Updated 2020 data for EPA_AirPollutantEmission_Level1

scripts/us_epa/national_emissions_inventory/README.md

@@ -0,0 +1,57 @@
+# US-EPA: National Air Pollutant Emissions Data
+
+## About the Dataset
+This dataset has Air Pollution Emission data for the County and Tribal geographic levels in the United States for the years 2008 to 2017.
+
+
+### Download URL
+The data in zip formats are downloadable from https://www.epa.gov/air-emissions-inventories/national-emissions-inventory-nei.
+The actual URLs are listed in download_config.py.
+
+
+### API Output
+These are the attributes that we will use
+| Attribute      				| Description                                               |
+|-------------------------------|-----------------------------------------------------------|
+| dataset       					| The Year of the emission estimates provided. 				|
+| fips code     					| The Area of the emission estimates provided. 				|
+| scc   	        | Source from where the pollution is emitted.               |
+| pollutant code   				    | The Gas generated which pollutes the Air. 			    |
+| pollutant type(s)   				    | The type of Gas generated which pollutes the Air. 			    |
+
+### Cleaned Data
+Cleaned data will be inside [output/national_emissions.csv] as a CSV file with the following columns.
+
+- year
+- geo_Id
+- SV
+- Measurement_Method
+- observation
+- unit
+
+
+### MCFs and Template MCFs
+- [output/national_emissions.mcf]
+- [output/national_emissions.tmcf]
+
+
+### Running Tests
+
+Run the test cases
+
+`run_tests.sh -p scripts/us_epa/national_emissions_inventory`
+
+
+### Import Procedure
+
+The below script will download the data.
+
+point - `python3 download_input_files.py point`
+nonpoint - `python3 download_input_files.py nonpoint`
+onroad - `python3 download_input_files.py onroad`
+nonroad(default) - `python3 download_input_files.py nonroad`
+all - `python3 download_input_files_all.py`
+
+The below script will clean the data, Also generate final csv, mcf and tmcf files.
+
+`python3 process.py`