What can be inferred from low PECQ values across multiple assessments?

Low PECQ values indicate that the concentration of a substance in the environment is well below levels that could potentially cause harm to ecological systems. This suggests a lower likelihood of ecological damage, as the organisms exposed to these concentrations are less likely to experience significant adverse effects.

In terms of regulatory actions, if PECQ values consistently indicate that concentrations are low and unlikely to harm ecosystems, it implies that there may not be a pressing need for immediate regulatory intervention. Consequently, either maintaining the current management practices or allowing for a more lenient regulatory framework may be appropriate.

Thus, options regarding both the low likelihood of ecological harm and the potential unnecessity for regulatory actions underscore an overarching interpretation that aligns with low PECQ values. Therefore, recognizing both these implications together offers a more comprehensive understanding of the situation.