Four people were transported to hospitals as a precaution following a hazmat scare Thursday afternoon in Buttonwillow.
Hazmat crews responded to a field near Rowlee Road and Dresser Avenue at around 12:30 p.m.
County officials said four field workers felt ill after smelling herbicides being sprayed in an adjacent field.
Kern County Public Health officials identified the herbicides as the products: Goal, Alion and Round Up.
Michelle Corson with the Kern County Public Health Department said the herbicides were ground applied to a pistachio field and workers in an adjacent almond field complained of a strong odor.
Officials also interviewed 20 other workers who continued working.