Hygienic aspects of wash water reclamation systems Pak, Z P; Sitnikova, N N; Berlin, A A ...
Kosmicheskaia biologiia i aviakosmicheskaia meditsina,
1989 Jan-Feb, Letnik:
23, Številka:
1
Journal Article
The quality of reclaimed wash water and the composition of used wash water can be best determined by pH, oxygen chemical index, electric conductivity and chlorides that show individual variations but ...are sex-independent. Wash water contained mostly staphylococci and small amounts of sarcines, diplococci and micrococci. The use of washing and disinfecting agents may significantly modify the microbial characteristics of wash water, reducing noticeably its microbial content and increasing the content of organic substances and chlorides due to chemicals they include and due to more effective removal of sebaceous secretion. It is indicated that chemical components of washing and disinfecting agents that produce organic contaminants should be given special attention when developing a wash water reclamation system.
The Coxsackie virus B1 has been studied for its effect on the chromosome apparatus in cells of mouse feti and newborn mice in case of intraperitoneal infection of females on the 3d week of pregnancy. ...It is stated that the virus readily moves across the placental barrier and induces chromosome aberrations in the cells of feti, their number being 2.5 times higher than the control level. The maximal number of structural chromosome aberrations was registered during the first three days from the moment of infecting. Then a gradual decrease in the number of aberrant metaphases in the cells of newborn mice was observed. It had reached the value of the control level by the 17th day of observation.
