# Aquatic ecosystem monitoring and pollution control > Live situation record from CLSTR: https://clstr.news/situations/aquatic-ecosystem-monitoring-and-pollution-control > Updated: 2026-09-20T05:15:00.000Z. Sources: 7. Developments: 2. Environmental authorities in Mexico and Spain are implementing monitoring and pollution control measures in aquatic ecosystems. In Villahermosa, Mexico, the Laguna de las Ilusiones is suffering from contamination caused by over 10 major wastewater discharge points from residential areas and hospitals, resulting in wildlife mortality. To address this, the Government of Tabasco, Semarnat, and Conagua have formed a technical table to execute a rescue project involving dredging, oxygenation via the Carrizal River, and water redirection to a treatment plant. In Vinuesa, Spain, an automatic solar-powered monitoring station has been deployed in the Laguna Negra. The buoy tracks temperature, dissolved oxygen, nutrients, and organic matter at depths of approximately 8 meters to monitor the glacial lake’s ecological state following previous eutrophication alerts. ## Timeline ### 2026-09-20: Environmental monitoring and pollution control efforts in Mexico and Spain Environmental efforts are underway to combat pollution in Mexico's Laguna de las Ilusiones and monitor ecological health in Spain's Laguna Negra through advanced automated technology. 2 sources. https://clstr.news/cluster/environmental-monitoring-and-pollution-control-efforts-in-mexico-and-spain ### 2026-09-16: Environmental restoration in Mexico and agricultural challenges in Spain Authorities in Mexico are working to restore the Río Valles Corredor Bicentenario, while chestnut growers in Spain's Bierzo region seek institutional aid to combat pests and ensure industry survival. 5 sources. https://clstr.news/cluster/environmental-restoration-in-mexico-and-agricultural-challenges-in-spain --- Cite as: Aquatic ecosystem monitoring and pollution control. CLSTR, https://clstr.news/situations/aquatic-ecosystem-monitoring-and-pollution-control