dad jeans alert <| sep |> Can you give me the breakdown ? I find it hard to believe that they aren ' t . Even if there is credible work to prove it the the same structure can apply simply because of the public nuisance value . Based on the information I foundOn average day the pollution is 200400 ppm diwali it went up to 1300 ppm p o l l u t i o n i n n e w d e l h i g e t s d a n g e r o u s l y h i g h d uringdiwalicelebrationsSo either the crackers added nothing and everything was blown in from outside this year , or we were lucky last year that the winds have been blowing it away . Instinctively , it makes perfect sense that crackers contribute at least to human perceptible pollution , but unless I find daily numbers for years I can ' t say for sure . If you have a source for that it would be helpful .