TY - JOUR
T1 - Maternal exposure to PM2.5 in south Texas, a pilot study
AU - Levy Zamora, Misti
AU - Pulczinski, Jairus C.
AU - Johnson, Natalie
AU - Garcia-Hernandez, Rosa
AU - Rule, Ana
AU - Carrillo, Genny
AU - Zietsman, Josias
AU - Sandragorsian, Brenda
AU - Vallamsundar, Suriya
AU - Askariyeh, Mohammad H.
AU - Koehler, Kirsten
N1 - Funding Information:
This research was supported by a seed grant from the Texas A&M Transportation Institute and the Texas A&M Health Science Center . J. Pulczinski was also supported by a Texas A&M One Health Initiative Summer Research Program. R. Garcia-Hernandez was supported by the Johns Hopkins University Pulmonary and Critical Care Medicine Summer Internship Program and the SIP grant (NIH HL084762). The authors would like to thank Catherine Hess for her contribution to the exposure monitoring. N. Johnson would like to acknowledge the Community Health Workers at Texas A&M University Colonias Program for their contribution to the project. M. Levy Zamora would like to acknowledge the Johns Hopkins Institute for Clinical and Translational Research (Grant Number UL1TR001079) for the contribution to the statistical analysis and Andrew Patton for his contribution to the TxDOT analysis.
Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2018/7/1
Y1 - 2018/7/1
N2 - In this study, we characterized personal exposure to fine particulate matter (PM2.5), black carbon (BC), and nicotine in pregnant women in Hidalgo County, where the hospitalization rates of childhood asthma are the highest in the state of Texas. The measurements were conducted over three non-consecutive sampling days for 17 participants in their third trimester. Measurements were partitioned into four microenvironments, i.e., Residential, Vehicular, Commercial, and Other, on the basis of GPS coordinates and temperature and humidity measurements. The daily average PM2.5 mass concentration was 24.2 (standard deviation = 22.0) μg/m3, with the highest daily mass concentration reaching 126.0 μg/m3. The daily average BC concentration was 1.44 (SD = 0.82) μg/m3, ranging from 0.5 to 5.4 μg/m3. Hair nicotine concentrations were all near the detection level (i.e., 49.2 pg/mg), indicating that the participants were not routinely exposed to tobacco smoke. The Residential microenvironment contributed dominantly to the mass concentration since the participants chiefly remained at home and cooking activities contributed significantly to the total PM2.5. When compared to an ambient monitoring station, the person-specific PM2.5 was frequently more than double the ambient measurement (10.4 μg/m3 overall), revealing that even in regions where ambient concentrations are below national standards, individuals may be still be exposed to elevated PM2.5 mass concentrations.
AB - In this study, we characterized personal exposure to fine particulate matter (PM2.5), black carbon (BC), and nicotine in pregnant women in Hidalgo County, where the hospitalization rates of childhood asthma are the highest in the state of Texas. The measurements were conducted over three non-consecutive sampling days for 17 participants in their third trimester. Measurements were partitioned into four microenvironments, i.e., Residential, Vehicular, Commercial, and Other, on the basis of GPS coordinates and temperature and humidity measurements. The daily average PM2.5 mass concentration was 24.2 (standard deviation = 22.0) μg/m3, with the highest daily mass concentration reaching 126.0 μg/m3. The daily average BC concentration was 1.44 (SD = 0.82) μg/m3, ranging from 0.5 to 5.4 μg/m3. Hair nicotine concentrations were all near the detection level (i.e., 49.2 pg/mg), indicating that the participants were not routinely exposed to tobacco smoke. The Residential microenvironment contributed dominantly to the mass concentration since the participants chiefly remained at home and cooking activities contributed significantly to the total PM2.5. When compared to an ambient monitoring station, the person-specific PM2.5 was frequently more than double the ambient measurement (10.4 μg/m3 overall), revealing that even in regions where ambient concentrations are below national standards, individuals may be still be exposed to elevated PM2.5 mass concentrations.
KW - Air pollution
KW - Black carbon
KW - Indoor air pollution
KW - Microenvironments
KW - Nicotine
KW - PM
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U2 - 10.1016/j.scitotenv.2018.02.138
DO - 10.1016/j.scitotenv.2018.02.138
M3 - Article
C2 - 30045568
AN - SCOPUS:85042214122
SN - 0048-9697
VL - 628-629
SP - 1497
EP - 1507
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -