Healthy Human Population is an indicator of ecosystem health established by the State of Washington's Puget Sound Partnership. It is part of a series of indicators known as "Puget Sound Vital Signs" that include sub-categories such as air quality, drinking water, local foods, onsite sewage systems, outdoor activity and shellfish beds. The goal of the indicator is "a healthy population supported by a healthy Puget Sound that is not threatened by changes in the ecosystem," according to the Partnership's website. Related articles below may include topics pertaining to beneficial—not just adverse—conditions for human health.