Most immunoassays for determination of small molecules are still designed on the basis of the "trial and error" method, due to the lack of understanding of antibody recognition. In the present study, we developed a heterologous indirect competitive enzyme-linked immunosorbent assay for determination of triazine herbicides, with limits of detection for 11 triazines ranging from 0.05 to 29.4 μg/L...

Industries such as manufacturing, mining, and transportation have been experiencing mechanization and automation for well over 100 years. Agriculture, in contrast, has lagged behind and only in the last 30 years have these processes been adopted. Long considered a way of life rather than an industry, farming is now becoming as highly industrialized as the traditionally organized businesses. Pes...

Effluent concentration of chloride and two pesticides (prometon and atrazine) were measured during column displacement experiments at two water flow rates. A constant suction of approximately 1300 Pa was maintained in the packed soil columns which were positioned vertically on top of a vacuum chamber enclosing an automatic fraction collector. Measured breakthrough curves (BTC’s) were analyzed i...

The a dsorption capacities of three low-cost granular active carbons, used in a water treat ment fa cility for the re moval of the t riazine herbicid es propazine, pro metryn and pr ometon, wa s e valuated. Kin etic studie s showed that the three carbon sa mples used could be suitable in prac tice for the trea tment of moderate contents of the herbicides in contaminated waters. The apparent ads...

Over the past 15 years, significant research efforts have been channeled into assessing the effects of organic herbicides on freshwater phototrophic microbial communities. The results of this research are reviewed herein. The main conclusions we have reached after performing this review can be summarized into five points: · Most relevant assessments have dealt with the effects of triazine and p...

Atrazine is the most widely detected pesticide in the nation’s ground water and the USEPA has set 3 g L 1 Better management practices can counter deterioration of ground as the maximum contaminant level (MCL) in drinkwater quality. From 1991 through 1996 the influence of improved irrigation practices on ground water pesticide contamination was assessed ing water. at the Nebraska Management Syst...