Glossary
- calcareoussearch for term
- Resembling calcite or calcium carbonate, especially in hardness. Growing on limestone or in soil with lime.
- cationicsearch for term
- Relating to a positively charged ion.
- cautionsearch for term
- The signal word used on labels of slightly toxic or relatively nontoxic pesticides.
- certified applicatorsearch for term
- A person who has demonstrated through an examination process the ability to safely handle and apply restricted use pesticides.
- chemical namesearch for term
- The official name given to a chemical compound to distinguish it from other chemical compounds.
- chlorophyllsearch for term
- Green, light-absorbing molecules inside the chloroplasts of algae and green plants.
- chloroplastssearch for term
- Chlorophyll-containing plastids found in algal and green plant cells.
- cholorophyllsearch for term
- The green photosynthetic pigment found chiefly within plants.
- chronic exposuresearch for term
- Repeated low level exposures over an extended period of time. Aside from mortality, health effects can be reported in terms of reproductive harm and cancer risk.
- colorsearch for term
- Refers to the presence of dissolved organic materials (humic acids from decaying leaves) and also dissolved minerals, which can give water a reddish-brown or “tea” color. In some cases, these substances can make the water appear almost black.
- common namesearch for term
- The recognized, nonscientific name given to pesticides.
- contact herbicidesearch for term
- A herbicide that causes injury to plant tissue where contact occurs.
- contact timesearch for term
- Duration of herbicide exposure to the plant.
- contaminantssearch for term
- Substances that potentially threaten water quality such as; human and animal bacteria, pesticides, fertilizers, fuel spills, and other pollutants.
- convectional mixingsearch for term
- mixing of water due to changes in temperature (e.g., surface water cools and sinks at night). Water is constantly moving and mixing even on days with no wind.
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