New South Wales Repealed Regulations

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This legislation has been repealed.

PROTECTION OF THE ENVIRONMENT OPERATIONS (CLEAN AIR) REGULATION 2021 - SCHEDULE 3

SCHEDULE 3 – Standards of concentration for scheduled premises--activities and plant used for specific purposes

clause 39

Agricultural fertiliser or ammonium nitrate production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Sulfur dioxide (SO 2) Acid production Group 1 5,600 mg/m 3
Group 2, 3, 4 or 5 2,800 mg/m 3
Group 6 1,000 mg/m 3
Sulfuric acid mist (H 2 SO 4) or sulfur trioxide (SO 3) or both, as SO 3 equivalent Acid production Group 1 200 mg/m 3
Group 2, 3, 4, 5 or 6 100 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Acid production Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 350 mg/m 3
Smoke Acid production Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Aluminium--primary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any activity or plant, except as listed below Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Pre-baked anode production Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 300 mg/m 3
Fluorine (F 2) and any compound containing fluorine, as total fluoride (HF equivalent) Production of aluminium from alumina Group 1 40 mg/m 3
Group 2 20 mg/m 3
Group 3 or 4 1.0 kg/t Al
Group 5 0.8 kg/t Al
Group 6 0.6 kg/t Al
Dioxins or furans Pre-baked anode production Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Pre-baked anode production Group 1 --
Group 2, 3 or 4 --
Group 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Pre-baked anode production Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Aluminium--secondary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any activity or plant, including any smelting, refining or holding furnace, except as listed below Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any activity or plant, including any smelting, refining or holding furnace Group 1 2,500 mg/m 3
Group 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 300 mg/m 3
Fluorine (F 2) or any compound containing fluorine, as total fluoride (HF equivalent) Any smelting or refining furnace Group 1 100 mg/m 3
Group 2, 3, 4, 5 or 6 50 mg/m 3
Type 1 substances (in aggregate) Any smelting or refining furnace Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any smelting or refining furnace Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any smelting or refining furnace Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any smelting or refining furnace Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any smelting or refining furnace Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any activity or plant Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Cement or lime production or cement or lime handling
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any kiln Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any kiln other than a lime kiln Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 500 mg/m 3
Any lime kiln Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 400 mg/m 3
Fluorine (F 2), or any compound containing fluorine, as total fluoride (HF equivalent) Any kiln fired on a liquid or solid standard fuel or a non-standard fuel Group 1 100 mg/m 3
Group 2, 3, 4, 5 or 6 50 mg/m 3
Type 1 substances (in aggregate) Any kiln fired on a non-standard fuel Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any kiln fired on a non-standard fuel Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any kiln fired on a non-standard fuel Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any kiln fired on a non-standard fuel that contains precursors of dioxin or furan formation Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any kiln fired on a non-standard fuel Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any kiln Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Ceramic works
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any kiln or dryer Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any kiln or dryer Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 500 mg/m 3
Fluorine (F 2), or any compound containing fluorine, as total fluoride (HF equivalent) Any kiln or dryer Group 1 100 mg/m 3
Group 2, 3, 4, 5 or 6 50 mg/m 3
Hydrogen chloride (HCl) Any activity, other than the manufacture of glazed terracotta roofing tiles Group 1, 2, 3 or 4 400 mg/m 3
Group 5 or 6 100 mg/m 3
Manufacture of glazed terracotta roofing tiles Group 1, 2, 3 or 4 --
Group 5 or 6 100 mg/m 3
Type 1 substances (in aggregate) Any kiln or dryer fired on a non-standard fuel Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any kiln or dryer fired on a non-standard fuel Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any kiln or dryer fired on a non-standard fuel Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any kiln or dryer fired on a non-standard fuel that contains precursors of dioxin or furan formation Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any kiln or dryer fired on a non-standard fuel Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any kiln, other than those used for firing dark red or dark brown face bricks formed by dry press brick machines
Any dryer 		Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity
Any kiln used for firing dark red or dark brown face bricks formed by dry press brick machines Group 1 Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Electricity generation
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any activity or plant using a liquid or solid standard fuel or a non-standard fuel Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any boiler operating on a fuel other than gas, including a boiler used in connection with an electricity generator that forms part of an electricity generating system with a capacity of 30 MW or more Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 800 mg/m 3
Group 6 500 mg/m 3
Any turbine operating on gas, being a turbine used in connection with an electricity generating system with a capacity of 30 MW or more Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 or 6 70 mg/m 3
Any turbine operating on a fuel other than gas, being a turbine used in connection with an electricity generating system with a capacity of 30 MW or more Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 150 mg/m 3
Group 6 90 mg/m 3
Fluorine (F 2) and any compound containing fluorine, as total fluoride (HF equivalent) Any activity or plant using a liquid or solid standard fuel or a non-standard fuel Group 1 100 mg/m 3
Group 2, 3, 4, 5 or 6 50 mg/m 3
Type 1 substances (in aggregate) Any activity or plant using a non-standard fuel Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any activity or plant using a non-standard fuel Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any activity or plant using a non-standard fuel Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any activity or plant using a non-standard fuel that contains precursors of dioxin or furan formation Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any activity or plant using a non-standard fuel Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any activity or plant using a liquid or solid standard fuel or a non-standard fuel Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Glass production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any melting furnace Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any melting furnace except manufacture of glass using sodium nitrate (NaNO 3) Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 700 mg/m 3
Any melting furnace for manufacture of glass using sodium nitrate (NaNO 3). Group 1, 2, 3, 4 or 5 4,000 mg/m 3
Group 6 1,500 mg/m 3
Type 1 substances (in aggregate) Any melting furnace Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any melting furnace Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any melting furnace Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Smoke Any melting furnace Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Iron and steel--primary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any fuel burning equipment
Any sinter plant
Any kiln
Any power-generating plant
Any furnace 		Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any fuel burning equipment
Any sinter plant
Any kiln
Any power-generating plant
Any furnace 		Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 500 mg/m 3
Hydrogen sulfide (H 2 S) (see also clause 43) Any fuel burning equipment
Any sinter plant
Any kiln
Any power-generating plant
Any furnace
Any reduction control system not followed by combustion 		Group 1, 2, 3, 4, 5 or 6 5 mg/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any activity or plant using a non-standard fuel Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Type 1 substances (in aggregate) Any activity or plant Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any activity or plant Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any activity or plant Group 1 --
Group 2, 3 or 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any sinter plant Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Smoke Any fuel burning equipment
Any sinter plant
Any kiln
Any power-generating plant
Any furnace 		Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Iron and steel--secondary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any fuel burning equipment Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity
Any electric arc furnace 		Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any activity or plant except any electric arc furnace Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 350 mg/m 3
Type 1 substances (in aggregate) Any steelmaking furnace Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any steelmaking furnace Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any steelmaking furnace Group 1 --
Group 2, 3 or 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any steelmaking furnace Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any steelmaking furnace Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any steelmaking furnace Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Non-ferrous metals (excluding aluminium)--primary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any sinter plant
Any smelting or refining process
Any alloying or casting process
Any fuel burning equipment 		Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any smelting or refining process
Any alloying or casting process
Any sinter plant
Any fuel burning equipment 		Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 350 mg/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any activity or plant using a non-standard fuel Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Type 1 substances (in aggregate) Any smelting or refining process
Any alloying or casting process
Any sinter plant 		Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any smelting or refining process
Any alloying or casting process
Any sinter plant 		Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any smelting or refining process
Any alloying or casting process
Any sinter plant 		Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any sinter plant Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Smoke Any sinter plant
Any smelting or refining process
Any alloying or casting process
Any fuel burning equipment 		Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Non-ferrous metals (excluding aluminium)--secondary production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any activity or plant, except as listed below Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any activity or plant Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 300 mg/m 3
Type 1 substances (in aggregate) Any smelting or refining process Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any smelting or refining process Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any smelting or refining process Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any smelting or refining process Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any smelting or refining process Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Smoke Any activity or plant Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Paper, paper pulp or pulp products industries
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any boiler used in connection with power generation
Any kraft recovery boiler
Any lime kiln 		Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any boiler used in connection with power generation
Any kraft recovery boiler 		Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 300 mg/m 3
Any lime kiln Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 400 mg/m 3
Hydrogen sulfide (H 2 S) (see also clause 43) Any kraft recovery boiler
Any lime kiln
Any digester system, if not followed by combustion
Any brown stock washer system, if not followed by combustion
Any condensate stripper, if not followed by combustion 		Group 1, 2, 3, 4, 5 or 6 5 mg/m 3
Total reduced sulfides (TRS), as H 2 S equivalent Any kraft recovery boiler
Any lime kiln
Any digester system, if not followed by combustion
Any brown stock washer system, if not followed by combustion
Any condensate stripper, if not followed by combustion 		Group 1, 2, 3, 4 or 5 --
Group 6 4 mg/m 3
Type 1 substances (in aggregate) Any boiler used in connection with power generation using a non-standard fuel
Any lime kiln using a non-standard fuel 		Group 1, 2 or 3 20 mg/m 3
Group 4 10 mg/m 3
Group 5 or 6 --
Type 1 substances and Type 2 substances (in aggregate) Any boiler used in connection with power generation using a non-standard fuel
Any lime kiln using a non-standard fuel 		Group 1, 2, 3 or 4 --
Group 5 5 mg/m 3
Group 6 1 mg/m 3
Cadmium (Cd) or mercury (Hg) individually Any boiler used in connection with power generation using a non-standard fuel
Any lime kiln using a non-standard fuel 		Group 1, 2 or 3 --
Group 4 3 mg/m 3
Group 5 1 mg/m 3
Group 6 0.2 mg/m 3
Dioxins or furans Any kraft recovery boiler
Any boiler used in connection with power generation using a non-standard fuel that contains precursors of dioxin or furan formation
Any lime kiln using a non-standard fuel that contains precursors of dioxin or furan formation 		Group 1, 2, 3, 4 or 5 --
Group 6 0.1 ng/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any boiler used in connection with power generation using a non-standard fuel
Any lime kiln using a non-standard fuel 		Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Methanol Any kraft recovery boiler Group 1, 2, 3, 4 or 5 --
Group 6 0.012 kg/t of black liquor solids fired
Smoke Any lime kiln
Any kraft recovery boiler
Any boiler used in connection with power generation 		Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Petrochemical production
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any activity or plant, except as listed below Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Any crushing, grinding, separating or materials handling activity Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 20 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any fuel burning equipment Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 350 mg/m 3
Hydrogen sulfide (H 2 S) (see also clause 43) Any reduction control system not followed by combustion
Any sulfur recovery plant 		Group 1, 2, 3, 4, 5 or 6 5 mg/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any thermal oxidation process
Any catalytic oxidation process
Any vapour incineration 		Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Any vapour recovery unit
Any distillation process 		Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3
Smoke Any activity or plant using a liquid or solid standard fuel or a non-standard fuel Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity

Petroleum refining
Air impurity Activity or plant Standard of concentration
Solid particles (Total) Any fuel burning equipment
Any fluidised bed catalytic cracking unit regenerator 		Group 1 400 mg/m 3
Group 2, 3 or 4 250 mg/m 3
Group 5 100 mg/m 3
Group 6 50 mg/m 3
Nitrogen dioxide (NO 2) or nitric oxide (NO) or both, as NO 2 equivalent Any fuel burning equipment
Any fluidised bed catalytic cracking unit regenerator 		Group 1, 2, 3 or 4 2,500 mg/m 3
Group 5 2,000 mg/m 3
Group 6 350 mg/m 3
Hydrogen sulfide (H 2 S) (see also clause 43) Any reduction control system not followed by combustion
Any sulfur recovery plant 		Group 1, 2, 3, 4, 5 or 6 5 mg/m 3
Volatile organic compounds (VOCs), as n-propane equivalent Any thermal oxidation process
Any catalytic oxidation process
Any vapour incineration 		Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs or 125 mg/m 3 CO
Any vapour recovery unit
Any distillation process 		Group 1, 2, 3, 4 or 5 --
Group 6 40 mg/m 3 VOCs
Smoke Any fuel burning equipment using a liquid or solid standard fuel or a non-standard fuel
Fluidised bed catalytic cracking unit regenerator
Any boiler used in connection with power generation 		Group 1, in approved circumstances Ringelmann 3 or 60% opacity
Group 1, in other circumstances Ringelmann 2 or 40% opacity
Group 2, 3, 4, 5 or 6, in approved circumstances Ringelmann 3 or 60% opacity
Group 2, 3, 4, 5 or 6, in other circumstances Ringelmann 1 or 20% opacity


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