نتایج جستجو برای: chemical assessments
تعداد نتایج: 439188 فیلتر نتایج به سال:
The biodegradation of organic substances is a natural yet poorly understood process. Given that biodegradation assessments form an integral part of chemical regulations to assess the persistent of substances this lack of knowledge needs to be addressed. Official references define the biodegradation process as "The biologically mediated degradation or transformation of chemicals usually carried ...
Protecting the population from chemical-biological attacks and outbreaks of infectious disease is a fundamental goal of health agencies, and early warning is critical for an effective response. However, such biosurveillance activities are inherently challenging due to the complexities involved in coordinating participants; determining the reliability of information; and drawing epidemiological ...
The potential of biologic markers to provide more timely and precise risk assessments for environmental carcinogens is viewed against the current state-of-the-art in biological monitoring/molecular epidemiology. Biologic markers such as carcinogen-DNA adducts and oncogene activation are currently considered valid qualitative indicators of potential risk, but for most chemical exposures research...
Aerosol-cloud interactions in the NASA GMI: model development and indirect forcing assessments N. Meskhidze, R. E. P. Sotiropoulou, A. Nenes, J. Kouatchou, B. Das, and J. M. Rodriguez School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA Schools of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA NASA Goddard Space Flig...
Chemical fate assessment in a river basin requires flow and sediment characterization that can be performed by continuous field measurements or modelling. Once this step is completed, the environmental modelling can be started. In current assessments done in Ecuador, field data are not easily available and are also scarce. Therefore, the use of models is a challenge. Two models, AGNPS and SWAT,...
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