Studies suggest that exposure to potential endocrine disrupting chemicals (pEDCs) may contribute to adverse health outcomes, but pEDC exposures among firefighters have not been fully characterized. Previously, we demonstrated the military-style silicone dog tag as a personal passive sampling device for assessing polycyclic aromatic hydrocarbon exposures among structural firefighters. This follow-up analysis examined the pEDC exposures based on department call volume, duty shift, and questionnaire variables. Structural firefighters (n = 56) were from one high and one low fire call volume department (Kansas City, MO metropolitan area) and wore separate dog tags while on- and off-duty (n_dogtags = 110). The targeted 1530 analyte semi-quantitative screening method was conducted using gas chromatography mass spectrometry (n_pEDCs = 433). A total of 47 pEDCs were detected, and several less-frequently-detected pEDCs (<75%) were more commonly detected in off- compared to on-duty dog tags (conditional logistic regression). Of the 11 phthalates and fragrances detected most frequently (>75%), off-duty pEDC concentrations were strongly correlated (r = 0.31–0.82, p < 0.05), suggesting co-applications of phthalates and fragrances in consumer products. Questionnaire variables of “regular use of conventional cleaning products” and “fireplace in the home” were associated with select elevated pEDC concentrations by duty shift (paired t-test). This suggested researchers should include detailed questions about consumer product use and home environment when examining personal pEDC exposures.

研究表明，暴露于潜在的内分泌干扰化学品 (pEDC) 可能会导致不利的健康结果，但消防员中的 pEDC 暴露尚未得到充分表征。此前，我们展示了军用型硅胶狗牌作为个人被动采样设备，用于评估结构消防员的多环芳烃暴露情况。该后续分析根据部门呼叫量、工作班次和问卷变量检查了 pEDC 暴露情况。结构性消防员 (n = 56) 来自一个高和一个低火警呼叫量部门（堪萨斯城，密苏里州大都市区），在上班和下班时佩戴单独的狗牌（n 个_狗牌 = 110)。使用气相色谱质谱法 (n _pEDCs  = 433) 进行靶向 1530 分析物半定量筛选方法。总共检测到 47 个 pEDC，与值班狗牌相比，在下班时更常检测到几个不常检测到的 pEDC (<75%)（条件逻辑回归）。在最常检测到的 11 种邻苯二甲酸盐和香料中（>75%），下班 pEDC 浓度密切相关（r = 0.31-0.82，p < 0.05），表明邻苯二甲酸盐和香料在消费品中的共同应用。“定期使用传统清洁产品”和“家中壁炉”的问卷变量与工作班次选择的 pEDC 浓度升高相关（配对t-测试）。这建议研究人员在检查个人 pEDC 暴露时应包括有关消费品使用和家庭环境的详细问题。