Environmental Odour Monitoring at Receptors by means of an IOMS: Assessment of the Odour of a Paper Mill

Instrumental Odour Monitoring Systems (IOMS) are more and more frequently applied for monitoring odours directly where their presence is complained. They analyse in real-time the ambient air to detect odour presence and determine their provenance. This paper describes the monitoring of paper mill odour emissions by two IOMS located at two receptors, where residents frequently report the occurrence of odour events. It describes the protocol involved for plant odour sources characterization, IOMS training and validation. The monitoring, lasting 4 months, allowed assessing the odour impact at receptors, expressed as the detection frequency of plant odours, and identifying critical emissions deserving maintenance interventions or upgrading.