Historically, regulatory decisions on the safety of chemicals to both humans and the environment have relied primarily on the availability of in vivo toxicity data to inform hazard and ultimately risk assessment. However, increasing recognition of the benefits of more mechanistically based scientific ...
certain natural substances that are low hazard; • non-isolated intermediates (chemicals that are manufactured with the sole purpose of being transformed into another substance); • substances subject to customs supervision; • substances covered by other specific provisions such as human and veter...
a distinction between the value of streams is made based on two quantifiable characteristics, thereby categorizing streams into high-grade and low-grade secondary resources. For calorific streams, high-grade and low-grade streams are distinguished based on their lower calorific value....
Categories Carbon Emissions Chemical/Petrochemical Clean Air Clean Energy Clean Water / Wetlands Coronavirus (“COVID-19”) Due Diligence / Compliance Electricity Markets Energy Energy Infrastructure/Pipelines Environmental Federal Energy Regulatory Commission ...
”While any chemical can be weaponized, the chemical agents traditionally of concern fall into four categories: nerve agents like sarin, which create an anticholinergic-like syndrome; vesicants like mustard gas, that cause a blistering or burn-like syndrome; cyanide, which interrupts aerobic metabolis...
Generally, source strength location can be divided into two categories, namely, one based on probability and statistics theory and the other based on optimization theory. The location method based on probability and statistics theory requires much data to be analyzed to solve the problem of fixed ...
Regardless of their diverse sources and types, the chemical compositions of food waste can be grouped into four different categories: protein, triglycerides from fats and oils, polysaccharide and lignin (Tuck et al., 2012). Because food wastes are often composed of various residual biomasses, thei...
In addition to quantitative risk assessment, potency information is also necessary as regulatory agencies require that sensitizers be classified into potency categories. The 2011 Globally Harmonized System of Classification and Labelling of Chemicals (GHS) edition introduced two subcategories for skin sensitiz...
In an effort to capture and collect mercury from coal fired systems and/or other emission sources of mercury, several known systems have been developed to address the problem, which generally fall into one of three categories. The first category is a group of methods and/or systems that captur...
For each of these three categories, name two examples that that might be considered when adapting a polymer to a particular end-use. Explain the difference between a thermoplastic and a thermoset, and comment on the molecular basis for their different properties, including crystallinity. Describe ...