Sunset color lavender in Nanjing

The photo of the purple sunset in the fuzzy smoke in the ancient capital of Nanjing is causing a fever on China's social network.

"Who explains what is happening to the sky?" a user of Weibo - China's largest social network talking about yesterday's photo of a fever. Tens of thousands of others also posted comments on this phenomenon.

"It is a new color, smoke pollution purple," one replied.

According to Guardian, even Xinhua, the Chinese state news agency posted an unusual photo on its Twitter account with the headline: "Pink smoke?"

Purple sky in Nanjing.(Photo: Weibo).

Some people reacted angrily, criticizing the Chinese media using pink lenses to observe the pollution crisis in the country. Last week, the capital of Beijing had to issue a red alert for the second time because the air quality index (AI) reached 500, while the health safety level was from 0-50.

"The government does not offer effective measures to control the haze, and we have to pay with our own health," wrote a Weibo user.

Nanjing's Modern Express newspaper said the lavender sky of the city was caused by the brilliant sunset combined with the haze created, not by a specific contaminant.

"You don't need to be afraid," explained Liu Hongnian, a scientist at Nanjing University. Haze pollution has only three types, white, gray and brown. The pink sky does not threaten the safety of city people.

Nanjing, which means the southern capital, is the capital of Jiangsu Province, China, with a population of about 6.5 million and an area of ​​more than 6,500 square kilometers.

Pollution levels of Nanjing on December 22 and December 23 are higher than the World Health Organization's (WHO) safe level, and many schools have to cancel outdoor activities.