— see Christopher Dunagan (Puget Sound Institute), “Scientists identify deadly chemical killing coho salmon,” Kitsap Sun, 6 Dec. 2020, Print, 1A and 8A; 4 Dec. 2020, Web, Scientists identify deadly chemical killing coho salmon (kitsapsun.com)
— see Lynda V. Mapes, “Tire dust killing coho salmon returning to Puget Sound, new research shows,” The Seattle Times, 3 Dec. 2020, Web, https://www.seattletimes.com/seattle-news/environment/tire-dust-is-killing-salmon/
Michael Maddox Conservation 