Artificial lungs turn black in 24hrs in Lucknow; Delhi took 6 days
A white human lungs 'model' to measure air pollution turned black within 24 hours of installation in Lucknow. "We thought it will take at least six days to change colour, as it happened in New Delhi, but here it just took 24 hours. Today's AQI is 320, which is very poor air quality," said NGO 'The Climate Agenda' on Friday.