方法对比

	Toxic Release Inventory Analysis	Environmental Commodity Chain Analysis
领域	Environmental Sociology	Environmental Sociology
方法族	Process / pipeline	Process / pipeline
起源年份	2004	1994
提出者	Michael Ash & T. Robert Fetter (using EPA TRI / RSEI)	Gary Gereffi (commodity-chain framework); applied to environment by political ecology and ecological economics
类型	Toxicity-weighted spatial pipeline for distributional burden	Network-tracing pipeline linking consumption to distant environmental impacts
开创性文献	Ash, M., & Fetter, T. R. (2004). Who Lives on the Wrong Side of the Environmental Tracks? Evidence from the EPA's Risk-Screening Environmental Indicators Model. Social Science Quarterly, 85(2), 441-462.	Gereffi, G. (1994). The Organization of Buyer-Driven Global Commodity Chains: How U.S. Retailers Shape Overseas Production Networks. In G. Gereffi & M. Korzeniewicz (Eds.), Commodity Chains and Global Capitalism (pp. 95-122). Greenwood Press. ISBN: 9780313289149
别名	TRI Distributional Analysis, Toxic Burden Disparity Analysis, RSEI-Based Exposure Analysis, Industrial Pollution Equity Analysis	Green Commodity Chain Analysis, Global Value Chain Environmental Analysis, Ecological Commodity Chain Analysis, Follow-the-Thing Environmental Analysis
相关	4	3
摘要	Toxic Release Inventory (TRI) analysis uses mandatory facility-level reports of industrial chemical releases to measure how the burden of toxic pollution is distributed across social groups. Rather than counting raw pounds of emissions, which treat a ton of an innocuous solvent the same as a ton of a potent carcinogen, the modern approach weights releases by toxicity and models how they disperse to populations. Michael Ash and T. Robert Fetter's 2004 study showed how the EPA's Risk-Screening Environmental Indicators (RSEI) model, built on TRI, can be used to assign toxicity- and exposure-weighted pollution to neighborhoods and to test for disparities. They found consistent income and racial gradients: lower-income people and African Americans are exposed to more industrial air pollution, both across and within cities. The analysis combines the spatial-disparity logic of environmental justice with a chemical-specific account of harm. The result is a far more defensible burden measure than emission counts alone.	Environmental commodity chain analysis applies the global commodity chain (later global value chain) framework, originated by Gary Gereffi, to the question of who bears the ecological costs of production and consumption. Gereffi's insight was that globally dispersed production is organized into chains coordinated by lead firms, and that chains differ in their governance: producer-driven chains are steered by manufacturers, buyer-driven chains by retailers and brand owners who set prices, quality, and standards for their suppliers. Environmental analysts extend this by tracing a commodity from extraction through processing to consumption and attaching environmental loads, such as deforestation, emissions, and water use, to each node. Because the demand and the value capture often sit at the consuming end while the heaviest environmental burdens fall at the producing end, the method makes visible the geographic displacement of ecological costs that underlies global trade.