Air pollution in China has reached record levels, with dangerous acrid smog blanketing northeastern cities in the country.
In Changchun, the capital of China’s Jilin Province, levels of highly dangerous particulates known as PM2.5 on Monday reached around 50 times the maximum standard level announced by the World Health Organization.
The harmful particles, which can cause heart diseases, strokes, and lung ailments, reached 860 micrograms per cubic meter in Changchun, which has a population of around eight million. Nearby cities also reported very high levels of the hazardous particulates.
PM2.5 levels also soared in Liaoning Province in the north of the country.
Particulate levels increased as residents began burning coal to heat homes with the onset of winter, city environmental authorities said.
Locals in Northern China usually burn coal to heat homes in the winter. Increasing use of cars and emissions from factories are also major causes of air pollution in the Asian country.
Authorities have issued a warning and called on the residents to stay indoors. They also demanded that factories cut output in order to reduce pollution.