A new study on frogs released by the USGS has found trace amounts of pesticides in the tissue of frogs living in Sierra Nevada habitats. This marks the first time that many of these agricultural chemicals, including fungicides, have been found in the remote region, and they are believed to have been carried environmentally — by wind and rain — from California’s Central Valley, nearly 100 miles away.
The research, published in “Environmental Toxicology and Chemistry,” suggests that frogs may be accurate indicators of environmental health, as none of the pesticides found in the frog tissue were retrieved from the ponds which the frogs inhabited. Pesticides have been a suspected factor in the continuing decline of amphibians throughout the U.S.
Testing for the study was done with the help of Agilent’s 7890A GC and 5975 GC/MS.
For more information go to:
5977A Series GC/MSD System
Pesticide Accumulation in Sierra Nevada Frogs