Persistence and effect of management practices on organochlorine residues in soils of subtropical New South Wales

McDougall, K. W.; Harris, C. R.; Fenton, I. G.; Dowman, Antony A.

doi:10.1007/bf00197428

Cited by 11 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the basis of this study, it is evident that DDE is plainly a much more persistent chemical than is DDT. It is consistent with other data in previous literature ( − ). The area around Pilliga (the Pilliga scrub) has low levels of residues consistent with little or no application, as it is an uncleared area, mainly consisting of native vegetation regrowth.…”

Section: Resultssupporting

confidence: 94%

Mapping the Distribution of DDT Residues as DDE in the Soils of the Irrigated Regions of Northern New South Wales, Australia Using ELISA and GIS

Shivaramaiah

Odeh

Kennedy

et al. 2002

J. Agric. Food Chem.

View full text Add to dashboard Cite

An enzyme-linked immunosorbent assay (ELISA) specific for DDE [1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene] has been used to map DDT [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane)] residues in the top 10 cm of soil in three river valleys of northern New South Wales, Australia. Despite being almost 20 years since DDT was last applied for cotton growing in these areas, the relationship between sites of greatest application and current residue levels was strong. DDE concentrations in the range 0-2 ppm were found, although most the 389 soil samples examined contained less than 0.2 ppm of DDE. Although some relationship between mode of land use and current residue levels was apparent, this varied from valley to valley and may have reflected different farming practices and times of application. The study demonstrates that the combination of ELISA and geographical information system (GIS) analysis provides an effective means of displaying levels of soil contamination by a pesticide and the possible need for remediation.

show abstract

Section: Resultssupporting

confidence: 94%

Mapping the Distribution of DDT Residues as DDE in the Soils of the Irrigated Regions of Northern New South Wales, Australia Using ELISA and GIS

Shivaramaiah

Odeh

Kennedy

et al. 2002

J. Agric. Food Chem.

View full text Add to dashboard Cite

show abstract

“…Since the CAES site remained in turf for 38 years, the observed reduction in chlordane content in the surface layer cannot be attributed to dilution effects from deep tilling of the soil. Deep ploughing has been reported to be the sole cultivation practice that reduced soil γ-chlordane concentration (24). The minimal vertical movement observed is in agreement with data from Bennett and Stewart for weathered residues (25,26) but not with data from a clay loam low in organic matter (7).…”

Section: Resultssupporting

confidence: 75%

Impact of Long-Term Weathering, Mobility, and Land Use on Chlordane Residues in Soil

Mattina

Iannucci-Berger

Dykas

et al. 1999

Environ. Sci. Technol.

View full text Add to dashboard Cite

The use of technical chlordane, a mixture of 147 separate components, and chlordane-containing products has been illegal in the United States since 1988. Technical chlordane is a member of the persistent organic pollutants (POPs), all of which exhibit remarkably long half-lives in the environment. Due to its persistence, its former use at extremely high application rates, and its toxicity, technical chlordane in soil may be present at levels of concern to public health. Concentrations at a site for which the date and rate of application of technical chlordane were recorded permit an accurate description of its weathering and an assessment of its vertical and horizontal movement during the past several decades. This site also allows computation of half-life as an average across the 147 components in soil 38 years after application using explicitly stated assumptions. Levels of technical chlordane in soils spanning a variety of land uses including agricultural sites, residential lawns and gardens, and foundation sites are also presented.

show abstract

“…Residues from organochlorine insecticides are still present 25 years after the discontinuance of their use [30]. Moreover, the management of insecticide residues (dieldrin) in soils has been mostly unsuccessful [31]. Environmental pollution by endosulfan is important since endosulfan persists in soil and water for several years [32] and has been found in high concentrations in sediments [33].…”

Section: Discussionmentioning

confidence: 99%

Action of Insecticides on the Cellular Immune Reaction of Drosophila Melanogaster Against the Parasitoid Leptopilina Boulardi

Delpuech¹,

Frey²,

Carton³

1996

Environ Toxicol Chem

View full text Add to dashboard Cite

Abstract-Drosophila larvae infested by endoparasitoids can survive the infestation by an immune reaction leading to the encapsulation and destruction of parasitoid eggs. Conversely, parasitoids can escape the encapsulation by inhibiting this immune reaction. These processes could be influenced by exposure to pesticides, so an experiment was designed to investigate this possibility. Two strains of Drosophila melanogaster Meigen were tested, one with a high capacity for encapsulation (reactive strain) and the other with a very low capacity for encapsulation (nonreactive strain). We compared their immune reaction capacity after infestation when reared on a medium containing or not containing an LD30 of insecticide. Six different insecticides were tested. Two appeared to modify the effectiveness of the immune reaction. When the reactive strain was tested, dieldrin decreased the success of the immune reaction by 25%, and endosulfan, by 23%. Endosulfan also decreased the encapsulation rate of this strain by 26%. With the nonreactive strain no effect was observed regardless of insecticide. The possible causes of these weakening of encapsulation ability and their consequences on the evolution of these species are discussed.

show abstract

Persistence and effect of management practices on organochlorine residues in soils of subtropical New South Wales

Cited by 11 publications

References 6 publications

Mapping the Distribution of DDT Residues as DDE in the Soils of the Irrigated Regions of Northern New South Wales, Australia Using ELISA and GIS

Mapping the Distribution of DDT Residues as DDE in the Soils of the Irrigated Regions of Northern New South Wales, Australia Using ELISA and GIS

Impact of Long-Term Weathering, Mobility, and Land Use on Chlordane Residues in Soil

Action of Insecticides on the Cellular Immune Reaction of Drosophila Melanogaster Against the Parasitoid Leptopilina Boulardi

Contact Info

Product

Resources

About