Glossary for legend

[savannahramirez2]

Describe the solution you'd like
May we add a section to describe the toxins. I can see this as either in the legend box itself, as a popout when users hover over the legend box, or a glossary tab to help define the toxins? I think of folx who might not be too familiar with these facilities and want to do a quick glance to understand what each toxin is.

Describe alternatives you've considered
The current alternative is opening a new tab and doing a quick google search.