropping temperatures, low wind speeds and the seasonal burning of crop stubble in neighbouring states. Average AQI in Delhi early on Monday was 471, according to the government's Safar app.

Which country is no 1 in cleanliness?

While rankings vary slightly by report and year, Estonia often appears as the #1 cleanest country in recent analyses like the 2024 Environmental Performance Index (EPI) for its strong environmental policies and air quality, with other consistent top performers including Denmark, Finland, Switzerland, and Luxembourg, all leading in areas like renewable energy, waste management, and natural resource protection.
 

India Has 8 Out Of 10 Most Polluted Cities In The World. Why? Can It Beat Air Pollution? | Insight

Which city has the best air?

Rankings: 25 Cities with the Best Air Quality

• Zürich, Switzerland (0.7 µg/m3)
• Vitória, Brazil (2.2 µg/m3)
• Hobart, Australia (2.4 µg/m3)
• Halifax, Canada (3.8 µg/m3)
• Vancouver, Canada (3.8 µg/m3)
• Saint-Denis, Réunion (3.8 µg/m3)
• Surrey, Canada (4.0 µg/m3)
• Tampere, Finland (4.0 µg/m3)

What is the top 10 safest city in the world?

The top safest cities vary slightly by report, but consistently feature Copenhagen, Tokyo, Singapore, Sydney, and Zurich/Reykjavik, often leading in different categories like personal safety, digital security, or health. Recent reports highlight Abu Dhabi (CEOWORLD 2025), with Asian/Middle Eastern cities like Taipei, Doha, and Singapore scoring highly, while European hubs like Copenhagen, Zurich, and Amsterdam, plus cities like Tokyo, Sydney, and Toronto, frequently appear in top global rankings. 

Is Hyderabad a polluted city?

Hyderabad has been the third most polluted mega city among the country's six during the winter months of 2024-25. It stands behind Delhi and Kolkata, despite being in an advantageous position - climate and ventilation wise, reveals a study carried out by the Centre for Science and Environment, Delhi.

Which is the no. 1 cleanest city in the world?

There's no single "World No. 1 Clean City" as rankings vary by criteria (air quality, waste management, public opinion), but Singapore, Copenhagen, Dubai, and Zürich frequently rank at the top for overall cleanliness, while Kraków (Poland) is noted for cleanliness reviews, and Batam (Indonesia) for air quality, highlighting different facets of urban cleanliness. 

What is 💦 pollution?

💦 Pollution, or water pollution, is the contamination of water bodies (like rivers, lakes, oceans, and groundwater) by harmful substances—such as chemicals, microorganisms, trash, or excess nutrients—that degrade water quality, making it toxic to humans, wildlife, and the environment, often from industrial waste, agricultural runoff, sewage, and plastic.
 

Who air quality 7 countries?

Australia, New Zealand and Estonia were among the handful of countries with a yearly average of no more than 5µg of PM2. 5 per cubic metre, along with Iceland and some small island states. The most polluted countries were Chad, Bangladesh, Pakistan, the Democratic Republic of the Congo and India. PM2.

Is India highly polluted?

As per the World Air Quality Report 2023, of the 100 most polluted cities in the world, 83 are in India.

Where is the purest air in India?

List of Cities with Best Air Quality in India (2024)

1. Aizawl (13.8 μg/m3)
2. Gangtok (13.8 μg/m3)
3. Raichur (13.9 μg/m3)
4. Koppal (16.3 μg/m3)
5. Gadag (17 μg/m3)
6. Thiruvananthapuram (17.2 μg/m3)
7. Madikeri (18 μg/m3)
8. Vijayapura (18 μg/m3)

What is a bad AQI?

The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 or below represents good air quality, while an AQI value over 300 represents hazardous air quality.

Which state has the cleanest air?

Hawaii consistently ranks as the state with the best air quality due to its remote Pacific location, trade winds dispersing pollutants, and focus on renewable energy, with nearby states like Alaska, Maine, and Vermont also frequently cited for excellent air quality because of low population density and strong environmental efforts. 

Is China a clean country?

According to the Chinese Ministry of Health, industrial pollution has made cancer China's leading cause of death. Every year, ambient air pollution alone kills hundreds of thousands of citizens. 500 million people in China are without safe and clean drinking water.

What is the safest country in the world?

Iceland. Ranked number one since 2008, Iceland remains the world's most peaceful nation, leading across all three domains: safety and security, ongoing conflict and militarisation. It even recorded a 2% improvement this year, widening the gap from the second-place country on the list.

Is India air safe to breathe?

Air pollution in India has reached alarming levels and has started seriously affecting lung health across all ages. The growing concentration of harmful pollutants is leading to a wide range of respiratory diseases, from COPD and asthma to lung cancer and bronchitis.

Is China at war with air pollution?

China has had astonishing success improving its air quality since declaring a “war on pollution” in 2013. From 2014 to 2022, average levels of fine particulate matter (PM2. 5) dropped faster than in any other country, according to the University of Chicago's Air Quality Life Index.

Why is Delhi air so bad?

Several parts of Delhi recorded an air quality index (AQI) of 400 and even 450 – a level considered as “severe” under international pollution standards. Every winter, air pollution in Delhi spikes around this time when cold air traps smoke and fumes from fireworks, stubble burning and heavy traffic.