Influence of current velocity on cadmium accumulation by an aquatic moss and the consequences for its use as a biomonitor

Article Abstract:

Aquatic mosses are good indicators of contaminant concentrations in water. Contrary to established notions, the authors found that current velocity has no influence on the accumulation of Cd in aquatic mosses. Scientists should note these findings when using aquatic mosses as metal biometers.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Refining and testing a trace metal biomonitor (Chaoborus) in highly acidic lakes

Article Abstract:

Biomonitor organisms can be utilized to measure bioavailable contaminant concentrations given that a reliable model is established between organism and environmental contaminant concentrates. A recently suggested model intended to relate Cd concentrations in a suggested biomonitor, the Chaoborus insect, is examined to free cadmium ion concentrations, in lakes. In highly acidic metal-contaminated lakes, Cd concentrations in the biomonitor appear to be depressed even with the usually high Cd2+concentrations in these lakes.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Accumulation of Heavy Metals by Individually Analyzed Bacterial Cells and Associated Nonliving Material in Polluted Lake Sediments

Article Abstract:

Researchers in Canada used energy-dispersive X-ray microanalysis and transmission electron microscopy to investigate the accumulation of Cu and other heavy metals in bacteria residing within polluted lakes in Northern Ontario.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: