Hollywood actor and environmentalist Leonardo DiCaprio has stretched out help to groups attempting to raise awareness about the air pollution in Delhi and its damaging impacts. Delhi's AQI is expected to again touch severe levels by Thursday, as per figures.

The Oscar-winner gave a push to the endeavors of the groups with an Instagram post, " Over 1500 citizens gathered in at India Gate, in New Dehli, to demand immediate action on the cities' hazardous pollution levels. According to the World Health Organisation, air pollution in India is estimated to kill about 1.5 million people every year; these statistics make air pollution the fifth-largest killer in India."

Delhi has been doing battling debilitating air pollution with people suffering from adverse health impacts. The AQI had touched 494 on November 3, the most unsafe level since 2016. The subsequent spike originated from November 12 to 14 — when schools must be closed. A thick blanket of smog secured Delhi for a few days and individuals complained of breathlessness and burning sensation before wind overwhelmed toxins, underscoring how the Capital was to a great extent helpless against ominous climate conditions that exacerbate the impact of local sources of pollution and farm fires in Punjab and Haryana.

In 1998, DiCaprio set up the Leonardo DiCaprio Foundation (LDF) with the purpose of raising awareness about environmental issues. DiCaprio had visited India in 2015, to film a segment for his 2016 documentary film, Beyond the Flood. He had before tweeted about the Chennai water crisis in June this year.