Inventory Methods

Inventory methods are summations of inventory items, meant to easily capture the total quantity of a group of emissions or resources in a life cycle inventory. Inventory methods in lciafmt are generated in standard format.

Available methods

Inventory methods are created in the Federal LCA Commons Elementary Flow List in subset_list.py where the logic for each group of inventory items is compiled.

• Freshwater consumption
• Total water consumption
• Land use
• Mineral resource use (source: USGS)
• Primary energy use
• Renewable energy use
• Nonrenewable energy use
• Hazardous air pollutant emissions (source: EPA)
• Pesticide emissions (source: USDA Chemical Use Survey)

Accessing inventory methods

One or more inventory methods can be accessed in lciafmt:

import lciafmt
inventory_methods = lciafmt.get_method(method_id = 'FEDEFL Inventory') # Returns all available methods
selected_subsets = ['land_use']
inventory_method = lciafmt.get_mapped_method(method_id = 'FEDEFL Inventory', indicators = selected_subsets)

To see available dictionary keys which can be used as selected_subsets:

import fedelemflowlist.subset_list as fedefl_inv
fedefl_inv.get_subsets()