Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas

Population groups vulnerable to adverse effects of traffic-related air pollution correspond to children, pregnant women and elderly. Despite these effects, literature is limited in terms of studies focusing on these groups and a reason often cited is the limited information on their mobility importa...

Full description

Bibliographic Details
Main Authors: Mohammad Hashem Askariyeh, Suriya Vallamsundar, Josias Zietsman, Tara Ramani
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:International Journal of Environmental Research and Public Health
Subjects:
GPS
Online Access:https://www.mdpi.com/1660-4601/16/13/2433
id doaj-2e18eda99b064bd18ad4f51945b264c0
record_format Article
spelling doaj-2e18eda99b064bd18ad4f51945b264c02020-11-24T21:49:52ZengMDPI AGInternational Journal of Environmental Research and Public Health1660-46012019-07-011613243310.3390/ijerph16132433ijerph16132433Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South TexasMohammad Hashem Askariyeh0Suriya Vallamsundar1Josias Zietsman2Tara Ramani3Environment and Air Quality Division, Texas A&amp;M Transportation Institute, 1111 RELLIS Parkway, Suite 3401, Bryan, TX 77807, USACenter for Advancing Research in Transportation Emissions, Energy and Health, Texas A&amp;M Transportation Institute, 12700 Park Central Dr, Suite 1000, Dallas TX 75251, USACenter for Advancing Research in Transportation Emissions, Energy and Health, Texas A&amp;M Transportation Institute, 1111 RELLIS Parkway, Suite 3401, Bryan, TX 77807, USACenter for Advancing Research in Transportation Emissions, Energy and Health, Texas A&amp;M Transportation Institute, 1111 RELLIS Parkway, Suite 3401, Bryan, TX 77807, USAPopulation groups vulnerable to adverse effects of traffic-related air pollution correspond to children, pregnant women and elderly. Despite these effects, literature is limited in terms of studies focusing on these groups and a reason often cited is the limited information on their mobility important for exposure assessment. The current study presents a method for assessing individual-level exposure to traffic-related air pollution by integrating mobility patterns tracked by global positioning system (GPS) devices with dynamics of air pollutant concentrations. The study is based on a pool of 17 pregnant women residing in Hidalgo County, Texas. The traffic-related particulate matter with diameter of less than 2.5 micrometer (PM<sub>2.5</sub>) emissions and air pollutant concentrations are predicted using MOVES and AERMOD models, respectively. The daily average traffic-related PM<sub>2.5</sub> concentration was found to be 0.32 &#181;g/m<sup>3</sup>, with the highest concentration observed in transit (0.56 &#181;g/m<sup>3</sup>), followed by indoors (0.29 &#181;g/m<sup>3</sup>), and outdoor (0.26 &#181;g/m<sup>3</sup>) microenvironment. The obtained exposure levels exhibited considerable variation between time periods, with higher levels during peak commuting periods, close to the US&#8722;Mexico border region and lower levels observed during midday periods. The study also assessed if there is any difference between traffic-related dynamic exposure, based on time-varying mobility patterns, and static exposure, based solely on residential locations, and found a difference of 9%, which could be attributed to the participants&#8217; activity patterns being focused mostly indoors.https://www.mdpi.com/1660-4601/16/13/2433dynamic exposurevehicle emissionsair pollutionpregnant womenGPSdispersion methodparticulate matter PM<sub>2.5</sub>
collection DOAJ
language English
format Article
sources DOAJ
author Mohammad Hashem Askariyeh
Suriya Vallamsundar
Josias Zietsman
Tara Ramani
spellingShingle Mohammad Hashem Askariyeh
Suriya Vallamsundar
Josias Zietsman
Tara Ramani
Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
International Journal of Environmental Research and Public Health
dynamic exposure
vehicle emissions
air pollution
pregnant women
GPS
dispersion method
particulate matter PM<sub>2.5</sub>
author_facet Mohammad Hashem Askariyeh
Suriya Vallamsundar
Josias Zietsman
Tara Ramani
author_sort Mohammad Hashem Askariyeh
title Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
title_short Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
title_full Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
title_fullStr Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
title_full_unstemmed Assessment of Traffic-Related Air Pollution: Case Study of Pregnant Women in South Texas
title_sort assessment of traffic-related air pollution: case study of pregnant women in south texas
publisher MDPI AG
series International Journal of Environmental Research and Public Health
issn 1660-4601
publishDate 2019-07-01
description Population groups vulnerable to adverse effects of traffic-related air pollution correspond to children, pregnant women and elderly. Despite these effects, literature is limited in terms of studies focusing on these groups and a reason often cited is the limited information on their mobility important for exposure assessment. The current study presents a method for assessing individual-level exposure to traffic-related air pollution by integrating mobility patterns tracked by global positioning system (GPS) devices with dynamics of air pollutant concentrations. The study is based on a pool of 17 pregnant women residing in Hidalgo County, Texas. The traffic-related particulate matter with diameter of less than 2.5 micrometer (PM<sub>2.5</sub>) emissions and air pollutant concentrations are predicted using MOVES and AERMOD models, respectively. The daily average traffic-related PM<sub>2.5</sub> concentration was found to be 0.32 &#181;g/m<sup>3</sup>, with the highest concentration observed in transit (0.56 &#181;g/m<sup>3</sup>), followed by indoors (0.29 &#181;g/m<sup>3</sup>), and outdoor (0.26 &#181;g/m<sup>3</sup>) microenvironment. The obtained exposure levels exhibited considerable variation between time periods, with higher levels during peak commuting periods, close to the US&#8722;Mexico border region and lower levels observed during midday periods. The study also assessed if there is any difference between traffic-related dynamic exposure, based on time-varying mobility patterns, and static exposure, based solely on residential locations, and found a difference of 9%, which could be attributed to the participants&#8217; activity patterns being focused mostly indoors.
topic dynamic exposure
vehicle emissions
air pollution
pregnant women
GPS
dispersion method
particulate matter PM<sub>2.5</sub>
url https://www.mdpi.com/1660-4601/16/13/2433
work_keys_str_mv AT mohammadhashemaskariyeh assessmentoftrafficrelatedairpollutioncasestudyofpregnantwomeninsouthtexas
AT suriyavallamsundar assessmentoftrafficrelatedairpollutioncasestudyofpregnantwomeninsouthtexas
AT josiaszietsman assessmentoftrafficrelatedairpollutioncasestudyofpregnantwomeninsouthtexas
AT tararamani assessmentoftrafficrelatedairpollutioncasestudyofpregnantwomeninsouthtexas
_version_ 1725886968855789568