Chemicals of commerce
نویسندگان
چکیده
منابع مشابه
Screening organic chemicals in commerce for emissions in the context of environmental and human exposure.
Quantitative knowledge of organic chemical release into the environment is essential to understand and predict human exposure as well as to develop rational control strategies for any substances of concern. While significant efforts have been invested to characterize and screen organic chemicals for hazardous properties, relatively less effort has been directed toward estimating emissions and h...
متن کاملPerfluorinated chemicals have been widely used in commerce for the last few decades
Introduction Perfluorinated chemicals have been widely used in commerce for the last few decades. Until recently little was known about their environmental fate and even less was known about their potential environmental effects. Since Giesy and co-workers first demonstrated the widespread occurrence of perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in wildlife there has...
متن کاملAnalysis of liquids and chemicals costs in a sample port
In recent years, the application of Activity-Based Costing in Port industry has been deeply researched in theory and practice, but researchers only concentrate on the bulk and general cargo’s ABC in loading and unloading operations and there is little about the liquids and chemicals’. Based on the liquids and chemicals’ handling process and the particularity of their cost accounting, the paper ...
متن کاملFlexural Behavior of Polyester Polymer Concrete Subjected to Different Chemicals
Polymer concrete (PC) is a composite material prepared by resin and aggregates. Advantages of polymer concretes include rapid curing at ambient temperatures, high flexural and compressive strengths, excellent chemical resistance and low permeability. In this research, a comparative study was performed on degradation of polyester resin concrete in different chemical solutions. Polymer concrete s...
متن کاملNature's chemicals and synthetic chemicals: comparative toxicology.
The toxicology of synthetic chemicals is compared to that of natural chemicals, which represent the vast bulk of the chemicals to which humans are exposed. It is argued that animals have a broad array of inducible general defenses to combat the changing array of toxic chemicals in plant food (nature's pesticides) and that these defenses are effective against both natural and synthetic toxins. S...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1953
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed030p217.3