Environmental Health Officers outside the Christchurch Cathedral in Cathedral Square.
Environmental Health Officers collecting air readings in the Christchurch central city.
An Environmental Health Officer collecting air readings in the Christchurch central city.
An Environmental Health Officer collecting air readings in the Christchurch central city.
An Environmental Health Officer taking a reading outside the Christchurch Cathedral in Cathedral Square.
An Environmental Health Officer taking a reading outside the Christchurch Cathedral in Cathedral Square.
The Environmental Health Offices testing in the Christchurch central city, photographed outside the damaged Stonehurst Backpackers.
An Environmental Health Officer collecting air readings on Gloucester Street, in the Christchurch central city.
An Environmental Health Officer collecting air readings on Gloucester Street, in the Christchurch central city.
The Environmental Health Offices testing in the Christchurch central city, photographed outside the damaged Stonehurst Backpackers.
Environmental Health Officers collecting air readings outside Map World, on the corner of Manchester and Gloucester Streets.
A member of the New Zealand Defence Force's Communications Group, speaking to an Environmental Health Officer on Gloucester Street.
Environmental Health Offices from the Royal New Zealand Air Force taping filters to their high-visibility vests. The filters collect dust and fibres from the air, which will then be tested for health risks.
Environmental Health Offices from the Royal New Zealand Air Force taping filters to their high-visibility vests. The filters collect dust and fibres from the air, which will then be tested for health risks.
A digger clearing rubble from a demolished building in the central city.
A worker in a digger, clearing rubble from a demolished building in the central city.
A photograph of a New Zealand Fire Service Environment Protection Unit truck parked outside Latimer Square.
Actor Tony Robinson at the "I hope Christchurch will..." blackboard, a mural on the corner of Colombo and Tuam Streets. Members of the public were invited to fill in the gaps with what they would like to see in the rebuilt city. Messages can be seen, such as, "I want sun!", "Embrace the new", "Retain its unique character", "Rise, and rise, and rise", "Rebuild to be better and stronger than before!" and "Environmentally friendly".