What is the purpose of setting allowable levels for air and noise in the EIA framework?

• A. To justify higher project costs.
• B. To define acceptable exposure and guide mitigation.
• C. To delay compliance.
• D. To determine project location.

Answer: (B)

Setting allowable levels for air and noise in the EIA framework provides the thresholds that define what counts as an acceptable environmental impact and guides how that impact must be mitigated. These levels translate into concrete limits on emissions and ambient noise, serving as benchmarks for impact assessment, design decisions, and ongoing monitoring to ensure compliance. This helps determine what mitigation measures are needed and when a project may be approved or conditioned. They are not simply about increasing costs, delaying compliance, or choosing where a project goes, but about keeping exposure within safe limits and driving appropriate actions to reduce environmental effects.