نتایج جستجو برای: chlor
تعداد نتایج: 674 فیلتر نتایج به سال:
The sources of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) found in animal feed additive (feed grade cupric sulfate, CuSO4) were investigated and traced back to the formation of chlorinated organic compounds in the chlor-alkali industry. PCDD/Fs could be transported through the supply chain: hydrochloric acid (HCl) by-produced during formation of chlorinated organic compounds in c...
Busulfan causes long-lasting defects in the hematopoietic stem cells and in the immune system of mice. We designed studies to determine whether Chloramphenicol further damaged the already defective hematopoietic stem cells of mice that were pretreated with busulfan, and we unexpectedly observed that mice given injections of the combination of busulfan and Chloramphenicol developed lymphomas in ...
Critical algal blooms in lakes increased the concentration of algal organic matter (AOM), significantly altering the drinking water treatment requirements, including coagulation, oxidation and disinfection. This study utilized Microcystis aeruginosa (cyanobacteria), Scenedesmus quadricauda (Chlorella) and Nitzschia palea (diatom) as models to investigate the AOM's primary characteristics and th...
The Ria de Aveiro (Portugal) is a coast al lagoon adjacent to the Atlantic Ocean and it has an inner bay (Laranjo bay) that received a highly contaminated effluent discharged by a mercury cell chlor-alkali plant from the 1950s until 1994. The aim of this study is to review in a holistic way several research studies that have been carried out in the Ria de Aveiro, in order to evaluate the remobi...
Mercury emissions from chlor-alkali plants have been past and present sources of soil contamination with Hg. Here we calculate net mercury (Hg) deposition to soils in the vicinity (100-1000-m downwind) of three-chlor alkali plants. Calculations were based on spatial distribution patterns of Hg concentrations in soils, which were extrapolated by kriging. Moreover, we investigated to what extent ...
Based on published chronologies of Hg contamination to the SaguenayrSt. Lawrence system as well as sedimentary profiles for this heavy metal in the Lower St. Lawrence Estuary, we have established a 100]200 year chronology in the studied sediments and reassessed sedimentation rates for the estuarine system. Our results suggest that sedimentation rates might be higher, by a factor of 1.5]2, than ...
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