Arsenic pollution at the industrial site of Reppel-Bocholt (north Belgium)

Cappuyns, Valérie; Herreweghe, Samuel Van; Swennen, Rudy; Ottenburgs, Raoul; Deckers, Jozef

doi:10.1016/s0048-9697(02)00096-7

Cited by 66 publications

(35 citation statements)

References 16 publications

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“…2). This result is in agreement with the results of other studies (Cappuyns et al, 2002). There was no statistically significant difference in concentrations of As among soils from 20 cm, 80 cm and 180 cm.…”

Section: Total As In Soil Profilessupporting

confidence: 93%

“…Arsenic can also come from sludge from these plants industrial site in Reppel, north Belgium, arsenic migrated up to 6 m beneath the soil surface, with the most contaminated portions occurring within the top 2 m, just above the mean water table (Cappuyns et al, 2002). Although current concentrations of As in the environmental rarely cause morbidity or death in the general population, continued exposure to lesser concentrations of As has been associated with a wide range of adverse effects (Chang, 1996;Nadal et al, 2004).…”

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confidence: 99%

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Distribution and availability of arsenic in soils from the industrialized urban area of Beijing, China

et al. 2008

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a b s t r a c tConcentrations of arsenic (As) were determined in soils of 5 industrial sites in an urban area of Beijing, China. Fifty seven typical surface soils were sampled to determine total concentrations of metals, pH and dissolved organic carbon (DOC). One hundred and eight deep soils were submitted to a four-step, sequential extraction to assess the relative mobility and bioavailability of As in the soil profiles. Total concentrations of As in surface soils ranged from 5.7 to 2.3 Â 10 1 mg kg À1 , dw with greater concentrations inside the perimeter of the chemical plant which had greater concentrations than did other plants. 75.4% of surface soil samples in the industrial area contained concentrations of As that were greater than was considered to be the background concentration of 7.8 mg kg À1, dw for the region. The mean concentration (9.9 mg kg À1 , dw) in the industrial soils was greater than that soils from other type of land use. Concentrations of As were significantly and negatively correlated with soil pH and DOC in industrial soils. Although mean concentration of total As in the soils from all sites were less at greater depths, the entire range from 0 to 180 cm (especially 0-80 cm) contained concentrations of As that were greater than background. Sequential extractions of soil indicated that only some surface soils had relatively great amount of extractable fraction of As. Most soils had relatively great amount of residual As. This result suggests that most arsenic in Beijing industrial soils should be immobile and of limited bioavailability.

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Section: Total As In Soil Profilessupporting

confidence: 93%

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confidence: 99%

Distribution and availability of arsenic in soils from the industrialized urban area of Beijing, China

et al. 2008

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“…This behaviour is consistent with a decrease in pH and the related increase in the competition with protons for negative sorption sites, the decrease in the total amount of negative sorption sites and the increase in solubility of several solid phases (Tack 2010). However, the extractability generally decreased to almost negligible values under neutral and basic pH conditions, with the exception of As, which exhibited a slight increase in leachability under basic pH conditions due to the anionic character of the As species in oxidised soils (Cappuyns et al 2002), although in terms of extraction yields, it was \1 %.…”

Section: Evaluation Of the Neutralisation Capacity By The Applicationsupporting

confidence: 72%

Viability of adding gypsum and calcite for remediation of metal-contaminated soil: laboratory and pilot plant scales

González-Núñez

Alba

Vidal

et al. 2014

Int. J. Environ. Sci. Technol.

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The effect of adding waste materials (gypsum and calcite) for the remediation of a soil contaminated by pyritic minerals was examined. Materials were characterised in terms of their acid neutralisation capacity (ANC), sorption capacity and structural components. Their effect on the contaminant leaching in soil ? material mixtures over a wide range of pH was also evaluated. Results at laboratory and pilot plant scales were compared to account for the potential variability in the material efficiency when applied at larger scale. The use of gypsum permitted its valorisation, although calcite was a more effective amendment because its addition led to a greater increase in the pH and acid neutralisation capacity, and thus in the sorption capacity in the resulting soil ? material mixture. In the same way, when the combination of gypsum ? calcite was added to the soil, it led to an increase in the pH from 2.5 to 6.9 and in the ANC from -86 to 1,513 meq/kg. As a result, the concentration of extractable heavy metals and As was reduced, and they were successfully immobilised both at laboratory and at pilot plant scales. Thus, the use of these materials induced a significant reduction in the contaminant mobility and permitted the valorisation of waste materials.

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“…These are a result of natural phenomena and human activity. One heavy metal of great concern, arsenic, is a ubiquitous naturally occurring element which is present in almost all soils [2]. The arsenic content of soils is related to the geological substratum, and a rather wide range of arsenic levels have been found in soils around the world with an average of 5-10 mg/kg in uncontaminated soils [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…One heavy metal of great concern, arsenic, is a ubiquitous naturally occurring element which is present in almost all soils [2]. The arsenic content of soils is related to the geological substratum, and a rather wide range of arsenic levels have been found in soils around the world with an average of 5-10 mg/kg in uncontaminated soils [2,3]. Arsenic may accumulate in soil because of human activity such as the discharge of waste from metal processing plants, the burning of fossil fuels, the mining of arsenic-containing ores and the use of arsenical pesticides [2,3].…”

Section: Introductionmentioning

confidence: 99%

Simulating Spatial Distributions, Variability and Uncertainty of Soil Arsenic by Geostatistical Simulations in Geographic Information Systems

Lin¹

2008

TOENVIRSJ

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This study quantifies and delineates the spatial distributions, variability and uncertainties of soil arsenic (As) in the northern part of Changhua County in central Taiwan by using kriging, sequential Gaussian simulation (SGS) and simulated annealing simulation (SAS) in geographic information systems. Thousand realizations of soil As are simulated by using SGS and SAS. The impacts of the number of generated realizations on the standard deviation of the soil arsenic distributions simulated by SGS and SAS were performed for assessing and mapping spatial variability and distributions of soil arsenic. The semivariogram results show that As data exhibited small scale variation in the study area. Kriging captures spatial distribution of soil As, but underestimate high As concentration area. However, both SGS and SAS well capture spatial distributions and variability of soil arsenic in the study area, but SGS results in higher average standard deviation than SAS with the same number of realizations. 40 realizations of SAS are reliable to simulate and map the distributions, variability and uncertainty of soil arsenic, but 100 realizations are needed by using SGS. Both estimates and simulates demonstrated that the high As concentration area distributed around the irrigation ditch systems and industrial plants in the study site. Finally, the cumulative distribution of soil As of 100 SGS realizations is obtained and can be used for further risk assessment.

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Arsenic pollution at the industrial site of Reppel-Bocholt (north Belgium)

Cited by 66 publications

References 16 publications

Distribution and availability of arsenic in soils from the industrialized urban area of Beijing, China

Distribution and availability of arsenic in soils from the industrialized urban area of Beijing, China

Viability of adding gypsum and calcite for remediation of metal-contaminated soil: laboratory and pilot plant scales

Simulating Spatial Distributions, Variability and Uncertainty of Soil Arsenic by Geostatistical Simulations in Geographic Information Systems

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