Monitored Natural Attenuation (MNA)
ALS Environmental provides analytical testing for monitoring intrinsic remediation/natural attenuation (MNA) at sites contaminated with petroleum hydrocarbons and other chemicals.
Dissolved gases (including fixed O2, N2, CO, CO2, and CH4), light hydrocarbons, and hydrogen provide information on the progress of remediation.
Anion and cation changes also reflect the rate of metabolic activity.
The measurement of volatile fatty acids (lactic, the usual treatment stimulant, and its four fermentation products: pyruvic, butyric, propionic and acetic) is another activity monitoring suite.
Total inorganic carbon (TIC) and a measure of the resulting inorganic carbon form CO2, soluble organic carbon, and volatile organic compounds may also be performed to assess the reduction in hydrocarbon contamination.
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