The Macedonian Institute for Health Protection reported in 2003, when the factory still operated, that Veles was absorbing 62,000 tonnes of zinc, 47,300 tonnes of lead and 120,000 tonnes of sulphur dioxide annually.
Instituti maqedonas për Shëndetin Publik raportoi në 2003, kur fabrika punonte ende, se Velezhi absorbonte 62,000 ton zink, 47,300 ton plumb dhe 12,000 ton dioksid squfuri çdo vit.