Photograph captioned by BeckerFraserPhotos, "ACC Building, Oxford Terrace with an exhortation to wear a dust mask and helmet when working there".
Photograph captioned by Fairfax, "Aftermath of Christchurch earthquake as residents start to clean up. Dust from the drying silt in Kingsford Street Burwood".
Shops around the Merivale Mall area have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
Shops around the Merivale Mall area have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
Shops around the Merivale Mall area have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
Shops around the Merivale Mall area have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
Shops around the Merivale Mall area have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
A water jet sprays over the rubble of the Crowne Plaza Hotel to prevent dust. The photographer comments, "The Crowne Plaza Hotel being demolished".
Dust rises from fallen buildings on Tuam Street shortly after the 22 February earthquake. The photographer comments, "Just after the aftershock settled on Tuesday afternoon, myself and colleagues fled our Tuam Street office to absolute devastation outside. We couldn't see more than a block in either direction due to the clouds of dust that had arisen from buildings that had just collapsed. Above is looking along Tuam Street to the corner of Manchester Street where a number of buildings have just collapsed. This is 1pm and the sky was previously reasonably clear - this is all dust. From here, we picked up our vehicles from the CCC car park and headed out to get out of the chaos to a position where we could check on loved ones".
A man sweeps up brick dust outside a building on London Street in Lyttelton. The building's owner has written "Not for demo" on its side.
A house in Richmond being demolished. The diggers bucket is being hosed down to prevent dust. The photographer comments, "The end of 393 River Rd".
A dust-covered table in Man's Bakery and Cafe on Hereford Street. On top sits the remains of a lunch abandoned on 22 February 2011.
A photograph captioned by BeckerFraserPhotos, "Loading the remains of 107 Manchester Street into a demolition truck. The water is to keep the dust down.".
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
Dust-covered tables in Man's Bakery and Cafe on Hereford Street. Many of the tables still hold the remains of lunches abandoned on 22 February 2011.
Dust and chips of plaster on the pews inside the Durham Street Methodist Church. One of the building's windows has been braced and weather proofed with timber.
A photograph captioned by BeckerFraserPhotos, "A truck spraying water to keep the fine insidious liquefaction dust out of the air along Bower Avenue in New Brighton".
People walking past the shops around the Merivale Mall area which have been cordoned off. Dust cloud coming from a collapsed building can be seen in the background.
A photograph of a sign on a portaloo in Latimer Square. The sign reads, "Do not dispose of dust masks in the toilet/bathroom, as they are blocking pumps".
A house in Richmond being demolished. A worker hoses down rubble in the back of a truck to prevent dust. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. Workers hose down the house to prevent dust. The back of the house has been demolished. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. Workers hose down the house to prevent dust. The back of the house has been demolished. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. Workers hose down the house to prevent dust. The back of the house has been demolished. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. Workers hose down the house to prevent dust. The back of the house has been demolished. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. Workers hose down the house to prevent dust. The back of the house has been demolished. The photographer comments, "The end of 393 River Rd".
A house in Richmond being demolished. A worker hoses down the rubble to prevent dust. All but one corner has been demolished. The photographer comments, "The end of 393 River Rd".
A view of Hereford Street, looking east. On the road is a sprinkler system, used to spray rubble carried by trucks out of the CBD, in order to keep dust levels down.
A view of the interior of the Durham Street Methodist Church. The benches and pieces of wood have been covered in dust and chips of plaster from the building's walls and ceiling.
A hazard board for a house being demolished in Richmond. Hazards listed are dust, noise, excavator, trucks, visitors and danger from equipment working. The photographer comments, "The end of 393 River Rd".