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PH levels in the river

PH levels in the river. Acids H + ions dissolved Corrosive to metals Sour taste pH less than 7. Bases OH - ions dissolved Soapy or slippery Bitter taste pH greater than 7. PH scale-. measure if acid, base or neutral 0 up to 7: acid 7 : neutral Above 7 to 14: base.

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PH levels in the river

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  1. PH levels in the river

  2. Acids • H+ ions dissolved • Corrosive to metals • Sour taste • pH less than 7 • Bases • OH- ions dissolved • Soapy or slippery • Bitter taste • pH greater than 7

  3. PH scale- • measure if acid, base or neutral • 0 up to 7: acid • 7: neutral • Above 7 to 14: base

  4. A change in one pH unit is 10X as acidic or basic • pH of 2 is 10X more acidic than a pH of 3 • pH of 2 is 100X more acidic than a pH of 4

  5. When pH is too low fish egg development is impaired and increases the amount of dissolved metals which can become toxic. • When pH is too high the water can dissolve organic materials including skin and scales.

  6. Drinking water pH between 6.5 and 8.5 • Most fish tolerate range between 5 to 9

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