Nitrogen dioxide exposure, health outcomes, and associated demographic disparities due to gas and propane combustion by US stoves

Gas and propane stoves emit nitrogen dioxide (NO2) pollution indoors, but the exposures of different U.S. demographic groups are unknown. We estimate NO2 exposure and health consequences using emissions and concentration measurements from >100 homes, a room-specific indoor air quality model, epidemiological risk parameters, and statistical sampling of published housing characteristics and occupant behavior. Gas and propane stoves increase long-term NO2 exposure by an estimated 4.0 ppbv on average across the United States, 75% of the World Health Organization (WHO)’s exposure guideline. This increased exposure may cause approximately 50 thousand cases of current pediatric asthma from long-term NO2 exposure alone. Short-term NO2 exposure from typical gas stove use frequently exceeds both World Health Organization and U.S. EPA benchmarks. Residents of residences <800 ft2 in size incur 4 times more long-term NO2 exposure than residents of residences >3000 ft2 in size; American Indi..., , , # Code Documentation for “Nitrogen dioxide exposure, health outcomes, and associated demographic disparities due to gas and propane combustion by US stoves”

This document describes how to re-create the analysis in the manuscript “Nitrogen dioxide exposure, health outcomes, and associated demographic disparities due to gas and propane combustion by US stoves.”

## **Folder Architecture and Description**

Unless column headers are explained elsewhere, every folder containing .csv files also contains a .txt file explaining every column header of each .csv in the folder in question. This .txt file is titled “Column_names.”

```
|––_DICTS: Python dictionaries containing measured CH4, CO2, NO, and NO2 emission rates, as well as emission factors (normalized by J of gas burned). See CONTAM_SCALEUP.ipynb for more information.
|––_TABLES:
|     |–– df_nox_all_long_timecourse_py.csv: Dataframe containing measured NO, NO2, and NOx concentrations during long timecourse measurements
|     |–– df_nox...