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… some effects, such as those from chemical pollutants, waste or excess nutrients, are more insidious, and their … water/oxygenation. � Wherever possible prevent addition of organic matter to water bodies. 2. Break carcase-maggot cycle … to be taken when strimming/cutting vegetation to prevent organic matter entering water bodies. � Wherever possible, …

… metres at low tide, as well as human-made wetlands such as waste-water treatment ponds and reservoirs. About this series … virus in the environment, especially in faecal and other organic material, with temperature, pH, salinity and UV … into drains that are connected to wetlands; iv) spreading organic manure from poultry farms as fertilizer on farmland; …