Apply air quality modeling expertise with Langan from any Langan location, supporting permitting projects through AERMOD, MOVES, and technical analysis.Langan seeks an Air Quality Permitting and Dispersion Modeling Specialist for projects serving clients throughout the United States. This specialist prepares emissions calculations, compliance reports, permit applications, and dispersion modeling analyses. The work includes Title V, PSD, Current Source Review, and Environmental Impact Statement support. You will communicate technical products to clients and agencies while contributing to multidisciplinary engineering teams.Key Responsibilities:
Support air quality permitting and dispersion modeling projectsDevelop, execute, and analyze air quality dispersion modelsEvaluate impacts using AERMOD, MOVES,



and CALPUFFPrepare emissions calculations, compliance reports, and permit applicationsCommunicate technical work products to clients and agenciesRequirements:
Bachelor’s degree in environmental or chemical engineeringFour-plus years in air quality permitting and modelingExperience with AERMOD, CALPUFF, AERSCREEN, or MOVESExperience preparing permit applications and detailed emissions calculationsStrong analytical, judgment, and problem-solving capabilitiesUse dispersion modeling, permitting, and emissions analysis skills to deliver air quality consulting projects with Langan nationwide.
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📌 Air Quality Modeling Specialist (Stirling-Rawdon)
🏢 Langan Engineering & Environmental Services
📍 Stirling-Rawdon