The iPhone 6 was just released and people worldwide are
eager to scrap their iPhone 4’s and 5’s to get their hands on Apple’s newest
piece of technology. Have you ever wondered what happens to the older, now
“obsolete” phones people trade in for the newest model? Apple may not be
sending their used products overseas to be processed, yet the majority, about
50 – 80%, of American electronic waste is sent to Africa or Asia to be
recycled. In 1998 the overall e-waste volume from the U.S. was about 5 – 7 million
tons, a figure that is much higher today and, along with the amount of e-waste
from the rest of the world, is rapidly growing.
Guiyu is a
town of 150,000 people comprised of twenty-eight villages in southeastern
China. It is the largest e-waste disposal site in the world. Beginning in the
1990’s, Guiyu accommodates millions of tons of e-waste from overseas and
domestic sources every year. While the U.S. generates an exorbitant amount of
e-waste, most of the e-waste processed in China is generated in China. Most
families in Guiyu run small scale, family-run e-waste recycling operations,
employing approximately 100,000 migrant workers. These workshops utilize very
primitive practices in processing the e-waste. Safe, high-tech recovery methods
in recycling electronic waste are available, yet they are expensive and, thus,
unattainable for these poor workers.
To start,
old electronic equipment is dismantled using various, simple tools. Circuit boards of computers and other large appliances are heated over coal fires to melt solder to release valuable electronic components like microchips. Microchips and computer parts are soaked in acid baths to extract gold and palladium, precious metals. The waste acid is dumped into nearby fields and streams. Wires and cables are stripped and then burnt in open air to recover metals. Remaining plastic parts are also sorted by rigidity, color, and luster, fed into grinders, and then discharged into tiny pieces which are then purchased by companies such as Foxconn, a supplier for Apple products. Transformers, chargers, batteries, and cathode-ray tubes are also separated and hammered open to recycle metals such as copper, steel, silver, and aluminum. In many cases, the only source of ventilation in workshops throughout these processes is a small household fan.
E-waste
material and residues are often dumped in yards, roadsides, open fields,
irrigation canals, riverbanks, and ponds. As a result, high levels of toxic
heavy metals and organic contaminants are in dust, soil, surface and
groundwater in the town. Many Guiyu residents refuse to drink the well water,
tainted with heavy metals like lead, chromium, and tin, and eat the rice they
harvest because of severe soil and water pollution. The rice, however, is still
shipped out to be eaten elsewhere, perhaps fueling the country’s problems with
cadmium-contaminated rice.
Such severe
environmental contamination from e-waste recycling has had many negative health
repercussions. Lead, contained in many electronic components such as cathode
ray tubes in older TVs and computer monitors, is a major contaminant among
Guiyu’s population, particularly young children. A study in Environmental Health Perspectives, an
academic journal published by the National Institute of Environmental Health Sciences,
examined the blood lead levels (BLLs) of children ages six and under in Guiyu.
Blood samples were collected from children at kindergartens from four different
villages in Guiyu, each involved in separate stages of e-waste processing. For
comparison, a control group from neighboring Chendian, a town centered on the
textiles industry not e-waste processing, was also measured. The results showed
that on average, the blood lead levels of children in Guiyu were significantly
higher than those in Chendian. 81.8% of children in Guiyu had BLLs higher than
10 µg/dL,
compared to only 37.7% of children in Chendian (the U.S. Centers for
Disease Control defines elevated BLL as those greater than 10 µg/dL).
The average BLL among children in Guiyu was 16.14 µg/dL, much
higher than China’s 9.29 µg/dL average. The study concluded that elevated BLLs in
Guiyu children were common due to exposure to lead contamination from primitive
e-waste recycling practices.
Another
study conducted by the National Research Center for Environmental
Analysis and Measurement found high levels of dioxins in farmland soils of
Guiyu. Dioxins are persistent organic pollutants that bioaccumulate in fatty
tissue. They are highly toxic and can cause serious health problems, such as
cancer as well as immune and nervous system impairment. Dioxins, along with
other heavy metals and contaminants, such as mercury and cadmium, found in
Guiyu stemming from primitive e-waste recycling, are likely what is causing the
high incidences of skin damage, headaches, vertigo, nausea, chronic gastritis,
and gastric and duodenal ulcers.
It is unjust that electronic waste
from the United States plays a role in the contamination of Guiyu’s environment
and degradation of the citizens’ health while the U.S. remains largely unharmed
by these effects. The poor residents of Guiyu have little choice but to
continue to live and work in such a toxic environment. However, some migrant
workers express that, while the conditions are horrible, working at e-waste
processing workshops in Guiyu allow more freedom than working on factory lines
where hours are strict and young children are barred from the premises.
There is hope for improvement in
Guiyu and other major e-waste dumpsites in the world. The Basel Convention, for
example, is an international treaty in which all ratifying nations agreed to
reduce exports of hazardous waste to a minimum and handle their waste problems
within national borders. Under the Basel Ban Amendment, exporting hazardous
waste (which includes e-waste) is prohibited from developed countries to
developing countries. The United States, however, is the only developed country
in the world that has not ratified the Basel Convention. In the U.S., action to
address e-waste problems is driven by nonprofits, such as e-stewards and
Greenpeace. The European Union has been very proactive in addressing the issue
of e-waste. Their Waste Electrical and Electronic Equipment Directive requires
electronics sellers to accept any of their used products brought back by
customers for recycling, free of charge. The EU’s goal is to have properly
recycled 85% of their waste by 2019. Japan also requires electronic
manufacturers to establish their own recycling facilities, or commission third
parties to recycle their products.
In China, in order for change to
occur domestically, there must be government and consumer pressure on
manufacturers to design electronics with end-of-life issues in mind so as to
facilitate the recycling process, as well as sell products with a prearranged
recycling service. Consumers, particularly, in China bear the burden for what
happens to electronics after they are used as there is little government
regulation and industry initiative. Aside from a government subsidized program,
“Home Appliance Old for New Rebate Program”, from 2009 to 2011 which collected
tens of millions of obsolete home appliances, little has been done within
China’s own borders to solve their e-waste crises.
Evidently, Guiyu is the world’s
well-kept secret. Not many know about the area’s perilous environmental and
human health situation resulting from e-waste disposal. It is imperative to
increase public awareness about the effects of exposure to toxic metals and
organic pollutants from e-waste, as well as arouse governments’ interest in the
public health and safety of residents in vast e-waste dumpsites like Guiyu. Change
is possible, and it begins with any consumer of electronic goods. Be an
informed consumer; know where your product is coming from, how it was made, and
where it will go when you no longer use it.
Sources:
"Researchers at State Environmental
Protection Key Laboratory of Dioxin Pollution Control Target Farming." Agriculture
Week
Han, Dai, et al.
"Elevated blood lead levels of children in Guiyu, an Electronic waste
recycling town in China." Environmental Health
Perspectives 115.7 (2007)
http://www.cnn.com/2013/05/30/world/asia/china-electronic-waste-e-waste/
http://www.ban.org/E-waste/technotrashfinalcomp.pdf
Acaroglu, Leyla. "Where do old cellphones
go to die?" New York Times 5 May 2013
http://www.greenpeace.org/eastasia/campaigns/toxics/problems/e-waste/guiyu/
http://www.greenpeace.org/eastasia/Global/eastasia/photos/toxics/ewaste/guiyu-woman-river.jpg
http://upload.wikimedia.org/wikipedia/commons/0/07/Guiyu-ewaste.jpg
http://www.greenpeace.org/eastasia/Global/eastasia/photos/toxics/ewaste/guiyu-woman-river.jpg
http://upload.wikimedia.org/wikipedia/commons/0/07/Guiyu-ewaste.jpg
No comments:
Post a Comment