||Inactivation of Gerbil-Cultured 'Giardia lamblia' Cysts by Free Chlorine.
Rubin, A. J. ;
Evers, D. P. ;
Eyman, C. M. ;
Jarroll., E. L. ;
||Ohio State Univ., Columbus. Water Resources Center. ;Cleveland State Univ., OH. Dept. of Biology.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Animal disease models ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Giardia lamblia cysts were harvested from Mongolian gerbils and exposed to free chlorine in buffered water at pH 5, 7, and 9 at 15 C. The contact times required to obtained a 2-log reduction in cyst survival (i.e., a 99% kill) were interpolated from survival curves generated at fixed concentrations of chlorine in the range of 0.25 to about 16 mg/liter. Concentration-time (C times t') products for 99% inactivation ranged for about 120 to nearly 1,500 mg times min/liter. These values are higher than those reported previously for free chlorine using G. lamblia cysts from infected humans. The cysts isolated from gerbils, as with other Giardia cysts, were unusually sensitive to chlorine in alkaline solutions. (Copyright (c) 1989, American Society for Microbiology.)
||Pub. in Applied and Environmental Microbiology, v55 n10 Oct 89. Prepared in cooperation with Cleveland State Univ., OH. Dept. of Biology. Sponsored by Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
|NTIS Title Notes
||Reprint: Inactivation of Gerbil-Cultured 'Giardia lamblia' Cysts by Free Chlorine.
||PC A01/MF A01