Rare earths elements in phosphorite and granulated single super-phosphate fertilizers of Pakistan, a study using instrumental neutron activation analysis

Waheed, S.; Sabiha-Javied,; Siddique, N.; Shakoor, Rana I.; Tufail, Muhammad

doi:10.1007/s10967-011-1112-0

Cited by 16 publications

(3 citation statements)

References 25 publications

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“…Soils originated from igneous rocks, schists, and sandstone tend to contain more REE when compared to those originated from other materials [41]. Increased REE contents in areas affected by anthropogenic alterations are usually a result of the application of agricultural fertilizers [49,52,53,56,69,70]. However, environmental factors such as rain, snow, and wind transport can contribute to these contents, mainly in areas close to large industrial sites [47].…”

Section: Soil Reference Concentrationsmentioning

confidence: 99%

Rare Earth Elements in the Soil Environment

et al. 2016

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Rare earth elements (REE) are a homogenous group of 17 chemical elements in the periodic table that are key to many modern industries including chemicals, consumer electronics, clean energy, transportation, health care, aviation, and defense. Moreover, in recent years, they have been used in agriculture. One of the consequences of their worldwide use is the possible increase of their levels in various environmental compartments. This review addresses major topics concerning the study of REE in the soil environment, with special attention to the latest research findings. The main sources of REE to soils, the contents of REE in soils worldwide, and relevant information on the effects of REE to plants were explored. Ecological and human health risk issues related to the presence of REE in soils were also discussed. Although several findings reported positive effects of REE on plant growth, many questions about their biological role remain unanswered. Therefore, studies concerning the actual mechanism of action of these elements on cellular and physiological processes should be further refined. Even more urgent is to unveil their chemical behavior in soils and the ecological and human health risks that might be associated with the widespread use of REE in our modern society.

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Section: Soil Reference Concentrationsmentioning

confidence: 99%

Rare Earth Elements in the Soil Environment

et al. 2016

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“…The possibility of relating the increase in concentrations of REEs in a few horizons with such industrial activities is remote, simply because in the territory that covers the PDO Valdepeñas, the industrial activity is essentially limited to wine-making. Therefore, the traditional application of phosphate fertilizers, which may contain REEs, is of particular importance (Kotelnikovaa et al, 2021;Lijun et al, 2004;Otero et al, 2005;Tyler, 2004;Volokh et al, 1990;Waheed et al, 2011). Specifically, Hu et al (2004) indicated that phosphogypsum and phosphate fertilizers contain 27-45 mg kg −1 of La and 39-61 mg kg −1 of Ce.…”

Section: Ree Concentrationsmentioning

confidence: 99%

Occurrence of some rare earth elements in vineyard soils under semiarid Mediterranean environment

Jiménez‐Ballesta

Bravo

Ortíz-Villajos

et al. 2022

Environ Monit Assess

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A comprehensive investigation has been carried out into the concentrations of a range of REEs (neodymium Nd, cerium Ce, lanthanum La, yttrium Y, scandium Sc) in soils of vineyards belonging to the protected denomination of origin (PDO) Valdepeñas (Central Spain). The mean concentrations (expressed in mg kg−1) are Ce 70.6, Nd 32.9, La 36.2, Y 21.6, and Sc 13.7 in surface horizons (Ap), while in subsurface horizons (Bt or Bw and some Ck), the values are Ce 67.6, Nd 31.8, La 34.4, Y 19.6, and Sc 13.9. The relative abundance in these soils is Ce > La > Nd > Y > Sc in both the surface and subsurface horizons. These values are close to, or slightly higher than, the regional levels but similar to national and global averages, although relatively high values have been detected at certain sampling points. Another aim was to explain the spatial variations in these elements within the territory under study. It was found that the spatial variations are due to the nature of the parent materials and the pedogenetic processes, although the sparse spatial distribution patterns with prominent anomalies are interpreted arising from anthropogenic sources (fertilization). However, these anomalies did not present any environmental risk in the studied zone.

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“…Different techniques may be used at the (Taylor, Kim, Smidt, Kratz) Syers et al (1986), Takeda et al (2006), Tankard (1974, Tayibi et al 2009, Uprety et al (2009), Waheed et al (2011), Wassef et al (1977, Williams (1974), Yamazaki and Geraldo (2003), , Zielinski et al (2000Zielinski et al ( , 2006 beneficiation stage, to treat the same ore for removal of the gangue and associated impurities. These phosphates are interposed with sedimentary and gangue minerals and thus sedimentary phosphate rocks have differing compositions within the same source.…”

Section: Phosphate Rockmentioning

confidence: 99%

Phosphorus in Agriculture: 100 % Zero

Schnug

Kok²

2016

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Rare earths elements in phosphorite and granulated single super-phosphate fertilizers of Pakistan, a study using instrumental neutron activation analysis

Cited by 16 publications

References 25 publications

Rare Earth Elements in the Soil Environment

Rare Earth Elements in the Soil Environment

Occurrence of some rare earth elements in vineyard soils under semiarid Mediterranean environment

Phosphorus in Agriculture: 100 % Zero

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