Table 1.

Parameters for Total Benefits.

Parameter		Value	Source
1.	QALYH	0.810	Vossius et al. [13]
2.	QALYSPD	0.667
3.	V	$100,000	Chandra et al. [14]
4.	$M_{SPD}$	$12,491 + $9135	O’Brien et al. [15]
5.	r	3%	EPA ([3], Line 1220)
6.	time = PD onset	t = 25	Michael J. Fox Foundation for Parkinson’s Disease Research [20] and sources [21,22,23,24,25,26,27]
7.	time = death	t = 45	National Vital Statistics Reports (Table 7 in [28])
8.	$\begin{array}{l}{P}_{Exposure| Old WPS}\\ -P_{Exposure|New WPS}\end{array}$	$\frac{0.05}{1000}$	EPA (Table 4.5-3 in [3])
9.	# Workers	2 million	EPA ([3], Lines 68–71)
10.	PSPD	0.01	Michael J. Fox Foundation [31]