Vietnam Defoliation Health Hazard Remains Under Study
United Press International reports Hanoi officials and scientists urge continued investigation into the health and ecological effects of chemical defoliants used in Vietnam. The exposure includes 24,5-T contaminated with dioxin and possible links to liver cancer, mutations, and cancer risk through ecological pathways. Dr Ton Thang Tung notes northward spread via rivers and ocean currents could affect northern civilians.