I am aware of the ACT emission factor (<10 mm Hg = a 70% VOC reduction);
however, it'd be nice to (semi) quantify the potential benefit of
switching to lower VOC content or vapor pressure washes.
For instance, how much benefit is gained by switching from say xylene
(paint thinner, 8 mm Hg 68 F, 100% VOC) to a 12 carbon naphtha (0.2 mm
Hg, 100% VOC) or to a vegetable ester wash (<0.1 mm Hg, <1% VOC).