LYCOS RETRIEVER 
Chlorophyll: Algaes
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Chlorophyll is a molecule found in all eukaryotic photosynthetic organisms, but its helper pigments are not necessary for photosynthesis. There are several variants of chlorophyll used by different algaes and photosynthetic bacteria, all classified primarily by colour.
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Chlorophyll conditions are normally high in nutrients, generally phosphorus and nitrogen. These nutrients reason the algae to grow or bloom. High levels of nitrogen and phosphorus can be indicators of pollution from synthetic sources, such as septic system leakage, badly functioning wastewater treatment plants, or fertilizer runoff. Chlorophyll measurement can be utilized as an indirect indicator of nutrient levels.
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Real-time, in vivo monitoring of Chlorophyll a using a Hydrolab DataSonde is extremely valuable for helping a researcher understand the productivity of a lake. The advantage offered when using a multi-parameter DataSonde with the Chlorophyll sensor is that the researcher can ... monitor parameters such as Dissolved Oxygen and pH at the same time as their Chlorophyll measurements. These additional parameters are important to fully understand the productivity of the lake because the amount of oxygen that is being produced or absorbed, as well as the changes in pH that coincide with algal productivity, are critically important to completing the full picture of the lake's health.
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Chlorophyll poses no known direct threat to human health. There are some rare cases where algae can become high enough in abundance to cause concern. However, toxic algae are generally not a problem.
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Algaes