Mystery of September’s strange odor near Portland has been solved — sort ofBy Ryan Haas (OPB)Nov. 20, 2024 10:44 p.m.Washington’s Department of Ecology could not say definitively where the smell came from, but noted a Longview paper mill may have been involved. 📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up