نتایج جستجو برای: environmental water
تعداد نتایج: 874854 فیلتر نتایج به سال:
. Abstroct: Ceará shclf waters response to steady and transicnt wind forcing, from Ponta Cajuais (04°42'S, 37"19.5'W) to Ponta de ltapagé (02°50SS, 4QoOQ'W), was studied using a hydrodynamic numerical mode\. The finitc difference model was based upon the equations for a barotropic ocean in general form: advective and quadratic surface and bottom stress terms were included. Seasonal differences ...
Estuarine waters are generally more turbid than lakes or marine waters due to greater algal mass and continual re-suspension of sediments. The varying effects of diurnal and seasonal prevailing winds on the turbidity condition of a wind-dominated estuary were investigated by spatial and statistical analyses of wind direction, water level, turbidity, chlorophyll a, and PAR (Photosynthetically Ac...
Using an integrated physical and biological approach, we examined across-shelf advection and exchange and the associated transport of bivalve larvae in the presence of a strong coastal current separated from the coast by a stratified inshore environment. We tested the hypothesis that the interface of the coastal current and inshore waters can act as an ecological barrier to across-shelf transpo...
This study proposes to develop methodologies for public water supply quality control by implementing evaluation and control mechanisms and enhancing environmental health surveillance decision-making. These objectives were based on data for waterborne diseases recorded at the Rio de Janeiro State Health Department. We selected the following neighborhoods: Posse (1st Township) and Caioaba (5th To...
Environmental quality monitoring of water resources is challenged with providing the basis for safeguarding the environment against adverse biological effects of anthropogenic chemical contamination from diffuse and point sources. While current regulatory efforts focus on monitoring and assessing a few legacy chemicals, many more anthropogenic chemicals can be detected simultaneously in our aqu...
Lay people have difficulty understanding the meaning of environmental health risk information. Visual images can use features that leverage visual perception capabilities and semiotic conventions to promote meaningful comprehension. Such evidence-based features were employed to develop two images of a color-coded visual scale to convey drinking water test results. The effect of these images and...
Introduction: This study aimed to evaluate the most important public environmental issues and concerns, the public knowledge about these issues, as well as the quality of environmental issues in Rafsanjan, Iran. Materials and Methods: In this descriptive-analytical study, 384 people were randomly selected from Rafsanjan City and their public environmental issues and concerns were evaluated. Th...
Aside from our technical response to Dr. Held1 we also wish to discuss the criteria he uses to assess our manuscript. All theories should be subjected to similar standards of scrutiny regardless of whether they conform to conventional thinking or not. We find many examples to show that much of the argument against our theory and in favour of conventional ideas appears based on misconceptions. W...
environmental contamination, including the Barnstable Airport. We agree with Schaider et al. that these exposures may also contribute to the risk of breast cancer, although the earliest data we are aware of show no appreciable levels of volatile halogenated compounds in 1984 BWC water samples (Janik 1987). With only limited historical data available, we cannot be sure of the exact timing and ge...
Lead in school drinking water: Canada can and should address this important ongoing exposure source.
Reducing all preventable lead exposures in children should be a public health priority given that blood lead levels in children that were once considered "safe" have since been associated with important neuro-developmental deficits. Limited Canadian data indicate that school drinking water can be an important component of children's overall exposure to lead. Outside of Ontario, however, Canadia...
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