scholarly journals Assessment of Potential Location of High Arsenic Contamination Using Fuzzy Overlay and Spatial Anisotropy Approach in Iron Mine Surrounding Area

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Thanes Weerasiri ◽  
Wanpen Wirojanagud ◽  
Thares Srisatit
Keyword(s):  
Agricultural Soils ◽  
Ground Level ◽  
Arsenic Contamination ◽  
Soil Samples ◽  
Arsenic Content ◽  
Spatial Anisotropy ◽  
Raster Maps ◽  
National Environment ◽  
High Arsenic ◽  
Overlay Approach

Fuzzy overlay approach on three raster maps including land slope, soil type, and distance to stream can be used to identify the most potential locations of high arsenic contamination in soils. Verification of high arsenic contamination was made by collection samples and analysis of arsenic content and interpolation surface by spatial anisotropic method. A total of 51 soil samples were collected at the potential contaminated location clarified by fuzzy overlay approach. At each location, soil samples were taken at the depth of 0.00-1.00 m from the surface ground level. Interpolation surface of the analysed arsenic content using spatial anisotropic would verify the potential arsenic contamination location obtained from fuzzy overlay outputs. Both outputs of the spatial surface anisotropic and the fuzzy overlay mapping were significantly spatially conformed. Three contaminated areas with arsenic concentrations of7.19±2.86,6.60±3.04, and4.90±2.67 mg/kg exceeded the arsenic content of 3.9 mg/kg, the maximum concentration level (MCL) for agricultural soils as designated by Office of National Environment Board of Thailand. It is concluded that fuzzy overlay mapping could be employed for identification of potential contamination area with the verification by surface anisotropic approach including intensive sampling and analysis of the substances of interest.

Assessment of arsenic contamination in soils and waters in some areas of Bangladesh

2000 ◽  
Vol 42 (7-8) ◽  
pp. 185-192 ◽  
Author(s):  
M. B. Alam ◽  
M. A. Sattar
Keyword(s):  
Water Samples ◽  
Arsenic Contamination ◽  
Soil Samples ◽  
Arsenic Content ◽  
Molybdenum Blue

The soil samples and tubewell waters were collected from 25 locations representing five thanas of four districts of Bangladesh. The soils were collected from three depths viz. 0–15, 15–30 and 30–45 cm and tubewell waters were collected from same locations. The arsenic content of soils and waters were detected by Molybdenum blue method. The arsenic content in soils ranged from 1.27–56.68, 3.18–54.77, 1.27–50.95, 1.27–39.48 and 3.18–35.66 ppm in Chapainawabganj Sadar, Kustia Sadar, Bera, Ishurdi and Sarishabari thanas, respectively. Out of a total of 25 samples arsenic was detectable for 18 samples at 0–15 cm, 17 samples at 15–30 cm and 15 samples at 30–45 cm depth. One sample at 0–15 cm, 7 samples at 15–30 cm and 4 samples at 30–45 cm depth were found to be slightly contaminated. In tubewell water the arsenic content measured from Chapainawabganj Sadar, Kustia Sadar, Bera, Ishurdi and Sarishabari thanas were ranged 0.010–0.056, 0.010–0.071, 0.010–0.056, 0.010–0.056 and 0.025–0.071 ppm, respectively. Out of 25 water samples 17 contained variable amounts of arsenic where 6 sampling sites contained arsenic levels above 0.05 ppm, and these sites are Rajarampur of Chapainawabganj Sadar thana, Jordaha of Bera thana, Courtpara of Kustia Sadar thana, Nalgari of Ishurdi thana and Ijarapara of Sarisabari thana. Arsenic contained in soils was positively correlated with arsenic content in waters.

scholarly journals Describing Phosphorus Sorption Processes on Volcanic Soil in the Presence of Copper or Silver Engineered Nanoparticles

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 373
Author(s):  
Jonathan Suazo-Hernández ◽  
Erwin Klumpp ◽  
Nicolás Arancibia-Miranda ◽  
Patricia Poblete-Grant ◽  
Alejandra Jara ◽  
...  
Keyword(s):  
Organic Matter ◽  
Crop Production ◽  
Agricultural Soils ◽  
Ph Value ◽  
Consumer Products ◽  
Soil Samples ◽  
Engineered Nanoparticles ◽  
P Availability ◽  
Agricultural Crop ◽  
Phosphorus Sorption

Engineered nanoparticles (ENPs) present in consumer products are being released into the agricultural systems. There is little information about the direct effect of ENPs on phosphorus (P) availability, which is an essential nutrient for crop growthnaturally occurring in agricultural soils. The present study examined the effect of 1, 3, and 5% doses of Cu0 or Ag0 ENPs stabilized with L-ascorbic acid (suspension pH 2–3) on P ad- and desorption in an agricultural Andisol with total organic matter (T-OM) and with partial removal of organic matter (R-OM) by performing batch experiments. Our results showed that the adsorption kinetics data of H2PO4− on T-OM and R-OM soil samples with and without ENPs were adequately described by the pseudo-second-order (PSO) and Elovich models. The adsorption isotherm data of H2PO4− from T-OM and R-OM soil samples following ENPs addition were better fitted by the Langmuir model than the Freundlich model. When the Cu0 or Ag0 ENPs doses were increased, the pH value decreased and H2PO4− adsorption increased on T-OM and R-OM. The H2PO4− desorption (%) was lower with Cu0 ENPs than Ag0 ENPs. Overall, the incorporation of ENPs into Andisols generated an increase in P retention, which may affect agricultural crop production.

scholarly journals Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

2009 ◽  
Vol 66 (3) ◽  
pp. 361-367 ◽  
Author(s):  
Gustavo Souza Valladares ◽  
Otávio Antônio de Camargo ◽  
José Ruy Porto de Carvalho ◽  
Alessandra Maria Cia Silva
Keyword(s):  
Heavy Metals ◽  
Principal Component Analysis ◽  
Agricultural Soils ◽  
Principal Component ◽  
Component Analysis ◽  
Soil Samples ◽  
Metal Concentrations ◽  
Zn Content ◽  
Heavy Metals In Soils ◽  
Cu And Zn

Agricultural management with chemicals may contaminate the soil with heavy metals. The objective of this study was to apply Principal Component Analysis and geoprocessing techniques to identify the origin of the metals Cu, Fe, Mn, Zn, Ni, Pb, Cr and Cd as potential contaminants of agricultural soils. The study was developed in an area of vineyard cultivation in the State of São Paulo, Brazil. Soil samples were collected and GPS located under different uses and coverings. The metal concentrations in the soils were determined using the DTPA method. The Cu and Zn content was considered high in most of the samples, and was larger in the areas cultivated with vineyards that had been under the application of fungicides for several decades. The concentrations of Cu and Zn were correlated. The geoprocessing techniques and the Principal Component Analysis confirmed the enrichment of the soil with Cu and Zn because of the use and management of the vineyards with chemicals in the preceding decades.

scholarly journals Influence of long-term mineral fertilization on metal contents and properties of soil samples taken from different locations in Hesse, Germany

SOIL ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 23-33 ◽  
Author(s):  
S. Czarnecki ◽  
R.-A. Düring
Keyword(s):  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Agricultural Soils ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Exchange Capacity ◽  
Soil Samples ◽  
Residual Effects ◽  
Metal Contents

Abstract. Essential and non-essential metals occur in soils as a result of weathering, industrial processes, fertilization, and atmospheric deposition. Badly adapted cultivation of agricultural soils (declining pH value, application of unsuitable fertilizers) can enhance the mobility of metals and thereby increase their concentrations in agricultural products. As the enrichment of metals in soils occurs over long time periods, monitoring of the long-term impact of fertilization is necessary to assess metal accumulation in agricultural soils. The main objective of this study was to test the effects of different mineral fertilizer variations on soil properties (pH, Corg, and cation exchange capacity (CEC)) and pseudo-total and mobile metal contents of soils after 14 years of fertilizer application and to determine residual effects of the fertilization 8 years after cessation of fertilizer treatment. Soil samples were taken from a field experiment which was carried out at four different locations (210, 260, 360, and 620 m above sea level) in Hesse, Germany. During the study, a significant decrease in soil pH and an evident increase in soil carbon content and cation exchange capacity with fertilization were determined. The CEC of the soils was closely related to their organic C contents. Moreover, pseudo- and mobile metal (Cd, Cu, Mn, Pb, Zn) contents in the soils increased due to application of 14 years of mineral fertilizer treatments (N, P, NP, and NPK) when compared to control plots. Eight years after termination of the fertilization in the soil samples taken from soil profiles of the fertilized plots (NPK) for monitoring the residual effects of the fertilizer application, a decrease of 82.6, 54.2, 48.5, 74.4, and 56.9% in pseudo-total Cd, Cu, Mn, Pb, and Zn contents, respectively, was determined.

scholarly journals Arsenic and heavy metal concentrations in agricultural soils in South Savo province

2002 ◽  
Vol 11 (4) ◽  
pp. 285-300 ◽  
Author(s):  
V. MÄNTYLAHTI ◽  
P. LAAKSO
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Agricultural Soils ◽  
Mineral Soil ◽  
Soil Samples ◽  
Potential Hazard ◽  
Metal Concentrations ◽  
Limit Values ◽  
Heavy Metal Concentrations ◽  
Target Values

Increasing concentrations of arsenic and heavy metals in agricultural soils are becoming a growing problem in industrialized countries. These harmful elements represent the basis of a range of problems in the food chain, and are a potential hazard for animal and human health. It is therefore important to gauge their absolute and relative concentrations in soils that are used for crop production. In this study the arsenic and heavy metal concentrations in 274 mineral soil samples and 38 organogenic soil samples taken from South Savo province in 2000 were determined using the aqua regia extraction technique. The soil samples were collected from 23 farms.The elements analyzed were arsenic, cadmium, chromium, copper, mercury, nickel, lead and zinc. The median concentrations in the mineral soils were:As 2.90 mg kg –1, Cd 0.084 mg kg –1, Cr 17.0 mg kg –1, Cu 13.0 mg kg –1, Hg 0.060 mg kg –1, Ni 5.4 mg kg –1, Pb 7.7 mg kg –1, Zn 36.5 mg kg –1. The corresponding values in the organogenic soils were:As 2.80 mg kg –1, Cd 0.265 mg kg –1, Cr 15.0 mg kg –1, Cu 29.0 mg kg –1, Hg 0.200 mg kg –1, Ni 5.9 mg kg –1, Pb 11.0 mg kg –1, Zn 25.5 mg kg –1. The results indicated that cadmium and mercury concentrations in the mineral and organogenic soils differed. Some of the arsenic, cadmium and mercury concentrations exceeded the normative values but did not exceed limit values. Most of the agricultural fields in South Savo province contained only small amounts of arsenic and heavy metals and could be classified as “Clean Soil”. A draft for the target values of arsenic and heavy metal concentrations in “Clean Soil” is presented.;

scholarly journals Spectroscopic Diagnosis of Arsenic Contamination in Agricultural Soils

Sensors ◽  
2017 ◽  
Vol 17 (5) ◽  
pp. 1036 ◽  
Author(s):  
Tiezhu Shi ◽  
Huizeng Liu ◽  
Yiyun Chen ◽  
Teng Fei ◽  
Junjie Wang ◽  
...  
Keyword(s):  
Agricultural Soils ◽  
Arsenic Contamination

scholarly journals Determination and distribution of pesticides and antibiotics in agricultural soils from northern China

RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 15686-15693 ◽  
Author(s):  
Lixiang Pan ◽  
Xiaoxiao Feng ◽  
Meng Cao ◽  
Shiwen Zhang ◽  
Yuanfang Huang ◽  
...  
Keyword(s):  
Agricultural Soils ◽  
Northern China ◽  
Soil Samples ◽  
Different Types

Different types of soil samples from a typical farmland in northern China were collected and evaluated for the presence of the pesticides and antibiotics.

scholarly journals A Polyphasic Approach Aids Early Detection of Potentially Toxigenic Aspergilli in Soil

2019 ◽  
Vol 7 (9) ◽  
pp. 300
Author(s):  
Giovanni Cafà ◽  
Benedetta Caggiano ◽  
Michael A. Reeve ◽  
Hamzah Bhatti ◽  
Sabyan F. Honey ◽  
...  
Keyword(s):  
Early Detection ◽  
Agricultural Soils ◽  
Operational Taxonomic Unit ◽  
Aflatoxin Production ◽  
Soil Samples ◽  
Corn Cobs ◽  
Flight Mass Spectrometry ◽  
Surveillance Programs ◽  
One Year ◽  
Low Coverage

Key chili and maize growing areas of Pakistan were selected for a focused baseline study of the levels of Aspergillus spp. Investigations were undertaken using a combination of molecular and culture-based techniques. Samples investigated included soil samples, one-year-old corn cobs, and fresh chili from selected locations. Aspergillus strains obtained from corn cobs were screened using coconut milk agar, resulting in one strain that was positive for aflatoxin production. Whole genome sequencing (WGS) with low coverage techniques were employed to screen the isolates for differences in the ribosomal RNA gene cluster and mitochondrial genome, with the aflatoxigenic strain proving to have a distinctive profile. Finally, strains were subjected to matrix-assisted laser-desorption and ionization time-of-flight mass spectrometry (MALDI-ToF-MS) in order to obtain a proteomic ‘fingerprint’ which was used to distinguish the aflatoxigenic strain from the other isolates. The next generation sequencing (NGS) study was broadened to incorporate metabarcoding with ITS rRNA for determining the microbial biodiversity of the soil samples and presumptive screening for the presence of aflatoxigenic strains. Using information gleaned from the WGS results, a putative aflatoxigenic operational taxonomic unit (OTU) was observed in four of the 15 soil samples screened by metabarcoding. This method may have beneficial applications in early detection and surveillance programs in agricultural soils and commodities.

Arsenic removal from highly-acidic wastewater with high arsenic content by copper-chloride synergistic reduction

Chemosphere ◽  
2020 ◽  
Vol 238 ◽  
pp. 124675 ◽  
Author(s):  
An Wang ◽  
Kanggen Zhou ◽  
Xuekai Zhang ◽  
Dingcan Zhou ◽  
Changhong Peng ◽  
...  
Keyword(s):  
Arsenic Removal ◽  
Copper Chloride ◽  
Arsenic Content ◽  
Acidic Wastewater ◽  
High Arsenic

scholarly journals Synthetic Pyrethroids Pesticide Residues in Soils and Drinking Water Sources from Cocoa Farms in Ghana

2016 ◽  
Vol 5 (1) ◽  
pp. 60 ◽  
Author(s):  
Benedicta Y. Fosu-Mensah ◽  
Elvis D. Okoffo ◽  
Michael Mensah
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Pesticide Residues ◽  
Agricultural Soils ◽  
Water Source ◽  
Soil Samples ◽  
Synthetic Pyrethroids ◽  
Lambda Cyhalothrin ◽  
Cocoa Farm ◽  
Soil And Water

The contamination of pesticides in 32 soils and 64 drinking water samples was investigated from cocoa farms in the Dormaa West District of Ghana to assess pollution status. A total of nine synthetic pyrethroids pesticides were measured with a high resolution Varian CP-3800 Gas Chromatograph equipped with <sup>63</sup>Ni electron capture detector (ECD). Eight synthetic pyrethroid residues namely fenvalerate, deltamethrin, cypermethrin, bifenthrin, permethrin, lambda-cyhalothrin, allethrin and cyfluthrin were detected with lambda-cyhalothrin and allethrin occurring most frequently in soil and water respectively. The concentrations of synthetic pyrethroids residues in the soil samples were in the ranges of; 0.02-0.03 mg/kg for lambda-cyhalothrin, 0.010-0.02 mg/kg for allethrin, 0.010-0.04 mg/kg for cyfluthrin, &lt;0.01-0.04 mg/kg for cypermethrin, 0.02-0.06 mg/kg for deltamethrin, and &lt;0.01-0.03 mg/kg for bifenthrin. Similarly, the synthetic pyrethroids residues in the water samples were in the ranges of; 0.01-0.05 µg/L for allethrin, 0.01-0.04 µg/L for fenvalerate, 0.01-0.04 µg/L for cypermethrin and 0.01-0.05 µg/L for deltamethrin. The concentrations of synthetic pyrethroids pesticide residues recorded in the soil samples analysed were generally below and within their respective US MRLs for agricultural soils, except the mean concentration values recorded for pesticides such as lambda-cyhalothrin at Diabaa (S2) and Krakrom (S3), allethrin at Diabaa (S2) and deltamethrin at Kwakuanya (S4), which were above their respective US MRLs for agricultural soils. The trends of synthetic pyrethroids pesticide residues in the water samples analysed from the various distances to cocoa farms decreased with an increase of water source to cocoa farm (ranking; 0-15m&gt;16-30m&gt;above 30m). All synthetic pyrethroids pesticide residues recorded in the water samples were below and within their respective WHO MRLs for drinking water except for deltamethrin, which exceeded the WHO MRL at Kwakuanya (S4) at distance 0-15m from a cocoa farm. The presence of synthetic pyrethroids residues in the soil and water samples analysed is an indication of the use of the pesticide by cocoa farmers in the study area. The routine monitoring of pesticide residues in the study area is necessary for the control and reduction of environmental pollution.

Sign in / Sign up

Export Citation Format

Share Document