Participant perspectives related to individual chemical exposure report-back approaches in three environmental health studies.

Returning results to participants of environmental exposure studies has become more common in recent years. Despite evidence of benefits for study participants, there are challenges in communicating results to people with limited resources or capacity to mitigate chemical exposures. We interviewed N = 54 participants and compared exposure report-back conducted in 2010-2013 across three susceptible study populations: 1) low-income pregnant individuals in the Chemicals in Our Bodies (CIOB) study; 2) the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS) cohort; and 3) early childhood educators (ECE).

The East Bay Diesel Exposure Project: a biomonitoring study of parents and their children in heavily impacted communities.

Background: Diesel exhaust (DE) exposures pose concerns for serious health effects, including asthma and lung cancer, in California communities burdened by multiple stressors.

Objective: To evaluate DE exposures in disproportionately impacted communities using biomonitoring and compare results for adults and children within and between families.

Methods: We recruited 40 families in the San Francisco East Bay area.

Biomonitoring California Protocol for Following up on Elevated Levels of Urinary Arsenic.

Objectives: to develop and implement a follow-up protocol for Biomonitoring California study participants with elevated levels of urinary arsenic, particularly inorganic forms.

Methods: We selected 20 μg/L as the level of concern for urinary arsenic; samples with arsenic ≥20 μg/L were speciated. Participants with elevated inorganic arsenic were notified of their level and invited to participate in a telephone survey to help determine possible exposure sources.