Professional Career

Senior Director, Building Sciences, Well Living Lab                                                              2019-Present

Research Affiliate, Mayo Clinic                                                                                                 2016-Present

Research Contractor, Well Living Lab                                                                                      2017-2019

Director, Delos Labs, Well Living Lab                                                                                        2016-2017

Postdoctoral Research Assistant, Mech. Engineering, University of Colorado Boulder                  2014-2015

Graduate Research Assistant, Mech. Engineering, University of Colorado Boulder                   2008-2013

Undergraduate Research Assistant, Mech. Engineering, University of Colorado Boulder           2007-2008

Intern/Field Technician, Tetra Tech Inc.                                                                                                        2006

Education

PhD. Mech. Engineering, University of Colorado Boulder 2013

M.S. Mech. Engineering, University of Colorado Boulder 2010

B.S. Mech. Engineering, University of Colorado Boulder 2009

Research Experience

Well Living Lab: Helped finalize build out of living lab facility and implementation of first research project, ALTCO. Manage sensors and building systems, and lead in SOP development for sensor calibration and comparison studies. Built out air quality, temperature, lighting, and other sensor systems. Perform data analysis on environmental data sets. Lead and support human subject research investigations.

Isolation Ward Engineering Design and Evaluation: Designed and demonstrated the feasibility of establishing a temporary isolation ward at a functioning hospital to house a surge of patients during a pandemic of an airborne disease (2014-present).

Indoor Air Quality Analysis: Analyzed the seasonal variability of indoor air pollution in fifteen Colorado homes and the relationship between air pollution, inhabitant activities, and building characteristics (2014-present).

Bioaerosols and Microbiomes: (1) Measured the seasonal variability of microbial communities in fifteen Colorado homes. (2) Assessed the impact of flooding on indoor microbial communities after home remediation. (3) Compared ambient airborne microbial community structure in urban and rural communities of Colorado (2013-present).

Long-Term Ambient Particulate Matter Monitoring and Data Analysis: Conducted a three-year measurement campaign at four monitoring sites to understand spatiotemporal variability and the impact of meteorological conditions on coarse and fine particulate matter in urban (Denver) and rural (Greeley) communities in Colorado (2009-2013).

Particulate Matter Composition and Source Apportionment: Collected filter samples for a year to assess particulate matter composition, including: elemental carbon, organic carbon, water-soluble organic carbon, elements, endotoxin, bacterial communities, UV-vis absorbance, and fluorescence. Statistical models were used to identify sources using elemental concentrations and bacteria community data (2009-2013).

UV-C Disinfection Device Design: Evaluated the performance of a small UV-C disinfection device using three light sources (mercury, xenon excimer, and LED; 2007-2008).

Research Publications (peer-reviewed)

1.    Senerat, A, Manemann, SM, Clements, NS, Brook, RD, Hassett, LC, Roger, VL (2020). Biomarkers and Indoor Air Quality: A Translational Research Review. Journal of Clinical and Translational Science. De novo resubmission submitted.

2.    Aristizabal, S, Byun, K, Porter, P, Clements, N, Campanella, C, Li, L, Mullan, A, Ly, S, Senerat, A, Nenadic, IZ, Bauer, B (2020). Biophilic Office Design: Exploring the Impact of a Multisensory Approach on Human Well-Being. Environment & Behavior. In Review.

3.    Li, L, Mullan, AF, Clements, N (2020). Exposure to Air Pollution in Indoor Walkways of a Suburban City. Building and Environment. In review.

4.    Clements, N, Binnicker, MJ, Roger, VL (2020). Indoor Environment and Viral Infections. Mayo Clinic Proceedings. In Press.

5.    Dujardin, CE, Mars, RAT, Manemann, SM, Kashyap, PC, Clements, NS, Hassett, LC, Roger, VL (2020). Impact of air quality on the gastrointestinal microbiome: A review. Environmental Research, 186: 109485. https://doi.org/10.1016/j.envres.2020.109485.

6.    Aristizabal, S, Porter, P, Clements, N, Campanella, C, Zhang, R, Hovde, K, Lam, C (2019). Conducting Human-Centered Building Science at the Well Living Lab. Technology | Architecture + Design, 3, 161-173. https://doi.org/10.1080/24751448.2019.1640535.

7.    Jamrozik, A, Clements, N, Hasan, SS, Zhao, J, Zhang, R, Campanella, C, Loftness V, Porter P, Ly, S, Wang, S, Bauer, B (2019). Access to daylight and view in an office improves cognitive performance and satisfaction and reduces eyestrain: A controlled crossover study. Building and Environment, 165, 106379. https://doi.org/10.1016/j.buildenv.2019.106379.

8.    Clements, N, Zhang, R, Jamrozik, A, Campanella, C, Bauer, B (2019). The Spatial and Temporal Variability of the Indoor Environmental Quality during Three Simulated Office Studies at a Living Lab. Buildings, 9(3), 62. https://doi.org/10.3390/buildings9030062.

9.    Clements, N, Keady, P, Emerson, JB, Fierer, N, Miller, SL. Seasonal Variability of Airborne Particles and Bacterial Concentrations in Colorado Homes (2018). Atmosphere, 9(4), 130. https://doi.org/10.3390/atmos9040133.

10.  Jamrozik, A, Ramos C, Zhao J, Bernau J, Clements N, Vetting-Wolf, T, Bauer B (2018). A novel methodology to realistically monitor office occupant reactions and environmental conditions using a living lab. Building and Environment, 130, 190-199. https://doi.org/10.1016/j.buildenv.2017.12.024.

11.  Torpy, F, Clements, N, Pollinger M, Dengel A, Mulvihill I, He C, Irga P (2017). Testing the single-pass VOC removal efficiency of an active green wall using methyl ethyl ketone (MEK). Air Quality, Atmosphere & Health, 1-8. https://doi.org/10.1007/s11869-017-0518-4.

12.  Miller, SL, Clements, N, Elliott, SA, Subhash, SS, Eagan, AE, Radonovich R (2017). Implementing a Negative-Pressure Isolation Ward for a Surge in Airborne-Infectious Patients. American Journal of Infection Control 45(6), 652-659. https://doi.org/10.1016/j.ajic.2017.01.029.

13.  Emerson, JB, Keady, PB, Clements, N, Morgan, EE, Awerbuch, J, Miller, SL, Fierer, N (2016). High temporal variability in airborne bacterial diversity and abundance inside single-family residences. Indoor Air 27(3), 576-586. https://doi.org/10.1111/ina.12347.

14.  Clements, N, Milford, JB, Miller, SL, Peel, JL, Hannigan, MP (2016). Comparisons of Urban and Rural PM10-2.5 and PM2.5 Mass Concentrations and Semi-Volatile Fractions in Northeastern Colorado. Atmospheric Chemistry and Physics, 16(11), 7469-7484. https://doi.org/10.5194/acp-16-7469-2016.

15.  Emerson, JB, Keady, P, Brewer, T, Clements, N, Morgan, E, Awerbuch, J, Miller, SL, Fierer, N (2015). Impacts of flood damage on airborne bacteria and fungi in homes after the 2013 Colorado Front Range Flood. Environmental Science and Technology 49(5), 2675-2684. https://pubs.acs.org/doi/abs/10.1021/es503845j.

16.  Clements, N, Eav, J, Xie, M, Hannigan, MP, Miller, SL, Navidi, W, Peel, JL, Schauer, JJ, Shafer, MM, Milford, JB (2014). Concentrations and source insights for trace elements in fine and coarse particulate matter. Atmospheric Environment 89, 373-381. https://doi.org/10.1016/j.atmosenv.2014.01.011.

17.  Adar, SD, Filigrana, PA, Clements, N, Peel, JL (2014). Ambient Coarse Particulate Matter and Human Health: A Systematic Review and Meta-Analysis. Current Environmental Health Reports 1(3), 258-274. https://doi.org/10.1007/s40572-014-0022-z.

18.  Clements, N, Milford, JB, Miller, SL, Navidi, W, Peel, JL, Hannigan, MP (2013). Errors in coarse particulate matter (PM10-2.5) mass concentrations and spatiotemporal characteristics when using subtraction estimation methods. Journal of the Air & Waste Management Association 63, 1386-1398. https://doi.org/10.1080/10962247.2013.816643.

19.  Bowers, R, Clements, N, Emerson, J, Wiedinmyer, C, Hannigan, M, Fierer, N (2013). Seasonal variability in the bacterial and fungal diversity of the near-surface atmosphere. Environmental Science and Technology 47(21), 12097-12106. https://pubs.acs.org/doi/abs/10.1021/es402970s.

20.  Clements, N, Piedrahita, R, Ortega, J, Peel, JL, Hannigan, M, Miller, SL, Milford, JB (2012). Characterization and Nonparametric Regression of Rural and Urban Coarse Particulate Matter Mass Concentrations in Northeastern Colorado. Aerosol Science and Technology 46(1), 108-123. https://doi.org/10.1080/02786826.2011.607478.

21.  Ryan, K, McCabe, K, Clements, N, Hernandez, M, Miller, SL (2010). Inactivation of Airborne Microorganisms Using Novel Ultraviolet Radiation Sources in Reflective Flow-Through Control Devices. Aerosol Science and Technology 44(7), 541-550. https://doi.org/10.1080/02786821003762411.

Book Chapters (peer-reviewed)

1.    Duhl, TR, Clements, N, Mladenov, N, Cawley, K, Rosario-Ortiz, FL, Hannigan, MP (2014). Natural and Unnatural Organic Matter in the Atmosphere: Recent Perspectives on the High Molecular Weight Fraction of Organic Aerosol. Advances in the Physicochemical Characterization of Dissolved Organic Matter: Impact on Natural and Engineered Systems, Volume 1160, American Chemical Society, pp. 87-111. https://pubs.acs.org/doi/abs/10.1021/bk-2014-1160.ch005.

Other Publications

1.    Clevenger, C, Abdallah, M, Clements, N, Byun, K, Aristizabal, S, Melissa, MR, Raman, J (2019). Exploring the Feasibility of Mapping Physical and Cognitive Characteristics for Construction Workers. ASCE Construction Research Conference 2020, March 2020.

2.    Jamrozik, A, Clements, N (2019). Human Performance and Productivity in Buildings. ASHRAE Journal, June 2019.

3.    Nguyen, J, Huynh, S, Jamrozik, A, Clements, N, Ramos, C, Bauer, B, Zhao, J (2018). Environmental Conditions and Occupant Satisfaction in the Workplace: A Controlled Study in a Living Lab. IBPC 2018.

4.    Hasan, SS, Aristizabal, S, Jamrozik, A, Zhang, R, Campanella, C, Clements, N (2018). Living Labs: Measuring Human Experience in the Built Environment. CHI’18 Extended Abstracts, Montreal, QC, Canada. https://doi.org/10.1145/3170427.3170627.

5.    Clements, N, Marks, F, Weekes, L-C (2018). Potential Microbial Contaminants in Biowall Water and Soil Systems. ASHRAE Environmental Health Committee Emerging Issue Brief.

6.    Clements, N, Miller, SL, Subhash, SS, Eagan, AE (2015). Hospital Surge Capacity: Practical Aspects of Temporary Isolation Ward Design. Proceedings: Healthy Buildings 2015 America.

7.    Clements, N (2013). The CCRUSH Study: Characterization of Coarse and Fine Particulate Matter in Northeastern Colorado (Doctoral dissertation). University of Colorado at Boulder, 319 pages. AAT 3607289.

8.    Clements, N (2014). Temporary Isolation Rooms and their Application to Hospital Surge Capacity for Infection Control. microBEnet: The microbiology of the Built Environment Network. [microbe.net: link].

9.    Miller, S, Clements, N (2014). Flooding and Indoor Air Quality. microBEnet: The microbiology of the Built Environment Network. [microbe.net: link].

Press

1.    The Edifice Complex Podcast #002 – Dr. Nicholas Clements: Behavioral Building Science (2017).

2.    Anthes, E (2016). The Office Experiment: Can Science Build the Perfect Workspace? Nature, 537, 294-296. DOI:10.1038/537294a. Link.

Conference and Invited Speaker Presentations

1.    Clements, N, Jamrozik, A, Hasan, SS, Zhao, J, Zhang, R, Campanella, C, Loftness, V, Porter, P, Ly, S, Wang, S, Bauer, B (2020). Access to Daylight and View Improves Cognitive Performance, Satisfaction with the Environment, and Eyestrain: A Crossover Study in a Simulated Office at a Living Lab. IAQ2020, Athens, Greece. Abstract accepted, conference rescheduled due to COVID-19.

2.    Clements, N, Zhang, R, Jamrozik, A, Campanella, C, Bauer, B (2020). Spatial and Temporal Variability in Indoor Environmental Quality Conditions during Three Simulated Office Studies at a Living Lab. IAQ2020, Athens, Greece. Abstract accepted, conference rescheduled due to COVID-19.

3.    Senerat, AM, Manemann, SM, Clements, NS, Hassett, LC, Roger, VL (2020). Biomarkers Affected by Indoor Air Quality Exposures: A Review. Extended Abstract, International Conference on Environmental Research and Public Health – Addressing Environmental Threats to Human Health from Pregnancy to Senility. Abstract accepted, conference delayed due to COVID-19 pandemic.

4.    Li, L, Clements, N (2020). Exposure to Air Pollutants in Urban Indoor Walkways. Extended Abstract. Indoor Air 2020, Seoul, South Korea. Abstract accepted, conference delayed due to COVID-19 pandemic

5.    Clements, N (2019). Human-Centered Building Standards: Overview and Research Needs. ASHRAE 2019 Winter Conference, Seminar 50: Energy Efficiency and the Impact on Human Health. Atlanta, GA.

6.    Clements, N (2018). Optimizing Building-Human Interactions in the Office Environment. Healthcare Symposium 2018, Harvard Medical School, Boston, MA.

7.    Clements, N, Aristizabal, S, Ly, SM (2018). Characterization of Three Scent Diffusers using d-Limonene. Extended Abstract. Indoor Air 2018, Philadelphia, PA.

8.    Clements, N (2018). Technology for Fostering Resilience: An Unconference. Austin, TX.

9.    Clements, N, Bauer, B, MD, Zhao, J, Ramos, C, Anderson, A, Bernau, J (2017). The Well Living Laboratory: A Facility for Investigating the Impact of the Indoor Environment on Human Comfort, Health, and Productivity. ASHRAE 2017 Annual Conference, Seminar 10: Research Methods to Achieve Superior Comfort, Health, and Well-Being in Buildings.

10.  Zhao, J, Bauer, Brent, Pillai, Dana, Ramos, C, Clements, N, Vetting Wolf, T, Anderson, A, Bernau, J (2017). Occupant Preferences on Indoor Environmental Conditions in an Open Office. ASHRAE 2017 Winter Conference, Las Vegas, NV.

11.  Clements, N (2016). Indoor Environmental Quality Research at the Well Living Lab. Federal Interagency Committee on Indoor Air Quality (CIAQ).

12.  Clements, N (2016). WELL Symposium, Pittsburgh, PA.

13.  Clements, N, Miller, SL, Subhash, SS, Eagan, AE (2015). Hospital Surge Capacity: Practical Aspects of Temporary Isolation Ward Design. Healthy Buildings 2015. Boulder, CO.

14.  Clements, N, Miller, S, Peel, J, Milford, J, Hannigan, M (2014). The Colorado Coarse Rural-Urban Sources and Health Study: Spatiotemporal Variability of Coarse and Fine Particulate Matter Mass Concentrations and Composition. DUST2014 Conference, Castellaneta Marina, Italy.

15.  Clements, N, Duhl, T, Lee, E, Chhun, B, Rosario-Ortiz, F, Milford, JB, Miller, SL, Hannigan, MP (2013). Exploring the Composition of Urban and Rural Organic Matter Found in Coarse Particles (PM10-2.5) in Northeastern Colorado. AAAR Annual Conference, Portland, OR.

16.  Clements, N, Eav, J, Moore, A, Albano, K, Milford, JB, Miller, SL, Hannigan, MP (2012). Characterization of Metal and Ion Concentrations in Rural and Urban PM2.5 and PM10-2.5 in Colorado. AAAR Annual Conference, Minneapolis, MN.

17.  Bowers, R, Clements, N, Moore, A, Hannigan, M, Wiedinmyer, C, Fierer, N (2012). The Spatial and Temporal Variability in Bioaerosol Community Structure in Urban and Rural Colorado. AAAR Annual Conference, Minneapolis, MN.

18.  Clements, N, Milford, J, Miller, SL, Hannigan, M, Peel, JL (2012). Characterization of Rural and Urban PM2.5 and PM10-2.5 Mass Concentrations in Colorado from 3 Years of Continuous Monitoring. AAAR Annual Conference, Minneapolis, MN, 2012.

19.  Clements, N, Milford, J, Hannigan, M, Solheim, F (2012). Using Boundary Layer Dynamics for Air Pollution Concentration Prediction. EPA National Air Quality Conference, Denver, CO.

20.  Clements, N, Albano, K, Moore, A, Hannigan, M, Miller, S, Milford, J, Schauer, J, Sioutas, C (2011). The Spatial and Temporal Variability of the Composition of Fine and Coarse Particulate Matter in Colorado. AAAR Annual Conference, Orlando, FL.

21.  Clements, N, Coons, T, Hannigan, M, Miller, S, Milford, J (2010). Spatiotemporal Analysis of Particulate Matter Volatility using Filter Dynamic Measurement System - Equipped TEOMs. AAAR Annual Conference, Portland, OR.

22.  Clements, N, Piedrahita, R, Hannigan, M, Milford, J, Miller, S, Peel, J (2010). Continuous Coarse Particulate Matter Concentration Measurement and Source Identification Using Non-Parametric Regression. AAAR Speciality Conference: Air Pollution and Health: Bridging the Gap from Sources to Health Outcomes, San Diego, CA.

23. Clements, N, Hannigan, M, Milford, J, Miller, S, Ortega, J, Peel, J (2009). Measuring Mass Concentrations of Urban and Rural Coarse Particulate Matter in Northeastern Colorado. AAAR Annual Conference, Minneapolis, MN, 2009.

Academic Awards and Professional Service

Professional Societies: ASHRAE (EHC, SGPC10, TRG.IAQP, TC2.3, TC.4, MTG.HWBE), ISIAQ, IWBI COVID-19 Task Force

Reviewer for the following journals and organizations: Atmospheric Environment, Journal of Environmental Sciences, PLoS ONE, Indoor and Built Environment, Environmental Pollution, Science of the Total Environment, NSF, Environmental Science & Technology

Proposed and Managed CHI2018 Conference Session titled: Living Labs: Measuring Human Experience in the Built Environment (2018).

Proposed and Managed a DUST2014 Conference Session titled: Dust Near Population Centers – Sources, Composition, Epidemiology, and Toxicity (2014).

Mech. Engineering Department Graduate Teaching Fellowship Recipient (2013)

Mentoring and Advising Activities:

Well Living Lab Interns and Analysts (2016-2020)

YOU’RE@CU/UROP Mentor (2014)

UROP Project Mentor (2012-2013)

NCAR SOARS Mentor/Advisor (2012)

YOU’RE@CU Mentor (2012)

Adviser to Undergraduate Research Assistants (2011-2012)

Teaching Experience

 University of Colorado Boulder

Instructor, MCEN4037 Measurements Lab 1 (Fall 2013)

Instructor, MCEN4047 Measurements Lab 2 (Fall 2013)

Instructor, MCEN4047 Measurements Lab 2 (Spring 2013)

Teaching Assistant, MCEN3208 Exp. Design and Data Analysis (Spring 2010)

Teaching Assistant, MCEN4228 Measurements Lab 1 (Fall 2009)