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Air pollution hits Beijing(1/4)

2018-10-15 10:57:22 Ecns.cn Editor :Yao Lan

$Tourists visit the area around National Stadium, also known as the Bird\'s Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)$

Tourists visit the area around National Stadium, also known as the Bird's Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)

$Tourists visit the area around National Stadium, also known as the Bird\'s Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)$

Tourists visit the area around National Stadium, also known as the Bird's Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)

$Tourists visit the area around National Stadium, also known as the Bird\'s Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)$

Tourists visit the area around National Stadium, also known as the Bird's Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)

$Tourists visit the area around National Stadium, also known as the Bird\'s Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)$

Tourists visit the area around National Stadium, also known as the Bird's Nest, on a smoggy day in Beijing, Oct. 14, 2018. Serious air pollution was reported in Beijing on Sunday. (Photo: China News Service/Liu Guanguan)