Seasonal Changes in Concentrations of Dissolved Pesticides and Organic Carbon in the Sacramento–San Joaquin Delta, California, 1994–1996
By
James L. Orlando and Kathryn M. Kuivila
Pesticides detected during the 1994 summer sampling season.
[Sites 3, 5, 7, 8, 11, 16, 17, 19, 21, 24, 27, 28, and 31 were not sampled during the period. Sites 2, 14, and 25 were each sampled twice during the sampling period. The following pesticides were not detected in any samples: alachlor, butylate, chlorpyrifos, cyanazine, DCPA, fonofos, malathion, methidathion, napropamide, pebulate, and thiobencarb. Concentrations are shown in nanograms per liter. Numbers in brackets are
USGS National Water Information System (NWIS) parameter codes. hh, hours;
id, identification; mm, minutes; mm/dd/yyyy, month/day/year; nd, not detected; ( ), detected at a concentration less than the method detection limit]