The phrase "are excessive levels of" is correct and usable in written English.
It can be used when discussing quantities or concentrations that are considered too high in a particular context, such as health, environmental issues, or quality control.
Example: "The recent study revealed that there are excessive levels of pollutants in the river, posing a threat to local wildlife."
Alternatives: "are high concentrations of" or "are elevated amounts of".
Oxidant stress is considered present when there is either an overproduction of free radicals or a significant diminution in antioxidant defenses, the result of either being excessive levels of free radicals [ 29, 31].
The QuickDASH-Sp was also completed by all participants but there were excessive levels of missing responses that unfortunately rendered the data not useable for analysis and reporting in this study.
Another hormone implicated in the development of prostate cancer is excessive levels of insulin growth-like factor 1 (IGF-1).[5].
Lipid metabolic disorder refers to a disruption in lipid metabolism in which there are excessive serum levels of lipids and lipoprotein lipids.
To determine whether origin-independent replication is simply because we are using excessive levels of ORC, we performed an ORC titration during the pre-RC assembly step (Fig 7C).
Teikoku Data Bank, which compiles corporate credit data, estimates that more than 7 in 10 third-sector leisure companies are carrying excessive levels of debt; of the 30 theme parks it studied, 16 were technically insolvent.
University lecturers are facing excessive levels of stress because of their workloads, the Huffington Post reports.
Thus, the hypothesis at work was that excessive levels of corticosterone throughout the life of the animal would favor the emergence of memory deficits (pathological aging) by reducing neurogenesis.
Persons most likely to be exposed to excessive levels of manganese are manganese coal miners and welders.
These abnormalities have been shown to be due to excessive levels of pro-inflammatory factors resulting from defects in ARE-mediated decay in these mice [ 22, 23].
