Test+8+-+Nitrate

﻿Nitrate

===Nitrate ions are found in freshwater samples that result from a variety of natural and manmade sources. We are finding the amount of concentration of nitrate ions in a water sample. Most nitrogen on earth is found in the atmosphere. It is in the form of nitrogen gas. Nitrates are an important source for plants and animals. Some sources include animal feedlots, runoff from fertilized fields, or treated wastewater being returned to streams. Nitrate levels usually found in freshwater is less than 1 mg/L, but manmade sources could be found above 3 mg/L. === = = =** Levels of nitrate in feed, water, and animal response. **= Considered safe, small health and production problems begin to occur || Potentially toxic || Dead animals || Considered safe || Possible health problems || Potentially toxic ||
 * || Nitrate Level ||
 * Feed || 0 to .20%
 * || .2% to 1.5%
 * || Greater than 1.5%
 * Water || <span style="color: #666666; font-family: 'Arial','sans-serif'; font-size: 10pt; line-height: 115%; margin: 0in 0in 10pt;">0 to 8 ppm
 * <span style="color: #666666; font-family: 'Arial','sans-serif'; font-size: 11.5pt; line-height: 115%; margin: 0in 0in 10pt;">Water || <span style="color: #666666; font-family: 'Arial','sans-serif'; font-size: 10pt; line-height: 115%; margin: 0in 0in 10pt;">0 to 8 ppm
 * || <span style="color: #666666; font-family: 'Arial','sans-serif'; font-size: 10pt; line-height: 115%; margin: 0in 0in 10pt;">8 to 100 ppm
 * || <span style="color: #666666; font-family: 'Arial','sans-serif'; font-size: 10pt; line-height: 115%; margin: 0in 0in 10pt;">100 ppm or greater

**<span style="font-family: 'Times New Roman','serif'; font-size: 12pt;">Nitrate comes from fertilizer, manure and urine, and in plants. Some of the plants are grass, hay, and corn silage. Nitrate is also a natural source. **

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<span style="font-family: TimesNewRomanPSMT; font-size: 12pt; line-height: 150%; margin: 0in 0in 10pt; tabstops: list .5in;">1. Position the computer safely away from the water. Keep water away from the computer at all times. =====

2. Prepare the computer for data collection by opening ÒTest 08 Nitrate ISEÓ from the experiment files of Logger // Pro //

3. Prepare the Nitrate Ion-Selective Electrode (ISE) for data collection.

5. You are now ready to collect nitrate concentration data.

6. If the nitrate concentration value displayed in the Meter window is fluctuating, determine the mean. (or average) value. To do this: a. Click Collect to begin a 10-second sampling run.

7. Return to Step 5 to obtain a second reading.
=**__Data and Calculating__**= (mg/L NO30-N) ||
 * Column ||  A  ||
 * Reading ||  Nitrate
 * 1 || 1.0 ||
 * 2 || 1.0 ||
 * Average || 1.0 ||

My conclusion is that the Free Man Run stream has a very low amout of nitrate which is good for this environment.