Originating from coal-fired power plants, vehicle exhaust, factories and construction, air pollution is made up of chemicals and components that are hazardous to human health. Here's a quick summary of the major components of concern in air...

PM2.5 is a measurement of small particulate matter in the air. Here's everything you need to know about PM2.5, such as what it is, why it's important, and how to protect yourself from them.

Coal is the leading culprit of air pollution in China. Coal supplies 80% of the country’s electricity and 70% of its energy – as well as the lion's share of its air pollutants.

The solutions to air pollution are straightforward but they require action: quit coal, establish clear, strict air quality standards and ensure that cities which fail to meet national air quality targets provide plans stating when and how they...

Millions of people in China are breathing a hazardous cocktail of chemicals every day. These chemicals are caused by coal-fired power plants, heavy industry, factories and vehicles, and are responsible for heart disease, stroke, respiratory...

Greenpeace is one of the leading NGOs working on campaigns to reduce sources of air pollution in China and to change Hong Kong’s air pollution standards.