An attempt was made to assess methods and solutions traditionally used for evidencing the presence of helminth's eggs in faeces or soil from beach sand samples experimentally infected with eggs of Ascaris lumbricoides, Trichuris trichiura, Toxocara canis and Ancylostomidae. Among classically used solutions. Sodium Dicromate (d= 1.350) was the one with better results (recovery rate =50%) for Ascaris eggs in a 24 hours observation. The two suggested solutions - Sodium Carbonate (d= 1.040) and synthetic anionic detergent - Sodium Sulphonate (d- 1.040) - showed surprising recovery rates, higher than 80% for Ascaris eggs in a 24 hours observation. We concluded that, because of their low cost and great availability, domestic detergents can be used for the routine evaluations of beachs contamination with enteroparasites eggs, which are important indicators of faecal contamination and necessary for an adequate sanitary monitoring of the environment.
