When is it safe to return home after a wildfire? California becomes first state to pass standards​When is it safe to return home after a wildfire? California becomes first state to pass standards 

 California is poised to become the first U.S. state to set standards for testing and remediation for smoke contamination from wildfires, with a pair of bills passed Monday.  ​​California is poised to become the first U.S. state to set standards for testing and remediation for smoke contamination from wildfires, with a pair of bills passed Monday.