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Use the map to find current advisories, warnings and watches for fecal bacteria or cyanobacteria during the swim season.
- Harmful Algal Blooms
These blooms are variously referred to as cyanobacteria...
- Harmful Algal Blooms
These blooms are variously referred to as cyanobacteria harmful algal blooms, CyanoHABs or cyanobacteria blooms. The Healthy Swimming Mapper provides warnings and watches for a static point in time (NHDES samples weekly) and blooms are dynamic (they frequently move, grow, shrink and/or dissipate).
The map below indicates Cyanobacteria observations and advisories in Lake Winnipesaukee from the New Hampshire Department of Environmental Services (NHDES). The report card summarizes key information that can have an influence on cyanobacteria.
With the committee’s guidance, this past November, the New Hampshire Department of Environmental Services (NHDES) released the plan to fight cyanobacteria blooms in our beloved lakes and ponds. Toxic cyanobacteria blooms like this risk the health of people, pets, and lakes we love.
Cyanobacteria in New Hampshire’s Inland Surface Waters • From 2004 to 2023, cyanobacteria warnings have been issued for 122 waterbodies and have occurred statewide. • There are currently 94 waterbodies impaired for cyanobacteria in New Hampshire, according to the 2020/2022 integrated report. • Some waterbodies bloom every year, others occur
Exposure can occur through drinking, food, dietary supplements, inhalation, and/ or by dermal contact, and has occurred by haemodialysis (with contaminated water). Dermal-toxins, causing rashes on skin may occur. Synergistic effects of the cyanotoxins may also occur.
21 sie 2024 · TUFTONBORO – There are three new cyanobacteria warnings or watches up for Lake Winnipesaukee this week in Tuftonboro, Alton and Wolfeboro. (still posted 8/23/2024 at 7:30 p.m.) In addition to the Big Lake there are other new locations reported across the state, including Showell Pond in Sandown.
