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11.
Soil pollution assessment and identification of hyperaccumulating plants in chromated copper arsenate (CCA) contaminated sites, Korea 总被引:3,自引:0,他引:3
In recent decades, heavy metal contamination in soil adjacent to chromated copper arsenate (CCA) treated wood has received increasing attention. This study was conducted to determine the pollution level (PL) based on the concentrations of Cr, Cu and As in soils and to evaluate the remediative capacity of native plant species grown in the CCA contaminated site, Gangwon Province, Korea. The pollution index (PI), integrated pollution index (IPI), bioaccumulation factors (BAFshoots and BAFroots) and translocation factor (TF) were determined to ensure soil contamination and phytoremediation availability. The 19 soil samples from 10 locations possibly contaminated with Cr, Cu and As were collected. The concentrations of Cr, Cu and As in the soil samples ranged from 50.56-94.13 mg kg−1, 27.78-120.83 mg kg−1, and 0.13-9.43 mg kg−1, respectively. Generally, the metal concentrations decreased as the distance between the CCA-treated wood structure and sampling point increased. For investigating phytoremediative capacity, the 19 native plant species were also collected in the same area with soil samples. Our results showed that only one plant species of Iris ensata, which presented the highest accumulations of Cr (1120 mg kg−1) in its shoot, was identified as a hyperaccumulator. Moreover, the relatively higher values of BAFshoot (3.23-22.10) were observed for Typha orientalis, Iris ensata and Scirpus radicans Schk, suggesting that these plant species might be applicable for selective metal extraction from the soils. For phytostabilization, the 15 plant species with BAFroot values > 1 and TF values < 1 were suitable; however, Typha orientalis was the best for Cr. 相似文献
12.
Usman Muhammad Murtaza Behzad Natasha Natasha Imran Muhammad Abbas Ghulam Amjad Muhammad Shahid Muhammad Ibrahim Sobhy M. Owens Gary Murtaza Ghulam 《Environmental monitoring and assessment》2022,194(2):1-30
Environmental Monitoring and Assessment - Few estuaries remain unaffected by water management and altered freshwater deliveries. The Caloosahatchee River Estuary is a perfect case study for... 相似文献
13.
An incubation experiment lasting 111 d was carried out to study the effect of the addition of three clay minerals (Na-bentonite, Ca-bentonite, and zeolite) to soil derived from sewage sludge on water-extractable and exchangeable forms of four heavy metals (Zn, Cd, Cu, and Ni), as well as on soil organic matter mineralization, microbial biomass C and the release of inorganic N. The addition of clay minerals led to a significant decrease in water-extractable and exchangeable forms of heavy metals. The extent of decrease ranged from 14 to 75% for the water-extractable heavy metals and from 12 to 42% for the exchangeable form over the incubation time, as compared with untreated soil. The reduction in extractability of heavy metals was greater due to the addition of Na-bentonite and Ca-bentonite than that due to the addition of zeolite. Addition of clay minerals did not affect any of the following microbiological parameters in the soil: microbial biomass C, organic C (Corg) mineralization, and metabolic quotient (qCO2), and release of inorganic N during the first 3 weeks of incubation. However, as the incubation period increased, these parameters were significantly increased by the addition of clay minerals, especially by the addition of Na-bentonite and Ca-bentonite. This result is explained by a strong reduction in extractability of heavy metals after the addition of Na-bentonite and Ca-bentonite. 相似文献
14.
Güngör Hasan Olanipekun Ifedolapo Olabisi Usman Ojonugwa 《Environmental science and pollution research international》2021,28(2):1464-1478
Environmental Science and Pollution Research - Considering the role democratic structures play in shaping the policies that enhance environmental quality, this paper tests the environmental Kuznets... 相似文献
15.
Mousazadeh Milad Niaragh Elnaz Karamati Usman Muhammad Khan Saif Ullah Sandoval Miguel Angel Al-Qodah Zakaria Khalid Zaied Bin Gilhotra Vishakha Emamjomeh Mohammad Mahdi 《Environmental science and pollution research international》2021,28(32):43143-43172
Environmental Science and Pollution Research - Electrocoagulation (EC) is one of the emerging technologies in groundwater and wastewater treatment as it combines the benefits of coagulation,... 相似文献
16.
Jafri Muhammad Afaq Haider Liu Huizheng Usman Ahmed Khan Qasim Raza 《Environmental science and pollution research international》2021,28(28):37435-37447
Environmental Science and Pollution Research - To understand the nexus between economic growth and energy sources, in this study, we have selected Pakistan and collected data over the period... 相似文献
17.
Usman Muhammad Ma Zhiqiang Zafar Muhammad Wasif Waheed Abdul Li Mingxing 《Environmental science and pollution research international》2021,28(39):54551-54564
Environmental Science and Pollution Research - The current global spirit for sustainable development has led to increased attention to reducing the use of conventional energy sources and managing... 相似文献
18.
Yong Sik Ok Sang Soo Lee Weon-Tai Jeon Sang-Eun Oh Adel R. A. Usman Deok Hyun Moon 《Environmental geochemistry and health》2011,33(1):31-39
Liming materials have been used to immobilize heavy metals in contaminated soils. However, no studies have evaluated the use of eggshell waste as a source of calcium carbonate (CaCO3) to immobilize both cadmium (Cd) and lead (Pb) in soils. This study was conducted to evaluate the effectiveness of eggshell waste on the immobilization of Cd and Pb and to determine the metal availability following various single extraction techniques. Incubation experiments were conducted by mixing 0–5% powdered eggshell waste and curing the soil (1,246 mg Pb kg?1 soil and 17 mg Cd kg?1 soil) for 30 days. Five extractants, 0.01 M calcium chloride (CaCl2), 1 M CaCl2, 0.1 M hydrochloric acid (HCl), 0.43 M acetic acid (CH3COOH), and 0.05 M ethylendiaminetetraacetic acid (EDTA), were used to determine the extractability of Cd and Pb following treatments with CaCO3 and eggshell waste. Generally, the extractability of Cd and Pb in the soils decreased in response to treatments with CaCO3 and eggshell waste, regardless of extractant. Using CaCl2 extraction, the lowest Cd concentration was achieved upon both CaCO3 and eggshell waste treatments, while the lowest Pb concentration was observed using HCl extraction. The highest amount of immobilized Cd and Pb was extracted by CH3COOH or EDTA in soils treated with CaCO3 and eggshell waste, indicating that remobilization of Cd and Pb may occur under acidic conditions. Based on the findings obtained, eggshell waste can be used as an alternative to CaCO3 for the immobilization of heavy metals in soils. 相似文献
19.
Liu Dong Xie Yuantao Hafeez Muhammad Usman Ahmed 《Environmental science and pollution research international》2022,29(20):29746-29755
Environmental Science and Pollution Research - This study examines the role of financial inclusion on the environment-economic performance in the top five Asian emerging economies. The data used... 相似文献
20.
Nisar Asif Saeed Muhammad Muneer Majid Usman Muhammad Khan Iltaf 《Environmental science and pollution research international》2022,29(1):418-430
Environmental Science and Pollution Research - Photocatalytic treatment is one of the techniques used for the treatment of dyes-contaminated wastewater. It is important to develop an effective... 相似文献