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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 … at the school were very low with a mean of 34 mg/kg. Surface lead contamination was tested in 11 homes and a mean … washing done at home rather than at the workplace. While surface contamination with lead was lower at the school, …

… allergies or diseases and contributes to algae bloom in water ecosystems together with other sources of nitrogen … and transformations but also interactions with the earth´s surface. Therefore, re-emissions and transport and … lakes died due to increased acidification of the water. In the 1980s the acidification of forest soils was …