Does putting things in the sun kill germs?

Does putting things in the sun kill germs?

A new study found that UV light can help kill bacteria. New research shows that sunlight kills potentially harmful bacteria and improves air quality in indoor environments. In the rooms that were exposed to daylight, 6.8 percent of bacteria were viable — almost half that of the dark rooms.

How long does it take for sunlight to sterilize water?

Just leave a clear glass or plastic bottle out in the sun for six hours. SODIS, or solar water disinfection, is an age-old method touted by the World Health Organization for areas where access to clean water is limited. UV rays in the sunlight tear apart the microbes to make water safe.

Does UV light kill bacteria in water?

UV-A rays from the sun, (Ultraviolet-A, longwave, 315-400 nm), will terminate harmful bacteria, parasites, and viruses in water, given enough sun exposure. A clear plastic bottle filled with water, exposed to the sun for 6 hours will make the water safe to drink (see the caveat list).

Is it safe to drink water from a clear plastic bottle?

A clear plastic bottle filled with water, exposed to the sun for 6 hours will make the water safe to drink (see the caveat list). In fact, the effectiveness of terminating  harmful bacteria is an amazing 5-Nines, that is, 99.999 percent! List of germs that are terminated from UV-A sunlight exposure at 6 hours

How to make water biologically safe to drink?

By placing questionable water in a clear plastic bottle and exposing it to direct sunlight for the proper amount of time, you can render it biologically safe to drink. When harnessed correctly, The UV rays from the sun will target and kill living biological contaminates, such as bacteria, parasites, protozoa, worms, and viruses.

Is sunlight a disinfectant and bactericide?

In reality, it has long been known that sunlight is a powerful disinfectant and bactericide. As early as 1877, researchers discovered that sugar water left in the shade became cloudy, indicative of bacterial growth, but if exposed to sunlight, it remained clear. [3]