Israel Sprays Toxic Algae Killer Near Ashkelon Coast

Israel's Water Authority conducted an unusual aerial spraying of toxic pesticides at high concentrations, approximately one kilometer off the coast of Ashkelon, in an effort to eliminate algae blooms that have disrupted desalination facilities. The operation, carried out by a plane from "Chem-Nir" company over a nine-kilometer stretch near the Zikim beach, used a mixture of copper sulfate, aluminum sulfate, and sodium percarbonate. Reports indicate that in some instances, the substances were applied at dosages up to 27 times the permitted standard. The action was reportedly taken without prior notification to the public or relevant professional bodies.

In response to the exposure, the Ministry of Health has recommended an immediate fishing ban in the affected area due to concerns about potential health risks and toxins. Experts warn that some algae species can contain dangerous cyanotoxins harmful to humans, potentially causing liver damage and severe irritation. The ministry emphasized that routine beach water tests are only bacterial and insufficient for assessing chemical contamination.

However, the Water Authority and the Ministry of Energy maintain that the chemicals used are approved and pose no danger to public health or the marine environment. They stated that the substances are also approved for treating drinking water and that the operation was pre-approved by a committee including representatives from the Ministry of Health and Ministry of Agriculture. Both ministries assert that bathing beaches remain completely safe for use.

Satellite imagery shows the algae blooms continue to spread, with projections suggesting they may reach the coast of Haifa within two days, potentially impacting the desalination plant there. Despite these concerns, the Minister of Energy, Eli Cohen, stated after a situation assessment that the water sector is operating normally. The Sorek A desalination plant has resumed operations, and water pumping from boreholes and the Sea of Galilee has been increased to ensure continuous supply.