Generate text that refutes this claim: The third run-way would cause noise and pollution problems  The high population density of the area around Heathrow means it is not an ideal location for a bigger airport. It makes sense to increase capacity in an area with lower population density instead of trying to do so within a location that is constrained by adjacent urbanized areas. Expanding Heathrow airport would mean increasing the problem of noise for the about 700,000 people living under the flight path. According to the HACAN report the Department for Transport only accepts that noise is a problem if a community is subjected to over 57 decibels of noise over the course of a year according to a 1985 Government study. In which case only the boroughs of Richmond and Hounslow would be affected. However this does not tie in with Londoner’s experiences. BAA says that 258,000 people are currently affected by high noise levels but the local community believes the real number is more like 1 million people affected. [1] Any argument that states that noise levels will not increase is flawed at best and outright fraudulent at worst, clearly a large expansion in the number of flights will increase the amount of noise and possibly the numbers affected.  [1] Johnson, Tim, ‘Approach Noise at Heathrow: Concentrating the Problem’, HACAN, March 2010,  p.12
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An additional run-way would not necessarily result in a large increase in noise pollution as this would depend on where the runways are located. If the runway was established to the West of its current location incoming planes would cross over areas not occupied by as planes would fly over the M25, the Poyle industrial estate, the Wraysbury reservoir and part of Stanwell Moor. On the other hand all the runways could be moved to the other side of the M25 and closely spaced potentially reducing the noise level over what it is at the moment even with three or four runways. [1] Therefore the noise complaints argument is overstated. No airport will ever be silent but with proposals to increase the number of airbus A380s, which are half as noisy as the 747 when taking off and only produce a quarter of the noise when landing, the noise argument really does lose a lot of credit. [2] We should also remember that a third runway will ease capacity problems so potentially allowing the first and last flights to be at more sociable hours than is currently the case.  [1] Leunig, Tim, ‘A bigger and quieter Heathrow is the answer to our aviation capacity problem’, The Spectator, 5 October 2012,   [2] Heathrow Media Centre, ‘Heathrow set to more than triple its A380 fleet by 2020’, 25 October 2012,