Author(s)

Y. F. Li, M. T. Scholtz and B. J. van Heyst

Abstract

Technical hexachlorocyclohexane (HCH) is an organochlorine insecticide used throughout the world. Total global technical HCH usage between 1948 to 1997 has been estimated as 10 million tonnes. Annual technical HCH usage data are apportioned to a grid system with l°xl° longitude/latitude resolution by using a global cropland dataset as the surrogate data. Global emissions of a-HCH, the major isomer contained in technical HCH, are also gridded on a l°xl° longitude/latitude grid system for 1980 and 1990 due to 10 consecutive years of application of this insecticide. Total global oc-HCH emissions in 1980 were 217 kt, among which, 95.5% was co

Keywords