Toxicology and Potential Health Risk of Chemicals that May be Encountered by Workers Using Forest Vegetation Management Options. Parts II, Exposure to and Absorption of Herbicides Used in Forestry PDF Download
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Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649836
Category : Foresters
Languages : en
Pages : 21
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Book Description
This paper reviews a variety of research studies of worker exposure in forestry & agriculture, as well as some observations of homeowners & lawn care workers, in order to consider the exposure of forest workers to herbicides. It first summarizes general approaches to the assessment of worker exposure to herbicides, then discusses research on such matters as absorption of herbicides through skin contact, protective measures, urinary excretion of herbicide after exposure, variations in exposure when using different types of applicator equipment, contact with treated vegetation as a source of herbicide exposure, and exposure following burning of treated vegetation. The final section makes suggestions toward developing exposure standards for forest workers.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649836
Category : Foresters
Languages : en
Pages : 21
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Book Description
This paper reviews a variety of research studies of worker exposure in forestry & agriculture, as well as some observations of homeowners & lawn care workers, in order to consider the exposure of forest workers to herbicides. It first summarizes general approaches to the assessment of worker exposure to herbicides, then discusses research on such matters as absorption of herbicides through skin contact, protective measures, urinary excretion of herbicide after exposure, variations in exposure when using different types of applicator equipment, contact with treated vegetation as a source of herbicide exposure, and exposure following burning of treated vegetation. The final section makes suggestions toward developing exposure standards for forest workers.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649843
Category : Dichlorophenoxyacetic acid
Languages : en
Pages : 45
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Book Description
2,4-D was first registered in 1947 as a broadleaf herbicide for use in all facets of vegetation management. Wide use of this herbicide has led to considerable research on the toxicology of 2,4-D formulations. This paper reviews research reported in the literature concerning the toxicology of 2,4-D and evaluates the risks to forest workers associated with exposure to 2,4-D formulations. It first summarizes the forms of 2,4-D used in commercial products and what is known about the behaviour of 2,4-D in the body (adsorption, metabolism, excretion). It then examines the herbicide's systemic toxicity (including human intoxication, general systemic effects, neurological effects, & effects on immune response), reproductive & developmental effects, mutagenic effects, and genetic toxicity & related cellular effects. The final section assesses the carcinogenic potential of 2,4-D, including discussion of the findings of several expert panels assembled to examine the experimental & epidemiological data. Selected epidemiological findings are also discussed specifically to illustrate the difficulties in deriving meaningful conclusions from these studies. Includes glossary.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649881
Category : Foresters
Languages : en
Pages : 17
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Book Description
This paper summarizes a series of reports on the toxicology & potential health risks of chemicals that workers conducting brushing activities may encounter. Topics covered include: the principles of health effects evaluation & risk evaluation; pesticide testing for registration; risks to workers associated with exposure to emissions from power saws; forest worker exposure to & adsorption of herbicides used in forestry; risks to workers using 2,4-D herbicide formulations; and risks to workers using glyphosate, hexazinone, or triclopyr formulations. Includes glossary.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649874
Category : Foresters
Languages : en
Pages : 15
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Book Description
Triclopyr (3,5,6-trichloro 2-pyridinyloxyacetic acid) is a herbicide active on broadleaf & woody plants. It is available as the butoxyethyl ester and the triethylamine salt. This paper reviews research reported in the literature concerning the toxicology of triclopyr and evaluates the risks to forest workers associated with exposure to triclopyr formulations. It first summarizes what is known about the behaviour of triclopyr in the body (adsorption, distribution, metabolism, excretion) and the acute & subacute toxicity of triclopyr. It then examines the herbicide's subchronic & chronic toxicity, reproductive effects, mutagenic effects, and carcinogenicity. The final section assesses the overall health risks to forest workers associated with the use of triclopyr ester. Includes glossary.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649867
Category : Foresters
Languages : en
Pages : 13
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Book Description
Hexazinone is a broad-spectrum soil-active herbicide available for forestry uses. This paper reviews research reported in the literature concerning the toxicology of hexazinone and evaluates the risks to forest workers associated with exposure to hexazinone formulations. It first summarizes what is known about the behaviour of hexazinone in the body (adsorption, distribution, metabolism, excretion) and the acute & subacute toxicity of hexazinone. It then examines the herbicide's subchronic & chronic systemic toxicity, reproductive & developmental toxicity, mutagenicity, and carcinogenic potential; and studies of forest worker exposure to hexazinone. The final section assesses the overall health risks to forest workers associated with the use of hexazinone. Includes glossary.
Author: Frank N. Dost
Publisher: [Victoria] Forest Practices Branch, BC Ministry of Forests
ISBN: 9780772649805
Category : Herbicides
Languages : en
Pages : 19
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Book Description
This paper reviews the basic principles of health effects evaluation and risk estimation for chemicals, with reference to herbicides commonly used in Canadian forestry. It first presents some general concepts related to toxicology, environmental chemistry, and epidemiology, then explains the nature of interactions between chemicals and the body. The dose-response relationship for systemic effects (effects other than cancer) and for chemically induced cancer is also reviewed. The final section sets out general considerations related to risk assessment and specific considerations related to systemic, threshold-based effects and irreversible effects, whether or not threshold-dependent. Includes glossary.
Author: T. L. Lavy
Publisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 2
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Book Description
Author: Minnesota. Department of Health. Section of Health Risk Assessment
Publisher:
ISBN:
Category : (2, 4-dichlorophenoxy) acetic acid
Languages : en
Pages : 84
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Book Description
Author:
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 124
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Book Description
Author: United States. Congress. House. Committee on Agriculture. Subcommittee on Forests
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 174
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Book Description
Of Pacific Northwest studies that report effects of vegetation management on tree growth -- Polarization of the herbicide problem -- Long-term field studies.
