Author: Publisher:
ISBN:
Category : Epoxy compounds
Languages : en
Pages : 208
Book Description
Toxicological Profile for Heptachlor and Heptachlor Epoxide
Author: Chlordane and Heptachlor in Relation to Man and the Environment
Author: United States. Environmental Protection Agency. Office of Pesticide ProgramsPublisher:
ISBN:
Category : Chlordan
Languages : en
Pages : 104
Book Description
Toxicological Profile for Heptachlor/heptachlor Epoxide
Author: Chlordane and Heptachlor Use Cancellation
Author: Heptachlor Contamination
Author: Jerry RafatsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 20
Book Description
EPA Actions to Cancel and Suspend Uses of Chlordane and Heptachlor as Pesticides
Author: United States. Environmental Protection Agency. Office of Pesticide ProgramsPublisher:
ISBN:
Category : Chlordan
Languages : en
Pages : 370
Book Description
Economic Impact of Discontinuing Farm Uses of Heptachlor
Author: Herman W. DelvoPublisher:
ISBN:
Category : Insecticides
Languages : en
Pages : 28
Book Description
Residues of DDT, Dieldrin, and Heptachlor in Earthworms During Two Years Following Application
Author: Charles D. GishPublisher:
ISBN:
Category : Earthworms
Languages : en
Pages : 24
Book Description
Study plots were treated with specific quantities of active ingredient per hectare with either DDT, dieldrin, or heptachlor. Earthworms and soils were sampled from each treated plot at specific time intervals (up to 2 years after treatment) and analyzed by gas chromatography for specific pesticide residues. Individual and total metabolites in soils and earthworms tended to increase linearly with increasing levels of application. In soils, losses of specified biocides varied by species over time ranging from no significant loss to a decrease in heptachlor during the two years following application. In earthworms, maximum residues usually occurred 2-4 months after application, then declined. During the decline, residue levels were cyclic: levels elevated from late spring to early fall and depressed from late fall to early spring. High levels (usually May) and lows (usually January) coincided with seasonal high and low activity of eathworms.
Author: 
Author: