This is a reproduction from here:

Finally, I figured out that pollution is dangerous for us before it could be discovered by anyone else. It has also led me to believe that we MUST try and reduce it to a believably acceptable level as it is impossible to zero it.
Thanks for the applause.

I’d like to discuss Noise Pollution first. Major sources that affect us everyday are traffic horns, traffic noises, religious events in communities, air traffic and of course people talking on cellphones in confined public places. People in Mumbai have led from the front by taking in confidence traffic authorities and celebrating a No-Horn Day in April (see coverage on Karmayog and Businessworld). I’d like to see the great act being replicated across the country and maybe with a certain frequency (like First Monday of each month-Monday being the most maniacal of all days, if one can stay calm on Monday then he’s sure to have a nice week ahead).

What one may have also noticed is the shrill of the horns which is so different from the melody of the Ambys and Fiats during the 70s and 80s and even 800’s soft horn in its salad days. I strongly recommend that we should return to them as those horns were equally audible to people driving in front of any car as are today’s -only a bit less annoying. Today, if you were to (and you have been doing at lot of times) pass through a road in a busy street, the shrill of a horn of a single car makes you feel like stopping the driver and give him piece of your mind.

Action here is needed from automobile manufacturers. They must realise that high decibels noise is not a great spec to have on their fliers (and BTW, this does not reflect in their fliers, I wonder if it is within permitted decibel limits). Action is also needed from Transport Authorities in bringing down allowed noise for these honkers. Current limits are described here. But these are far more than those permissible in developed countries and this is an area where we can certainly beat developed nations with the least effort.