Improving the ACGIH threshold limit value (TLV) process

Job level risk assessment using task level ACGIH hand activity level TLV scores: a pilot study.

Existing upper extremity musculoskeletal disorder analytical tools are primarily intended for single or mono-task jobs. However, many jobs contain more than 1 task and some include job rotation. This case/control study investigates methods of modifying an existing tool, the American Conference of Governmental Industrial Hygienists (ACGIH) Hand Activity Level (HAL) Threshold Limit Value (TLV), t...

Exposure-response relationships for the ACGIH threshold limit value for hand-activity level: results from a pooled data study of carpal tunnel syndrome.

OBJECTIVES This paper aimed to quantify exposure-response relationships between the American Conference of Governmental Industrial Hygienists' (ACGIH) threshold limit value (TLV) for hand-activity level (HAL) and incidence of carpal tunnel syndrome (CTS). METHODS Manufacturing and service workers previously studied by six research institutions had their data combined and re-analyzed. CTS case...

[Use of TLV-ACGIH (HAL) and Strain Index for the evaluation of the upper extremity biomechanical overload].

Pathologies due to repetitive activity of the upper limb, well known in scientific literature as WMSDs (Work Related Musculoskeletal Disorders), are considerably increased in the last years. At the moment, there are no validated methods for the assessment of the work-related risk. This study compares two different methods proposed in literature for the assessment of the work-related risk, combi...

Evaluation of the psychophysiological functions in humans exposed to the 'Threshold Limit Value' of 1,1,1-trichloroethane.

The origin and development of the asbestos Threshold Limit Value: scientific indifference and corporate influence.

Several recent articles have critiqued the process employed by the American Conference of Governmental Industrial Hygienists in determining Threshold Limit Values. Criticisms have included inadequate data collection, inadequate research, excessive corporate influence, and slow response to informational changes. In this article, the authors address the historical development of the American Conf...