• The strandings of green algae were again massive this year in Brittany.

  • To fight against this scourge, the State is preparing a new action plan, the seventh of its kind.

  • To develop it, the regional prefecture invites Bretons and Bretons to give their opinion until December 10.

The scourge has plagued Brittany for several decades. And despite the many plans undertaken over the past twenty years, green algae still continue to invade Breton beaches. The strandings even exploded this year, with a higher proliferation "of 40 to 50%" compared to the multi-year average over the period from April to September, according to figures communicated by the Center for the Study and Valorization of Algae.

Tackled in two reports from the Senate and the Court of Auditors on the effectiveness of the various plans, which did not bring results "up to the stakes", the State is preparing to review its copy.

A new program - the seventh of its kind - of regional nitrate actions (PAR 7), is thus in preparation.

It should be signed next summer and apply over the period 2022-2026, with the objective of "improving water quality" and "reducing diffuse pollution from nitrates".

Citizen consultation open until December 10

To develop it, the regional prefecture relies on the opinions of Bretons and Bretons.

A citizen consultation has just opened on Wednesday, so that the inhabitants can express themselves "on regional measures to fight against water pollution by nitrates of agricultural origin".

Observations and proposals can be submitted until December 10 on a dedicated platform.

A series of webinars will also be offered from November 4 to 18 to educate the general public on the issue of nitrates and the actions already taken to combat green algae.


The employer of a man who died collecting green algae found to be at fault but not inexcusable


Sensors installed to measure air quality in the bay of Saint-Brieuc

  • Consultation

  • Agriculture

  • Algae

  • Green algae

  • Planet

  • Pollution