Elevated levels of urinary 8-hydroxy-2'-deoxyguanosine in male electrical and electronic equipment dismantling workers exposed to high concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans, polybrominated diphenyl ethers, and polychlorinated biphenyls

To investigate the occupational exposure levels to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polybrominated diphenyl ethers (PBDEs), and polychlorinated biphenyls (PCBs), indoor dust (n = 3) in workshops and hair samples from male workers (n = 64) were collected at two electrical and electronic equipment waste (E-waste) dismantling factories located in the LQ area in east China in July 11-13, 2006. Pre- and postworkshift urines (64 of each) were also collected from the workers to study oxidative damage to DNA using 8-hydroxy-2'-deoxyguanosine (8-OHdG) as a biomarker. The concentrations of PCDD/Fs, PCDD/F-WHO-TEQs, PBDEs, PCBs and PCB-WHO-TEQs were (50.0 +/- 8.1) x 10(3), 724.1 +/- 249.6, (27.5 +/- 5.8) x 10(6), (1.6 +/- 0.4) x 10(9), (26.2 +/- 3.0) x 10(3) pg/g dry weight (dw) in dust, and (2.6 +/- 0.6) x 10(3), 42.4 +/- 9.3, (870.8 +/- 205.4) x 10(3), (1.6 +/- 0.2) x 10(6), 41.5 +/- 5.5 pg/g dw in hair, respectively. The homologue and congener profiles in the samples demonstrated that high concentrations of PCDD/Fs, PBDEs, and PCBs were originated from open burning of E-waste. The 8-OHdG levels were detected at 6.40 +/- 1.64 mu mol/mol creatinine in preworkshift urines. However, the levels significantly increased to 24.55 +/- 5.96 mu mol/mol creatinine in postworkshift urines (p < 0.05). Then, it is concluded that there is a high cancer risk originated from oxidative stress indicated by the elevated 8-OHdG levels in the E-waste dismantling workers exposed to high concentrations of PCDD/Fs, PBDEs, and PCBs.

Studies of automatic technology : a case study of a company manufacturing electronic equipment.

Cover title.

Reliability stress and failure rate data for electronic equipment.

Cover title.

Trouble shooting electronic equipment; an empirical approach to the identification of certain requirements of a maintenance occupation. A report of an aspect of a research project under Air Force Contract no.33 (038)-13236, Project no. 507-007-0001,

Bibliography: p. 100-102.

Design manual of natural methods of cooling electronic equipment; report no. HF-845-D-8. Contract no. NObsr-63043, Bureau of Ships-index no. NE-111611, Sub-task 2.

"Non registered."

Investigation of methods of fresh water cooling electronic equipment; interim report.

"Contract no. NObsr-72773, Bureau of Ships, Index no. NE-110,000."

Design of shock and resistant vibration electronic equipment for shipboard use.

NAVSHIPS 900, 185A

A report on electronic equipment disposal and recycling : reporting to Governor Rod R. Blagojevich, the 94th General Assembly, and IEPA director, Doug Scott.

"May 12, 2006."

Direct support and general support maintenance repair parts and special tools lists (including depot maintenance repair parts and special tools) for maintenance kit, electronic equipment, MK-733/ARC-54 (NSN 5821-00-901-4327).

"November 1978."

Organizational maintenance repair parts and special tools lists for maintenance kit, electronic equipment, MK-722/URC (NSN 6625-00-082-4275).

"August 1978."

Organizational maintenance repair parts and special tools lists for maintenance kits, electronic equipment, MK-731/ARC-51X (NSN 6625-00-082-4057) and MK-731A/ARC-51X (NSN 6625-00-803-1300).

"March 1979."

Organizational, direct support, and general support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for repair facility, electronic equipment OA-8991/MSM (NSN 6625-01-070-4404).

"24 August 1983."

General support maintenance repair parts and special tools lists for maintenance kit, electronic equipment, MK-722/URC (NSN 6625-00-082-4275).

"July 1978."

Organizational maintenance repair parts and special tools list for electronic equipment configuration for Army helicopter OH-6A (with standard lightweight avionics equipment) (NSN 1520-00-918-1523).

"February 1979."