Evidence of 1,4-dioxane attenuation at groundwater sites contaminated with chlorinated solvents and 1,4-dioxane.

摘要: There is a critical need to develop appropriate management strategies for 1,4-dioxane (dioxane) due its widespread occurrence and perceived recalcitrance at groundwater sites where chlorinated solvents are present. A comprehensive evaluation of California state (GeoTracker) Air Force monitoring records was used provide significant evidence dioxane attenuation field sites. Temporal changes in the site-wide maximum concentrations were estimate source rates GeoTracker (median length period = 6.8 years). While could not be established all sites, statistically positive confirmed 22 At present, median value (equivalent half-life 31 months; n 34) lower than 1,1,1-trichloroethane (TCA) but similar 1,1-dichloroethene (1,1-DCE) trichloroethene (TCE). Dioxane att...