1.
Journal of Environment and Health
;
(12)2007.
Artículo
en Chino
| WPRIM
| ID: wpr-548075
RESUMEN
0.05).Significant difference existed in the coliform qualification rate in the source water samples taken at various times (P0.05).However,significant difference existed in qualification rate of bacteria,fecal coliform,free chlorine residual (P