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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Determinacion de plaguicidas organoclorados en suelos agricolas del valle de
Determinacion de plaguicidas organoclorados en suelos agricolas del valle de
Author : SAMUEL CARDENAS (1), EDILBERTO GUEVARA (2) & ADRIANA MARQUEZ (3)
ABSTRACT
A non-experimental research at field and laboratory was performed in order to determine organochlorine pesticides (OCPs)
in soil samples from the river valley Tucutunemo Samples were taken between 25 and 30 cm deep in five locations with
three replications , located approximately every 3 Km ,. The samples were dried at ambient for three days and sieved in
sieve with 1 mm mesh. 2000 and ISO / IEC 17025: 6630 and methodology 99-B / C, as described in: Standard Method for
the Analysis of Water and Wastewater-APHA AWWA for the determination of pesticides, the 2534 standards were used
COVENIN -WPCF, issue No. 17 (1989). We considered 14 POC common of which were detected: aldrin, 4,4'-DDE and 4,4'-
DDT. The rest, recorded concentrations <0.02 mg / kg. The variance analysis of the results shows significant differences (p
0.05) from the mean concentrations of POC in different locations. It is concluded that POC is present in agricultural soils
Tucutunemo Valley, in varying concentrations, highlighting the locality 1, 24.8 mg / kg of aldrin, 4,4'-DDE and 4,4'-DDT,
although the results are below the regulation established by the Bolivarian Republic of Venezuela, however, these values
could serve as a reference for future research. Moreover, the physical analysis of these soils, show that soils are fertile, with
silty-clay-loam, good percentage of organic matter and pH close to 7
File Size : 292,088 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 18/08/2015
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