Tribes call for national ban on salmon-killing chemical in car tires

by John Ryan Three Northwest tribes have petitioned the federal government to ban a salmon-killing chemical found in tires and urban streams worldwide. As car and truck tires wear and leave behind skid marks and tire dust, the rubber stabilizer known as 6PPD turns into 6PPD-quinone (also called 6PPD-q), one of the most toxic substances

Airport offers a glimpse at tightening stormwater regulations

Key takeaways Sea-Tac Airport operates under one of the strictest stormwater permits in the state. Every inch of rain that falls at Sea-Tac generates about 6 million gallons of wasterwater, according to the airport. Despite many toxic chemicals used on-site, such as jet fuel and deicer, the airport reports that its most contaminated area is