translate English to French: Two structural forms (isomers), alpha-HCH and beta-HCH, are compared with respect to their transport to and distribution within arctic waters.
On compare les propriÃ©tÃ©s de transport et de distribution de deux composÃ©s apparentÃ©s (isomÃ¨res), l'alpha-HCH et le bÃªta-HCH, dans les eaux de l'Arctique.