Ozone Impact

The National Green Tribunal has sought a response from the Centre on the "feasibility and mechanism" for implementation of the CPCB's recommendations for controlling ozone levels, which were found beyond the permissible limits in some areas of the national capital. The green body earlier directed the Central Pollution Control Board (CPCB) and other agencies to submit relevant material explaining why ozone levels in these areas exceeded permissible limits. It had also sought "targeted approaches" that could be adopted for these areas. In an order dated December 23, a bench of NGT Chairperson Justice Prakash Shrivastava and expert member A Senthil Vel noted that the CPCB had submitted a report dated December 20 about the measures for control of ozone levels along with some suggestions or recommendations. The CPCB report said, "It has been recognised globally that control of ozone is only possible through control of its precursors. It is also evident that control of local sources of it

The study warned that SpaceX's Starlink satellites emit significant amounts of aluminium oxide gas, which leads to reactions with chlorine, ultimately destroying ozone molecules

The study noted these emissions might be reduced or avoided by reducing leakages associated with HFC production and by properly destroying any co-produced CFCs

The ozone count in central Kolkata was 60 per cent more than the safe levels, raising concerns about public health and the threat it poses to the iconic Victoria Memorial.

The Union Cabinet decided to develop a national strategy for phasing down HFCs by 2023, so that industries can draw a roadmap for action

On World Ozone Day, have a look at the various causes, effects and solutions of ozone layer depletion

This year the slogan for World Ozone Day is 'Ozone For Life'

Ozone levels have doubled since pre-industrial times due to anthropogenic emissions