Specialists at the US National Biodefense Analysis and Countermeasures Center (NBACC) conducted a study on the effects of sunlight on COVID-19.
On April 23, Department of Homeland Security Science and Technology Directorate boss Bill Bryan revealed some interim results from a study by the NBACC. According to the study, the presence of direct sunlight with the temperature at 21-24 degrees Celsius and humidity of 80%, the virus’s half-life decreases to two minutes, both in air and on various surfaces. At a similar temperature and humidity, but without the exposure to direct sunlight, the half-life of the virus is 6 hours.
