New tracers can identify frack fluids in the environment

Scientists have developed geochemical tracers to identify hydraulic fracturing flowback fluids that have been spilled or released into the environment. The tracers have been field-tested at two sites and can distinguish fracking fluids from wastewater versus conventional wells or other sources. They give scientists new forensic tools to detect if fracking fluids are escaping into water supplies and what risks, if any, they might pose.

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