20250407 12304100 1.0 TRUE 150000000 5000 FGDC community level heavy duty vehicle PM2.5 emission at 2022 This dataset integrates big-data activity information with CARB’s on-road emissions inventory model, EMFAC, and focuses on heavy-duty vehicle PM2.5 emission at community level for calendar year 2022. <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The purpose of this community-level emission inventory is to quantify and map air pollutant emissions at a community scale so we can identify where emissions are concentrated, understand the heavy duty activities that drive those emissions, and support more targeted, effective strategies to reduce exposure, especially in communities that experience disproportionate air-quality burdens. The inventory is designed to support equity-focused analyses and provide transparent, accessible information to the public.</SPAN></P></DIV></DIV></DIV> <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>None</SPAN></P></DIV></DIV></DIV> 20251215 Yucheng He California Air Resources Board 4001 Iowa Ave. Riverside CA 92507 US 9512367817