Environmental

What environmental concern is associated with older Nevada mining towns and residential properties near former mines?

AExcessive radon from volcanic rock formations
BContamination from abandoned mine tailings containing arsenic, lead, and other heavy metals that can leach into soil and groundwater✓ Correct
CPCB contamination from electrical equipment
DAsbestos from naturally occurring desert soil

Explanation

Nevada's extensive mining history has left numerous abandoned mine sites with tailings — waste rock from ore processing — that may contain heavy metals like arsenic, lead, mercury, and cyanide. Properties near historic mining areas in towns like Virginia City, Tonopah, or Goldfield may have contaminated soil or water.

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