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Tony Marley from the Olympic Delivery Authority tells us about all the changes being made at Stratford Regional Station.<title>The air quality impact of the Olympic Park is a subject of great importance</title>
HRH The Duke of Edinburgh visits the Olympic Park for the first time to see the progress being made at the Olympic Stadium and Aquatics Centre.
Paralympic gold medallist David Weir visits the Olympic Stadium for the first time.
BBC presenters including Huw Edwards, Bill Turnbull and Gary Lineker visited the Olympic Park see the progress being made.<br/>
Keep up to date with London 2012's progress from October to December 2009<br/>
Find out how materials are transported to the Olympic Park by water and rail.
On her first visit to the Olympic Park since construction began, Her Majesty The Queen met staff, viewed progress on the Olympic Stadium and planted the first tree in the Parklands.
On Saturday 31 October, London 2012 celebrates 1,000 days to go to the Opening Ceremony of the Olympic Games.
Progress on the various London 2012 utilities projects reaches a milestone as the electrical substation delivers power to the Park.
