Accumulation of selenium in sugarcane (Sachharum officinarum Linn.) in seleniferous areas of Punjab, India

Dhillon, K. S.; Dhillon, S. K.

doi:10.1007/bf01758556

Cited by 27 publications

(20 citation statements)

References 11 publications

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“…Often the concentrations of metal(loid)s released into the soil system by the natural pedogenic (or weathering) processes are largely related to the origin and nature of the parent material. Apart from Se [21,22] and As [23][24][25], other elements (e.g., Cr, Ni, Pb) derived via geogenic processes have limited impact on soil. Unlike pedogenic inputs, metal(loid)s added through anthropogenic activities typically have high bioavailability [26][27][28].…”

Section: Sources Of Heavy Metal(loid)s In Soil Environmentmentioning

confidence: 99%

Role of organic amendments on enhanced bioremediation of heavy metal(loid) contaminated soils

Park

Lamb

Paneerselvam

et al. 2011

Journal of Hazardous Materials

797

265

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Section: Sources Of Heavy Metal(loid)s In Soil Environmentmentioning

confidence: 99%

Role of organic amendments on enhanced bioremediation of heavy metal(loid) contaminated soils

Park

Lamb

Paneerselvam

et al. 2011

Journal of Hazardous Materials

797

265

View full text Add to dashboard Cite

“…Water-extractable B, F and Se were employed as bioavailable forms (Chen et al 1984;Dhillon and Dhillon 1991). Soil was extracted with ionized water at a ratio of 1:5 soil:water in a hot-water bath for 1 h. The extract was analyzed for B by a colorimetric method (Lu 1999), F by an F-selective electrode, and Se by atomic fluorescence spectrophotometry.…”

Section: Chemical Analysismentioning

confidence: 99%

Relationships between distributions of longevous population and trace elements in the agricultural ecosystem of Rugao County, Jiangsu, China

Huang

Zhao

Sun

et al. 2008

Environ Geochem Health

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Soil, plant, and water, as well as trace elements they contain, can influence human health through the food chain. A survey was conducted on distributions of trace elements in soils, plants, and drinking water in Rugao County, Jiangsu Province, China, an agricultural area with a high level of centenarians and nonagenarians. The ratio of people over 90 years old per 100,000 inhabitants (90-rate) based on village (about 4,000 residents in 4 km(2)) was correlated with trace elements in soil, drinking water, and rice by means of correlation analysis and/or principal component analysis. Although the average 90-rate in the whole area was as high as 277, the rates were not uniform across the entire region. The 90-rate in the area of loamy and strongly-developed Anthrosols and Cambosols was about 330, significantly higher than the 255 in the areas of sandy and strongly-developed Cambosols and of clayey and weakly-developed Cambosols. The concentrations of available Se, B, Ni, and Mo in soils of the area with the high 90-rate were markedly greater than those in the area with the low 90-rate. This was demonstrated by highly positive correlations between the 90-rate and available Se (r = 0.33), B (r = 0.21), Ni (r = 0.17) and Mo (r = 0.17) at the p < 0.01 level and high loadings of available Se (0.851), B (0.535), Ni (0.594) and Mo (0.394) in the longevous factor. Similar relationships between the available elements in soils and elements in water and rice were found. These results suggest that: (1) the available forms of elements in soil were more crucial to elemental bio-availability in the ecosystem and human health than total elements in soil; and (2) the element association above might have affected the 90-rate positively and could be an important environmental geochemical factor influencing the longevity of humans.

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“…Particle size analysis of 4 samples for each soil series from different locations (a total of 35 samples) was performed using a laser diffractometer (Beuselinck et al, 1998). Water soluble Se, a form of exchangeable Se in soil, was extracted using deionized water with a soil to water ratio of 1:5 in a hot-water bath for 1 hour (Dhillon and Dhillon, 1991) and Se was determined by atomic fluorescence spectrometry (AFS) (Wu et al, 1998). Atomic fluorescence spectrometry method has very high sensitivity to Se determination with a detective limit of 0.01 µg Se L -1 .…”

Section: Sampling and Chemical Analysismentioning

confidence: 99%

Spatial variability of soil selenium as affected by geologic and pedogenic processes and its effect on ecosystem and human health

et al. 2009

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Selenium (Se) deficiency and excess in agricultural ecosystems are related to many human health problems through the food chain and depend on the spatial variability and bioavailability of Se in soils. This paper examines the spatial variability of Se in soils as affected by geologic and pedogenic processes and its effects on rice grains, groundwater, and human health using Rugao County, Jiangsu Province, an agricultural area in Yangtze River Delta Region, which has a high level of nonagenarians, as a case study. The results showed that total soil Se (T-Se) concentration in the study area (average 0.13 ± 0.02 mg kg -1 , n = 203) was close to the Se Clark value, the Se mean concentration in earth crust, and had narrow spatial variation as a result of consistent geological processes. As a fraction of the potential bio-available Se in ecosystems, soil water soluble Se (WS-Se) (average 2.27 ± 1.09 µg kg -1 , n = 203) had wide spatial variation. The higher concentrations of WS-Se were spatially distributed on loamy and highly weathered soils in the east and north of the county. Spatial heterogeneity of WS-Se was primarily due to changes in soil physicochemical properties caused by pedogenic processes related to cultivation. Average Se concentration in the rice grains and groundwater were 97 ± 69 µg kg -1 (n = 93) and 0.19 ± 0.21 µg L -1 (n = 95), respectively. Similar spatial variability and correlation between WS-Se and rice Se, groundwater Se, and longevity ratio (an index of nonagenarians per 100,000 inhabitants), were found, indicating that the soluble fractions of Se in soils play an important role in biogeochemical cycling in the ecosystem and might be an important indicator of Se deficiency or excess in soils. Thorough small-scale surveys of element availability in the soil should be emphasized where geologic settings are simple but pedogenic processes are complex due to intensive human activities. So WS-Se in soils was advised as a better indicator for Se environmental effect than T-Se, especially when dealing with simple geologic settings and complex pedogenic processes on a small scale.

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Accumulation of selenium in sugarcane (Sachharum officinarum Linn.) in seleniferous areas of Punjab, India

Cited by 27 publications

References 11 publications

Role of organic amendments on enhanced bioremediation of heavy metal(loid) contaminated soils

Role of organic amendments on enhanced bioremediation of heavy metal(loid) contaminated soils

Relationships between distributions of longevous population and trace elements in the agricultural ecosystem of Rugao County, Jiangsu, China

Spatial variability of soil selenium as affected by geologic and pedogenic processes and its effect on ecosystem and human health

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