6533b872fe1ef96bd12d4416
RESEARCH PRODUCT
Degradation half-life times of PCDDs, PCDFs and PCBs for environmental fate modeling.
Seija SinkkonenJaakko Paasivirtasubject
Environmental EngineeringPolychlorinated DibenzodioxinsPolymersHealth Toxicology and MutagenesisEnvironmental ChemistryWater pollutionChemical decompositionBenzofuransPollutantPersistent organic pollutantPhotolysisChemistryPublic Health Environmental and Occupational HealthSedimentGeneral MedicineGeneral ChemistryBiodegradationPollutionSoil contaminationPolychlorinated BiphenylsKineticsBiodegradation EnvironmentalEnvironmental chemistryDegradation (geology)Environmental PollutantsHalf-Lifedescription
Literature search of the knowledge on the degradation of persistent organic pollutants (POPs) in environmental compartments air, water, soil and sediment was done in purpose to find properties of POPs of interest for modeling. One degradation process, hydrolysis (chemical degradation), was omitted as negligibly slow for POPs studied. The other two, photolysis and biodegradation processes, were considered separately in purpose to develop estimation procedures. The estimates can be given as pseudo first-order rate constants kP for photolysis and kB for biodegradation. For each compartment, an overall degradation rate is k(tot) = kP + kB and lifetime t(1/2) = ln 2/k(tot). The latter values, lifetimes in each compartment, will be used as input parameters to the Baltic Sea model.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-05-01 | Chemosphere |