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Effects of road de-icing salt (NaCl) on larval wood frogs (Rana sylvatica).
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sanzo, Domenico Hecnar, Stephen J. |
| Copyright Year | 2006 |
| Abstract | Vast networks of roads cover the earth and have numerous environmental effects including pollution. A major component of road runoff in northern countries is salt (mostly NaCl) used as a winter de-icing agent, but few studies of effects of road salts on aquatic organisms exist. Amphibians require aquatic habitats and chemical pollution is implicated as a major factor in global population declines. We exposed wood frog tadpoles to NaCl. Tests revealed 96-h LC50 values of 2,636 and 5,109 mg/l and tadpoles experienced reduced activity, weight, and displayed physical abnormalities. A 90 d chronic experiment revealed significantly lower survivorship, decreased time to metamorphosis, reduced weight and activity, and increased physical abnormalities with increasing salt concentration (0.00, 0.39, 77.50, 1,030.00 mg/l). Road salts had toxic effects on larvae at environmentally realistic concentrations with potentially far-ranging ecological impacts. More studies on the effects of road salts are warranted. |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.envpol.2005.07.013 |
| Alternate Webpage(s) | http://shecnar.lakeheadu.ca/uploads/docs/EvirPoll2006.pdf |
| Alternate Webpage(s) | http://faculty.bennington.edu/~sherman/Adaptation%20and%20extinction/Effects%20of%20road%20de-icing%20salt%20(NaCl)%20on%20larval%20wood%20frogs%202006.pdf |
| PubMed reference number | 16159689 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.envpol.2005.07.013 |
| Journal | Medline |
| Volume Number | 140 |
| Issue Number | 2 |
| Journal | Environmental pollution |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
