Size comparisons for PM particles

The human eye contains structures that allow it to perceive light, movement and colour differences.

Both science and mātauranga pūtaiao build knowledge and understanding about our world. Often, we start with curiosity about something we’ve noticed and we want to find...

Seaweek is New Zealand’s annual national week about the sea. It is coordinated by the Sir Peter Blake Marine Education and Recreation Centre (MERC) and includes...

Microplastics are very small plastic particles generally less than 5 mm in size. There are significant levels of microplastics polluting the ocean, freshwater and land, and...

Particulates are liquid or solid particles fine enough to be suspended in the air. They may be naturally formed – for example, in Canterbury, two sources...