Exact(1)
The properties of concerns only attributed to certain PFAAs or precursor substances are not addressed.
Similar(59)
Nonetheless, they have other properties of concern and are already widely distributed in the environment, also in remote regions.
The REACH Regulation does not directly address these emerging properties of concern, complicating the implementation of regulatory measures.
The statistical properties of concern include the mean value and coefficient of variation (COV) of the model factor.
Due to the special properties of short-chain PFASs, they might not fulfill the "classical" properties of concern of SVHCs, being clearly defined within Article 57(d and e) of the REACH Regulation.
However, given the properties of concern (see "Overview of concerns of short-chain PFAAs") and the already existing pollutions (see "Case example Rastatt"), there is an unequivocal need for regulation of short-chain PFASs.
The replacement of long-chain PFASs with short-chain PFASs and in general other PFASs is highly criticized [15 17], as short-chain PFASs have also relevant properties of concern.
However, short-chain PFAAs are as persistent as long-chain PFAAs have different, but not less alarming properties of concern, and are already widely distributed in the environment [e.g., 19 27].
The target properties of concern include the optical and electronic-structure properties of semiconductors, hardness of crystals, etc. IM2ODE can easily predict the atomic configurations with desired properties for three dimensional structure, interface and cluster, even complex defect in solid.
The molecular scale is characterized by the mean free path between molecular collisions, the microscale by the smallest scale at which the law of continuum mechanics apply, the macroscale by the smallest scale at which a set of averaged properties of concern can be defined and the megascale by the length scale corresponding to the domain of interest [20, 21].
The molecular scale is characterized by the mean free path between molecular collisions, the microscale by the smallest scale at which the law of continuum mechanics applies, the macroscale by the smallest scale at which a set of averaged properties of concern can be defined, and the systemscale by the length scale corresponding to the domain of interest.
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