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Understanding Chemical Contaminants: Nitrates, Phosphates, and Total Dissolved Solids in Water

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This informative overview discusses the impact of chemical contaminants such as nitrates, phosphates, and total dissolved solids (TDS) on water quality. Nitrates, often from nitrogen fertilizers and waste, can lead to health issues like "blue-baby syndrome" at concentrations above 10 ppm. Phosphates enter water through waste and runoff, leading to eutrophication. TDS reflects water's mineral content, influenced by both natural and human activities. Understanding these contaminants is crucial for safeguarding public health and ensuring safe drinking water.

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Understanding Chemical Contaminants: Nitrates, Phosphates, and Total Dissolved Solids in Water

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  1. Chemical Contaminants nitrates, phosphates, total dissolved solids Nate Caldwell Shawn Sargent Zeke Plymesser

  2. Nitrates • Nitrogen fertilizers are used to enrich soils. They can be carried by rain and irrigation through the soil into ground water. Human and animal wastes also contribute to excessive levels. • Concentrations of more than 10ppm have been shown to cause “blue-baby syndrome”, a potentially life threatening blood disorder.

  3. Phosphates • There are many ways phosphates enter drinking water: • Human and animal waste • Phosphorus rich bedrock • Laundry/cleaning • Industrial effluents / fertilizer runoff • Eutrophication – natural aging process of a body of water • Cultural eutrophication – excellerated process caused by man’s addition of phosphates, nitrogen, and sediment in water

  4. Total Dissolved Solids • Total dissolved solids (TDS) – measure of the amount of minerals in water • Originates from natural sources: mineral springs, carbonate deposits, salt deposits, sea water intrusions • Unnatural sources: roadway salt, anti-skid materials, drinking water treatment chemicals, stormwaterand agricultural run-off, and wastewater discharges

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