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Nitrates

Nitrates. By: Nikolas Dobies , Alex Horowitz, Shorna. Nitrates-What they are. Chemical Formula-NO3- Nitrates are minerals needed by plants to produce protein in order for the plant to grow Nitrates may be obtained by the plant through the root hair cells on roots by active transport.

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Nitrates

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  1. Nitrates By: Nikolas Dobies, Alex Horowitz, Shorna

  2. Nitrates-What they are • Chemical Formula-NO3- • Nitrates are minerals needed by plants to produce protein in order for the plant to grow • Nitrates may be obtained by the plant through the root hair cells on roots by active transport

  3. Acceptable Ranges • Low levels of nitrate are usually present in water • Sometimes higher contents of nitrates are also found which can be harmful to fish and cause death • Nitrate is less toxic than ammonia • Levels of 5ppm are good! • Levels of 30ppm or over are bad!!

  4. Possible Sources of Nitrates and Problems with Excess Nitrates • The primary source is surface runoff from agricultural or landscaped areas that received excess nitrate fertilizer • This can lead to damages in the function of ecosystems, favoring some animals over others • A nitrate level of 5ppm can inhibit growth • A level of 30ppm is bad and can be very harmful to the environment!

  5. Ways to Alleviate Nitrate Imbalance • To alleviate imbalance farmers would have to use less fertilizer on plants because it contains a lot of nitrates • When farmers fertilize their plants the rain washes off the fertilizer which is then transported to rivers • Ion exchange is most frequently used treatment for nitrate removal

  6. Nitrogen Fixing Bacteria • Bacteria are the only organisms capable of taking gaseous nitrogen and combining it with hydrogen which makes ammonia • Nitrogen fixing bacteria are essential for all ecosystems • Some plants have bacteria which infects their roots, but in return for sugars from the plant, nitrogen can be used by the plant for growth

  7. Works Cited • http://www.biology-online.org/dictionary/Nitrates • http://www.grida.no/publications/ug/water2/page/3255/aspx • http://www.health.state.mn.us/divs/eh/hazardous/topics/sacnitrate.html#Nitrate • http://en.wikipedia.org/wiki/Nitrate • http://en.wikipedia.org/wiki/Nitrogen_fixation • http://www.remco.com/ix.htm

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