Appendix Table B.1.

Number of Aldehyde Samples Attempted and Successfully Analyzed and the Percentage of Success by Visit to Terminal

Terminal (Date)	Yard Upwind		Yard Downwind		In-Vehicle		Total		Samples Obtained (%)	Field Blanks	Lab Blanks
	Attempted	Analyzed	Attempted	Analyzed	Attempted	Analyzed	Attempted	Analyzed
Elizabeth, NJ (1/2004)	0	0	4	3	2	2	6	5	83	1	0
Oklahoma City, OK (2/2004)	1	1	2	2	3	3	6	6	100	0	0
Columbus, OH (3/2004)	12	11	2	2	4	2	18	15	83	2	0
Milwaukee, WIa (4/2004)	14	10	15	11	19	19	48	40	83	5	4
Memphis, TNb (5/2004)	10	5	4	2	18	16	32	23	72	2	3
Phoenix, AZc (6/2004)	5	5	1	1	10	10	16	16	100	2	2
Portland, OR (7/2004)	20	17	13	11	18	18	51	46	90	6	5
Denver, CO (8/2004)	18	18	14	14	19	18	51	50	98	4	5
Miami, FLb (10/2004)	4	0	3	0	18	18	25	18	72	2	2
Hagerstown, MDb (10/2004)	13	1	13	2	20	19	46	22	50	6	4
Nashville, TN (11/2004)	12	8	12	7	20	20	44	35	80	5	4
Middletown, CT (12/2004)	14	13	14	13	20	16	48	42	88	3	4
Houston, TXb (1–2/2005)	10	2	11	3	20	19	41	24	56	4	6
Laredo, TXb (2/2005)	15	1	13	0	14	12	42	13	31	1	2
Philadelphia, PA (3/2005)	16	16	13	13	18	17	47	46	98	6	2
Total	164	108	134	84	223	209	521	401	77	49	43

^aThe full complement of modified sampling boxes was not ready until the fourth terminal visit.

^bUpwind and downwind samples were lost in Memphis, Miami, Hagerstown, Houston, and Laredo because of high moisture in the air (i.e., high humidity and heavy rain).

^cDelivery of the sampling equipment in Phoenix was delayed until Wednesday of the sampling week.