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Road Salt Killing Trees

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A new study blames road salt for killing trees along Lake Tahoe roadways.

Preliminary results of the study conducted by the Nevada Department of Agriculture have been forwarded to the state Department of Transportation.

N-Dot engineer Thor Dyson says officials have always known that road salt kills trees. But the new study, he says, underscores the importance of limiting the use of road salt while trying to keep mountain highways safe.

Dyson says the agency has been able to cut its use of road salts in half by using a liquid solution as a storm approaches to prevent icing. But once road surfaces become caked with ice and snow, a mixture of sand and salt is used.