APSCA: Comprehensive Risk-based Source-Receptor Relationships

The Air Pollution Social Cost Accounting (APSCA) model is a reduced-form model to generate a comprehensive set of source-receptor relationships for social costs of air pollution. The APSCA model was derived by applying an empirical disaggregation method to social costs estimated by EASIUR. It can be used to quickly estimate source contributions of air pollution burden borne by a downwind (or receptor) area, allowing the assessment of public health implications of emissions-related policy interventions from receptor's perspective.

What and How APSCA does?

This presentation shows the method and applications of EASIUR and APSCA. Please also take a look at this poster (presented at SRA 2015).

APSCA's estimation of source
    contribution at 14 metropolitan areas

Figure: Source contribution of social costs of inorganic PM2.5 (primary PM2.5, SO2, NOx, and NH3)
borne by 14 Metropolitan Statistical Areas. (Value of statistical life: $8.6M in 2010 USD, Relative risk: 1.06)

APSCA availability

We plan to provide an user-interface for APSCA here in the near future. Although we'd love to share APSCA, the raw APSCA dataset is too big to be posted here. Please ask us (apsca at barney.ce.cmu.edu), and we will assist you to get started with APSCA. For each source cell in a 148x112 grid covering the United States, APSCA estimates the effect of one tonne of air pollutant emissions on the social costs in the 148x112 receptor grid cells. Since APSCA has four species, four seasons, and three emissions elevations, the dataset has 148×112 × 148×112 × 4 × 4 × 3 floating point numbers, which is big.

For your information, we provide county-level source contribution estimates in 2005 here generated using the 2005 National Emissions Inventory.


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