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. Author manuscript; available in PMC: 2021 May 21.
Published in final edited form as: Environ Pollut. 2019 Oct 30;257:113486. doi: 10.1016/j.envpol.2019.113486

Table 2:

Percentage of days exceeded USEPA aquatic invertebrate benchmark values for pool surface water during study period (1999–2014). EECs were simulated based on PWC deterministic simulations

Pesticide Maximum EECs (ug/l) Percent of days exceeded %
USEPA OPP aquatic life bench marks California Regional Waterboard Aquatic Life Criteria Fairy shrimp values
Acute Chronic Acute Chronic Acute
Diazinon Sites average 48.58 59.0 72.0 75.0 81.0 04.0
Chlorpyrifos Sites average 10.08 99.7 99.7 99.8 99.7 55.0
Malathion sites average 30.42 11.0 32.0 15.0 38.0 00.0