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Health hazard evaluation report: HETA-2004-0016-2971, Lehigh Portland Cement Company, Union Bridge, Maryland.

Authors
Achutan-C
Source
NIOSH 2005 Jun; :1-8
NIOSHTIC No.
20027073
Abstract
On October 8, 2003, the National Institute for Occupational Safety and Health (NIOSH) received a request from the management of Lehigh Portland Cement Company in Union Bridge, Maryland, to conduct an evaluation of employee exposure to airborne dust. This request was made to ensure safe work conditions for employees after the company moved into a new facility. The evaluation was conducted on April 13 and 14, 2004. Full-shift personal breathing air zone samples for total and respirable dusts were collected from 19 employees over a 2-day period. In addition to particulate weight, total dust samples were analyzed for metal content, and respirable dust samples were analyzed for silica content. Area air samples were collected in five locations throughout the facility. In addition, bulk samples representing various types of dusts present at the facility were analyzed for metal and silica content. Five of the nineteen total dust samples exceeded the Mine Safety and Health Administration Permissible Exposure Limit of 10 mg/m3. The respirable dust samples did not exceed any exposure limits. In the total dust samples, aluminum, calcium, manganese, magnesium, titanium, sodium, and iron were present in quantifiable amounts. None of these metals exceeded any recommended or regulatory standards. Silica (quartz and cristobalite) was not present in any of the personal air samples. NIOSH investigators have determined that a health hazard exists at this facility due to overexposure to dust. This report contains recommendations to reduce worker exposure to the dust. This includes use of respirators in dusty areas.
Keywords
Region-3; Hazard-Confirmed; Dust-particles; Dusts; Cement-industry; Cements; Metal-dusts; Respiratory-protection; Respiratory-protective-equipment; Respirators; Respirable-dust; Quarries
CAS No.
7429-90-5; 7440-70-2; 7439-96-5; 7439-95-4; 7440-32-6; 7440-23-5; 7439-89-6; 14808-60-7; 14464-46-1
Publication Date
20050601
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
2005
NTIS Accession No.
PB2005-107523
NTIS Price
A03
Identifying No.
HETA-2004-0016-2971
NIOSH Division
DSHEFS
SIC Code
3241
Source Name
National Institute for Occupational Safety and Health
State
MD; OH
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