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Mercury control technology assessment study, Oak-Mitsui Corporation, Hoosick Falls, New York, in-depth survey report for the site visit of February 17-18, 1982, report no. CT-109-24b.

Authors
NIOSH
Source
NIOSH 1982 Jun; :1-23
NIOSHTIC No.
00183004
Abstract
An on site visit was made to the Oak-Mitsui Corporation, Hoosick Falls, New York to evaluate control systems in place to protect workers from exposures to elemental mercury (7439976) and mercury compounds. The facility manufactured copper foil for use in printed circuit board production. Major renovations have been made for improved mercury control including cooling jackets for mercury wells, local exhaust for mercury wells, and substitution of rotary contact devices for some mercury wells. A major mercury cleanup involving vacuuming and decontamination was conducted in August of 1980. Sixteen of the facility's 160 workers had a potential for mercury exposure on the job. A tour of the copper foil manufacturing operation was made and information on mercury controls obtained. Personal and area samples for mercury vapor indicated that the highest time weighted average personal exposure measured was 0.026mg/m3, well below the OSHA personal exposure limit of scale mercury cleanup, substitution for mercury when possible, temperature control, and enclosure and ventilation of mercury point sources. This facility did not rely on dilution ventilation for mercury control. On cold days, this enabled this facility to shut down its air supply system and have no negative impact on mercury vapor levels. The use of mechanical rotary contact devices, in addition to reducing mercury levels, also significantly reduced mercury usage, resulting in a cost benefit.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; Region-2; CT-109-24b; NIOSH-Contract; Contract-210-81-7107; Mercury-compounds; Air-quality-monitoring; Personal-protective-equipment; Electronic-equipment; Control-technology; Ventilation-systems
CAS No.
7439-97-6
Publication Date
19820618
Document Type
Field Studies; Control Technology
Funding Type
Contract
Fiscal Year
1982
NTIS Accession No.
PB89-130223
NTIS Price
A03
Identifying No.
CT-109-24b; Contract-210-81-7107
Priority Area
Control-technology
Source Name
National Institute for Occupational Safety and Health
State
NY; MD
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