6PPD is a chemical that prevents automotive tires from degrading (i.e., breaking down) and helps them last longer. When 6PPD is exposed to air, it reacts with ozone to create 6PPD-quinone (also known as 6PPD-q). 6PPD-q is lethal to coho salmon and can contaminate water systems.

 

 

See what StormwaterBIOCHAR™ can do for 6PPD-q.

Soil Mixture Confirmed To Completely Remove Coho-killing 6PPD-q From Street Runoff

By Andy Walgamott     March 27, 2025          

 

a second article

Scientists discover 'potential breakthrough' in protecting salmon from urban killer

by Amanda Zhou     March 31, 2025          

 

 

The biochar in these article is using StormwaterBIOCHAR™ developed in conjunction with Biological Carbon.

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You can read about the new high performance bioretention soil mix here.