Farmers, policy makers, and other stakeholders seek tools to quantitatively assess pesticide risks for mitigating pesticide impacts on ecosystem and human health. This paper presents the Pesticide Use Risk Evaluation (PURE) decision support system (DSS) for evaluating site-specific pesticide risks to surface water, groundwater, soil, and air across pesticide active ingredient (AI), pesticide pr...

This study examined the role of self-monitoring support for writing skill improvement in a reciprocal peer review of writing system called SWoRD (Cho & Schunn, 2007). Because self-monitoring has been identified as a critical component in self-regulated learning (Butler & Winne, 1995; Cresswell, 2000; Zimmerman & Risemberg, 1997), students were provided with opportunities to self-monitor their w...

Pesticide exposure is one of the most important occupational risks in Thailand. A specific community based participatory model to reduce pesticide risk behaviors among rubber farmers in the Southern of Thailand remains limited. The study objectives were: (1) to develop community based participatory model to reduce pesticide risk behaviors among rubber farmers; and (2) to evaluate their knowledg...

AIM This study assesses the association between pesticide exposure in pregnancy, preterm birth (PTB) and shortened gestation. METHODS Pregnancy information was abstracted from the Centers for Disease Control (CDC) Non-Public Use Natality Datasets 1990-2005. Pesticide use in maternal county of residence was calculated using California Pesticide Use Reporting (PUR) data 1990-2005. Counties were...

It has long been recognized that the aqueous mixture of hydrogen peroxide and ferrous ion, known as the Fenton reagent, generates powerful oxidants. Furthermore, the chemical intermediates and reaction pathways of the type generated by this reagent have been implicated in oxidative damage in biological systems. Although the subject continues to be debated, the hydroxyl radical (.OH) is generall...

The enzymatic determination of hydrogen peroxide can be accomplished with high sensitivity and specificity using N-acetyl-3, 7-dihydroxyphenoxazine (Amplex Red), a highly sensitive and chemically stable fluorogenic probe for the enzymatic determination of H2O2. Enzyme-catalyzed oxidation of Amplex Red, which is a colorless and nonfluorescent derivative of dihydroresorufin, produces highly fluor...

background: migrant farmworkers are prone to several psychosocial stressors. objective: to investigate the effect of perceived psychosocial factors on pesticide exposure among seasonal migrant hispanic farmworkers in north carolina, usa. methods: a cross-sectional interview survey of 187 seasonal migrant farmworkers of mexican descent, identified from labor camps located in rural counties in no...

Agricultural pesticide use in Viet Nam has more than tripled since 1990. However, pesticide legislation and regulations have not been developed in response to this large increase in usage, as a result of which pesticides pose a serious threat to human health and the environment. This paper identifies the need to improve pesticide regulations in Viet Nam through a comparative analysis of pestici...

Pesticide runoff from impervious surfaces is a significant cause of aquatic contamination and ecologic toxicity in urban waterways. Effective mitigation requires better understanding and prediction of off-site transport processes. Presented here is a comprehensive study on pesticide washoff from concrete surfaces, including washoff tests, experimental data analysis, model development, and appli...