Waste combustion involves very heavily regulated emissions control and the application of best available techniques to ensure that emissions remain within clearly stipulated legislative limits. These limits, which were already extremely stringent, have been recently tightened further.
The height of the stack has been specifically calculated to ensure that emissions are sufficiently dispersed such that their effects can be categorised as negligible for all pollutants, in all locations, over all time periods.
Emissions are monitored 24 days a day and the data is submitted to the Environment Agency and is publicly available.