| Contamination from pesticides worries hygienists, who fear that content levels will rise in food to the point of causing incidents. The use of pesticides is becoming more generalised, for they have been found in noticeable concentrations in the marine environment, where they have even caused accidental mortalities of animal life, following a treatment against parasites along a riverbank. Thus, shrimp mortalities were observed along the South Carolina coast a few days after a heptachlor treatment (SOUDAN). Many authors, especially BUTLER and DAVIS, agree on recognising that organochlorines are the most toxic pesticides; DDT is one of the most toxic. BUTLER (1966) has shown that oysters are very good detectors of organochlorine pesticides, which they... |
