Search results
Search results
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Nitrate (as N)
https://ohiowatersheds.osu.edu/node/1536
GENERAL INFORMATION Nitrates (NO 3) in drinking water usually originates from fertilizers or from animal or human wastes. Nitrate concentrations in water tend to be highest in areas of intensive agriculture or where there is a high density of septic syste ...
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Iron
https://ohiowatersheds.osu.edu/node/1519
GENERAL INFORMATION Iron is common in the earth's crust. Iron is often found in water because of the large amount of iron present in the soil, sediment, and bedrock. It is also found in water because corrosive water will pick up iron from pipes. Iron ...
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Chemical Oxygen Demand (COD)
https://ohiowatersheds.osu.edu/node/1535
GENERAL INFORMATION Chemical oxygen demand (COD) is an indicator test commonly used to indirectly measure the amount of organic compound pollutants in water. Most applications of COD determine the amount of organic pollutants found in surface water (e.g. ...
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Uranium
https://ohiowatersheds.osu.edu/node/1544
GENERAL INFORMATION Most drinking water sources have very low levels of uranium if shallow wells (under oxidizing conditions). Most uranium is naturally occurring, although contamination of drinking water sources from human-made nuclear materials can also ...
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Radon
https://ohiowatersheds.osu.edu/node/1545
GENERAL INFORMATION Radon is a gas that has no color, odor, or taste and comes from the natural radioactive breakdown of uranium in the ground. You can be exposed to radon through air and water. Radon is also found in small amounts in outdoor air. Most of ...
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Combined radium
https://ohiowatersheds.osu.edu/node/1543
GENERAL INFORMATION Most drinking water sources have very low levels of radioactive contaminants ("radionuclides"), most of which are naturally occurring, although contamination of drinking water sources from human-made nuclear materials can als ...
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Beta/photon emitters
https://ohiowatersheds.osu.edu/node/1541
GENERAL INFORMATION Most drinking water sources have very low levels of radioactive contaminants ("radionuclides"), most of which are naturally occurring, although contamination of drinking water sources from human-made nuclear materials can als ...
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Alpha emitters
https://ohiowatersheds.osu.edu/node/1542
GENERAL INFORMATION Most drinking water sources have very low levels of radioactive contaminants ("radionuclides"), most of which are naturally occurring, although contamination of drinking water sources from human-made nuclear materials can als ...
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Thallium
https://ohiowatersheds.osu.edu/node/1526
GENERAL INFORMATION Thallium is a metal found in natural deposits such as ores containing other elements. The major sources of thallium in drinking water are leaching from ore-processing sites; and discharge from electronics, glass, and drug factories. HE ...
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Strontium
https://ohiowatersheds.osu.edu/node/1525
GENERAL INFORMATION Strontium is a naturally occurring element found in rocks, soil, dust, coal, and oil. Naturally occurring strontium is not radioactive and is either referred to as stable strontium or strontium. Strontium in the environment exists in f ...