12. Industrial 1 and 2 Zones Volume Two (d) 6m of the boundary of any property zoned Urban Residential 1, Urban Residential 2 (including Greenfields) or Urban Residential 3. 12.2.4.2. An outdoor storage area must be screened from public view and must be screened from any property zoned Urban Residential 1, Urban Residential 2 (including Greenfields) or Urban Residential 3 by a solid wall or close boarded fence with a minimum height of 2m, except that this standard does not apply to the storage of goods outdoors on Lots 16 to 20 DP 348832 and Lot 2 DP 352510. 12.2.5. Odour. 12.2.5.1. The odour must not be objectionable or offensive, as detected at or beyond the legal boundary of the area of land on which the permitted activity is occurring. 12.2.6. Smoke. 12.2.6.1. The smoke must not be objectionable or offensive, as detected at or beyond the legal boundary of the area of land on which the permitted activity is occurring. 12.2.7. Dust. 12.2.7.1. The best practicable method must be adopted to avoid dust beyond the legal boundary of the area of land on which the activity is occurring. 12.2.8. Dust from any process vent or stack. 12.2.8.1. The dust must not contain hazardous substances. 12.2.8.2. The particulate discharge rate from any air pollution control equipment and dust collection system must not exceed 250mg/m at any time, corrected to 0°C, 1 3 atmosphere pressure, dry gas basis. 12.2.8.3. Dust particles must not exceed 0.05mm size in any direction. 12.3. Standards for specific permitted activities 12.3.1. Temporary building or structure, or unmodified shipping container. 12.3.1.1. For a temporary building or structure, or an unmodified shipping container, ancillary to a building or construction project the building, structure or container must not: (a) exceed 40m in area; 2 (b) remain on the site for longer than the duration of the project or 12 months, whichever is the lesser. 12.3.1.2. A temporary building or structure, or an unmodified shipping container, on site for a purpose other than those specified in Standard 12.3.4.1 (such as the storage of goods or materials) must not remain on site longer than 1 month. 12.3.2. Discharge of contaminants to air from combustion within a stationary internal combustion engine (i.e., internal combustion). 12.3.2.1. The fuel used in the engine must be gas, LPG, petrol, diesel, vegetable oils or alcohol. 12.3.2.2. Fuel containing sulphur at levels greater than 0.05% by weight must not be burned. 12 – 6