Sentence examples for are persistent in the environment from inspiring English sources

Large t1/2 values for the PCBs imply that they are persistent in the environment [45].

In summary, the available information from different sources implicates that the phenolic benzotriazoles under consideration are persistent in the environment.

Taking these problems together, it is clear that the possibility exists that some chemicals which are persistent in the environment will not be identified as persistent and vice versa.

Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a class of organic compounds that are persistent in the environment due to their stable carbon-fluorine backbone, which is not susceptible to degradation.

Like PCBs, these agents are persistent in the environment.

Dioxins are persistent in the environment and resistant to biodegradation.

But because the compounds were persistent in the environment and in human blood, the company said it alerted regulators and began working to come up with alternative compounds.

According to the EPA, HBCD is persistent in the environment and bioaccumulates in living organisms; it is "highly toxic to aquatic organisms" and also presents human health concerns based on animal test results indicating potential reproductive, developmental and neurological effects.

The E.P.A. said its decision to press 3M rested on four concerns: the compound is persistent in the environment; it appears in wildlife and human tissue around the world; it appears in human blood samples taken from around the world; and, based on the study of laboratory rats, it has the potential to harm humans.

PFOA is persistent in the environment, ubiquitous present in surface waters, and subject to long-range transport.

Objectives: Dichlorodiphenyl dichloroethene (DDE) and polychlorinated biphenyls (PCB), toxic contaminants known to be persistent in the environment, may affect growth.