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PROVIDING SOUND RECOMMENDATIONS ON HAZARDOUS EMISSIONS DURING E-WASTE MANAGEMENT: REDUCING ADVERSE HUMAN AND ENVIRONMENTAL HEALTH EFFECT IN TAIWAN

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Date
2011-12-09
Author
Kuo, Yu-Chun
Advisors
Stapleton, Heather M.
Hinton, David E.
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Abstract
Waste electrical and electronic equipment (e-waste) accounted for an increasing waste stream, both in growing rate and volume, during the past three decades. The compositions of e-waste include various metals and organic chemicals (used as plastics and additives like flame retardants). To recycle and/or reuse these metals or plastics from e-waste, industrial processes must dismantle, shred, and separate components. Such physical actions create hazardous exposure to human workers and the environment. This project was built on literature reviews regarding e-waste management and focuses on the problems of occupational exposure to toxic components present in e-waste streams. A class of toxic flame retardants, polybrominated diphenyl ethers (PBDEs), has been chosen. In this report I provide more definition of the problem and characterize PBDEs in the e-waste management in Taiwan, where I am from. Based on this information, I propose recommendations to minimize PBDEs exposure in the e-waste recycling systems. While shredding e-waste to retrieve materials, PBDEs are released from plastic components into air, and/or partitioned to atmospheric or dust particles. Workers thus become a high-risk exposure group from inhalation and ingestion pathways. Due to the ability of bioaccumulation, PBDEs pose an ongoing threat to exposed individuals. Also of concern is exposure to children due to the known effects on developmental neurotoxicity. Two commercial PBDEs, penta- and octa-BDEs, were banned or phased-out from use since 2004. The third mixture, deca-BDE, is scheduled for phase-out in 2013. Improved worker safety can reduce occupational exposure. However, dust carried to households of workers can be transferred to other family members, particularly children. In addition, attention to women workers of childbearing age can reduce exposure to the most vulnerable individuals. The Taiwan Environmental Protection Administration (TEPA) mandated e-waste recycling from 1998. Total of 22 registered facilities handled about 4.25 million e-wastes devices in 2010. Although Taiwan has reached an average recycling rate of over 50%, the items on recyclable in Taiwanese regulations represent only a small portion of those in the Waste Electrical and Electronic Equipment (WEEE) Directive. If worker safety can be improved, a greater proportion of used components can be recycled. Thus, improving occupational safety is critical. Recommendations made in this report include: use of proper personal protective equipment such as barrier clothing (i.e., aprons, high visibility shirts), dust respirators (N-95) and fabric gloves, improved workplace ventilation to filter out contaminated dust, requirement for separated storage lockers for worker protective devices and clean clothing. In addition, showering prior to donning individual street clothing and departure for home should be required. Furthermore, the hazardous substance guidelines in the processing facilities are not strictly framed. Regulated certification and inspections to ensure compliance auditioning should be performed regularly to prevent hazards exposure. Monitoring of PBDE levels of workers and in the working place is essential. With careful attention to the above, worker safety will be enhanced and exposure minimized while providing a means to recycle valuable materials from e-waste.
Type
Master's project
Department
Nicholas School of the Environment and Earth Sciences
Subject
E-waste
Occupational exposure
Neurodevelopmental toxicity
PBDEs
Occupational health and safety
Flame retardants
Permalink
https://hdl.handle.net/10161/4946
Citation
Kuo, Yu-Chun (2011). PROVIDING SOUND RECOMMENDATIONS ON HAZARDOUS EMISSIONS DURING E-WASTE MANAGEMENT: REDUCING ADVERSE HUMAN AND ENVIRONMENTAL HEALTH EFFECT IN TAIWAN. Master's project, Duke University. Retrieved from https://hdl.handle.net/10161/4946.
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This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.

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