Dr Ghebreyesus said that the simple act of breathing is killing 7 million people a year and harming billions more.
World Health Organisation (WHO) Director General Dr Tedros Adhanom Ghebreyesus said that air pollution is the “new tobacco.''
Over 90% of the world's population suffers from toxic air and it's creating a profound effect on the health of people, he said.
Ghebreyesus said that the simple act of breathing is killing 7 million people a year and harming billions more.
According to WHO director, no rich or poor can escape air pollution and that it is a silent public health emergency.
Most to be affected by this pollution are children and babies' developing bodies said Dr Maria Neira, WHO director for public health and the environment.
Tedro said that a clean and healthy environment is the single most important precondition for ensuring good health.
Next week, WHO is hosting its first global conference on air pollution and health in Geneva, which also includes a high-level action day at which nations and cities are expected to make new commitments to cut air pollution.