Many old electronic goods gather dust in storage waiting to be reused, recycled or thrown away. The U.S. Environmental Protection Agency (EPA) estimates that as much as three-quarters of the computers sold in the United States are stockpiled in garages and closets. When thrown away, they end up in landfills or incinerators or, more recently, are exported to Asia.
Landfill: According to the EPA, more than 4.6 million tons of e-waste ended up in U.S.
landfills in 2000. Toxic chemicals in electronics products can leach
into the land over time or are released into the atmosphere, impacting
nearby communities and the environment. In many European
countries, regulations have been introduced to prevent electronic waste
being dumped in landfills due to its hazardous content. However, the
practice still continues in many countries. In Hong Kong, for example, it
is estimated that 10-20 percent of discarded computers go to landfill.
Incineration:
This releases heavy metals such as lead, cadmium and mercury into the
air and ashes. Mercury released into the atmosphere can bioaccumulate in
the foodchain, particularly in fish - the major route of exposure for
the general public. If the products contain PVC plastic, highly
toxic dioxins and furans are also released. Brominated flame
retardants generate brominated dioxins and furans when e-waste is burned.
Reuse:
A good way to increase a product's lifespan. Many old products are
exported to developing countries. Although the benefits of reusing
electronics in this way are clear, the practice is causing serious
problems because the old products are dumped after a short period of use
in areas that are unlikely to have hazardous waste facilities.
Recycle:
Although recycling can be a good way to reuse the raw materials in a
product, the hazardous chemicals in e-waste mean that electronics can
harm workers in the recycling yards, as well as their neighbouring
communities and environment.
In developed countries, electronics
recycling takes place in purpose-built recycling plants under controlled
conditions. In many EU states for example, plastics from e-waste are not
recycled to avoid brominated furans and dioxins being released into the
atmosphere. In developing countries however, there are no such controls.
Recycling is done by hand in scrap yards, often by children.
Export:
E-waste is routinely exported by developed countries to developing ones,
often in violation of the international law. Inspections of 18 European
seaports in 2005 found as much as 47 percent of waste destined for
export, including e-waste, was illegal. In
the United States, it is estimated that 50-80 percent of the waste collected for
recycling is being exported in this way. This practice is legal because
the United States has not ratified the Basel Convention.
Mainland
China tried to prevent this trade by banning the import of e-waste in
2000. However, we have discovered that the laws are not working; e-waste
is still arriving in Guiya of Guangdong Province, the main center of
e-waste scrapping in China.
We have also found a growing
e-waste trade problem in India. Twenty-five thousand workers are employed at scrap
yards in Delhi alone, where 10,00 - 20,000 tons of e-waste is handled each
year, 25 percent of this being computers. Other e-waste scrap yards have
been found in Meerut, Ferozabad, Chennai, Bangalore and Mumbai.

© UNEP
How did the trade evolve?In
the 1990s, governments in the EU, Japan and some U.S. states set
up e-waste "recycling" systems. But many countries did not have
the capacity to deal with the sheer quantity of e-waste they generated
or with its hazardous nature.
Therefore,
they began exporting
the problem to developing countries where laws to protect workers and
the environment are inadequate or not enforced. It is also cheaper to
"recycle" waste in developing countries; the cost of glass-to-glass
recycling of computer monitors inthe United States is 10times more than
in China.
Demand
in Asia for electronic waste began to grow when scrap yards found they
could extract valuable substances such as copper, iron, silicon, nickel
and gold, during the recycling process. A mobile phone, for example, is
19 percent copper and eight percent iron.