Over the past months we have noticed a marked increase in the amount and frequency of noisy light planes flying over the residential area of Dingley Village. During weekdays, this is around every five minutes. Today - a Sunday morning, it is literally every minute! It is almost as it the planes are flying a circuit that includes straight through Dingley. We would like to know if the increase in air traffic is due to planes being transferred to Moorabbin from Essendon Airport, and\or frequency of flight training. We also have noted that there are no EPA sound monitors whatsoever in the residential areas surrounding Moorabbin Airport (as opposed to the six around Essendon Airport). When we moved here 35 years ago, the airport was there - however the amount of air traffic is nowhere near what it has become in 2011. What is local goverment going to do about this noise pollution?