1Short titleThis policy may be cited as the Environmental Protection (Air) Policy 2019.2CommencementThis policy commences on 1 September 2019.3DefinitionsThe dictionary in schedule 2 defines particular words used in this policy.4ApplicationThis policy applies to the air environment.5Purpose(1)The purpose of this policy is to achieve the object of the Act in relation to the air environment.Note—See section 3 of the Act.(2)The purpose is achieved by—

(a)identifying environmental values to be enhanced or protected; and

(b)stating indicators and air quality objectives for enhancing or protecting the environmental values; and

(c)providing a framework for making consistent, equitable and informed decisions about the air environment.

6Environmental valuesThe environmental values to be enhanced or protected under this policy are—

(a)the qualities of the air environment that are conducive to protecting the health and biodiversity of ecosystems; and

(b)the qualities of the air environment that are conducive to human health and wellbeing; and

(c)the qualities of the air environment that are conducive to protecting the aesthetics of the environment, including the appearance of buildings, structures and other property; and

(d)the qualities of the air environment that are conducive to protecting agricultural use of the environment.

7Air quality objectives for indicators(1)This section and schedule 1 state the air quality objectives to be achieved and maintained under this policy.(2)An air quality objective stated in schedule 1, column 3 for an indicator stated in column 1 and for a period stated in column 4 is stated for enhancing or protecting the environmental value stated in column 2 of the schedule for the objective.(3)An air quality objective stated in schedule 1, column 3 must be worked out as an average over the period stated in column 4 for the objective.(4)Despite subsection (2), an environmental value may be enhanced or protected in an area or place if the amount of an indicator in the air environment in the area or place is more than the amount of the air quality objective stated in schedule 1, column 3 for the indicator for not more than the number of days stated in column 5 of the schedule for the indicator.(5)It is intended that the air quality objectives be progressively achieved as part of achieving the purpose of this policy over the long term.(6)This section does not apply to an air emission that may be experienced within a residence or workplace if the air emission is released within the residence or workplace.(7)In this section—workplace see the Work Health and Safety Act 2011, section 8. 8Management hierarchy for air emissions(1)This section states the management hierarchy for an activity involving air emissions that affect, or may affect, an environmental value to be enhanced or protected under this policy.Note—See section 35 of the Environmental Protection Regulation 2019.(2)To the extent that it is reasonable to do so, air emissions must be dealt with in the following order of preference—

(a)firstly—avoid air emissions;Example for paragraph (a)—using technology that avoids air emissions

(b)secondly—recycle air emissions;Example for paragraph (b)——re-using air emissions in another industrial process

(c)thirdly—minimise air emissions;Example for paragraph (c)—using technology, materials or industrial processes that minimise air emissions

(d)fourthly—manage air emissions.Examples for paragraph (d)—

•locating a thing that releases air emissions in a suitable area to minimise the impact of the air emissions

•treating air emissions before release

•dispersing air emissions to minimise the impact of the air emissions

9RepealThe Environmental Protection (Air) Policy 2008, SL No. 441 is repealed.Schedule 1Air quality objectivessection 7Column 1Column 2Column 3Column 4Column 5IndicatorEnvironmental valueAir quality objectivesPeriodDaysµg/m³ (except where noted)ppm (volume/volume)1.2-dichloroethanehealth and wellbeing7640.17324 hours1.3-butadienehealth and wellbeing2.40.0011 yeararsenic and compounds (measured as the total metal content in PM₁₀)health and wellbeing6ng/m³1 yearbenzenehealth and wellbeing5.40.0021 yearbenzo(a)pyrene (as a marker for polycyclic aromatic hydrocarbons)health and wellbeing0.3ng/m³1 yearcadmium and compounds (measured as the total metal content in PM₁₀)health and wellbeing5ng/m³1 yearcarbon disulfidehealth and wellbeing1090.03224 hoursprotecting aesthetic environment220.00630 minutescarbon monoxidehealth and wellbeing11mg/m³98 hours1 day each yeardichloromethanehealth and wellbeing3.3mg/m³0.924 hours0.49mg/m³0.131 weekfluoridehealth and biodiversity of ecosystems (other than protected areas)2.924 hours0.8430 days0.590 dayshealth and biodiversity of ecosystems (for protected areas)0.190 daysprotecting agriculture1.524 hours0.430 days0.2590 daysformaldehydehealth and wellbeing540.0424 hoursprotecting aesthetic environment1090.08230 minuteshydrogen sulfidehealth and wellbeing1640.10824 hoursprotecting aesthetic environment7.50.00530 minutesinorganic mercury vapourhealth and wellbeing1.11 yearlead and compounds (measured as the total metal content in total suspended particles)health and wellbeing0.51 yearmanganese and compounds (measured as the total metal content in PM₁₀)health and wellbeing0.161 yearnickel and compounds (measured as the total metal content in PM₁₀)health and wellbeing22ng/m³1 yearnitrogen dioxidehealth and wellbeing2500.121 hr1 day each year620.031 yearhealth and biodiversity of ecosystems330.0161 yearozonehealth and wellbeing2100.101 hr1 day each year1710.084 hours1 day each yearozone (measured as accumulated exposure over a threshold of 40 ppb during daylight hours)protecting agriculture0.2 ppm-hr5 days3 ppm-hr3 monthshealth and biodiversity of ecosystems (for semi-natural vegetation)3 ppm-hr3 monthshealth and biodiversity of ecosystems (for natural or uncultivated areas)10 ppm-hr6 monthsPM_2.5health and wellbeing2524 hours81 yearPM₁₀health and wellbeing5024 hourshealth and wellbeing251 yearstyrenehealth and wellbeing2840.0611 weekprotecting aesthetic environment760.01630 minutessulfatehealth and wellbeing2724 hourssulfur dioxidehealth and wellbeing5700.21 hr1 day each year2290.081 day1 day each year570.021 yearprotecting agriculture310.0111 yearhealth and biodiversity of ecosystems (for forests and natural vegetation)210.00751 yeartetrachloroethylenehealth and wellbeing0.27mg/m³0.0371 yearprotecting aesthetic environment8.7mg/m³1.230 minutestoluenehealth and wellbeing4.1mg/m³124 hours4000.11 yearprotecting aesthetic environment1.1mg/m³0.330 minutestotal suspended particleshealth and wellbeing901 yearvanadium and compounds (measured as the total metal content in PM₁₀)health and wellbeing1.124 hoursvinyl chloride monomerhealth and wellbeing280.01024 hoursvisibility reducing particlesprotecting aesthetic environment20km visibility in the air environment1 hrxylenes (as a total of ortho, meta and para isomers)health and wellbeing1.2mg/m³0.2524 hours9500.21 yearSchedule 2Dictionarysection 3air emission means a substance released into the air.air environment means the part of the environment of an area or place characterised by the air emissions that may be experienced there.air quality objective, for an area or place, means—

(a)for an air quality objective for an indicator that is the amount of the visibility in the air environment—the minimum amount of visibility that should be in the air environment of the area or place despite the presence of the indicator; or

(b)otherwise—the maximum level that an indicator should be in the air environment of the area or place.

equivalent aerodynamic diameter, in relation to a particle (a measured particle), means a length equivalent to the diameter of a spherical particle with a density of 1g/cm³ that has the same settling velocity as the measured particle.health and biodiversity of ecosystems means the environmental value mentioned in section 6(a).health and wellbeing means the environmental value mentioned in section 6(b).indicator means a contaminant that may be present in the air environment.mg/m³ means milligram per cubic metre at 0 degrees Celsius and an atmospheric pressure of 1.ng/m³ means nanogram per cubic metre at 0 degrees Celsius and an atmospheric pressure of 1.PM_2.5 means particles in the air environment with an equivalent aerodynamic diameter of not more than 2.5 microns.PM₁₀ means particles in the air environment with an equivalent aerodynamic diameter of not more than 10 microns.ppb means parts for each billion.ppm means parts for each million.ppm-hr, for an indicator, means the average concentration of the indicator measured in parts for each million, multiplied by the length of time in hours to which the average applies.protected area see the Nature Conservation Act 1992, schedule.protecting aesthetic environment means the environmental value mentioned in section 6(c).protecting agriculture means the environmental value mentioned in section 6(d).residence includes a building, or part of a building, capable of being used as a dwelling.total suspended particles means particles in the air environment with an equivalent aerodynamic diameter of less than 100 microns.µg/m³ means microgram per cubic metre at 0 degrees Celsius and an atmospheric pressure of 1.