Sources:
UNSD/UNEP 2001, 2004 and 2006 questionnaires on Environment statistics, Waste section.
OECD/Eurostat 2004 questionnaire on Environment statistics, Waste section.
OECD Environmental Data, Compendium 2006/2007, Waste section.
Footnotes:
- Data refer to Antigua only.
- Direct delivery without any pretreatment.
- Includes amounts treated in mechanical-biological facilities.
- Unit: thousand cubic meters.
- Includes residues from incineration.
- Value refers to the main island of Tortola only.
- Household waste generated only.
- Data refer to household waste landfilled or incinerated.
- Composting: from residential and non-residential sources.
- Data only refer to waste collected from households and sea by a licensed company.
- Includes amounts undergoing mechanical sorting before treatment/disposal.
- Data refer to municipal waste incinerated with energy recovery.
- Data refer to total amounts of municipal waste managed.
- Includes composting.
- Excludes residues from other operations (54000 tonnes in 2003).
- Data refer to municipal waste landfilled and recovered (include street cleansing waste).
- Data refer to recycling and composting together.
- Incineration: includes refuse derived fuel.
- Composting: includes mechanical/biological treatment.
- Data refer to waste treated by municipalities and separate collection for recycling by the private sector.
- Direct disposal (excluding residues from other treatments, 6.6 million t.).
- Data refer to amounts directly recycled (incl. private collection) and recovered from intermediate processing.
- Data refer to total amounts of municipal waste managed in the country (exclude exported amounts).
- For the calculations, only the six important locations of "Faritany" (Antanarivo, Antsiranana, Fianarantsoa, Mahajanga, Toamasia, Toliary) and the cities of Toalagnaro and Nosy-be were taken into account.
- Residues of incineration of waste are landfilled in France.
- Data include landfilled household waste and recycled packaging waste.
- Landfill: household waste excluding construction and demolition waste.
- Packaging waste only.
- Excluding residues landfilled.
- Recycling: waste separately collected (excludes food, park and garden waste which is included in composting).
- Data refer to solid waste reaching dumping site which was taken from the Dumping Site Survey implemented in 2001.
- Household and similar waste.
- Recycling: separate collection.
- Excludes batteries (2.4 thousand tonnes) and electric and electronic equipment (82.5 thousand tonnes).
- Data pertains to domestic waste (4,100,000 t/year), municipal rubble and soil (1,000,000 t/year), green waste in coastal towns (40,000 t/year), and building waste (1,900,000 t/year).
- Data pertains to automobile waste.
- Landfill: after recovery and incineration.
- Incineration: after recovery.
Definitions & Technical notes:
Municipal waste
includes household waste and similar waste. The definition also includes bulky waste (e.g. white goods, old furniture, mattresses) and yard waste, leaves, grass clippings, street sweepings, the content of litter containers, and market cleansing waste, if managed as waste. It includes waste originating from: households, commerce and trade, small businesses, office buildings and institutions (schools, hospitals, government buildings). It also includes waste from selected municipal services, e.g. waste from park and garden maintenance, waste from street cleaning services (street sweepings, the content of litter containers, market cleansing waste), if managed as waste. The definition excludes waste from municipal sewage network and treatment, municipal construction and demolition waste.
Municipal waste collected
refers to waste collected by or on behalf of municipalities, as well as municipal waste collected by the private sector. It includes mixed household waste, and fractions collected separately for recovery operations (through door-to-door collection and/or through voluntary deposits). In the absence of data for municipal waste collected, data for municipal waste generated is given, if available.
Landfill is the final placement of waste into or onto the land in a controlled or uncontrolled way.
Municipal waste landfilled
includes all amounts going to landfill, either directly, or after sorting and/or treatment, as well as residues from recovery and disposal operations going to landfill. The definition covers both landfill in internal sites (i.e. where a generator of waste is carrying out its own waste disposal at the place of generation) and in external sites.
Incineration
is the controlled combustion of waste with or without energy recovery.
Recycling is defined as any reintroduction of waste material in a production process that diverts it from the waste stream, except reuse as a fuel. Both reprocessing as the same type of product and for different purposes are included. Recycling within industrial plants i.e. at the place where the waste is generated, is excluded.
Compostingis a biological process that submits biodegradable waste to anaerobic or aerobic decomposition, and that results in a product that is recovered.
The sum of the different types of waste disposal may be greater than the total amount of municipal waste collected, as these facilities may be used for other types of waste, or because of double counting due to the landfilling of the residues of incineration, or to the incineration of residues from composting.
Data Quality:
Data on municipal waste collected are usually gathered
through surveys of municipalities, which are responsible for waste
collection and disposal, or from transport companies that collect
waste and transport it to a disposal site. Such surveys deliver
fairly reliable data. However, it must be remembered that the figures
only cover waste collected by or on behalf of municipalities. Therefore:
- Amounts of waste will vary, depending on how far municipal waste
collection covers small industries and the services sector.
- Waste collected by the
informal sector, waste generated in areas not covered by the municipal
waste collection system or illegally dumped waste are nor included.
Caution is therefore advised when comparing countries.
Policy Relevance:
In many cases, a considerable proportion of municipal
waste, particularly glass, paper and metals can be economically
recycled. Organic matter can be composted, with or without methane
recovery, and used to enrich soil. Another fraction of municipal
waste can be burnt as a fuel to generate heat or electricity, preferably
in special incinerators that reduce emissions of dioxins and other
harmful pollutants.
Depending on the type of waste, how the landfill
site is constructed and the hydrological conditions, landfilling
can lead to environmental problems such as leaching of nutrients,
heavy metals and other toxic compounds, emission of greenhouse gases
(CH4 and CO2) and loss of natural areas. Hence, in the best case,
landfill should only be used when other possible waste treatment
methods have been exhausted.
Some towns and cities rely heavily on the informal
sector (scavangers) to recycle waste, and this may be the sole source
of income for whole families, with women and children also actively
involved. As this is totally unregulated, the workers are often
subject to accidents, to respiratory ilnesses, to skin infections
and other health problems. |