Effects and uptake of polycyclic aromatic compounds in snails (Helix aspersa).
The International Standardization Organization recently launched a soil toxicity test with snails (Helix aspersa). We assessed the sensitivity of this test for seven polycyclic aromatic compounds. Control animals had 100% survival and low variability for growth measurements. Maximum exposure concentrations of 2800 mg/kg (4000 mg/kg for acridine) had no effect on survival. Similarly, growth (biomass and shell size) was not affected by pyrene, fluoranthene, fluorene, carbazole, phenanthrene, or acridine, whereas dibenzothiophene gave a 10% effect concentration of 1600 mg/kg. Measured internal concentrations of carbazole, dibenzothiophene, and acridine increased with increasing soil concentrations, but biota-soil accumulation factors were low (0.002-0.1). Compared to previously tested organisms, with all being exposed in the same soil type and under similar test conditions, the H. aspersa test was relatively insensitive to all substances.
Sverdrup
Line Emilie
LE
Jordforsk-Norwegian Centre for Soil and Environmental Research, N-1432 As, Norway. line.sverdrup@bio.uio.no
De Vaufleury
Annette
A
Hartnik
Thomas
T
Hagen
Snorre B
SB
Loibner
Andreas Paul
AP
Jensen
John
J
D000818:Animals; D001835:Body Weight / Q000187:drug effects; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism* / Q000494:pharmacology*; D012908:Snails / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism*; D012987:Soil
D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil