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Water Pollution

Water Pollution. The Problem. Humans use water bodies as an easy way to get rid of waste. What Happens to Waste in Water. Some liquid waste can be diluted reducing their concentration Materials that do not dissolve will be dispersed by waves and currents

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Water Pollution

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  1. Water Pollution

  2. The Problem • Humans use water bodies as an easy way to get rid of waste

  3. What Happens to Waste in Water • Some liquid waste can be diluted reducing their concentration • Materials that do not dissolve will be dispersed by waves and currents • Waste that can not be recycled by natural processes in the water will pollute the waters

  4. Terms to Know • Water pollutants- anything in the water that can harm organisms, including human beings • Water pollution- change in the physical or chemical condition of water or any change in its biological content that limits or prevents use or enjoyment of water

  5. Effects to Water • Alter taste, odor or color of water • Reduce dissolved oxygen for organisms living in water • Introduce substances hazardous to life • Threaten human health by contaminating water supply, swimming sites with disease causing microorganisms, and hazardous materials

  6. Types of Water Pollutants • Agricultural pollutants- fertilizers, pesticides, herbicides, and animal wastes from farms and ranches • Domestic pollutants- chemicals, debris, sewage, and wastes generated by people living in rural and urban areas • Industrial pollutants- debris and chemicals from mines, refineries, and manufacturing plants

  7. Pollutants Continued • Vehicular pollution- fuel emissions, oil spills, and ordinary trash • Boat & Ship pollution- discharge sewage and bilge water (wastewater used to wash out the inner hull)

  8. Aquatic Life Responses to Water Pollutants

  9. Biostimulation • Fertilizer in runoff promotes growth of plants and animals • Has the potential to create algal blooms (rapid growth of aquatic plants) • Potential for oxygen depletion if plants and animals exceed dissolved oxygen levels

  10. Dead Zones • Areas where fish, mollusk, and crustaceans suffocate due to continuous discharge of sewage and sludge

  11. Bioaccumulation • Large animals tend to have heavier concentrations of toxic chemicals because the amount of toxic chemicals found in an organism increases in a food chain from producers to consumers

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