DEPOSITION OF LINDANE IN DENMARK

The deposition of alpha- and gamma-HCH (Lindane) was measured at four different stations in 1990-1992. gamma-HCH was found in peak concentra tions of 27-122 ng/l in spring and early summer, while the mean concen trations from the rest of the year were about 7 ng/l. The levels of al pha-HCH were about 2 ng/l without any detectable seasonal variation. T he deposited amounts of alpha- and gamma-HCH are probably caused by lo ng-range transport from European countries south and west of Denmark.