Prelims- Science & Technology
The Health Ministry has issued a detailed advisory against spraying humans with disinfectants to prevent a rerun once labourers return to industries that qualify for relaxation.
What does the order say?
1. Spraying of individuals or groups is not recommended under any circumstances.
2. Spraying an individual or group with chemical disinfectants is physically and psychologically harmful.
3. Spraying the external part of the body of a person potentially exposed to the COVID-19 virus does not kill the virus that has entered the body.
4. Also spraying disinfectant is not scientifically proven even to effectively disinfect the outer clothing/body.
How is disinfection carried out?
1. Disinfectant refers to substances applied to inanimate objects owing to their strong chemical properties.
2. Disinfection for the SARS-CoV2 virus is usually done using a solution of sodium hypochlorite, commonly known as bleach, a harsh chemical.
3. Chemical disinfectants are recommended for cleaning and disinfection only of frequently touched areas/surfaces by those suspected or confirmed to have COVID-19.
4. As the disinfectant takes specific time to act on an area, the disinfection protocol advises for keeping any place that has been disinfected to be shut.
Why is it a problem?
1. Spraying disinfectant can be harmful.
2. The solution of sodium hypochlorite is unstable and quickly breaks down to release chlorine that can have several harmful effects.
3. Spraying of chlorine on individuals can lead to irritation of eyes and skin and potentially gastrointestinal effects such as nausea and vomiting.
4. Inhalation of sodium hypochlorite can lead to irritation of mucous membranes to the nose, throat, respiratory tract and may also cause bronchospasm.
5. Also, such measures may lead to a false sense of disinfection & safety and hamper public observance to hand washing and social distancing measures.
Source: Indian Express