First available results of long-term carcinogenicity bioassay on detergency zeolites (MS 4A and MS 5A).

@article{Maltoni1988FirstAR,
  title={First available results of long-term carcinogenicity bioassay on detergency zeolites (MS 4A and MS 5A).},
  author={Cesare Maltoni and Franco Minardi},
  journal={Annals of the New York Academy of Sciences},
  year={1988},
  volume={534},
  pages={978-85}
}
Long-term experimental carcinogenicity bioassay was carried out on MS 4A and MS 5A zeolites. The materials were tested on Sprague-Dawley rats by intraperitoneal, intrapleural, and subcutaneous injection of 25 mg in 1 ml of H2O. The results of this bioassay (the onset of one peritoneal mesothelioma in a male rat treated by intraperitoneal injection of zeolite MS 4A) calls for further and more sophisticated tests on zeolites used as detergents.