3:28 PM: Big Seattle Fire callout to the 2900 block of SW Florida. 911 log calls it a haz-mat response. More to come.
3:31 PM: Scanner says an unknown substance sprayed on a worker at Terminal 5.
3:48 PM: “Cutting fluid” is what’s suspected to be involved. Via Twitter, SFD says the worker’s “symptoms are minor.”
5:07 PM: No additional official info, but after an hour and a half, the incident is now closed.