As we head into the peak of spring allergy season, the Washington State Department of Health is trying something new this year.
The state launched a pollen surveillance system to provide more timely information during allergy season.
The Washington State Department of Health launched a new pollen surveillance effort during peak spring allergy season.
As we head into the peak of spring allergy season, the Washington State Department of Health is trying something new this year.
The state launched a pollen surveillance system to provide more timely information during allergy season.
More from Pollen Sense
We’ve been spending a lot of time reviewing feedback, reading survey responses, and looking closely at how people are using Pollen Wise. One common thread amongst the feedback and survey responses stuck out: people want the app to feel easier to understand at a glance, and more helpful in answering the question, “What should I care about right now?” That thinking shaped this latest update. This is a major refresh to the Pollen Wise home screen, and while we know there is still more to improve, this update is an important step. We’re continuing to build, refine, and learn, and your feedback is a big part of what helps us decide where to go next.
Update: The data cutoff for legacy metrics data was changed from March 11 to March 23, 2026 6PM UTC. Data before that date will continue to be available for the forseeable future, however data after March 23, 2026 6PM UTC will no longer be present either in the legacy portal data viewer or via v1 APIs. Please use the V2 APIs and the Branch/Revision-powered data viewer in the portal for live incoming data
When we say “AI” at Pollen Sense, most people assume we mean LLMs. We don’t. When people hear that Pollen Sense is building AI data infrastructure, the default assumption is usually large language models, chatbots, text generation, or conversational AI. That’s understandable given the moment we’re in. But it’s not what we mean when we say AI. At Pollen Sense, AI data infrastructure means Physical AI, machine learning systems that directly observe the real world, classify physical signals in real time, and convert them into structured, trustworthy data that other systems can reason on.
Take a Deep Breath
Whether you need a sensor network, licensing, or a better allergy experience, the same Pollen Sense infrastructure powers it.