.. _API_Emission:

API Emission
============

The *API Emission* provides a set of tools where the user can calculate the load of certain APIs at different WWTPs, transfer it to the river network,
calculate the concentration and perform the risk assessment in each river section within a catchment. 

This group of tools is divided in 4 different processes:

.. toctree::
  :maxdepth: 1

  API_param_selection
  Emission_Load
  Accumulation
  Risk_assessment

Each tool is documented in the following sections with explanations of its functionality and step-by-step tutorials.