Air pollution in India has long been at levels that are harmful to human health, with PM2.5 levels in the air in the capital, New Delhi, 16 times higher than the World Health Organization's safe limit.
Air pollution in India has long been at a level harmful to human health, with PM2 in the air of the capital New Delhi The content of 5 is 16 times higher than the safety standard of the World Health Organization.
India's air pollution has long been at the level of endangering human health, and the PM2.5 content in the air of the capital New Delhi is 16 times that of the World Health Organization safety standard.