Which method is commonly used to disinfect water supplies?

Water disinfection is critical to ensuring a safe drinking supply, and there are several effective methods used to eliminate pathogens and harmful microorganisms from water. Each method listed plays a significant role in public health and safety.

Ultraviolet radiation is a widely accepted disinfection method that works by using specific wavelengths of light to deactivate germs without introducing chemicals into the water.

Chlorine gas is another popular disinfectant that has been used for over a century in water treatment processes. It effectively kills bacteria and viruses and helps to prevent future contamination.

Boiling water is a simple yet effective method that can kill most pathogens. It is often recommended in emergency situations or in areas where chemical treatment is not feasible or practical.

Since all these methods are recognized for their efficacy in disinfecting water supplies, the correct answer accurately reflects the diversity of techniques available for ensuring safe drinking water. This versatility is essential as different situations may call for different methods of disinfection, making the combination of all three a comprehensive approach to water safety.