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What is Electronic Waste (E-Waste)? 

"E-waste" is a term applied to consumer electronic equipment that is no longer wanted. This E-waste includes computers, printers, televisions, old VCRs, cell phones, fax machines, stereos, and electronic games. Electronics may contain lead and other heavy metals or potentially toxic substances and needs to be treaded careful and not be disposed of in a land fill for example.

It is important to the environment to reduce e-waste by the reuse of electronic items that still work, and to recycle electronics at the end of their useful life. 

Forms of Electronic Waste

There are various forms of electric waste but they generally form the electronic equipment waste that have ceased to be of value to their users. Electronic waste (e-waste) products have exhausted their working life and need replacement, or have suffered breakage and this includes both “white goods” such as refrigerators, washing machines, and microwaves and “brown goods” such as televisions, radios, computers, and cell phones.

Given that the information and technology revolution has exponentially increased in recent years, it has also produced growing volumes of obsolete products; e-waste is one of the fastest-growing waste streams that countries are struggling to cope with. Although e-waste contains complex combinations of highly toxic substances that pose a danger to health and the environment, many of the products also contain recoverable and sometimes precious materials, making it a different kind of waste compared with traditional sewerage or green waste.

Globally, e-waste constitutes more than 5 percent of all municipal solid waste.  It is increasing with the rise of sales of electronic products in all developing countries. The majority of the world’s e-waste is recycled in developing countries, where informal and hazardous setups for the extraction and sale of metals are common.

Recycling companies in developed countries face strict environmental regulatory regimes and an increasing cost of waste disposal and have found the exporting of e-waste to developing countries more profitable than recycling in their own countries. Unfortunately, e-waste profiteers can harvest substantial profits owing to lax environmental laws, corrupt officials, and poorly paid workers in those countries. 

Impacts on human health

The complex composition and improper handling of e-waste adversely can seriously affect human health. A growing body of epidemiological and clinical evidence has led to increased concern about the potential threat of e-waste to human health, especially in developing countries such as India and China. The primitive methods used by unregulated backyard operators (e.g., the informal sector) to reclaim, reprocess, and recycle e-waste materials expose the workers to a number of toxic substances. Processes such as dismantling components, wet chemical processing, and incineration are used and result in direct exposure and inhalation of harmful chemicals. Safety equipment such as gloves, face masks, and ventilation fans are virtually unknown, and workers often have little idea of what they are handling.

Operators in some countries for instance, in terms of health hazards, cause great harm by doing open burning of printed wiring boards increases the concentration of dioxins in the surrounding areas. These toxins cause an increased risk of cancer if inhaled by workers and local residents. Toxic metals and poison can also enter the bloodstream during the manual extraction and collection of tiny quantities of precious metals, and workers are continuously exposed to poisonous chemicals and fumes of highly concentrated acids. Recovering resalable copper by burning insulated wires causes neurological disorders, and acute exposure to cadmium, found in semiconductors and chip resistors, can damage the kidneys and liver and cause bone loss. Long-term exposure to lead on printed circuit boards and computer and television screens can damage the central and peripheral nervous system and kidneys, and children are more susceptible to these harmful effects.

Environmental impacts

Although electronics constitute an indispensable part of everyday life, their hazardous effects on the environment cannot be overlooked or underestimated. The interface between electrical and electronic equipment and the environment takes place during the manufacturing, reprocessing, and disposal of these products. The emission of fumes, gases, and particulate matter into the air, the discharge of liquid waste into water and drainage systems, and the disposal of hazardous wastes contribute to environmental degradation. In addition to tighter regulation of e-waste recycling and disposal, there is a need for policies that extend the responsibility of all stakeholders, particularly the producers, beyond the point of sale and up to the end of product life.

There are a number of specific ways in which e-waste recycling can be damaging to the environment. Burning to recover metal from wires and cables leads to emissions of brominated and chlorinated dioxins, causing air pollution. During the recycling process in the informal sector, toxic chemicals that have no economic value are simply dumped. The toxic industrial effluent is poured into underground aquifers and seriously affects the local groundwater quality, thereby making the water unfit for human consumption or for agricultural purposes. Atmospheric pollution is caused by dismantling activities as dust particles loaded with heavy metals and flame retardants enter the atmosphere. These particles either redeposit (wet or dry deposition) near the emission source or, depending on their size, can be transported over long distances. The dust can also enter the soil or water systems and, with compounds found in wet and dry depositions, can leach into the ground and cause both soil and water pollution. Soils become toxic when substances such as lead, mercury, cadmium, arsenic, and polychlorinated biphenyls (PCBs) are deposited in landfills.


E-waste can be classified on the basis of its composition and components. Ferrous and nonferrous metals, glass, plastics, pollutants, and other are the six categories of materials reported for e-waste composition. Iron and steel constitute the major fraction in waste electrical and electronic equipment (WEEE) materials, with plastics being the second largest. Nonferrous materials, including metals such as copper and aluminum, and precious metals such as silver, gold, and platinum are third in abundance and have significant commercial value. Toxic materials include lead and cadmium in circuit boards, lead oxide and cadmium in cathode ray tubes, mercury in switches and flat-screen monitors, brominated flame retardants on printed circuit boards, and plastic and insulated cables; when these exceed the threshold quantities, they are regarded as pollutants and can damage the environment if disposed of improperly.

One of the most widely accepted classifications is based on European Union directives that divide e-waste into the 10 following categories:

  1. Large household appliances: refrigerators, freezers, washing machines, clothes dryers, dishwashers, electric cooking stoves and hot plates, microwaves, electric fans, and air conditioners.
  2. Small household appliances: vacuum cleaners, toasters, grinders, coffee machines, appliances for haircutting and drying, toothbrushing, and shaving.
  3. Information technology (IT) and telecommunications equipment: mainframes, minicomputers, personal computers, laptops, notebooks, printers, telephones, and cell phones.
  4. Consumer equipment: radios, televisions, video cameras, video recorders, stereo recorders, audio amplifiers, and musical instruments.
  5. Lighting equipment: straight and compact fluorescent lamps and high-intensity discharge lamps.
  6. Electrical and electronic tools: drills, saws, sewing machines, soldering irons, equipment for turning, milling, grinding, drilling, making holes, folding, bending, or similar processing of wood and metal.
  7. Toys, leisure equipment, and sporting goods: electric trains or racing car sets, video games, and sports equipment with electric elements.
  8. Medical devices: radiotherapy equipment, cardiology, dialysis, pulmonary ventilators, nuclear medicines, and analyzers.
  9. Monitoring and control instruments: smoke detectors, heating regulators, and thermostats.
  10. Automatic dispensers: for hot drinks, hot or cold bottles, solid products, money, and all appliances that automatically deliver various products.

 If you have any e-waste removal needs, call Heaps Cheap Rubbish Removal on 0406974223 and we will give you a no obligation free quote for the safe disposal of it.

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