List of hazardous substances

 

Bamako Convention bans hazardous waste import to Africa, protecting health and environment. It doesn't list specific substances, instead relying on evolving international law and agreements to define them. This ensures coverage of newly identified hazards.


 

Identification and categorization

 

The Bamako Convention, recognizing the detrimental impacts of hazardous substances on both human health and the environment, established a list of hazardous substances to regulate and manage within the African continent. The specific hazardous substances covered by the convention can vary over time as new substances are identified and classified as hazardous. Therefore, the Convention does not provide a fixed list of hazardous substances. Instead, it relies on the principles of international law, other international agreements, and the decisions of the Conference of the Parties to the Bamako Convention to determine which substances are considered hazardous under the convention's framework.


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Substances covered by the convention

 

The Convention does not provide a specific list of hazardous substances, but it classifies hazardous waste into two categories: Annex I and Annex II wastes. Annex I includes hazardous waste generated in Africa, while Annex II contains hazardous waste generated outside Africa that may not be imported into African countries without the consent of the importing country.  

The primary aim of the Bamako Convention is to prohibit the import into Africa and control the transboundary movement and management of hazardous wastes within Africa. Integral to achieving this aim is the identification and categorization of substances considered hazardous.

Based on the Basel Convention The Bamako Convention takes its cues from the Basel Convention, another major international treaty on hazardous waste. However, the Bamako Convention broadens the definition to ensure more comprehensive protection against potential threats.



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Categorization

 

The hazardous substances under the Bamako Convention are broadly categorized based on their origin, composition, and characteristics. This includes but is not limited to:

  • Clinical wastes from medical care;
  • Wastes from pharmaceutical or biotechnological products,
  • Waste mineral oils;
  • Waste chemicals, like pesticides and herbicides that are expired or no longer in use;
  • Slags, dross, and other metalliferous residues,
  • Certain radioactive wastes.
     

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Characteristics

 

The Convention also outlines specific characteristics that qualify a substance as hazardous. These characteristics are vital in identifying newer substances that might not be explicitly listed but still pose a threat. Characteristics include:

  • Explosiveness; 
  • Flammability; 
  • Toxicity; 
  • Corrosiveness; 
  • Eco-toxicity or ability being harmful to the environment; 
  • Infectious properties.
     


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Updates and Revisions

 

It’s important to note that the list of hazardous substances under the Bamako Convention can be updated and revised. As science and technology evolve, newer substances might be identified as hazardous, or older categorizations might be changed.

Having a well-defined list of hazardous substances is integral to the effective implementation of the Bamako Convention. It ensures that member states have clear guidelines on what substances to monitor, regulate, and manage. It also prevents ambiguities that could be exploited for the illicit transfer of hazardous wastes.

In summary, the Bamako Convention’s list of hazardous substances serves as a crucial tool for African nations in their united stand against the harmful effects of hazardous waste. By clearly defining what constitutes hazardous waste, the Convention empowers member states to protect their environments and populations more effectively.


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Annexes

 

YO
All wastes containing or contaminated by radionuclides the concentration or properties of which result from human activity
Y1
Clinical wastes from medical care in hospitals, medical centers and clinics
Y2
Wastes from the production and preparation of pharmaceutical products
Y3
waste pharmaceuticals, drugs and medicines
Y4
Wastes from the production, formulation and use of biocide and phytopharmaceuticals
Y5
Wastes from the manufacture, formulation and use of wood preserving chemicals
Y6
Wastes from the production, formulation and use of organic solvents
Y7
Wastes from heat treatment and tempering operation containing cyanides
Y8
waste mineral oils unfit for their originally intended use
Y9
Waste oils/water, hydrocarbons/water mixtures, emulsions
Y10
Waste substances and articles containing or contaminated with polychlorinated biphenyls (PCBS) and/or polychlorinate terphenyls (PCTS) and/or polybrominated biphenyls (PBBs)
Y11
Waste tarry residues arising from refining, distillation and any pyrolytic treatment
Y12
Wastes from production, formulation and use of inks, dyes pigments, paints, lacquers, varnish
Y13
Wastes from production, formulation and use of resins latex, plasticizers, glues/adhesives
Y14
Waste chemical substances arising from research and development or teaching activities which are not identified and/or are new and whose effects on man and/or the environment are not known
Y15
Wastes of an explosive nature not subject to other legislation
Y16
Wastes from production, formulation and use of photographic chemicals and processing materials
Y17
Wastes resulting from surface treatment of metals and plastics
Y18
residues arising from industrial waste disposal operations
Y19
Metal carbonyls
Y20
Beryllium; beryllium compounds
Y21
Hexavalent chromium compounds
Y22
Copper compounds
Y23
Zinc compounds
Y24
Arsenic; arsenic compounds
Y25
Selenium; selenium compounds
Y26
Cadmium; cadmium compounds
Y27
Antimony; antimony compounds
Y28
Tellurium; tellurium compounds
Y29
Mercury; mercury compounds
Y30
Thallium; thallium compounds
Y31
Lead; lead compounds
Y32
Inorganic fluorine compounds excluding calcium fluoride
Y33
Inorganic cyanides
Y34
Acidic solutions or acids in solid form
Y35
Basic solutions or bases in solid form
Y36
Asbestos (dust and fibres)
Y37
Organic phosphorous compounds
Y38
Organic cyanides
Y39
Phenols; phenolcompounds including chlorophenols
Y40
Ethers
Y41
Halogenated organic solvents
Y42
Organic solvents excluding halogenated solvents
Y43
Any congener of polychlorinated dibenzo-furan
Y44
Any congener of polychlorinated dibenzo-p-dioxin
Y45
Organohalogen compounds other than substances referred to in this Annex (e.g., Y39, Y41, Y42, Y43, Y44).
Y46
Wastes collected from households, including sewage and sewage sludges
Y47
Residues arising from the incineration of household wastes

LIST OF HAZARDOUS CHARACTERISTICS
* Corresponds to the hazardous classification system included in the United Nations Recommendations on the transport of Dangerous Goods (ST/SG/AC.10/l/Rev.5, United Nations, New York, 1988).

 

1 Hl Explosive

An explosive substance or waste is a solid or liquid substance or waste (or mixture of substances or wastes) which is in itself capable by chemical reaction or producing gas at such a temperature and pressure and at such a speed as to cause damage to the surroundings.

3 H3 Flammable liquids

The word "flammable" has the same meaning as "inflammable". Flammable liquids are liquids, or mixtures of liquids, or liquids containing solids in solution or suspension (for example paints, varnishes, lacquers, etc., but not including substances or wastes otherwise classified on account of their dangerous characteristics) which give off a flammable vapour at temperatures of not more than 60.5 degrees C, closed-cup test, or not more than 65.6 degrees C, open-cup test. (Since the results of open-cup tests and of closed-cup tests are not strictly comparable and even individual results by the same test are often variable, regulations varying from the above figures to make allowance for such difference would be within the spirit of this definition).

4.1 H4.1 Flammable solids

Solids, or waste solids, other than those classed as explosives, which under conditions encountered in transport are readily combustible, or may cause or contribute to fire through friction.

4.2 H4.2 Substances or wastes liable to spontaneous combustion

Substances or wastes which are liable to spontaneous heating under normal conditions encountered in transport, or to heating up on contact with air, and being then liable to catch fire.

4.3 H4.3 Substances or wastes which, in contact with water emit flammable gases

Substances or wastes which, by interaction with water, are liable to become spontaneously flammable or to give off flammable gases in dangerous quantities

5.1 H5.1 Oxidizing

Substances or wastes which, while in themselves not necessarily combustible, may, generally by yielding oxygen, cause or contribute to the combustion of other materials.

5.2 H5.2 Organic peroxides

Organic substances or wastes which contain the bivalent-0-0-structure are thermally unstable substances which may undergo exothermic self accelerating decomposition.

6.1 H6.1 Poisonous (Acute)

Substances or wastes liable either to cause death or serious injury or to harm human health if swallowed or inhaled or by skin contact.

6.2 H6.2 Infectious substances

Substances or wastes containing viable micro organisms or their toxins which are known or suspected to cause disease in animals or humans.

8 H8 Corrosives

Substances or wastes which, by chemical action, will cause severe damage when in contact with living tissue, or in the case of leakage, will materially damage, or even destroy, other goods or the means of transport; they may also cause other hazards.

9 H10 Liberation of toxic gases in contact with air or water

Substances or wastes which, by interaction with air or water, are liable to give off toxic gases in dangerous quantities.

9 Hll Toxic (Delayed or chronic)

Substances or wastes which, if they are inhaled or ingested or if they penetrate the skin, may involve delayed or chronic effects, including carcinogenicity.

9 H12 Ecotoxic

Substances or wastes which if released present or may present immediate or delayed adverse impacts to the environment by means of bioaccumulation and/or toxic effects upon biotic systems.

9 H13

Capable, by any means, after disposal, of yielding another material, e.g., leachate, which possesses any of the characteristics listed above.

 

Dl
Deposit into or onto land, (e.g., landfill, etc.)
D2
Land treatment, (e.g., biodegradation of liquid or sludgy discards in soils, etc.)
D3
Deep injection, (e.g., injection of pumpable discards into wells, salt domes or naturally occurring repositories, etc.)
D4
Surface impoundments, (e.g., placement of liquid or sludge discards into pits, ponds, or lagoons, etc.)
D5
Specially engineered landfill, (e.g., placement into lined discrete cells which are capped and isolated from one another and the environment, etc.)
D6
Release into a water body except seas/oceans
D7
Release into seas/oceans including sea-bed insertion
D8
Biological treatment not specified elsewhere in this Annex which results in final compounds or mixtures which are discarded by means of any of the operations in Annex III
D9
Physico-chemical treatment not specified elsewhere in this Annex which results in