Ambient Air Monitoring (Fence Line Monitoring)

Ambient air is defined as any air on the external side of a pollution source’s boundary fence to which the public have access. This includes industrial areas neighboring a pollution source. The Ambient Air Quality Limits are derived from the National Environmental Management: Air Quality Act 39 of 2004, SA standards (SANS 1929:2005) and / or other standards / limits, where applicable. The South African Government considers the air quality through dedicated regulations and implementation of norms and standards and through dissemination of knowledge and awareness among the society at large.

The purpose of the monitoring is to:

  • Quantitatively determine the ambient (fence line) pollutant concentrations that could potentially be released from operations occurring on site.
  • Compare monitored concentrations to local and international standards.
  • Compile an Ambient Air Quality Monitoring report and where possible, provide recommendations.

Internationally recognized Radiello™ radial diffusive samplers operate on the principles of controlled chemical absorption using specifically selected media. Samplers are deployed in a weather-resistant housing on the site perimeter fences. The samples are deployed for a period of 7 days, after which they are recovered, sealed, and sent to a SANAS-accredited laboratory for analysis.