translate English to French: 4.1.4 HCB HCB absorption data are only reported for Lake Superior, Michigan and Erie due to breakthrough during air sampling at the Canadian sites. At all sites HCB is tending towards equilibrium with absorption and volatilization having similar magnitudes.
Analyses chimiques Les protocoles d’analyse en laboratoire requièrent généralement l’extraction par solva nt des médias d’échantillonnage organiques avec l’addition de standards de recouvrement de substituts.