Really cool project. A quick note, I had to dig in your FAQ to find your definition for LOQ:

> "What does 'LOQ' mean in your results? > > Limit of Quantification (LOQ) is the lowest concentration we can reliably measure. Results below LOQ are marked "<LOQ" - this doesn't mean zero, just below our measurement threshold."

IMO this definition should be on every results page, since most of the pages have more LOQs than anything else.