Abstract
A greenhouse experiment was carried out to investigate the single effect of benzo[a]pyrene (B[a]P) or chromium (Cr) and the joint effect of Cr–B[a]P on the growth of Zea mays, its uptake and accumulation of Cr, and the dissipation of B[a]P over 60 days. Results showed that single or joint contamination of Cr and B[a]P did not affect the plant growth relative to control treatments. However, the occurrence of B[a]P had an enhancing effect on the accumulation and translocation of Cr. The accumulation of Cr in shoot of plant significantly increased by ≥ 79 % in 50 mg kg−1 Cr–B[a]P (1, 5, and 10 mg kg−1) treatments and by ≥ 86 % in 100 mg kg−1 Cr–B[a]P (1, 5, and 10 mg kg−1) treatments relative to control treatments. The presence of plants did not enhance the dissipation of B[a]P in lower (1and 5 mg kg−1) B[a]P contaminated soils; however, over 60 days of planting Z. mays seemed to enhance the dissipation of B[a]P by over 60 % in 10 mg kg−1 single contaminated soil and by 28 to 41 % in 10 mg kg−1B[a]P co-contaminated soil. This suggests that Z. mays might be a useful plant for the remediation of Cr–B[a]P co-contaminated soil.
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Chigbo, C., Batty, L. Phytoremediation for co-contaminated soils of chromium and benzo[a]pyrene using Zea mays L.. Environ Sci Pollut Res 21, 3051–3059 (2014). https://doi.org/10.1007/s11356-013-2254-0
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DOI: https://doi.org/10.1007/s11356-013-2254-0