手法を比較

	大気拡散モデリング	環境影響評価
分野	環境工学	環境工学
系統	Process / pipeline	Process / pipeline
提唱年	1961	1970
提唱者	Pasquill and Gifford	U.S. National Environmental Policy Act (NEPA)
種類	mathematical simulation pipeline	systematic assessment and decision-support pipeline
原典	Pasquill, F. (1974). Atmospheric Diffusion: The Dispersion of Windborne Material from Industrial and Other Sources (2nd ed.). Ellis Horwood Limited. ISBN: 978-0470657034	Glasson, J., Therivel, R., & Chadwick, A. (2005). Introduction to Environmental Impact Assessment (3rd ed.). Routledge. ISBN: 978-0415303910
別名	air quality modeling, plume modeling, atmospheric transport, emission dispersion	EIA, impact assessment, environmental screening, cumulative effects assessment
関連	4	4
概要	Air dispersion modeling is a quantitative method to predict the concentration and deposition of air pollutants (dust, gases, particulates) released from industrial sources, traffic, or combustion. Developed empirically by Pasquill and Gifford in the 1960s and formalized into the Gaussian plume model, these methods predict ground-level concentration downwind of a source using wind speed, stability class, source height, and meteorological data. Air dispersion models are essential tools for regulatory compliance, emission permitting, and exposure assessment.	Environmental Impact Assessment (EIA) is a systematic, structured process to identify, predict, and evaluate the environmental and social consequences of proposed development projects (infrastructure, extraction, manufacturing) before implementation. Mandated by law in most jurisdictions since the 1970s (NEPA in USA, EU Directive 2011/92/EU), EIA integrates scientific analysis of air quality, water resources, biodiversity, noise, and socioeconomic effects with stakeholder consultation and decision-making frameworks to inform project approval, design modification, or rejection.