Document ID: chunk:federal_register_of_legislation:F2024C00957:reg:17
Version: federal_register_of_legislation:F2024C00957
Segment Type: reg
Provision Reference: reg 17
Character Range: 121992–123096

17        gaseous emission (excluding the effect of water vapour in the emission)                                                                   any undertaking                                                                                                                                      opacity greater than 20%                                                                    Australian Standard AS 4323.1‑1995

Note: This Schedule does not set out accepted limits for air pollutants emitted from a source other than a stationary source.

Part 2—Ambient air quality objectives

2.01  Ambient objectives
  The ambient objective for a substance mentioned in column 2 of table 2 is that concentrations of the substance in air at an airport, measured over the period of time mentioned in column 3, do not exceed the averaged concentration mentioned in column 4.

Table 2

Column 1  Column 2                      Column 3          Column 4

Item no.  Substance                     Averaging period  Ambient objective (maximum averaged concentration)
Part 1    µg/m3                         (ppm)