Mumbai, Nov. 10 -- While directing a ban on firecrackers for the National Capital Region (NCR), the National Green Tribunal (NGT) directed cities and towns in India with 'moderate' air quality (or below) to only allow the sale of green crackers and restricted timings to burst them during festivals. Mumbai had recorded 'moderate' air quality during November 2019, according to SC Kollur, chief scientist, Maharashtra Pollution Control Board. The NGT published its November 5 order on Monday that specified that average air quality for each city was to be calculated for November 2019 and then declared whether it was 'poor' or 'moderate' or otherwise. For NCR and those cities with 'poor' (or worse) air quality, the NGT directed a total ban against the sale and use of firecrackers from November 9-10, 2020 to the midnight of November 30-December 1, which would be reviewed. P4...