Fig. 8. Degradate fractions in rain samples and rainfall amounts during selected time periods for (a) chlorpyrifos oxygen analog (OA) at the Indiana site in 2003, (b) chlorpyrifos OA at the California sites in late 2003 and early 2004, (c) malathion OA at the Indiana site in 2003, (d) malathion OA at the Indiana site in 2004, (e) diazinon OA at the California sites in late 2003 and early 2004, and (f) 1-naphthol at the California sites in December 2003.