 Shares of Dollar Tree Inc. DLTR, -1.01 fell 1.0 in afternoon trading Friday, and the Canada-listed shares of Dollarama Inc. DOL, -0.45 DLMAF, -0.07 slipped 0.4, after Canadas Environment Defence announced this week a report that said heavy metals, such as lead, and other toxic chemicals were found in products sold at the discount retailers. The report from the environmental advocacy group revealed that phthalates, bisphenols, and PFAS perfluoroalkyl and polyfluoroalkyl substances, also known as hazardous forever chemicals, were present in a variety of food, toys, recess and daycare items. 