The effect of contaminant concentration on the rate of natural attenuation processes in UK aquifers is presented for 18 specific contaminants.
Ref: ISBN 1857055993, LIT 2160 PDF, 2.01MB, 166 pages
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This document, which forms part of the Environment Agency’s outputs relating to the use of monitored natural attenuation (MNA) as a potential remedial strategy for groundwater, addreses the following specific issues:
- the effects of contaminant concentration on the rate of natural attenuation (NA) processes in UK aquifer systems;
- the viability of extrapolation of degradation rate data from an overseas environment to UK conditions.
The project was based upon a literature review for 18 contaminants (phenol, benzene, toluene, ethylbenzene, xylenes, naphthalene, benzo(a)pyrene, methyl tert-butyl ether (MTBE), ethanol, Mecoprop, parathion, inorganic cyanide (CN-), tetrachloroethene, trichloroethene, dichloroethene, vinyl chloride, 1,1,1-trichloroethane, dichloroethane) and five NA processes that are, in part, concentration dependent (diffusion, volatilisation, sorption, abiotic degradation and biodegradation).