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The following waste materials were out of scope and were excluded from the Physical Supply and Use tables:
Industry classifications used for both the Monetary and Physical Supply and Use tables follow the Australian and New Zealand Standard Industrial Classification (ANZSIC), 2006 (cat. no. 1292.0). Businesses are allocated to a specific industry classification based on their primary business activity. The classifications used in the tables are:
All Other Industries consists of:
The estimates contained in this publication are drawn from a range of data sources, including:
Physical supply (generation) of waste
The NWR presents physical waste data for each waste type at state/territory level, for the waste generation streams: Municipal Solid Waste (MSW), Commercial and Industrial (C&I) and Construction and Demolition (C&D).
Data in the NWR were not complete for each waste type in each waste category. Where the data sources were not available for a given waste fate or state/territory, estimates were derived using the proportions from the available data. The level of imputation varies between product type, depending on available data. All product types sum to respective group totals. State/territory data was then aggregated to national level.
Waste generation by Households
The MSW stream was used to estimate household waste. MSW includes waste collected directly (e.g. kerbside collections of recycling and waste to landfill) and indirectly (e.g. householder drop off at transfer stations, householder self-haul to landfill) from households. It also includes a small portion of C&I waste where local governments provide (directly or indirectly) a collection service that covers businesses and households.
Waste generation by Industry
The Australian National Accounts: Input-Output Tables (Product Details), 2015-16 (cat. no. 5215.0.55.001) were used to allocate waste generated to industries, with the exception of the Construction industry. In these tables, each product balance describes the supply (domestic output and imports) and the use (intermediate consumption and final demand) of the product at a detailed level. The intermediate use of specific products were aggregated to certain waste flow categories for specific industries listed above. This assumes that intermediate use of a product is proportionate to waste generation in the material type of that product. For example, higher intermediate use of clay bricks by an industry results in higher waste generation of bricks by that industry. For the Construction industry C&D data was used directly from the NWR.
Physical waste use (management)
The NWR presents physical waste data for each waste fate (use by the Waste Management Industry): Landfill, Recycling, Energy Recovery, Treatment, Other Disposal. These are presented at state-level for each waste generation stream. These streams and states were aggregated to the national level, to represent total physical volumes of each waste type, sent to each waste fate.
Product supply in the Australian National Accounts: Input-Output Tables, 2016-17 (cat. no. 5209.0.55.001) for supply of the product Input-Output Product Classification (IOPC) 2901 (Waste Collection, Treatable and Disposal Services) was used to calculate the proportion of Waste Services supplied by all industries. The totals in the NWR for each waste fate were allocated across industry according to these proportions.
It is understood that waste management services (such as recycling) occur within industries other than those identified here, however income for these services are not currently identifiable.
Several assumptions were made in this process:
The waste fates are split out under the Waste Collection, Treatment and Disposal Services industry (ANZSIC subdivision 29) in the Physical Use table. For all other industries in this table, all waste fates are combined and represented by a single figure for the physical use of waste.
E-waste physical supply and use
The NWR does not provide detailed data on e-waste. Instead these data were provided by Blue Environment Consulting using models for national e-waste supply and use. This was provided as generation by households and all industry. Industry was disaggregated into each industry group, using intermediate use of electronic products in Australian National Accounts: Input-Output Tables (Product Details), 2015-16 (cat. no. 5215.0.55.001). As with the main Physical Supply and Use tables, it was assumed that high intermediate use of an electronic product by an industry indicated proportionately high generation of e-waste.
E-waste tables only refer to domestic supply and use. Data in these tables are included in the main Physical Supply and Use tables under the respective waste categories and not separately as 'e-waste'.
Waste Import and Exports
Imports and exports of waste products are components of the Physical Supply and Use tables. Imports and exports classified as waste were identified by using Australian Harmonized Export Commodity Classification (AHECC) and Harmonised Tariff Item Statistical Classification (HTISC) and were based on a reference list used by ABS to provide monthly waste export data to DoEE. These reference codes are used to calculate amount of waste (physical and monetary) entering and exiting Australia.
Export data were subtracted from recycling totals for use by the Waste Collection, Treatment and Disposal Services industry. It is understood that some waste exports may occur outside of what is managed by the Waste Collection, Treatment and Disposal Services industry (i.e. prior to collection) and thus would not be fully represented in the NWR. Therefore when exports were greater than recycling totals, it was assumed 100% of the recycling stream for that material is exported and the additional tonnage was added to the Supply table totals.
Import data is additional to what is reported in the NWR. Import codes (HTISC) were concorded with IOPC codes. In the Physical Use table, use of imported non-hazardous waste was allocated to industries using the proportions of intermediate use of the various IOPCs by industry, as presented in the Australian National Accounts: Input-Output tables, 2015-16 (cat. no. 5209.055.001), with the exception of the Waste Collection, Treatment and Disposal Services industry. It was assumed the Waste Collection, Treatment and Disposal Services industry does not import non-hazardous waste products, and that it is the only industry that imports hazardous waste products.
Monetary Supply and Use
The Monetary Supply and Use tables present time-series data from ABS Supply-Use tables for Waste Collection, Treatment and Disposal Services (IOPC 2901) for industry groups in basic and purchasers' prices. Both supply and use of Waste services by industry and household for the period 2007-08 to 2016-17 are published. This IOPC includes the provision of services and income from the sale of recyclate. It is currently not possible to split waste management services from the sale of the recyclate.
Summary and Key Indicators
The Waste Summary, by Industry table, includes expenditure on waste services, waste generation and waste intensity, across key industries. Total waste generation is given in tonnes and Gross Value Added (GVA) in $m for 2016-17. Waste intensity is then calculated for each industry as waste generation divided by GVA (t / $m).
Key statistics for the Waste Collection, Treatment and Disposal Services industry (ANZSIC subdivsion 29), including employment figures, compensation of employees, gross operating surplus and GVA for the 2007-08 to 2016-17 financial year are presented. This data is from Australian Industry, 2017-18 (cat. no. 8155.0) and Australian National Accounts: Supply Use Tables, 2016-17 (cat. no. 5217.0).
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