The two pesticides showed differences in relation to their toxicity, as they are
products with different functions: one being a herbicide (bentazon) and the other
an insecticide (carbofuran). Bentazon showed low toxicity, with EC50/LC50
values ranging from 5,000 to 4,000,000 mg L1
, and had a greater effect on the
phytoplankton (Table 4). The insecticide carbofuran showed high toxicity
(EC50/LC50 values of 34 to 25,000 mg L1
) and a more severe effect on the
microcrustaceans