The phrase "acceptable concentration" is correct and usable in written English.
It can be used in contexts related to science, health, or safety, where a specific level of concentration is deemed suitable or permissible.
Example: "The laboratory results indicated that the acceptable concentration of the chemical in the solution was within safe limits."
Alternatives: "permissible level" or "tolerable concentration".
Both reactive barriers treated the impacted groundwater to acceptable concentration levels while decreasing the net acidity within the groundwater.
Only six wells contained pesticide residues above the interim maximum acceptable concentration (IMAC), but pesticides were detected in 7% of wells in winter and in 11% in summer.
For both scenarios, we show that the predicted acceptable concentration levels are associated with large uncertainty and discuss the implications this has for defining quality standards and how the uncertainty can be reduced.
Moreover, some environmental concentrations of azoxystrobin found in the present review are above the Regulatory Acceptable Concentration (RAC) in what concerns risk to aquatic invertebrates and the No Observed Ecologically Adverse Effect Concentration (NOEAEC) reported for freshwater communities.
Decisions are made by comparing a regulatory acceptable concentration (=RAC) level or curve (i.e., endpoint of the effect assessment) with predicted environmental concentration (=PEC) levels or curves (endpoint of the exposure assessment).
The QRA is conducted as a backward calculation starting from a pre-defined acceptable risk level at the receptor point (defined as an annual infection risk of 10−4 for pathogens and by reference doses (RfD) for chemical hazards) and results in an estimate of the corresponding acceptable concentration levels of the given hazards in the effluent.
The F.D.A. does not specify maximum acceptable concentrations or daily dose limits for contaminants in dietary supplements.
For toxic elements such as arsenic, cadmium, mercury and lead, further legislation regarding acceptable concentrations in foods are regulated by EU directive 2002/32/EC.
An SSD may be used to estimate the maximum acceptable concentrations of ENMs for the purpose of environmental risk assessment.
They are regulated primarily by establishing ambient air quality standards, which are maximum acceptable concentrations of each criteria pollutant in the atmosphere, regardless of its origin.
Regulatory or project-specific criteria (acceptable concentrations of priority OWCs) would enable assessment of ecosystem impacts and demonstration of practitioner compliance.
