Smoke billowing from China’s smog: What we know so far

The air pollution in China has been a major topic of discussion over the past few weeks.

Chinese authorities have been calling for stricter air quality controls, while other nations have sought to contain the pollution and pressure the country to meet air quality standards set by the World Health Organization.

The air pollution from China has risen in recent weeks as the country struggles with smog and the first week of August marks the fourth consecutive day of record-breaking smog.

On Saturday, authorities in the southern province of Guangdong closed factories and other industrial sites and declared the pollution a health emergency.

China has said the pollution is a health hazard.

But the country’s pollution has grown even more pronounced over the last few weeks as it continues to struggle with severe air quality in recent months, especially in the capital, Beijing.

The government has blamed the air pollution on a number of factors, including a coal-fired power plant in Hunan province, the burning of large amounts of fuel for cars and other vehicles, and pollution from factories and factories from factories in other regions of the country.

But experts say the pollution stems from a large number of pollutants that are emitted in China every day from power plants, factories, vehicles and other manufacturing facilities.

China has blamed some of these pollutants on the burning or processing of coal, the countrys largest source of fossil fuels, as well as a number in the country of China’s industrialization.

The country has been struggling to reduce pollution for several years as it struggles with a chronic air pollution crisis.

In May, the World Meteorological Organization said air pollution was “at a record level,” and warned that “a major global health challenge lies ahead for China.”

The World Health Organisation has called on China to improve its air quality by 2030, but China has pledged to increase efforts to meet the WHO’s targets and set a national goal of reducing air pollution.

The WHO said it expected “significantly higher air quality” for the first half of the year as China and other Asian nations continued to tackle air pollution and China continued to expand its coal-burning power plants.