نتایج جستجو برای: dbps
تعداد نتایج: 390 فیلتر نتایج به سال:
BACKGROUND Exposure to disinfection by-products (DBPs) in drinking water has been associated with cancer risk. A recent study (Villanueva et al. 2007; Am J Epidemiol 165:148-156) found an increased bladder cancer risk among subjects attending swimming pools relative to those not attending. OBJECTIVES We evaluated adults who swam in chlorinated pools to determine whether exposure to DBPs in po...
Clinical studies have documented the promotion of respiratory ailments (e.g., asthma) among swimmers, especially in indoor swimming pools. Most studies of this behavior have identified trichloramine (NCl3) as the causative agent for these respiratory ailments; however, the analytical methods employed in these studies were not suited for identification or quantification of other volatile disinfe...
We report the characterization and determination of 2,6-dichloro-1,4-benzoquinone and three new disinfection byproducts (DBPs): 2,6-dichloro-3-methyl-1,4-benzoquinone, 2,3,6-trichloro-1,4-benzoquinone, and 2,6-dibromo-1,4-benzoquinone. These haloquinones are suspected bladder carcinogens and are likely produced during drinking water disinfection treatment. However, detection of these haloquinon...
Abstract The recirculation of pool water and the continuous input pollutants disinfectants in swimming pools intensifies accumulation disinfection byproducts (DBPs), which have received increasing attention. Trihalomethanes (THMs) are most common DBPs found water. Developing a predictive THM model is an efficient promising way to optimize chlorine dosage guarantee safety. Because main component...
Accurate particle detection is a common challenge in field characterization with digital holography, especially for gel secondary breakup dense complex particles and filaments of multi-scale strong background noises. This study proposes deep learning method called Mo-U-net which adapted from the combination U-net Mobilenetv2, demostrates its application to segment filament-droplet drop. Special...
Applications of advanced oxidation processes (AOPs) in water and wastewater treatment have been the subject growing interest throughout last decade. Although UV/hydrogen peroxide (UV-H2O2) is most established technology among UV-AOPs, UV-chlorine (UV-Cl) emerging as a reliable potentially more cost-effective alternative. Recent studies indicated that UV-Cl may be efficient economically favourab...
DNA-binding proteins (DBPs) are of great significance in many basic cellular processes. Experiment-based methods for identifying DBPs costly and time-consuming. To deal with large-scale DBP identification tasks, a variety computation-based have been developed. Inspired by previous work, we propose multiple Laplacian regularized support vector machine local behavior similarity (MLapSVM-LBS) to p...
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