Natural background and anthropogenic contributions of cadmium to New Zealand soils

McDowell, R. W.; Taylor, Mykel R.; Stevenson, Bryan

doi:10.1016/j.agee.2012.12.011

Cited by 52 publications

(30 citation statements)

References 29 publications

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“…Compared with other studies, the average of Cd concentration in this study was close to the result of 0.25 mg/kg in the work by Song et al (2013), but higher than 0.21 mg/kg by Niu et al (2013) and lower than 0.43 mg/kg by Wei and Yang (2010). (Table 1), the average of soil Cd concentrations in Chinese arable soil was close to that in agricultural soil in the USA (Holmgren et al 1993), but lower than New Zealand (McDowell et al 2013) and Zambia (Ikenaka et al 2010), and higher than Malaysia (Zarcinas et al 2004a), Thailand (Zarcinas et al 2004b), 26 countries in Europe (Lado et al 2008), and Australia (de Vries et al 2011). We should notice that the maximum Cd concentration in China was much higher than the other countries.…”

Section: Resultssupporting

confidence: 89%

Assessment of cadmium (Cd) concentration in arable soil in China

Zhang

Chen

Zhong

et al. 2014

Environ Sci Pollut Res

140

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Cadmium (Cd) concentration in arable soil has drawn broad public attention due to its direct effect on Cd concentration in food. However, there have been few studies of surveying Cd accumulation on the national scale in China. This paper collected 486 studies of Cd concentrations in Chinese arable soil. The results showed that the average Cd concentration was 0.27 mg/kg, higher than its background value, indicating that Cd had been introduced into arable soil by human activity. The Cd concentrations in areas of mining and smelting, urban areas, and areas irrigated by wastewater were obviously higher than that in remote areas. Spatially, Cd concentrations were lower in the north than those in the south, and many hotspots existed throughout China due to mining and smelting activities. Most Cd in the arable soil were accumulated from external sources in all investigated provinces except Ningxia Hui Autonomous Region.

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Section: Resultssupporting

confidence: 89%

Assessment of cadmium (Cd) concentration in arable soil in China

Zhang

Chen

Zhong

et al. 2014

Environ Sci Pollut Res

140

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“…McDowell et al (2013) analyzed a wide range of data derived from multiple studies in New Zealand; they reported that total and acid extractable Cd in surface soil layers, was, in nearly all cases, related to external loads with contaminated P-fertilizers. They concluded that Cd enters the soil through agricultural activities and accumulates in surface soils rather than inherited from geogenic processes (McDowell et al, 2013).…”

Section: Geological Vs Anthropogenic Sourcesmentioning

confidence: 99%

“…Higher concentration of Cd in the parent materials than the overlying soil layers may suggest a likely geological source of contamination (García et al, 2001;CaridadCancela et al, 2005;Buccolieri et al, 2010), whereas anthropogenic contamination may be the case if the opposite is true (Caridad-Cancela et al, 2005). Sources of soil contamination can be also determined by historical changes of Cd concentrations along soil profile as affected by time and human activities (McDowell et al, 2013). This approach requires reliable historical data, which are often difficult to obtain.…”

Section: Introductionmentioning

confidence: 97%

Concentration of cadmium in cacao beans and its relationship with soil cadmium in southern Ecuador

Chávez

Stoffella

et al. 2015

Science of The Total Environment

168

103

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“…The QRV determination regarding heavy metals in soils is well established in several countries (Chen et al, 1991;Kabata-Pendias and Pendias, 2000;Galuszka, 2007;Martínez-Lladó et al, 2008;Su and Yang, 2008;Bini et al, 2011;McDowell et al, 2013). In Brazil, few states have established their QRVs as required by Resolution 420; these include São Paulo (Cetesb, 2001), Minas Gerais (Copam, 2011), Paraíba (Copam, 2014, Pernambuco (Biondi et al, 2011a,b;CPRH, 2014) and Rio Grande do Sul (Fepam, 2014).…”

Section: Introductionmentioning

confidence: 99%

Background and Reference Values of Metals in Soils from Paraíba State, Brazil

Júnior

Nascimento

Biondi

et al. 2016

Rev. Bras. Ciênc. Solo

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Soil contamination by heavy metals threatens ecosystems and human health. Environmental monitoring bodies need reference values for these contaminants to assess the impacts of anthropogenic activities on soil contamination. Quality reference values (QRVs) reflect the natural concentrations of heavy metals in soils without anthropic interference and must be regionally established. The aim of this study was to determine the natural concentrations and quality reference values for the metals Ag, Ba, Cd, Co, Cu, Cr, Mo, Ni, Pb, Sb and Zn in soils of Paraíba state, Brazil. Soil samples were collected from 94 locations across the state in areas of native vegetation or with minimal anthropic interference. The quality reference values (QRVs) were (mg kg -1 ): Ag (<0.53), Ba (117.41), Cd (0.08), Co (13.14), Cu (20.82), Cr (48.35), Mo (0.43), Ni (14.44), Sb (0.61), Pb (14.62) and Zn (33.65). Principal component analysis grouped the metals Cd, Cr, Cu, Ni, Pb and Sb (PC1); Ag (PC2); and Ba, Co, Fe, Mn and Zn (PC3). These values were made official by Paraíba state through Normativa Resolution 3602/2014.

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Natural background and anthropogenic contributions of cadmium to New Zealand soils

Cited by 52 publications

References 29 publications

Assessment of cadmium (Cd) concentration in arable soil in China

Assessment of cadmium (Cd) concentration in arable soil in China

Concentration of cadmium in cacao beans and its relationship with soil cadmium in southern Ecuador

Background and Reference Values of Metals in Soils from Paraíba State, Brazil

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