Improved and Enhanced Version of SCAIL-Agriculture launched.

Simple Calculation of Ammonia Impact Limits (SCAIL) is a freely available online screening tool to estimate the effect of agricultural emissions on nearby protected areas (e.g. Sites of Special Scientific Interest) or human health.

The updated tool has been developed to evaluate the following emissions:

  • Impact of NH3 emissions on protected sites;
  • Impact of PM10 emissions on human health; and, 
  • Impact of odour emissions on nearby receptors.

The outputs from the tool will help the tool’s primary users (environmental regulators, planners, farmers, conservation bodies) make decisions on site development or permit application and the need for abatement measures or to identify whether further, more complex dispersion and deposition modelling is needed. 

This project was commissioned by the UK environmental regulatory authorities and the Irish.  Further information and the project report is available from Sniffer.


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