TABLE 1—

Levels of Soil Sediment Contaminants Before and After Hurricane Katrina: New Orleans, LA; September 29, 2005

Compound Concentration	1999–2001a	September 2005b	February 2006c	February 2006d	2013–2017a	Safe Levelse	Clean-Up Levelsf
Arsenic mg/kg soil	NR	4.73 (1.19–34.20)	10.60–11.80	45.50–78.00	< 0.39	< 0.39	< 12.00
Lead mg/kg soil	99.00	290.90 (20.90–1090.00)	93.50–108.30	613.00–1160.04	54.00	< 100	400
Diesel mg/kg soil	NR	NR	524.1–956.8	7590–17 400	NR	65	650
B(a)P µg/kg soil	NR	NR	975.5–1359.6	2870–17 700	NR	100	330
EU/m2 soilg	NR	NR	indoors: 23.3; outdoors: 10.5	NR	NR	1.0	1.0
β-d-glucanh µg/m3 soilg	NR	NR	4.4	NR	NR	0.3	1.0

Note. B(a)P = benzo(a)pyrene; EU = bacterial endotoxin units; NR = not reported.

^aFrom Mielke et al.⁹

^bFrom Presley et al.⁸

^cFrom Roper et al.⁶

^dFrom Solomon and Rotkin-Ellman.⁷

^eAccording to the Environmental Protection Agency.

^fAccording to the Louisiana Department of Environmental Quality.

^gFrom the Centers for Disease Control and Prevention.¹⁰

^hβ-d-glucan is a mold biomarker.