toxic big island school grounds

[ironyak]

Here's a noodle-scratcher kalakoa - how do you prove (or disprove) which source lead to the elevated blood levels? (other than asking the all-knowing leilanidude of course) No doubt this needs plenty of funded study to make sure we're not wasting any money on mitigation. But of course, if homes are identified (and irrefutably proven) as THE source of contamination, you'll support funding for mitigation there instead right?

Or is the whole exercise here just a justification to avoid any sense of moral or financial obligation?