It was actually published in this journal: https://en.wikipedia.org/wiki/International_Journal_of_Environmental_Research_and_Public_Health https://en.wikipedia.

It was actually published in this journal: https://en.wikipedia.org/wiki/International_Journal_of_Environmental_Research_and_Public_Health https://en.wikipedia.org/wiki/International_Journal_of_Envir.... The journal charges a fee to have one's paper processed. I'm not sure if that is typical in open access journals, but the analogy to self-publishing fiction makes me slightly uncomfortable.