DDT was used intensively in vector control programs in Mato Grosso State until 1997. The present study aimed to determine DDT concentrations in blood samples from Brazilian National Health Foundation workers in Mato Grosso. Blood samples were analyzed from 41 sprayers, 20 drivers, and 14 unexposed workers, collected in June 1999 and October 2000 in two regions of the State (Sinop and C ceres). ...

OBJECTIVE To compare the effectiveness of a single residual spraying of pyrethroids on the occurrence and abundance of Triatoma infestans in peridomestic ecotopes in rural La Rioja. METHODS A total of 667 (32.8%) peridomestic sites positive for T. infestans in May 1999 were randomly assigned to treatment within each village, sprayed in December 1999, and reinspected in December 2000. Treatmen...

Droplet size spectra from different sprayers used to generate insecticide-laden fogs for controlling flying insects were measured by a laser diffraction instrument and Teflon-coated slides. The objectives of this work were to present not only information on spray-system droplet size generated by different sprayers, but to compare methodologies by which other similar systems can be evaluated and...

India being an agricultural land, pesticides consumption causes a serious environmental and public health problem. Due to the steep competition and a large demand, many farmers are resorting to extensive and rather over use of organophosphate pesticides to increase their agricultural yields. The sprayers who are involved in the spraying activity of pesticides in fields get the direct exposure o...

A prospective study was conducted in order to describe the incidence of eye symptoms, nose or throat symptoms, asthma and bronchitis among cleaners compared with former cleaners and according to the 'use of sprayers'. In 1989 and in 1991 questionnaire-based studies were conducted among female cleaners employed at Danish nursing homes, schools and offices. A cohort of 1,011 females was followed ...

BACKGROUND The longer term respiratory effects of massive inhalational exposure of textile printing sprayers to Acramin (the "Ardystil syndrome") are not well established. METHODS A 12 month follow up of 27 heavily exposed textile sprayers was performed. RESULTS Twenty one patients experienced cough, 18 dyspnoea, and 17 nose bleeding at initial exposure, with histological evidence of organi...

but also improves the uniformity of the spray pattern. Turbulence chamber nozzles are available in a turbo flood tip and now in the turbo flat-fan design. The turbo flatfan design shows great improvements in pattern uniformity when compared to the extended range flat-fan and other drift reduction flat-fan designs. In addition, the turbo flat-fan has significantly reduced the percentage of drift...

Secondary exposure to pesticide residues on the external surfaces of sprayers does not currently form part of the risk assessment process. A measure of the ease with which residues may be transferred from the sprayer surface to the operator would enhance the accuracy of any such assessment. This study quantified the dislodgeability of six pesticides from sprayer surfaces in order to calculate t...

Recently, technological development has become increasingly pronounced, with great advances in all production areas, including agriculture. In the agricultural sector, improvements machinery and study of new techniques have resulted increased efficiency productivity different crops. particular, UAVs (unmanned aerial vehicles) are used Among latest utilities is application phytosanitary products...