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Arsenic in Flexographic Printing
P2 Tech Members -
Yesterday I visited a medium size flexographic printer that prints and cuts
out cardboard boxes. The press was doing a run of pizza boxes at a rate of
about 10 per second - fascinating to watch.
However, our focus during the visit was press washwater that is collected in
a nearby sump prior to disposal. Samples of this washwater show an arsenic
concentration of 0.3 mg/l.
Has anyone seen similar arsenic levels?
What is the probable source of the arsenic - ink, cardboard, or
Thanks in advance for your help.
3351 Beechwood Drive
Lafayette, CA 94549