Malathion has been identified in at least 21 of the 1,623 hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (HazDat 2003). However, the number of sites evaluated for malathion is not known. The frequency of these sites can be seen in Figure 6-1. All of the 1,623 sites are located within the United States; none of the sites are located in the C...

In an area of India where the main rural malaria vector, Anopheles culicifacies Giles, has developed triple resistance to DDT, HCH, and malathion sprayed indoors in antimalaria program, bifenthrin (10% wettable powder) was evaluated in a randomized house-scale trial between July 1999 and March 2000. Entomological impact of four serial doses of bifenthrin (25, 50, 100, and 200 mg/m2) sprayed in ...

Organophosphorus pesticides (OPPs) play a vital role in agriculture. However, their release into the environment can have serious repercussions. Therefore, development of rapid and reliable methods for determining OPPs has received considerable attention recent decades. Here, new chemosensor based on complex vitamin B1 (vitB1) as ligand with europium(III) ion, 1:2 stoichiometric ratio, was deve...

An inexpensive and rapid bioassay using adult red flour beetles was developed for use in assessing the decontamination of environments containing organophosphates and related chemicals. A decontamination protocol was developed which demonstrated that 2 to 3 applications of 5% bleach solution were required to obtain nearly complete decontamination of malathion. The bioassay was also used to scre...

Background: The presence of pesticides is very prevalent in surface waters of Iran due to their huge consumption for agricultural purpose. These toxic substances may accumulate in the food chain and cause serious ecological and health problems. Chemical pesticides with persistent molecules (long half-life periods) pose a threat to aquatic life forms and the human population consuming the affe...

This research aims to evaluate the presence and distribution of pesticides in Babolrood River of Mazandaran Province in Iran. Mean diazinon levels in surface water ranged from 77.6 to 101.6 μg L(-1) with maximum level of 768.9 μg L(-1) and mean malathion levels ranged from 55.7 to 75.9 μg L(-1) with maximum level of 506.6 μg L(-1). The residues of malathion and diazinon pesticides in all of the...

Microbial enzymes produced using biological processes are of great importance due to their contribution sustainable solutions for agricultural production. In our previous study, the chitinase enzyme from Lactobacillus coryniformis was purified, immobilized zinc oxide (ZnO) nanoparticles, and its effectiveness as a bioinsecticide against storage pest Sitophilus zeamais Motschulsky, 1855 (Coleopt...

Bu çalışmada malathionun oksidatif stres biyobelirteçleri ve karaciğer enzimleri üzerine etkileri ile kafeik asit fenetil esterin malathiona karşı koruyuculuğunun araştırılması amaçlandı. Çalışmada her grupta 10 adet hayvan olacak şekilde toplam 40 (200-240 g) erişkin erkek Spraque Dawley ırkı rat kullanıldı. kontrol (K) grubuna gavaj yoluyla 5 ml/kg mısır yağı, malathion (MAL) mg/kg malathion,...

Cyanobacteria contribute significantly to the maintenance of flooded rice field fertility. In this investigation, the protective effect of osmolytes and antioxidative enzymes was studied on the paddy field cyanobacterial biofertilizer; Anabaena variabilis exposed to Malathion pesticide. With increasing concentration of malathion the test organism showed increased free radical mediated toxicity....

A case involving a fatal poisoning (suicide) by the insecticide malathion is described. The intact insecticide was found in the post-mortem blood and gastric contents at concentrations of 1.8 and 978 micrograms/ml, respectively. None of the insecticide was found in the autopsied liver tissue. Gas chromatography-mass spectrometry (GC-MS) techniques were used for the identification and quantifica...