手法を比較

	大気拡散モデリング	カーボンフットプリント分析
分野	環境工学	環境工学
系統	Process / pipeline	Process / pipeline
提唱年	1961	1993
提唱者	Pasquill and Gifford	IPCC and life cycle assessment community
種類	mathematical simulation pipeline	data collection and modeling 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	International Organization for Standardization. (2018). ISO 14044:2006 Environmental Management – Life Cycle Assessment – Requirements and Guidelines.
別名	air quality modeling, plume modeling, atmospheric transport, emission dispersion	GHG accounting, life cycle carbon assessment, carbon inventory, emissions quantification
関連	4	3
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.	Carbon footprint analysis quantifies the total greenhouse gas (GHG) emissions—expressed in CO2-equivalent (CO2e)—attributable to an activity, product, organization, or process. Developed from life cycle assessment (LCA) and Intergovernmental Panel on Climate Change (IPCC) methodologies, carbon accounting encompasses direct emissions (operations, combustion) and indirect emissions (supply chain, energy consumption, waste). Carbon footprints inform climate mitigation strategies, corporate sustainability reporting, product labeling, and carbon pricing mechanisms.