Occurrence and fate of corrosion-induced zinc in runoff water from external structures

The Science of the Total Environment
Sofia BertlingDan Berggren Kleja

Abstract

This paper comprises data from an extensive cross-disciplinary research project aiming to elucidate the environmental fate of corrosion-induced zinc release from external structures. It includes an exposure assessment that provide long-term runoff rates, concentrations and chemical speciation of zinc, from 14 zinc-based materials exposed during 5 years in Stockholm, Sweden, and an effect assessment including bioavailability and ecotoxicity measurements, both at the immediate release situation and after soil interaction. Runoff rates of total zinc ranged from 0.07 to 2.5 g Znm-2 yr-1 with zinc primarily released as the free ion for all materials investigated. The average effect concentration, causing a 50% growth reduction after 72 h to the green algae Raphidocelis subcapitata, was at the immediate release situation 69 microg ZnL-1. Upon interaction of runoff water with soil, which simulated 18 to 34 years of exposure, the total zinc concentration was significantly reduced, from milligram per litre to microgram per litre levels. Simultaneously, the most bioavailable fraction of zinc in runoff, the hydrated zinc(II)-ion, decreased from more than 95% to about 30%. The major fraction, 98-99%, of the introduced total zinc concentrat...Continue Reading

References

Jul 26, 2002·Chemosphere·D G HeijerickC Leygraf
Oct 3, 2002·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·D G HeijerickC R Janssen

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Citations

Dec 24, 2013·Environmental Science & Technology·Yolanda S HedbergInger Odnevall Wallinder
Nov 19, 2013·Environmental Science and Pollution Research International·Emna Sellami-KaanicheGhassan Chebbo
Nov 7, 2007·Environmental Monitoring and Assessment·Gunilla HertingChristofer Leygraf
Jul 14, 2010·The Science of the Total Environment·Wataru NaitoYuichi Iwasaki
May 14, 2016·Environmental Science and Pollution Research International·Jérémie SageMarie-Christine Gromaire
Jul 20, 2007·Environmental Monitoring and Assessment·B BaharM Virta
May 14, 2010·Environmental Science & Technology·David LindströmInger Odnevall Wallinder

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