Harvard University landscape contractor uses hand-held gas-powered hedge trimmer. This device was not included in the recent amendment to the noise ordinance for Cambridge, MA. It makes as much noise as a leaf blower, but the elected geniuses of the Cambridge City Council failed to make policy to protect residents from excessive noise. Instead they gave up their policy-making power to the City Manager who's policy is what the landscaping industry wants. Listen to this. I was unable to capture the gas fumes on video tape that came in through the windows to share with you.