[ES_JOBS_NET] Emission, Fate, and Transport of Emerging Contaminants in Indoor Environment, US EPA, NC

[Christine Wiedinmyer]

https://cfpub.epa.gov/ordpd/PostDoc_Position.cfm?pos_id=1118

 


Emission, Fate, and Transport of Emerging Contaminants in Indoor Environment


Project number:

AEMD-04-03-2019-05


Lab/Center/Office:

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY


Division:

Air and Energy Management Division


Branch:

Distributed Source and Buildings Branch


 


Brief description of research project:

Emerging contaminants, such as per- and polyfluoroalkyl substances (PFAS),
flame retardants, and polychlorinated biphenyl (PCBs) with low volatilities,
are released from a vast number of building materials and consumer products.
The presence of indoor sources for certain PFAS can cause indoor air
concentrations to be higher than outdoor air concentrations. It is
hypothesized consumer products and building materials contribute to human
exposure of PFAS either directly (e.g. hand-to-mouth transfer) or indirectly
(e.g. inhalation of suspended particles). Particulate matter, either
suspended or settled, and inhalation exposure to suspended contaminated
particles from semi volatile organic chemicals (SVOCs) also plays an
important role in human exposure. Better understanding the transport
mechanisms of these emerging contaminants between sources, air, airborne
particles, house dust, and interior surfaces in the indoor environment is
essential to estimating indoor exposure and developing strategies that
enlighten risk assessments and policy decisions to minimize exposures and
protect human health. This project is to develop methods and generate
exposure-related data for emerging contaminants in articles including
consumer products and building materials. The research effort will include
(1) developing air sampling and analytical methods for emerging
contaminants, e.g. PFAS, in the indoor environment; (2) developing methods
and indoor exposure testing protocols, include but not limited to the
particle formation, source-to-dust transfer, and contaminants interaction
with airborne particles and settled dust; and (3) investigating the fate and
transport mechanisms, collect data, and provide input parameters that will
be used to inform and refine estimates of human exposures to consumer
products and building materials.


Geographical location of position:

Research Triangle Park, NC


High priority research areas:

Chemical Safety for Sustainability (CSS) (Rapid Exposure and Dosimetry);
ExpoCast; Air and Energy Research Program Topics 1, 2, 3 


Scientific project area:

CSS Rapid Exposure and Dosimetry Project


Educational requirements:

Doctorate degree in a science, technology, engineering, or mathematics
related discipline. Applicants should have basic knowledge of environmental
science or engineering, environmental monitoring, analytical chemistry, and
indoor air quality.


Specialized training and/or experience preferred:

Preferred candidate will possess basic knowledge of environmental science or
engineering, environmental monitoring, analytical chemistry, and indoor air
quality. Preferred hands-on experience in chamber testing, LC/MS/MS, GC/MS,
MatLab software and skill of environmental modeling and numerical
computation.


Projected duration of appointment:

3 years


Paid relocation to EPA work location:

Yes


Application Period Open Date:

Apr 03, 2019


Application Period Close Date:

May 02, 2019


Scientific contact/Principal Investigator(s)*:

Xiaoyu Liu, Liu.xiaoyu at epa.gov <mailto:Liu.xiaoyu at epa.gov> , (919) 541-2459

 

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