This week on Green Desk Mitchell speaks to Auckland Council’s water manager Andrew Chin about the Auckland’s Lake Pupuke. There are concerns regarding a potential toxic algal bloom in Lake Pupuke which could have serious implications for the health of the lake, its users and its biodiversity.

The Auckland Council have recently applied for a resource consent to place flocculants in Lake Pupuke in case a toxic algal bloom does occur. Mitchell begins by asking Mr Chin about toxic algal blooms, what they are and how they form.