The degree to which road traffic pollutes urban air varies hugely, depending how much traffic is nearby. We’ve been mapping traffic pollution in detail across all New Zealand’s towns and cities over the last decade. In doing so we’ve been refining the methods to...
In February 2023 floods following Cyclone Gabrielle dumped 20 million tonnes of silt across 4 productive farming valleys in New Zealand’s Hawkes Bay. As recovery operations disturbed the silt dense clouds of dust posed a new hazard that lingered for months after the...
When it became clear that New Zealand’s successful elimination strategy was to be replaced with one of mitigation, it also became clear that we needed to understand the ventilation practices in our indoor spaces. As part of the Ministry of Health fund to improve...
Many teachers know that period 3 brain fog, when the children in front of them slump their shoulders and everything seems harder. It could be stale air. Without good ventilation contaminants can build up, including other people’s breath. And that breath could contain...