Final answer:
Ozonation is the wastewater disinfection method that can be dangerous when fumes are inhaled due to its toxic nature and the fact that it is a powerful oxidizing agent.
So the correct answer is C) Ozonation
Step-by-step explanation:
The disinfection method for wastewater that can be dangerous when fumes are inhaled is ozonation. Ozonation is a powerful oxidizing agent and is toxic to most waterborne organisms. As ozone is an unstable molecule, it can release a dangerous gas that is harmful if inhaled. Especially in high concentrations, inhalation of ozone can lead to respiratory issues.
While chlorination also involves the use of chemicals that can be harmful if not properly managed, the specific danger related to inhalation of disinfectant fumes is commonly associated with ozone. Ultraviolet (UV) light disinfection and nutrient removal are not chemical methods and hence do not produce harmful fumes.
the correct answer is C) Ozonation