Flooding from Hurricane Harvey overwhelmed existing safety precautions at many chemical plants.

According to Business Insider, the floods released 4.6 million pounds of chemicals overall--some carcinogenic.

Advocates have expressed concern about potential health effects, but federal and state representatives said there is little reason for alarm.

The EPA is working with Texas state regulators to clean up spills from a dozen industrial facilities.

However, representatives say it's still too early to estimate the amounts spilled.

http://www.businessinsider.com/oil-refineries-hit-harvey-releasing-chemi...

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