Many popular tampon brands contain arsenic and lead: report SalonFirst study to measure toxic metals in tampons shows arsenic and lead, among other contaminants UC Berkeley School of Public HealthToxic Tampon Warning As Arsenic and Lead Found in Common Menstrual Products NewsweekAre Tampons Safe? Researchers Find Lead, Arsenic in US, UK and EU BloombergArsenic, lead and other toxic metals detected in tampons, study finds CBS News