UTL Repository >
ISA - Instituto Superior de Agronomia >
BISA - Biblioteca do Instituto Superior de Agronomia / Library >
BISA - Dissertações de Mestrado / Master Thesis >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/579

Title: Previsão do perigo ambiental de pesticidas e avaliação na água superficial de áreas de batata e cenoura
Authors: Paiva, Maria João Dias
Advisor: Cerejeira, Maria José Pais de Almeida
Keywords: batata
cenoura
pesticida
efeito tóxico
água superficial
potato
carrot
pesticide
toxic effects
surface water
Issue Date: 2008
Publisher: ISA
Abstract: An ecotoxicological characterisation of the potential hazard of the registered pesticides for potato and carrot was made throught modelling. It was evaluated surface water exposure to pesticides and toxic effects to aquatic biota in an agricultural area of the sub-basin South Estuary, where those crops have particular importance. Pesticide analysis in water was performed by solid phase microextraction (SPME) followed by gas chromatography-mass spectrometry (GC-MS). Acute toxic effects were determined by microbiotests on the basis of Daphnia magna crustacean and Pseudokirchneriella subcapitata algal. In 15 surface water samples, detection frequency was higher for the herbicides metribuzine, terbuthylazine and the insecticide chlorpyrifos. The maximum value of growth inhibition for algal was 62,42% in a sample from a lake, where the higher pesticide concentration level (metribuzine, 17,02 µg/L) was also registered. Immobility values to the crustacean were below 30%. The results showed that environmental conditions and agricultural management, namely pesticide use, associated to their potential contamination, and irrigation, influence surface water contamination by those products, pointed out the need for their adequate selection.
Description: Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia
URI: http://hdl.handle.net/10400.5/579
Appears in Collections:BISA - Dissertações de Mestrado / Master Thesis

Files in This Item:

File Description SizeFormat
PREVISÃO DO PERIGO AMBIENTAL DE PESTICIDAS E AVALIAÇÃO NA ÁGUA SUPERFÍCIAL DE ÁREAS DE BATATA E CENOURA.doc9.1 MBMicrosoft WordView/Open
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 
Estamos no RCAAP Governo Português separator Ministério da Educação e Ciência   Fundação para a Ciência e a Tecnologia

Financiado por:

POS_C UE