NDLI: Monitoring of (bio)available labile metal fraction in a drinking water treatment plant by diffusive gradients in thin films

Content Provider	Springer Nature Link
Author	Díaz, Alfredo Arnedo, Rebeca Céspedes Sánchez, Raquel Devesa, Ricard Martin Alonso, Jordi
Copyright Year	2011
Abstract	A performance study of diffusive gradients in thin films (DGT) and inductively coupled plasma optical emission spectrometry (ICP-OES) was applied for the monitoring of the labile fraction of metals Al, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, in Sant Joan Despí Drinking Water Treatment Plant located in the South of Barcelona’s Metropolitan Area (Spain). The DWTP monitoring protocol was optimized by working for 1 day of deployment (24 h) with the DGT device in contact with both treated and river water matrixes. Additionally, it was demonstrated that an increase in the deployment time of 1 week did not decrease the evaluated concentrations of the studied metals. The quality parameters of the DGT device and ICP-OES determination, such as limit of quantification, accuracy expressed as relative error (%) and reproducibility expressed as relative standard deviation, were evaluated. Good results were obtained for all the metals in ultrapure water; limits of quantification ranged from 1.5 μg L − 1 for cadmium to 28 μg L − 1 for zinc when deployment time of 24 h was used and from 0.2 μg L − 1 for cadmium to 4 μg L − 1 for zinc when this time was increased by 1 week. Accuracy and precisions lower than or equal to 10% were obtained at a parametric concentration value of the metals regulated in the European Drinking Water Guidelines (98/83/EC). DGT deployment was tested in river and treated water, and good results were obtained for Cd, Ni, Co and Zn, whereas for the other metals, a continuous control of their metallic labile fractions was monitored. Therefore, DGT device allows the continuous monitoring of the labile metal species in a drinking water treatment plant.
Starting Page	539
Ending Page	548
Page Count	10
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	184
Issue Number	1
e-ISSN	15732959
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-03-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Drinking water Diffusive gradients in thin films Labile metal specie Drinking water treatment plant Atmospheric Protection/Air Quality Control/Air Pollution Environmental Management Ecology Environmental Monitoring/Analysis Ecotoxicology
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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