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Peter Anderson

Air Pollution Control Evaluations and Performance Assessments

2026-06-30T11:58:58-06:00March 28th, 2014|Tags: , , , , , , , , , , |

Geosyntec's air quality clients need services for emission control, device conceptual design and selection, feasibility, monitoring, evaluation, and optimization for their facilities. We help clients evaluate emission controls under complex regulatory and operational conditions, and we advise them about how to meet emission standards. We also work closely with clients on the selection of air pollution control technologies that minimize operational costs while still meeting the stringent control efficiencies required by federal and local regulations. Selection of optimal control technology includes consideration of the potential for the generation and removal of secondary pollutants such as combustion by-products, reactive compounds, greenhouse gas emissions, or waste or wastewater streams. With expertise in process design, as well as air pollution control technology design, Geosyntec’s engineers develop strategic approaches to complex, multipollutant emission challenges. These challenges are brought about by evolving emission standards on existing equipment and operations, new capital project expansions, facilities, and emission sources. Our portfolio includes finding ways to control gaseous pollutants using methods including scrubbing, adsorption, condensation, catalytic reduction, and oxidation. We also address combustion management and best operating practices for boilers, thermal oxidizers, engines, and combustion devices. In addition, we design particulate filtration, precipitation, and collection systems, dust control approaches, and other ways to control toxic air contaminants. We measure control system performance by applying standard emission measurement protocols, United States Environmental Protection Agency (USEPA) test methods, and other acceptable evolving measurement science to determine compliance or reduction potential for common criteria air pollutants. Our work often addresses emissions of volatile organic compounds (VOC), nitrogen oxides (NOx), carbon monoxide (CO), sulfur dioxide (SO2), and particulate matter, as well as toxic air contaminants and dangerous compounds like mercury and sulfur trioxide (SO3). Geosyntec installs state-of-the-practice hardware and software that uses cross-duct laser technology to continuously monitor ammonia (NH3) and SO3. We help clients select continuous emission monitoring system (CEMS) and programs for CEM compliance with federal state and consent decree monitoring provisions. Additionally, we prepare CEM data quality assurance and quality.

Air Dispersion Modeling

2026-04-21T09:58:39-06:00March 28th, 2014|Tags: , , , , , , , , , , , , |

Under many jurisdictions, facility owners are required to evaluate potential offsite air quality impacts to gain regulatory approvals. Our clients need consultants with experience running air dispersion models. These models use mathematical algorithms to characterize atmospheric processes, to understand how pollutants disperse, and to predict ambient concentrations of air contaminants. Geosyntec applies models to demonstrate compliance with allowable ground-level concentrations established by regulatory agencies. We have experience applying various air dispersion models ranging from those that predict ground-level concentrations from continuous emission sources to consequence analysis models used to assess impacts from unplanned catastrophic events. We use air dispersion modeling to assist clients with regulatory and nonregulatory air modeling projects, including permit applications to address ambient air quality and air toxic requirements. Our team works closely with clients to assess plant layout and stack location configurations to avoid negative impacts on the regional airshed and local communities. In addition, our practitioners conduct modeling to evaluate potential offsite impacts associated with risk assessments and hazard analyses. Our modelers are experienced with AERMOD/AERSURFACE/AERSCREEN/SCREEN3, CALPUFF, ALOHA, SLAB and Computational Fluid Dynamics (CFD) models. Our advanced collection and measurement methods help us generate robust data for air dispersion models that describe the complex behavior of pollutants in the air and how they interact with their environment. Our air dispersion modeling experience includes emerging pollutants such as ethylene oxide (C2H4O) and PFAS. Armed with this data, our engineers and scientists can accurately assess how a source affects a particular area and consult with clients on developing comprehensive environmental management strategies.

Hazardous Air Pollutant Control Program Development and Implementation

2026-06-30T12:03:42-06:00March 28th, 2014|Tags: , , , , , , , , , , , , |

Geosyntec helps clients determine performance and the cost of air pollution control techniques. These techniques are designed to reduce or eliminate emissions of hazardous air pollutants (HAPs) and regulated air toxics from industrial and commercial sources. Our air practitioners offer decades of experience measuring and mitigating adverse environmental and health effects caused by HAPs regulated under the Clean Air Act, the Resource Conservation and Recovery Act, and the Toxic Substances Control Act in the United States. We address client challenges at major and area sources across the country involving air toxics such as benzene, perchloroethylene, methylene chloride, ethylene oxide, and per- and polyfluoroalkyl substances (PFAS). Geosyntec's scientists and engineers employ advanced solutions to identify emission stream characteristics from sources located at a variety of industries. We assist clients with selection and implementation of the best mitigation and control systems for their facilities, and we provide permitting assistance under federal, state, and local air construction and operating permit programs. Geosyntec practitioners specialize in process design and air pollution control technology design that helps us develop strategic approaches to complex, multipollutant emission issues. Our process engineering and air pollution control experts provide clients with a balanced approach to their plant operations.

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