United Nations Report on Toxic Electronic Waste

United Nations Report on Toxic Electronic Waste

According to a United Nations report released recently Developing countries face increasing environmental and health hazards from electronic waste unless toxic materials are collected and recycled properly.

The report highlights the problem of recycling and salvaging procedures in poorer countries, often in unsafe conditions by unregulated operators. Sales of electronic devices are set to rise sharply in the next 10 years, particularly in emerging economies such as China and India, the United Nations Environment Program (UNEP) said.

According to report, titled Recycling - from EWaste to Resources, the world produces about 40 million tons of waste from electronic devices, known as e-waste, every year.

Main Feature

Experts said exposure to toxic chemicals from ewaste - including lead, cadmium, mercury, chromium and polybrominated biphenyls - can damage the brain and nervous system, affect the kidneys and liver, and cause birth defects.

The report was launched in Indonesia’s resort island of Bali. It used data from11 developing countries to estimate current and future e-waste generation from discarded computers, printers, mobile phones, pagers, cameras, music players, refrigerators, toys, televisions and other items.

China produces an estimated 2.3million tons of ewaste annually, and though the country has banned e-waste imports, it remains a major dumping ground for waste from developed countries, the report said.

The UN research predicts that in South Africa and China, e-waste from old computers may jump by 200 to 400 per cent from 2007 levels and by 500 per cent in India.

E-waste from mobile phones in the same period is forecast to rise seven times in China, and 18 times in India.

According to the report, over 1 billion mobile phones were sold in 2007 worldwide, up from 896 million in 2006.

The report said most e-waste in China was improperly handled, with much of it incinerated by backyard recyclers to recover valuable metals like gold. Jim Pucket of the Basel Action Network, a nongovernmental organization fighting the international trade in toxic wastes, said massive amounts of discarded devices had been exported to China for years.

But China is not alone in facing the serious e-waste problem. India, Brazil, Mexico and others may also face rising environmental damage and health problems if e-waste recycling is left to the vagaries of the informal sector.

Report urged governments to establish e-waste management centres, building on existing organizations working in the area of recycling and waste management.

What is Electronic Waste

Electronic waste, e-waste, e-scrap, orWaste Electricalc and Electronic Equipment (WEEE) describes loosely discarded, surplus, obsolete, broken, electrical or electronic devices. The processing of electronic waste in developing countries causes serious health and pollution problems because electronic equipment contains some very serious contaminants such as lead, cadmium, beryllium and brominated flame retardants. Even in developed countries recycling and disposal of e-waste involves significant risk to workers and communities and great care must be taken to avoid unsafe exposure in recycling operations and leaching of material such as heavy metals from landfills and incinerator ashes.

Problems

Rapid technology change, low initial cost, and planned obsolescence have resulted in a fast-growing surplus of electronic waste around the globe. Dave Kruch, CEO of Cash For Laptops, regards electronic waste as a "rapidly expanding" issue. Technical solutions are available, but inmost cases a legal framework, a collection system, logistics, and other services need to be implemented before a technical solution can be applied. An estimated 50million tonnes of E-waste is produced each year. The USA discards 30 million computers each year and 100 million phones are disposed of in Europe each year.

In the United States, an estimated 70% of heavy metals in landfills comes from discarded electronics, while electronic waste represents only 2% of America's trash in landfills. The EPA states that unwanted electronics totaled 2million tons in 2005. Discarded electronics represented 5 to 6 times as much weight as recycled electronics. The Consumer Electronics Association says that U.S. households spend an average of $1,400 annually on an average of 24 electronic items, leading to speculations of millions of tons of valuable metals sitting in desk drawers. The U.S. National Safety Council estimates that 75% of all personal computers ever sold are now gathering dust as surplus electronics. While some recycle, 7% of cell phone owners still throw away their old cell phones.

Surplus electronics have extremely high cost differentials. A single repairable laptop can be worth hundreds of dollars, while an imploded cathode ray tube (CRT) is extremely difficult and expensive to recycle. This has created a difficult free market economy. Large quantities of used electronics are typically sold to countries with very high repair capability and high raw material demand, which can result in high accumulations of residue in poor areas without strong environmental laws. Trade in electronic waste is controlled by the Basel Convention. The Basel Convention Parties have considered the question of whether exports of hazardous used electronic equipment for repair or refurbishment are considered as Basel Convention hazardous wastes, subject to import and export controls under that Convention. In the Guidance document produced on that subject, that question was left up to the Parties, however in the working group all of the Parties present believed that when material is untested, or contains hazardous parts that would need to be replaced as part of the repair process, then the Convention did apply.

Like virgin material mining and extraction, recycling of materials from electronic scrap has raised concerns over toxicity and carcinogenicity of some of its substances and processes. Toxic substances in lectronic waste may include lead, mercury, and cadmium. Carcinogenic substances in electronic waste may include polychlorinated biphenyls (PCBs). Capacitors, transformers, and wires insulated with or components coated with polyvinyl chloride (PVC), manufactured before 1977, often contain dangerous amounts of PCBs.

Up to 38 separate chemical elements are incorporated into electronic waste items. Many of the plastics used in electronic equipment contain flame retardants. These are generally halogens added to the plastic resin, making the plastics difficult to recycle. Due to the flame retardants being additives, they easily leach off the material in hot weather, which is a problem because when disposed of, electronic waste is generally left outside. The flame retardants leach into the soil and recorded levels were 93 times higher than soil with no contact with electronic waste.[12] The unsustainability of discarding electronics and computer technology is another reason commending the need to recycle or to reuse electronic waste.

When materials cannot or will not be reused, conventional recycling or disposal via landfill often follow. Standards for both approaches vary widely by jurisdiction, whether in developed or developing countries. The complexity of the various items to be disposed of, the cost of environmentally approved recycling systems, and the need for concerned and concerted action to collect and systematically process equipment are challenges. One study indicates that two thirds of executives are unaware of fines related to environmental regulations.

Hotspots

Increased regulation of electronic waste and concern over the environmental harm, which can result from toxic electronic waste, has raised disposal costs. The regulation creates an economic disincentive to remove residues prior to export. In extreme cases, brokers and others calling themselves recyclers export unscreened electronic waste to developing countries, avoiding the expense of removing items like bad cathode ray tubes, the processing of which is expensive and difficult.

Defenders of the trade in used electronics say that extraction of metals from virgin mining has also been shifted to developing countries. Hard-rock mining of copper, silver, gold and other materials extracted from electronics is considered far more environmentally damaging than the recycling of those materials. They also state that repair and reuse of computers and televisions has become a "lost art" inwealthier nations, and that refurbishing has traditionally been a path to development. South Korea, Taiwan, and southern China all excelled in finding "retained value" in used goods, and in some cases have set up billion-dollar industries in refurbishing used ink cartridges, single-use cameras, and working CRTs. Refurbishing has traditionally been a threat to established manufacturing, and simple protectionism explains some criticism of the trade. Works like "The Waste Makers" by Vance Packard explain some of the criticism of exports of working product, for example the ban on import of tested working Pentium 4 laptops to China, or the bans on export of used surplus working electronics by Japan.

Opponents of surplus electronics exports argue that lower environmental and labor standards, cheap labor, and the relatively high value of recovered raw materials leads to a transfer of pollution-generating activities, such as burning of copper wire. In China, Malaysia, India, Kenya, and various African countries, electronic waste is being sent to these countries for processing, sometimes illegally. Many surplus laptops are routed to developing nations as dumping grounds for e-waste.

Because the United States has not ratified the Basel Convention or its Ban Amendment, and has no domestic laws forbidding the export of toxic waste, the Basel Action Network estimates that about 80% of the electronic waste directed to recycling in the U.S. does not get recycled there at all, but is put on container ships and sent to countries such as China. This figure is disputed as an exaggeration by the EPA, the Institute for Scrap Recycling Industries, and the World Reuse, Repair and Recycling Association.

Guiyu in the Shantou region of China, Delhi and Bangalore in India as well as the Agbogbloshie site near Accra, Ghana have electronic waste processing areas. Uncontrolled burning, disassembly, and disposal can cause a variety of environmental problems such as groundwater contamination, atmospheric pollution, or even water pollution either by immediate discharge or due to surface runoff (especially near coastal areas), as well as health problems including occupational safety and health effects among those directly involved, due to the methods of processing the waste. Thousands of men, women, and children are employed in highly polluting, primitive recycling technologies, extracting the metals, toners, and plastics from computers and other electronic waste.

Proponents of the trade say growth of internet access is a stronger correlation to trade than poverty. Haiti is poor and closer to the port of New York than southeast Asia, but far more electronic waste is exported from New York to Asia than to Haiti. Thousands of men, women, and children are employed in reuse, refurbishing, repair, and remanufacturing, sustainable industries in decline in developed countries. It is held that denying developing nations access to used electronics denies them affordable products and internet access.

Opponents of the trade argue that developing countries utilize methods that are more harmful and more wasteful. An expedient and prevalent method is simply to toss equipment onto an open fire, in order tomelt plastics and to burn away unvaluable metals. This releases carcinogens and neurotoxins into the air, contributing to an acrid, lingering smog. These noxious fumes include dioxins and furans. Bonfire refuse can be disposed of quickly into drainage ditches or waterways feeding the ocean or local water supplies.

In June 2008, a container of electronic waste, destined from the Port of Oakland in the U.S. to Sanshui District in mainland China, was intercepted in Hong Kong by Greenpeace. Concern over exports of electronic waste were raised in press reports in India, Ghana, Ivory Coast, and Nigeria.

Recycling

Today the electronic waste recycling business is in all areas of the developed world a large and rapidly consolidating business. Electronic waste processing systems have matured in recent years, following increased regulatory, public, and commercial scrutiny, and a commensurate increase in entrepreneurial interest. Part of this evolution has involved greater diversion of electronic waste from energy-intensive down cycling processes (e.g., conventional recycling), where equipment is reverted to a raw material form.

This diversion is achieved through reuse and refurbishing. The environmental and social benefits of reuse include diminished demand for new products and virgin raw materials (with their own environmental issues); larger quantities of pure water and electricity for associated manufacturing; less packaging per unit; availability of technology to wider swaths of society due to greater affordability of products; and diminished use of landfills.

Audiovisual components, televisions, VCRs, stereo equipment, mobile phones, other handheld devices, and computer components contain valuable elements and substances suitable for reclamation, including lead, copper, and gold.

Electronic Waste Substances

Some computer components can be reused in assembling new computer products, while others are reduced to metals that can be reused in applications as varied as construction, flatware, and jewelry.

Substances found in large quantities include epoxy resins, fiberglass, PCBs, PVC, thermosetting plastics, lead, tin, copper, silicon, beryllium, carbon, iron and aluminium.

Elements found in small amounts include cadmium, mercury, and thallium.

Elements found in trace amounts include americium, antimony, arsenic, barium, bismuth, boron, cobalt, europium, gallium, germanium, gold, indium, lithium, manganese, nickel, niobium, palladium, platinum, rhodium, ruthenium, selenium, silver, tantalum, terbium, thorium, titanium, vanadium, and yttrium.

Almost all electronics contain lead and tin (as solder) and copper (as wire and printed circuit board tracks), though the use of lead-free solder is now spreading rapidly.