最佳答案 Air Quality Ranking Air Quality Ranking Introduction Air quality is an important issue that affects the health and well-being of peop...
Air Quality Ranking
Introduction
Air quality is an important issue that affects the health and well-being of people all around the world. With increasing industrialization, urbanization, and transportation, air pollution has become a major concern that needs to be addressed. To help people understand the state of air quality, organizations and governments have developed rankings and indexes to measure and compare air quality in different places.
The Top 5 Cities with the Best Air Quality
According to the 2019 World Air Quality Report by AirVisual and Greenpeace, the top 5 cities with the best air quality are:
- Cleanest: Wellington, New Zealand
- Average AQI (Air Quality Index): Melbourne, Australia
- Average AQI: Sydney, Australia
- Average AQI: Vancouver, Canada
- Average AQI: Calgary, Canada
These cities have shown exceptional commitment to reducing air pollution and have implemented measures such as promoting public transportation, reducing traffic congestion, and promoting clean energy sources. As a result, they have been able to achieve some of the best air quality in the world.
The Bottom 5 Cities with the Worst Air Quality
On the other end of the spectrum, the 5 cities with the worst air quality in the world are:
- Worst: Ghaziabad, India
- Average AQI: Hotan, China
- Average AQI: Gujranwala, Pakistan
- Average AQI: Faisalabad, Pakistan
- Average AQI: Delhi, India
These cities have struggled with high levels of air pollution due to factors such as industrialization, transportation, and poor waste management. Efforts to reduce air pollution in these cities have often been insufficient or ineffective, leading to continued high levels of pollution and health risks for residents.
