Real-time monitoring data collected by Greenpeace says that air quality inside five prominent schools in Delhi is at 'very unhealthy levels.' The air-quality monitoring survey carried out by the NGO inside the five schools found particulate matter 2.5 (PM2.5) levels to be four times the Indian safety limits and 10 times that of the World Health Organisation. The study was conducted at Greenfield Public School in east Delhi's Vivek Vihar, Mirambika School ...
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