Tony Canales on lead isotope ratios
No, the whole condor thing ain't over yet...
At the 10-12-2007 meeting of the California Fish and Game Commission, Tony refuted the argument that lead found in condors can only come from lead. He documents at least three other sources of environmental lead that matches the range of isotopic ratios found in the birds.
Ironically, one of the sources of lead that can explain the lead in the condors' blood is one of the first environmental issues addressed in California: Hydraulic mining. You fans of Pale Rider will remember that the LaHood mining operation in the film was a hydraulic mine. Hydraulic mining was banned in the State following complaints from farmers that the runoff was harming their fields. It turns out that the runoff is still having an effect on the environment.
At the 10-12-2007 meeting of the California Fish and Game Commission, Tony refuted the argument that lead found in condors can only come from lead. He documents at least three other sources of environmental lead that matches the range of isotopic ratios found in the birds.
Ironically, one of the sources of lead that can explain the lead in the condors' blood is one of the first environmental issues addressed in California: Hydraulic mining. You fans of Pale Rider will remember that the LaHood mining operation in the film was a hydraulic mine. Hydraulic mining was banned in the State following complaints from farmers that the runoff was harming their fields. It turns out that the runoff is still having an effect on the environment.
posted by Steve at
2:40 AM
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