* Relevant only if zinc residues contain lead or cadmium at significant concentrations Arsenic; arsenic compounds Basel permit Waste name: NEPM code: Basel waste code: A1010, category:Y24 Arsenic; arsenic compounds D130 A1030 Low Medium Moderate High Extreme Hazard score (0 6) – 3.9 4.9 – Arsenic and arsenic compounds have been used in Australia in manufacturing and formulating chemicals used in wood preservation and pesticide applications, although arsenic is no longer used in pesticides in Australia. Arsenic may also be used in specific glassmaking applications; such as to produce clear glass, free from Description of the green stain of iron impurity. the waste Arsenic also occurs naturally in mineral form, usually with sulphur and valuable metals such as copper and gold for example – What is it? geologists often look for arsenic in soil as a means of locating an ore body1. Solid arsenic wastes can result from smelting for other metals, where arsenic is present in the ore. Waste form Solid Elemental arsenic is unlikely to occur in pure form in Australia as most of its applications are either in its trivalent (As III, called Physical/ arsenites) or pentavalent (As V, called arsenates) oxidation states, chemical both typically present as solids. The former is its most hazardous description form and the simplest trivalent arsenic compound, arsine gas, is extremely toxic. Substances or wastes which, if they are H11: Toxic (delayed inhaled or ingested or if they penetrate the Primary hazard or chronic) skin, may involve delayed or chronic effects, including carcinogenicity. Substances or wastes which if released Why is it present or may present immediate or Secondary hazardous? H12: Ecotoxic delayed adverse impacts to the environment hazard by means of bioaccumulation and/or toxic effects upon biotic systems. N/A N/A Other hazard(s) Main likely chemical contaminants Other heavy metals could be present. Glass manufacturing, metal smelting, mining, inorganic chemical Where does it Main sources manufacturing and manufacturers/ formulators of copper chrome come from? arsenate (CCA) wood preservative (see Y5). How is it Chemical/ physical treatment to immobilise the hazard, then the Main fates managed? stabilised material is usually disposed of in hazardous waste landfill.
* Relevant only if zinc residues contain lead or cadmium at significant concentrations Arsenic; arsenic compounds Waste name: Arsenic; arsenic compounds Basel waste category:Y24 Basel permit code: A1010, A1030 NEPM code: D130 What is it? Hazard score (0 – 6) Low Medium Moderate High Extreme 3.9 – 4.9 Description of the waste Arsenic and arsenic compounds have been used in Australia in manufacturing and formulating chemicals used in wood preservation and pesticide applications, although arsenic is no longer used in pesticides in Australia. Arsenic may also be used in specific glassmaking applications; such as to produce clear glass, free from the green stain of iron impurity. Arsenic also occurs naturally in mineral form, usually with sulphur and valuable metals such as copper and gold – for example geologists often look for arsenic in soil as a means of locating an ore body1. Solid arsenic wastes can result from smelting for other metals, where arsenic is present in the ore. Waste form Solid Physical/ chemical description Elemental arsenic is unlikely to occur in pure form in Australia as most of its applications are either in its trivalent (As III, called arsenites) or pentavalent (As V, called arsenates) oxidation states, both typically present as solids. The former is its most hazardous form and the simplest trivalent arsenic compound, arsine gas, is extremely toxic. Why is it hazardous? Primary hazard H11: Toxic (delayed or chronic) Substances or wastes which, if they are inhaled or ingested or if they penetrate the skin, may involve delayed or chronic effects, including carcinogenicity. Secondary hazard H12: Ecotoxic Substances or wastes which if released present or may present immediate or delayed adverse impacts to the environment by means of bioaccumulation and/or toxic effects upon biotic systems. Other hazard(s) N/A N/A Main likely chemical contaminants Other heavy metals could be present. Where does it come from? Main sources Glass manufacturing, metal smelting, mining, inorganic chemical manufacturing and manufacturers/ formulators of copper chrome arsenate (CCA) wood preservative (see Y5). How is it managed? Main fates Chemical/ physical treatment to immobilise the hazard, then the stabilised material is usually disposed of in hazardous waste landfill.