Abstract
Toxicity of synthetic musks to glochidia and juvenile life stages of the freshwater mussel Lampsilis cardium
Annual Conference on Great Lakes Research, Vol.48
05/01/2005
Abstract
Polycylic musk fragrances are common additives to many consumer products. As a result of their widespread use and slow degradation rates, they are widely found in aquatic environments. This study reports on the toxicity of the polycyclic musks AHTN and HHCB to larval and juvenile life stages of the freshwater mussel Lampsilis cardium. In glochidia (larvae), 24-h LC50 values in replicate tests were 454 and 500 [mu]g AHTN/L and 1000 and 1871 [mu]g HHCB/L. Results for 48-h tests were similar to the 24-h tests. In 96-h tests with juveniles, we did not observe a dose-response relation between survival and either musk. However, two sublethal endpoints, the proportion affected and growth rate were affected by musk exposure. For example, EC50 values (based on activity) were 672 and 779 [mu]g AHTN/L. Similarly, the EC50 values (based on growth) were 708 and 108 m g AHTN/L and 563 and 153 m g HHCB/L. All adverse effects occurred at much higher concentrations than reported for natural waters.
Details
- Title: Subtitle
- Toxicity of synthetic musks to glochidia and juvenile life stages of the freshwater mussel Lampsilis cardium
- Creators
- M P GoodingT J NewtonM R BartschK C Hornbuckle
- Resource Type
- Abstract
- Publication Details
- Annual Conference on Great Lakes Research, Vol.48
- Language
- English
- Date published
- 05/01/2005
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9983997965602771
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