Reduce Water Pollution !

Principal sources of water pollution are:
• industrial discharge of chemical wastes and byproducts
• discharge of poorly-treated or untreated sewage
• surface runoff containing pesticides
• slash and burn farming practice, which is often an element within shifting cultivation agricultural systems
• surface runoff containing spilled petroleum products
• surface runoff from construction sites, farms, or paved and other impervious surfaces e.g. silt
• discharge of contaminated and/or heated water used for industrial processes
• acid rain caused by industrial discharge of sulfur dioxide (by burning high-sulfur fossil fuels)
• excess nutrients added by runoff containing detergents or fertilizers
• underground storage tank leakage, leading to soil contamination, thence aquifer contamination.