In a fact, it was a most exciting game of an year.
A.
正确
B.
错误
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举一反三
【多选题】Which of the following statements about the relationships between exposure routes of nanoparticles and their health risks are correct?
A.
Exposures to nanomaterials may occur through inhalation, dermal contact, accidental injection, & ingestion, the risk increases with duration of exposure & the concentrations of nanoparticles in the sample or air.
B.
Inhalation presents the lowest exposure hazard.
C.
Nanomaterials suspended in a solution or slurry pose a lesser hazard, however, sonication, shaking, stirring, pouring, or spraying can result in inhalation exposure.
D.
Nanoparticles that are fixed within a matrix pose the least hazard as long as no mechanical disruption, such as grinding, cutting, or burning, occurs.