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… 26 6.3.1. Soil and dust 26 6.3.2. Air 26 6.3.3. Food and water 27 RECYCLING USED LEAD-ACID BATTERIES: HEALTH … by the United Nations Environment Programme on Safe Management of Used Lead Acid Batteries, held in Osaka, Japan, … The choice of method is determined by the available resources and the specific needs of the study in terms of …