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.
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.
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.
The Environmental Health Offices testing in the Christchurch central city, photographed outside the damaged Stonehurst Backpackers.
The Environmental Health Offices testing in the Christchurch central city, photographed outside the damaged Stonehurst Backpackers.
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.