EVALUATING ENVIRONMENTAL HAZARDS OF LAND APPLYING COMPOSTED DIAZINON USING EARTHWORM BIOASSAYS

Autor:	Duane F. Berry, Jarrod E. Leland, Donald E. Mullins
Rok vydání:	2001
Předmět:	Insecticides Eisenia fetida Diazinon Biological Availability engineering.material complex mixtures Xenobiotics chemistry.chemical_compound Bioreactors Bioremediation Toxicity Tests Animals Soil Pollutants Oligochaeta Pesticide residue biology Ecology Compost fungi Earthworm General Medicine Pesticide biology.organism_classification Pollution Soil contamination chemistry Environmental chemistry Acetylcholinesterase engineering Environmental science Biological Assay Cholinesterase Inhibitors Food Science
Zdroj:	Journal of Environmental Science and Health, Part B. 36:821-834
ISSN:	1532-4109 0360-1234
DOI:	10.1081/pfc-100107415
Popis:	Environmental hazards resulting from land application of composted pesticide residue have not been rigorously evaluated. This study was conducted to examine the toxicity of a composted pesticide residue using earthworms (Eisenia foetida Savigny) as a microinvertebrate model in a soil bioassay system. Diazinon, which was used in these experiments as a test pesticide, was removed from simulated rinsate (wastewater) by sorption onto peat moss. Following the rinsate clean-up phase, diazinon-laden peat moss was placed into bioreactors and composted for either 30 or 60 days. Earthworms were then exposed to soil amended with the composted material. Mortality and symptomatic effects characteristic of acetylcholinesterase inhibition, including weight loss, reduced burying ability and curling, occurred in earthworms exposed to soil amended with either uncomposted or 30-day composted diazinon, but not in those exposed to soil amended with 60-day composted diazinon. The amount of solvent-extractable diazinon from compost was not directly related to acute earthworm toxicity based on the selected criteria. These results indicated a reduction in diazinon bioavailability during latter 30 d of composting that did not correspond to a reduction in solvent-extractable diazinon concentrations. Measuring symptomatic effects of xenobiotics as described in this study may increase the sensitivity and diagnostic ability of earthworm bioassays.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbf8bc437cfeac6fdffbbb34e2fe8dc4 https://doi.org/10.1081/pfc-100107415 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.