POSSIBILITIES OF INTERIOR PYRETHROID DECO NTAMINATION AND PHOTODECOMPOSITION

Pyrethroids are insecticides that are similar to the rethrins, which w ere found in natural pyrethrum. For several years pyrethroids, especia lly Cyfluthrin, Cypermethrin, Deltamethrin and Permethrin, have been u sed in professional and recently in private house interiors as a pest control substance. After an improper use of pyrethroids recently cases of poisoning have been reported. With the aim to reduce pyrethroid-re sidues in buildings the Bremer Umweltinstitut has made a study of vari ous possibilities for decontamination and photodecomposition of these substances. The following report introduces the results of this study.