MONITORING OF HEXACHLOROCYCLOHEXANES IN SNOW FROM THE EAST ANTARCTICA

Abstract

Among the four HCHs investigated, a-HCH and g-HCH were detected in all the samples, while a-HCH and g-HCH were below the detection limits in the snow samples. Total concentrations of HCHs in snow samples ranged between 58.7 and 204 pg L-1. a-HCH ranged between 17.5 and 83.2 pg L-1 and g-HCH ranged from 33.3 to 137 pg L-1 and. The mean concentrations of a-HCH and g-HCH were 44.5 and 69.9 pg L-1.-1. a-HCH ranged between 17.5 and 83.2 pg L-1 and g-HCH ranged from 33.3 to 137 pg L-1 and. The mean concentrations of a-HCH and g-HCH were 44.5 and 69.9 pg L-1.