https://pubmed.ncbi.nlm.nih.gov. This is the link to the search engine PubMed.
https://www.healthline.com/nutrition/what-is-bpaHi Maads,
I don't know the specific answers to your questions. However, I have a few suggestions regarding how you could go about learning. The most important thing is to avoid pseudoscience. If you want to read in-depth, journal articles, I recommend only reading articles that are peer-reviewed. If you use PubMed as a search engine, I suggest asking only for review articles (not the primary journal articles); there is a box that you can check on the lefthand column when you do a search at PubMed which limits your search to review articles only. You can use Boolean operators in your searches.
Even review articles can be challenging to read. Therefore, my suggestion is to use reliable, non-journal sources. Here are a few that come to mind: WebMD, In The Pipeline (Derek Lowe's blog at Science), Medscape, Mayoclinic.org, Healthline, and Johns Hopkins Medicine. I am sure that there are many more.
BPS is bisphenol A.