Search results
Search results
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Total Kjeldahl Nitrogen (as N)
https://ohiowatersheds.osu.edu/node/1539
GENERAL INFORMATION Total Kjeldahl Nitrogen or TKN is defined as total organic nitrogen and ammonia nitrogen. Nitrogen occurs in wastewater and ground water in several forms, including inorganic forms like nitrate (NO 3), nitrite (NO 2), and ammonia (NH ...
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2,4-D (2,4-Dichlorophenoxyacetic Acid)
https://ohiowatersheds.osu.edu/node/1546
GENERAL INFORMATION 2,4-D is a colorless, odorless powder. 2,4-D is used as a herbicide for the control of broad-leaf weeds in agriculture, and for control of woody plants along roadsides, railways, and utilities rights of way. The major source of 2,4-D i ...
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2,4,5-TP (Silvex)
https://ohiowatersheds.osu.edu/node/1547
GENERAL INFORMATION 2,4,5-TP is a white organic powder with little odor. Until Silvex was banned in 1985, the greatest use of 2,4,5-TP was as a post emergence herbicide for control of woody plants and broadleaf herbaceous weeds in rice and bluegrass turf, ...
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Nitrite (as N)
https://ohiowatersheds.osu.edu/node/1537
HEALTH ADVISORY Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue baby syndrome. 1.00 ppm mg/L ppm Nutrient MCL ...
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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 ...