title: [Contamination of milk and milk products with chlorinated hydrocarbons in the Westphalian area. II. Results and discussion].
abstract: During the time of August 1972 til end of January 1974 samples of butter from 20 dairies from the westfalian area were investigated with regard to their content of chlorinated hydrocarbons. In all samples of milk and butter could be proved: HCB, alpha-, beta-, and gamma-BHC, Heptachlorepoxid (HE), DDT, DDE, DDD, Dieldrin and PCB's, not however, Aldrin, Heptachlor and o,p'-DDT. With HCB, alpha- and gamma-BHC a dependance on the season was observed with maximum values during the winter months. With DDT, DDE and HE the variations were less. With PCB's dependencies on the season or influences of the location were not be recognised. The structure of farming seems to have a significant influence on the contents of HCB. In the course of butter processing the content on chlorinated hydrocarbons related to milk fat is not changed, metabolization does not play a role, either. With the start of lactation the concentration of chlorinated hydrocarbons especially of PCB's are increased as could be shown with single samples.
mesh_terms: D000821:Animal Feed; D002079:Butter / Q000032:analysis*; D003126:Colostrum / Q000032:analysis; D005860:Germany, West; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D012621:Seasons
chemical_list: D006843:Hydrocarbons, Chlorinated; D002079:Butter
vernacular_title: Zur Kontamination von Milch und Milcherzeugnissen mit chlorierten Kohlenwasserstoffen im westfälischen Raum. II. Ergebnisse und Diskussion