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… recovery of the world’s ecosystems in future from mercury contamination. Global climate change may also complicate the … oxidation and reduction of mercury, but temperature and biological interactions are also likely to be involved to … Oxidized mercury in surface waters is reduced by biological and photochemical processes to the elemental form …

… robust programmes to identify, assess and remediate soil contamination, the implications (European Environment and … and nutrient cycling, food production, genetic diversity, biological pest control, and pollination. A recent example of … Planet Figure 10: Trends in organic pollution (measured as biological oxygen demand concentrations) in rivers between …