Despite its importance, air sampling faces several challenges:
1. Variability in Air Quality: Airborne contaminants can vary in concentration due to factors like weather conditions, time of day, and human activities. 2. Sample Contamination: Ensuring that samples are not contaminated during collection, transportation, and analysis is crucial. 3. Detection Limits: Some contaminants are present in very low concentrations, making them difficult to detect. 4. Cost and Resources: High-quality air sampling and analysis can be resource-intensive and costly.
