India, Aug. 3 -- The Delhi government has scrapped its plan of installing outdoor air purifiers at Nehru Park in south Delhi's Chanakyapuri, environment minister Manjinder Singh Sirsa said on Saturday, after a survey concluded that a majority of the visitors to the park wanted more trees for enhancing the air quality in the area.

In June, the government announced a pilot project to create a "clean air zone" in Nehru Park by installing 150 outdoor air purifiers inside. Subsequently, a survey was launched and responses were collected on July 19 and 20 by the Delhi Pollution Control Committee (DPCC) and visitors were asked if they think air purifiers should be installed.

The survey - for which 221 responses were received - had four options...