Pfupiso yeBisphenol A BPA
Pakutanga yakagadzirwa muna 1936 se estrogen yakagadzirwa, bisphenol A (BPA) ikozvino inogadzirwa nehuwandu hwegore negore hunopfuura mabhiriyoni matanhatu emapaunzi. Bisphenol A BPA inonyanya kushandiswa sechivako chepurasitiki ye polycarbonate, inowanikwa muzvigadzirwa zvakaita semabhodhoro evana, mabhodhoro emvura, epoxy resins (machira anofukidza midziyo yechikafu), uye zvivharo zvemazino zvichena. Inoshandiswawo sekuwedzera mune mamwe marudzi epurasitiki ekugadzira matoyi evana.

Mamorekuru eBisphenol A BPA anoumba mapolymers kuburikidza ne "ester bonds" kuti agadzire mapurasitiki epolycarbonate. Sechinhu chakakosha chepolycarbonate, BPA ndiyo inonyanya kukosha mupurasitiki yerudzi urwu.

Bisphenol A - chinhu chikuru mukugadzirwa kwepolycarbonate, ichipa mapurasitiki pachena uye kuramba kukanganiswa. Dzvanya apa kuti uwane mitengo yakaderedzwa mutengo uye masevhisi echikwata cheBisphenol A.