Virginia Issued Advisory for Chesapeake Bay Algae Bloom
Residents and visitors should be aware of potential skin irritation from a bloom affecting the state's coastal waters.
Updated on Sept. 21, 2026 in Asthma
Live Poll
Do you feel comfortable recreating in local waters given recent reports of algae blooms?
The Virginia Department of Health issued a public advisory regarding an algae bloom in the Chesapeake Bay off the Eastern Shore. The bloom, caused by the species Alexandrium monilatum, is currently affecting waters in Northampton and Accomack Counties.
Why it matters
The advisory is intended to protect the public from potential skin irritation caused by exposure to the algae. Additionally, the bloom may impact local aquatic life as it reduces dissolved oxygen levels and releases toxins.
Official monitoring by state authorities identified the bloom of Alexandrium monilatum, which is known to lower dissolved oxygen and produce toxins. The full scope of environmental impact is still being evaluated as the bloom expands.
The players
Virginia Department of Health
The state agency responsible for overseeing public health, including monitoring water safety and issuing health advisories.
The details
The algae Alexandrium monilatum creates physical changes in the water, including bioluminescence at night and noticeable odors. It negatively impacts local fish populations by depleting dissolved oxygen levels and releasing toxins that cause fish kills. While it poses a risk of skin irritation to humans, fish exposed to the algae remain safe to eat when cooked to proper temperatures.
Timeline
September 21, 2026: The Virginia Department of Health issued the public advisory.
Health Landscape
This event highlights the ongoing environmental monitoring conducted by the Chesapeake Bay Program to track water safety and biological trends. Such alerts are part of a established framework to manage human health risks during seasonal shifts in water composition.
If you are in or near the affected coastal areas, avoid direct skin contact with the water to prevent irritation. If you have concerns about water safety or symptoms after exposure, consult with your doctor.
The takeaway
While the algae bloom creates significant risks for local fish and can cause skin irritation in humans, it does not prevent the consumption of fish when prepared at safe temperatures. Monitor local health authority updates for guidance on avoiding contact with affected waters in the coming days.
Further reading
For more information on managing environmental sensitivities, visit the Asthma resource page.
Live Poll
Do you feel comfortable recreating in local waters given recent reports of algae blooms?
