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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Shamshad, Isha Ding, Fenghua Arp, Hans Peter H. Li, Gang Khan, Sardar Waqas, Muhammad |
| Description | Author Affiliation: Khan S ( Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China); Waqas M ( Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China); Ding F ( College of Ecology, Lishui University, Lishui 323000, China.); Shamshad I ( Department of Environmental Science, University of Peshawar, Peshawar 25120, Pakistan.); Arp HP ( Department of Environmental Engineering, Norwegian Geotechnical Institute, Ullevaal Stadion, Oslo NO-0806, Norway.); Li G ( Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China) |
| Abstract | The influence of amending a contaminated soil with different dry-pyrolyzed biochars on the bioaccessibility and biouptake of polycyclic aromatic hydrocarbons (PAH) and potentially toxic elements (PTE) in turnip (Brassica rapa L.,) was investigated. This is the first study to examine the influence of biochar amendments on turnips grown in a contaminated soil. The biochars came from different local feedstocks, including sewage sludge biochar (SSBC), soybean straw biochar (SBBC), rice straw biochar (RSBC) and peanut shell biochar (PNBC). The biochars were applied to soil at 2% and 5% amendments, and the resulting influence on various soil and porewater properties were quantified. The bioaccessible concentrations of PAHs in soil and their bioaccumulation in B. rapa L. significantly (P < 0.05) decreased in the biochar amended soils. Biochar additions significantly (P ≤ 0.05) reduced the bioaccumulation of PTEs (As, Cd, Cu, Pb and Zn) in B. rapa L, though not as much as for PAHs. The most effective biochar at reducing both PAHs and PTEs was PNBC (P ≤ 0.05). Amendments of 5% biochar were more effective at reducing contaminant bioaccessibility than amendments at 2% (P < 0.05). Crop yield, however, increased the most for the 2% biochar amendments, in particular for SSBC (with a 49% increase in crop yield compared to the non-amended soil). Therefore, which biochar would be the most advantageous in this system would require a cost-benefit analysis between increasing crop yield (best achieved with 2% SSBC amendments) and decreasing the PAH and PTE uptake (best achieved with 5% PNBC amendments). |
| ISSN | 03043894 |
| Volume Number | 300 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2015-12-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Arsenic Metabolism Brassica Napus Drug Effects Charcoal Pharmacology Metals, Heavy Polycyclic Hydrocarbons, Aromatic Soil Pollutants Arachis Hypogaea Growth & Development Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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