Assessment of the exposure of workers applying herbicide mixtures (2,4-D+Roundup, Garlon-3A+Roundup), toxicity and fate of these mixtures in the environment : summary report.

Abdelghani, A. A.; Tulane University. Department of Environmental Health Sciences

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Assessment of the exposure of workers applying herbicide mixtures (2,4-D+Roundup, Garlon-3A+Roundup), toxicity and fate of these mixtures in the environment : summary report.

1995-06-30
By Abdelghani, A. A.

[PDF-1.30 MB]

English

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Alternative Title:

Assessment of the exposure of workers applying herbicide mixtures (2,4-D+Roundup, Garlon-3A+Roundup), toxicity and fate of these mixtures in the environment.
Creators:

Abdelghani, A. A.
Corporate Creators:

Tulane University. Department of Environmental Health Sciences
Corporate Contributors:

Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration

Louisiana. Dept. of Transportation and Development ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

2,4-D Accumulation Adsorption Breathing Zone Concentration (Chemistry) Garlon 3A Herbicides Reference Dose Roundup Sediments Toxicity Trend Water Quality
Publication/ Report Number:

FHWA/LA-95/294
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Corporate Publisher:

Tulane University. Department of Environmental Health Sciences
Abstract:

The present study was conducted for four consecutive years to assess the exposure of field workers applying herbicide mixtures (2,4-D + Roundup and Garlon 3A + Roundup) and to determine the toxicity and fate of these herbicides in the environment. Study results indicated that exposure of workers to these mixtures via inhalation was insignificant compared to threshold limit values (TLVs) set by the American Conference of Governmental Industrial Hygienists (ACGIH, the National Institute for Occupational Safety and Health (NIOSH) and the Occupational Safety and Health Administration (OSHA) for the protection of human health. In addition, herbicide concentrations in the urine of these workers were much higher than those found in air samples collected from breathing zones. This was probably due to exposure via ingestion (eating without proper hand washing) and/or exposure via dermal contact. The analysis of samples taken from the environment including sediment and water collected over three years indicated that 2,4-D, Roundup and Garlon-3A did not pose an immediate (acute) risk to aquatic life in water bodies adjacent to herbicide treated areas on the right-of-way. Moreover, fish, crawfish and microbial acute bioassay results showed that harmful concentrations were not likely to occur as a result of herbicide use under current application rates recommended by the manufacturers.
Format:

PDF
Funding:

90-6SS
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:39ae7d68d6c706c356f0f416ad8a2b7928230c432f340678483408c99f45331c
Download URL:

https://rosap.ntl.bts.gov/view/dot/22234/dot_22234_DS1.pdf
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Assessment of the exposure of workers applying herbicide mixtures (2,4-D+Roundup, Garlon-3A+Roundup), toxicity and fate of these mixtures in the environment : summary report.

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