Public Safety Pathogens Legionella Bacteria Sewage Contamination Swimming Safety Bacterial Infections Coastal Health Risks Freshwater Risks E. coli Contaminated Water Health Inequality Recreational Water Safety Toxic Exposure Algal Blooms Safety Regulations Cyanobacteria Exposure Faecal Contamination Amoebic Infections Escherichia coli Cooling Towers Legionella in Water Systems Stagnant Water Risks Freshwater Exposure Preventive Measures Coastal Waters Pollution Effects Legionella Bacterial Contamination Precautionary Measures Microorganisms Infections Respiratory Issues Health Hazards Swimming Risks Coastal Water Safety Leptospirosis