Hi Jake, your question is ...

Published August 8, 2017 13:09 by Dr Simon Bray, Co Director AQASS Ltd Visiting Researcher (marine ecology/pollution) University of Southampton

Hi Jake, your question is slightly confusing. Firstly on what basis do you know the algae are non-toxic, and secondly, in the latter part of your question, you ask what actions are needed to "prevent the algal bloom from emitting toxins". So, is it toxic, or not is my/your first query and, as has already been mentioned, it’s not just the toxicity that is the issue, but the DO with potential ecological implications.

Are you worried about the toxins re human interaction, or in relation to benthic/pelagic community?

Finally, I am not quite sure what you are asking re where this has occurred, ie is the algal bloom in the receiving waters (suggest sudden overload of nutrients) or in the water from which the emergency flooding was pumped? I suspect the former, which may implicate excess nutrients from a terrestrial source (?) thus it may be a relatively short lived phenomenon. Rather too many assumptions from me, but a bit more info would help.