notice on prohibiting the establishment of disinfection channels in residential areas

1. it is forbidden to set up disinfection channels in residential areas.

2. The leading groups of all districts and counties immediately investigate the situation in their respective jurisdictions, and immediately order the removal of the communities that have set up disinfection channels.

Third, vigorously carry out patriotic health campaigns and implement various measures for environmental improvement.

4. Actively contact the CDC in the jurisdiction to provide disinfection guidance.

Regarding the reasons for the demolition, Jinan Center for Disease Control and Prevention gave four explanations.

1. Chemical disinfectants are harmful to human body, and chemical stimulation can damage respiratory mucosa, making it more susceptible to infection; There are reports that chlorine-containing disinfectants have different degrees of adverse reactions to people in direct contact and indirect contact. The higher the concentration, the stronger the reaction, and improper use of disinfectants can easily cause adverse effects on human body and environment. Farms usually use glutaraldehyde for disinfection. Because of the short life span of farmed animals, the toxicological evaluation method of disinfectants used is different from that used in human living environment. For farms, glutaraldehyde is a low-toxic disinfectant, and its toxicity is relatively large for humans. It is forbidden to use glutaraldehyde for disinfection of external environment and air. Alcohol belongs to dangerous goods, mainly used for hand disinfection and article wiping disinfection, and spraying disinfection is strictly prohibited; At present, there are no chemical disinfectants used for spray disinfection of human body. Skin mucosa disinfectants can be used for wound treatment, injection disinfection, etc. Others are used for disinfection of external environment, inanimate objects and air. During disinfection, people inhale disinfectants or spray disinfectants on people, so the risk cannot be quantitatively evaluated at present.

second, the instructions for the use of disinfectants stipulate that spraying disinfection on the environment and air must be carried out under unmanned conditions.

Third, novel coronavirus's prevention and control measures include good hygiene habits, hand hygiene, regular disinfection of the surfaces and articles that people often contact, wearing masks, opening windows and ventilation, etc. Disinfecting human external surfaces is of little significance for prevention and control.

4. Disinfection effect can only be achieved after the disinfectant reaches a certain concentration and has been disinfected for a specified time. It is difficult to evaluate the disinfection effect when it passes through the atomized disinfectant with extremely low concentration.

to sum up, we don't recommend building disinfection channels. It is suggested that residents should develop good hygiene habits at ordinary times, keep their homes clean, disinfect when necessary, wash their hands frequently and have more ventilation, and try not to go to crowded and unventilated places. If it is inevitable, wear masks.