Sources of personal PM_2.5 exposure during pregnancy in the MADRES cohort.

ABSTRACT:

Background

Personal exposure to fine particulate matter (PM_2.5) is impacted by different sources each with different chemical composition. Determining these sources is important for reducing personal exposure and its health risks especially during pregnancy.

Objective

Identify main sources and their contributions to the personal PM_2.5 exposure in 213 women in the 3rd trimester of pregnancy in Los Angeles, CA.

Methods

We measured 48-hr integrated personal PM_2.5 exposure and analyzed filters for PM_2.5 mass, elemental composition, and optical carbon fractions. We used the EPA Positive Matrix Factorization (PMF) model to resolve and quantify the major sources of personal PM_2.5 exposure. We then investigated bivariate

SUBMITTER: Xu Y 

PROVIDER: S-EPMC11446843 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature