2,4-D was the
pesticide the more used in USA in the commercial sector and
the gardening sector with,weights of respectively, 3.6–5.0 and
7.3–8.2 · 106 kg (EPA, 2004). 2,4-D is toxic to broad-leaved
plants. This herbicide is absorbed by roots and translocates
to the growing points of roots where it inhibits the growth of
the plants. Due to low soil sorption and high potential of leach
ability, its residues are often reported in the surface and
ground water (Pichat et al., 1993). It is a well known endocrine
disrupter (Colborn et al., 1993).