title: The accumulation, distribution and viability of human parasitic nematode eggs in the sludge of a primary facultative waste stabilization pond.
abstract: Investigations into the enumeration, distribution and viability of nematode eggs in the sludge from a primary facultative waste stabilization pond showed that pond sludges are not nematologically safe for immediate land application. Up to 12% of Ascaris lumbricoides eggs were viable after the pond had been in operation for 2.5 years. Eggs were recovered from the sludge along the full length of the pond, although there were significant decreases in egg concentration and viability with increasing distance from the inlet.
authors.affiliation: Department of Pure and Applied Biology, University of Leeds, UK.
authors.forename: R M
authors.initials: RM
authors.lastname: Ayres
authors.forename: D L
authors.initials: DL
authors.lastname: Lee
authors.forename: D D
authors.initials: DD
authors.lastname: Mara
authors.forename: S A
authors.initials: SA
authors.lastname: Silva
mesh_terms: D000818:Animals; D017164:Ascaris lumbricoides / Q000502:physiology; D001938:Brazil; D010270:Parasite Egg Count; D012722:Sewage; D014258:Trichuris / Q000502:physiology
chemical_list: D012722:Sewage