pfas-birthweight 0.1.5

Build a county-year panel dataset linking PFAS drinking water contamination to birth weight outcomes.

pfas-birthweight

A Python package for building a county-year panel dataset linking PFAS contamination in drinking water to birth weight outcomes.

All data is bundled with the package — no external downloads needed.

Installation

pip install pfas-birthweight

Usage

from pfas_birthweight import build_pfas_birthweight_panel

panel = build_pfas_birthweight_panel()

This returns a pandas DataFrame with the following columns:

Column	Description
FIPS	5-digit county FIPS code
STATE	2-letter state abbreviation
COUNTY_SERVED	County name
year	Year (2016–2024)
births	Number of births
avg_birth_weight	Average birth weight (grams)
PFAS_county	Population-weighted mean PFAS concentration (ng/L)

Individual Functions

from pfas_birthweight import (
    load_pfas,
    collapse_pfas_to_pws,
    load_geo,
    build_county_pfas,
    load_crosswalk,
    attach_fips_to_pfas,
    load_birth_weights,
    build_panel,
)

Data Sources

• EPA UCMR PFAS monitoring data
• EPA SDWA Geographic Areas
• Census national county FIPS crosswalk
• CDC WONDER birth weight data (2016–2024)