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001-es BibID:	BIBFORM068988
Első szerző:	Kötelesné Suszter Gabriella (műszeres analitikus szakvegyész)
Cím:	Distribution of pesticide residues in soil and uncertainty of sampling / Gabriella K. Suszter, Árpád Ambrus
Dátum:	2017
ISSN:	0360-1234
Megjegyzések:	Pesticide residues were determined in about 120 soil cores taken randomly from the top 15 cm layer of two sunflower fields about 30 days after preemergence herbicide treatments. Samples were extracted with acetone-ethyl acetate mixture and the residues were determined with GC-TSD. Residues of dimethenamid, pendimethalin, and prometryn ranged from 0.005 to 2.97 mg/kg. Their relative standard deviations (CV) were between 0.66 and 1.13. The relative frequency distributions of residues in soil cores were very similar to those observed in root and tuber vegetables grown in pesticide treated soils. Based on all available information, a typical CV of 1.00 was estimated for pesticide residues in primary soil samples (soil cores). The corresponding expectable relative uncertainty of sampling is 20% when composite samples of size 25 are taken. To obtain a reliable estimate of the average residues in the top 15 cm layer of soil of a field up to 8 independent replicate random samples should be taken. To obtain better estimate of the actual residue level of the sampled filed would be marginal if larger number of samples were taken.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban Pesticide residues in soil distribution of pesticide residues uncertainty of sampling
Megjelenés:	Journal of Environmental Science and Health Part B-Pesticides Food Contaminants and Agricultural Wastes. - 52 : 8 (2017), p. 557-563. -
További szerzők:	Ambrus Árpád
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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