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This study examines the effectiveness of the Toxics Use Reduction (TUR) Assistance program by analyzing TURA data from over a decade. Taking multiple perspectives, including independent econometric analysis and peer reviews, we delve into both the successes and challenges faced in measuring reductions in toxic substance use. The findings reveal significant reductions in chemical use associated with program participation, with insights into performance before and after TUR implementation. Ultimately, TUR is credited with significant environmental benefits and improvements in workplace safety.
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Effectiveness of TUR Assistance • Determined by analysis of TURA data • Numerous perspectives taken • Independent econometric analysis also conducted • Extensive peer review • Methodology refined over two-year period
Key Challenges • Measuring reductions in use in a way that is comparable across all sizes • Measuring reductions in a way that is invariant for production changes • Comparing performance in ways that don’t suffer from data distortions or input bias
Key Virtues • Existence of large TURA data set • Over one-thousand companies • Over a decade of annual reports • Over one hundred chemicals • Input/Output • Production Ratios
Primary Parameter • Production-adjusted Reduction in Use • Generated by multiplying PR by base year use to derive “expected use”, and comparing to actual use in given year • Normalized by interpreting reduction as percentage of expected use
Comparing Before and After Performance • 3143 data points: 1787 after, 1356 before • Averages for the groups must be weighted for comparison • Variance statistically significant? • After: 13.3% reductions • Before: 7.7%
Advancers/Decliners • Another way of measuring whether you are helping to improve performance • Could also use byproduct or byproduct/use • Different than measuring positive or negative reductions – looks at the direction of change
Byproduct/Use • Doesn’t need production adjustment • Complements Use Reduction tracking • Doesn’t need normalizing for size • Can compare change in ratio over time
Dropouts • Dropouts for business reasons less important than chemical reductions • One third dropped out by doing TUR • One sixth business, one sixth exemptions • 26% of nonvisited claimed TUR • 46% of visited claimed TUR
Independent Analysis • Econometrics a way of assessing the explanatory value of a factor • Does the visit explain the reductions seen? • 45 chemicals had enough data • 25 selected for time considerations • 15 showed statistically significant reductions related to the visits – in either use or byproduct
Reviews • NPPR Summit Work in Progress Presentation • EPA Region One presentation • Internal OTA and EOEA reviews • Secretary’s Science Advisory Board • All Day Subcommittee Review • Final Paper Review before SAB
Conclusions • TURA has resulted in hundreds of millions of pounds of reductions • OTA’s visits are associated with tens of millions of pounds of reductions • Cost/benefit analysis as conventionally performed could assign a zero dollar value to this result without more information
P2 Valuation • Chemical reductions reduce workplace risks, enhance productivity • Transportation, storage, transfer accidents reduced • Releases and wastes reduced • Costs of management reduced • Products made safer