Definition – In the context of SUMP, a threshold
is the maximum or minimum value of an indicator which should not be exceeded. For example, where a public authority defines an air quality indicator and a target for the reduction of air pollution, it may also set a threshold for the maximum level of air pollutants that are acceptable.
Relevance to SUMP – Setting thresholds is relevant to the process of SUMP monitoring and evaluation and allows authorities to set maximum or minimum acceptable levels in relation to specific indicators.