Behavior of Pesticides in Water-Sediment Systems

2006 ◽  
pp. 133-251 ◽  
Author(s):  
Toshiyuki Katagi
Keyword(s):  
Pesticides In Water

scholarly journals A Simple Device for the On-Site Photodegradation of Pesticide Mixes Remnants to Avoid Environmental Point Pollution

2021 ◽  
Vol 11 (8) ◽  
pp. 3593
Author(s):  
Biagio Esposito ◽  
Francesco Riminucci ◽  
Stefano Di Marco ◽  
Elisa Giorgia Metruccio ◽  
Fabio Osti ◽  
...  
Keyword(s):  
Vibrio Fischeri ◽  
Analytical Data ◽  
Cost Effective ◽  
Freshwater Ecosystems ◽  
Point Sources ◽  
Pseudokirchneriella Subcapitata ◽  
Parent Molecule ◽  
Oxidation Processes ◽  
Sources Of Pollution ◽  
Pesticides In Water

The worldwide increase in the number and use of agrochemicals impacts nearby soil and freshwater ecosystems. Beyond the excess in applications and dosages, the inadequate management of remnants and the rinsing water of containers and application equipment worsen this problem, creating point sources of pollution. Advanced oxidation processes (AOPs) such as photocatalytic and photo-oxidation processes have been successfully applied in degrading organic pollutants. We developed a simple prototype to be used at farms for quickly degrading pesticides in water solutions by exploiting a UV–H2O2-mediated AOP. As representative compounds, we selected the insecticide imidacloprid, the herbicide terbuthylazine, and the fungicide azoxystrobin, all in their commercial formulation. The device efficiency was investigated through the disappearance of the parent molecule and the degree of mineralization. The toxicity of the pesticide solutions, before and during the treatment, was assessed by Vibrio fischeri and Pseudokirchneriella subcapitata inhibition assays. The results obtained have demonstrated a cost-effective, viable alternative for detoxifying the pesticide solutions before their disposal into the environment, even though the compounds, or their photoproducts, showed different sensitivities to physicochemical degradation. The bioassays revealed changes in the inhibitory effects on the organisms in agreement with the analytical data.

Development and comparison of direct immersion solid phase micro extraction Arrow-GC-MS for the determination of selected pesticides in water

2021 ◽  
Vol 164 ◽  
pp. 106006
Author(s):  
Seyed Mohammad Seyed Khademi ◽  
Amir Salemi ◽  
Maik Jochmann ◽  
Sasho Joksimoski ◽  
Ursula Telgheder
Keyword(s):  
Solid Phase ◽  
Solid Phase Micro Extraction ◽  
Pesticides In Water ◽  
Direct Immersion

Pesticides in Water, Sediments, and Shrimp from a Coastal Lagoon off the Gulf of California

1999 ◽  
Vol 38 (9) ◽  
pp. 837-841 ◽  
Author(s):  
J.G Galindo-Reyes ◽  
V.U Fossato ◽  
C Villagrana-Lizarraga ◽  
F Dolci
Keyword(s):  
Coastal Lagoon ◽  
Gulf Of California ◽  
Pesticides In Water
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