Although results were not statistically significant,
1 and 5 mg kg−1 of B[a]P slightly increased the shoot
dry weight of Z. mays by 4.6 and 14.4 %, respectively,
relative to control treatments while 10 mg kg−1 reduced
the shoot biomass by 38.6 %. Increasing concentration
of Cr in soil reduced the shoot dry weight of Z. mays