Meg Jalalizadeh, Ph.D.

Senior Associate
Environmental & Earth Sciences
Pasadena

Dr. Meg Jalalizadeh has more than 10 years of research and consulting experience in assessing, measuring, and modeling the fate and mobility of contaminants within sediments and water. Dr. Jalalizadeh’s work has focused on passive sampling of hydrophobic compounds (e.g., PAHs and PCBs) in aquatic sediment, including understanding and modeling diffusion mechanisms of hydrophobic compounds in sediment.

Dr. Jalalizadeh has worked on a variety of projects involving the measurement, remediation, and environmental modeling of PCBs, PAHs, pesticides, dioxins and furans, metals, and other sediment contaminants. She has provided litigation, technical, analytical, field, and laboratory support under CERCLA and other statutes for numerous multiparty sites involving a range of conditions (e.g., saline to freshwater). Her project experience includes the use of passive sampling to measure bioavailability of hydrophobic organic compounds; understanding the efficacy of activated carbon amendments within contaminated sediments in different sites such as Lower Duwamish Waterway (Seattle, WA), the US Navy shipyard in Bremerton, WA, San Diego Bay, CA, and Middle River, MD; and data analysis to understand the spatial variability of sediment contaminants within Portland Harbor (Portland, OR). Additionally, she patented the invention of an actively shaken in-situ passive sampler for accelerating the sampling rate of sedimentary contaminants.

Dr. Jalalizadeh’s expertise also includes environmental modeling, and she has used Matlab and CapSim to simulate diffusive processes of contaminants within sediments. She has experience with advanced measurement techniques (e.g., AVS-SEM), development of kinetic growth models (e.g., for microalgae cultivation), and her work has been used to support ecological risk assessments.

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Environmental Engineering, University of Maryland, Baltimore County, 2017
  • M.Sc., Environmental Engineering, University of South Florida, 2012
  • B.Sc., Chemical Engineering, Sharif University of Technology, Iran, 2009
  • Third place award for white paper at the Geosyntec consultants 8th annual student paper competition, April 2017

    First place award for graduate student poster at HDC SETAC fall meeting, October 2016

LANGUAGES

  • Farsi

Publications

Patmont, E.; Jalalizadeh, M.; Bokare, M.; Needham, T.; Vance, J.; Greene, R.; Cargill, J.; Ghosh, U. Full scale application of activated carbon to reduce pollutant bioavailability in a 5-acre lake. ASCE's Journal of Environmental Engineering. 2020, 146, 04020024.

Jonker, M.; van der Heijden, Stephan S.; Adelman, D.; Apell, J.; Burgess, R.; Choi, Y.; Fernandez, L.; Flavetta, G.; Ghosh, U.; Gschwend, P.; Hale, S.; Jalalizadeh, M.; Khairy, M.; Lampi, M.; Lao, W.; Lohmann, R.; Lydy, M.; Maruya, K.; Nutile, S.; Oen, A.; Rakowska, M.; Reible, D.; Rusina, T.; Smedes, F.; Wu, Y. Advancing the use of passive sampling in risk assessment and management of sediments contaminated with hydrophobic organic chemicals: Results of an international ex situ passive sampling inter-laboratory comparison. Environ. Sci. Technol. 2018, 52, 3574−3582.

Jalalizadeh, M.; Ghosh, U. Analysis of measurement errors in passive sampling of porewater PCB concentrations under static and periodically vibrated conditions. Environ. Sci. Technol. 2017, 51, 7018-7027.

Jalalizadeh, M.; Ghosh, U. In situ passive sampling of sediment porewater enhanced by periodic vibration. Environ. Sci. Technol. 2016, 50, 8741-8749.

Lee, E.; Jalalizadeh, M.; Zhang, Q. Growth kinetic models for microalgae cultivation: A review. Algal Research. 2015, 12, 497-512.

Presentations

Jalalizadeh, M., Conder, J., Healey, M., Roberts, J. Recent Enhancements of Passive Sampling as a Decision-Making Tool for Sediment Sites. Platform presentation, 11th International Passive Sampling Workshop and Symposium, Boston, MA. 2019.

Jalalizadeh, M., Ghosh, U. Actively shaken in situ passive sampler for measuring pore water concentrations of hydrophobic organic compounds. Platform presentation, Battelle sediment conference, New Orleans, LA. 2017.

Jalalizadeh, M., Ghosh, U. Actively shaken in situ passive sampler for measuring pore water concentrations of hydrophobic organic compounds. Platform presentation, SETAC Annual Meeting, Orlando, FL. 2016.

Jalalizadeh, M., Ghosh, U. Development of fundamental understanding of PAH and PCB uptake by passive samplers. Poster presentation, Gordon Research Conference. Holderness, NH. 2016.

Jalalizadeh, M., Ghosh, U. Actively shaken in situ passive sampler for measuring pore water concentrations of polyaromatic hydrocarbons. Platform presentation, SETAC Annual Meeting, Salt Lake City, UT. 2015.

Jalalizadeh, M., Ghosh, U. Development of fundamental understanding of PAH and PCB uptake by passive samplers. Poster presentation, SETAC Annual Meeting, Nashville, TN. 2013

Patents

US Patent 10, 55, 283 B2: Actively shaken in situ passive sampler to measure freely dissolved pollutant concentration in sediment porewater, February 2020 (Jalalizadeh M., Ghosh U).

Prior Experience

Senior Staff Professional, Geosyntec Consultants Inc., 2017-2020

Engineer, Pender Engineering Co., 2009-2010

Professional Affiliations

Society of Environmental Toxicology and Chemistry (SETAC)

Project Experience

Investigation of Amendment Alternatives for Contaminant Reduction in Fish Harbor Sediments (Los Angeles, California). Evaluated the performance of clean dredged material to address sediment-associated PCBs and copper in Fish Harbor. Designed a bench-scale study with site sediment and passive samplers to compare the performance of clean dredged material (as amendment) to sand and activated carbon. Assisted with developing a sampling analysis report.

Investigating the Performance of Rapid Field Sediment Petroleum Assessment Tools (Houston, Texas). Evaluated rapid field sediment petroleum assessment tools for measuring PAHs in porewater and bulk sediment. Performed project management and coordinated the laboratory and field work. Designed bench scale experiments for measuring the concentration of PAHs in sediment porewater with different assessment tools. Interpreted the results and prepared an expert report.

Portland Harbor Superfund Site Pre-Remedial Investigation Design (Portland, Oregon). Provided support for the pre-remedial design investigation work, which was designed to enable stakeholders (including EPA Region 10) to evaluate pre-remedy conditions for long-term monitoring at the Portland Harbor Sediment Superfund Site. Analyzed the Spatially Weighted Average Concentrations (SWAC) for six groups of contaminants in sediment using a variety of geospatial tools over several hundred spatial scales at the Site, and prepared responses to client and regulatory comments.

Lower Duwamish Waterway Enhanced Natural Recovery Pilot Study (Seattle, Washington). As part of a multi-expert team, implemented a 3-year pilot study to evaluate the performance, effectiveness, and potential adverse effects of adding a sorptive activated carbon amendment to an Enhanced Natural Recovery remedy to address sediment-associated PCBs in the Lower Duwamish Waterway. Performed passive sampling to evaluate PCB availability. Assisted with multiple field events to deploy, retrieve, analyze, and interpret passive porewater samplers in three test plots for the one-year and two-year monitoring events. Communicated results of the study to USEPA and other stakeholders.

Contaminated Sediment Investigation (San Diego, California). Provided litigation support by investigating the potential impacts of PCBs, PAHs, and metals to sediment in San Diego Bay. Performed research on historical reconstruction of releases to identify potential sources of chemicals to the investigation area. Designed a two-phase assessment approach for quantifying chemical availability via advanced measurement techniques (AVS-SEM, passive sampling) and equilibrium partitioning modeling. Helped with developing workplan and sampling analysis report for submission to the California Regional Water Quality Control Board (CRWQCB). Provided regulatory support, field planning and implementation.

Activated Carbon Sediment Remediation at Puget Sound Naval Shipyard and Intermediate Maintenance Facility (Bremerton, Washington). Participated in a multi-investigator demonstration remedial project (thin-layer placement of activated carbon) to reduce PCB availability in sediments at an active US Navy shipyard. Collaborated on field planning, implementation, and laboratory processing of sediment cores and passive samplers. Evaluated changes in availability of PCBs in sediment via environmental chemistry modeling and measurement of PCBs in porewater using passive samplers.

Sediment Remediation Monitoring (San Diego, California). Participated in a remediation demonstration project (thin-layer placement of mixture of activated carbon and sand) to reduce PCB availability in sediments at a site in San Diego Bay. Collaborated on field planning, field deployment of the passive samplers, analysis and interpretation of the passive sampler data, and expert report preparation.

Sediment Enhanced Monitored Natural Recovery (SEMNR) for sediment remediation (Pearl Harbor, Hawaii). Conducted research to support evaluation of the use of clean dredged sediment (SEMNR) as a thin layer cap material for remediating contaminated sediment. Designed laboratory experiments and performed passive sampling data analysis for a rapid and efficient assessment of the performance of SEMNR. Helped with writing technical reports and protocols for in situ deployment/evaluation of SEMNR.

Passive sampling data analysis for multiple confidential clients. Conducted passive sampling data analysis for determining bioavailable fraction of PCBs, PAHs, metals, pesticides, dioxins, and furans in sediment porewater and overlying water for multiple contaminated sediment sites.

Measurement of bioavailable fraction of hydrophobic organic compounds (Newark, New Jersey). Supported baseline ecological risk assessments by measuring the bioavailable fraction of non-polar organic chemicals (PCBs, PAHs, pesticides, dioxin and furans) in a sediment contaminated site in Newark Bay. Performed laboratory experiments with site sediment and passive samplers and analyzed passive sampling data.

Measurement of bioavailable fraction of hydrophobic organic compounds (Middle River, Maryland). Measured the bioavailable fraction of PCBs and PAHs in sediment and overlying water in Middle River Superfund site in order to provide base line data on site contamination. Helped with preparation, field deployment, and laboratory processing of the passive samplers, as well as passive sampling data analysis.

Measurement of bioavailable fraction of PCBs (Mirror Lake, Dover, Delaware). Measured the bioavailable fraction of PCBs and PAHs in sediment and overlying water in Mirror Lake, in order to evaluate the effectiveness of sediment remediation with activated carbon. Helped with preparation, field deployment, and laboratory processing of the passive samplers, as well as passive sampling data analysis.

Additional Information

Research Grants

Project No. ER17-1001, Environmental Security Technology Certification Program (ESTCP), March 2018.

Project No. ER-2540, Strategic Environmental Research and Development Program (SERDP), February 2016.

Peer Reviewer

Chemosphere

Environmental Toxicology and Chemistry

Bioresources and Bioprocessing

Knowledge

CREDENTIALS & PROFESSIONAL HONORS

  • Ph.D., Environmental Engineering, University of Maryland, Baltimore County, 2017
  • M.Sc., Environmental Engineering, University of South Florida, 2012
  • B.Sc., Chemical Engineering, Sharif University of Technology, Iran, 2009
  • Third place award for white paper at the Geosyntec consultants 8th annual student paper competition, April 2017

    First place award for graduate student poster at HDC SETAC fall meeting, October 2016

LANGUAGES

  • Farsi