𝔖 Bobbio Scriptorium
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Effect of mercury on algal growth rates

✍ Scribed by Patrick J. Hannan; Constance Patouillet

Publisher
John Wiley and Sons
Year
1972
Tongue
English
Weight
393 KB
Volume
14
Category
Article
ISSN
0006-3592

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✦ Synopsis

In experiments with one freshwater (Chlorella pyrenoidosa) and three marine organisms (Phaeodactylum tricornutum, Cyclotella mna, and Chaetoceros galvestmensis), mercury was more toxic than the other metals tested (silver, cadmium, lead, and copper) ; and its toxicity is comparatively irreversible. Growth was monitored by changes in fluorescence of the cultures over a 3-day test period. The toxicity of the mercury varied inversely with the concentrations of nutrients present. Preliminary experiments indicate that mercury in the form of mercuric chloride is more toxic than as dimethylmercury.

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