scholarly journals Heavy metals in pastureland soils situated in A Pastoriza (NW Spain) treated with cattle slurry and NPK fertilizers

2015 ◽  
Vol 5 ◽  
Author(s):  
Natalia Seco-Reigosa ◽  
María J. Fernández-Sanjurjo ◽  
Avelino Núñez-Delgado ◽  
Laura Cutillas-Barreiro ◽  
Antía Gómez-Armesto ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Forest Soils ◽  
Soil Depth ◽  
Available P ◽  
Cattle Slurry ◽  
Nw Spain ◽  
Npk Fertilizers ◽  
Pasture Production ◽  
Total Concentrations

In Galicia (NW Spain), pasturelands cover a broad extension and are mainly used to feed cattle. Farms are managed in an intensive manner, using cattle slurry and inorganic fertilizers to increase pasture production, but also increasing risks of heavy metal pollution. In this work we studied the influence of fertilization practices on total concentrations and in-depth distribution of heavy metals and related elements (As, Cd, Cr, Cu, Mn, Ni, Pb and Zn) in two forest soils (SN1, SN2) and five pastureland soils (P1-P5) fertilized with cattle slurry and NPK, in a broadly exploded farmland area (A Pastoriza, Lugo). Soils SN2 and P4 were developed over slate, whereas soils SN1, P1, P2, P3 and P5 evolved on Candana quartzite. Forest soils presented acid pH (4.58-4.68), high Al saturation (75-90%), and low available P concentration (4.78-11.96 mg kg<sup>-1</sup>), whereas those parameters exhibited better scores in the pastureland soils, due to previous amendment and fertilization practices, thus giving pH 5.17-7.02, Al saturation 0.58-59.24%, and available P 5.24-42.07 mg kg<sup>-1</sup>. Regarding heavy metals, soil depth did not affect significantly to total concentrations, contrary to that happening with parent material, with higher As, Cu, Fe, and Ni concentrations found in soils over slate (possibly due to the presence of pyritic materials). In most cases, heavy metal total concentrations were lower than that considered as reference background levels for soils developed over each of the parent materials, and were always lower than that considered phyto-toxic. In this study, natural soils usually presented heavy metal total contents similar or even higher than that of the fertilized soils (unless Zn in the P4 pastureland), thus indicating that the spread doses of fertilizers did not influence significantly their concentration levels.

scholarly journals Seasonal variation in heavy metals of forest soils of Dehradun

2021 ◽  
pp. 104-107
Author(s):  
RAJDEO KUMAR
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Forest Soils ◽  
Surface Soil ◽  
Lead Concentration ◽  
Chromium Content ◽  
Soil Depth ◽  
Cadmium Concentration ◽  
Surface Soils ◽  
Concentration Maximum

The present study was carried out to characterise the load of heavy metal in the forest soils of Dehradun during various seasons. Surface (0-15 cm) and sub surface (15-30 cm) soil samples were collected from four different sites during summer, monsoon and winter seasons. The results revealed that the maximum Cadmium concentration was recorded in surface (0-15cm) soils and minimum in sub-surface soils (15-30cm). The Cd concentration maximum during summer followed by winter and monsoon. Similar pattern of distribution of chromium was recorded in surface soil. The Chromium content was observed in the order of winter>summer>monsoon in surface soil and summer>winter>monsoon in sub-surface soils. The concentration of Copper in surface soils varied from 3.19 to 0.52mgkg-1 while in sub-surface soil, it varied between 2.25 and 0.57 mg kg-1. The copper concentration was maximum during winter followed by summer and monsoon. The lead concentration was recoeded maximum at site-II and minimum at site-IV whereas, it was recorded maximum during winter and minimum during monsoon. In general, all the heavy metals were found to decrease with soil depth. The concentrations of heavy metal were quite low but their presence in sites makes them potential to increase toxicity in future owing to more environmental degradation.

scholarly journals Assessment of Physicochemical Properties and Heavy Metal Load in Soils of Ebocha Gas Flaring Site in Rivers State, Nigeria

2020 ◽  
pp. 1-9
Author(s):  
O. I. Achieche ◽  
O. O. Njoku ◽  
C. M. Duru ◽  
M. O. Nwachukwu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Physicochemical Properties ◽  
Negative Impact ◽  
Soil Depth ◽  
Calcium Content ◽  
Gas Flaring ◽  
Metal Load ◽  
Acidic Nature ◽  
Rivers State

The negative impact of gas flaring on the environment cannot be overemphasised. This study assessed the effect of gas flaring on the physicochemical properties and heavy metal contents in soils of Ebocha gas flaring site in Rivers State. It involved the assessment of various distances from gas flaring point to 200 meters away (50 m, 100 m, 150 m, and 200 m) which represents the extent of gas flared pollution on soils to determine the physicochemical properties and heavy metal load. The gas flaring significantly decreased soil organic carbon and calcium content when compared with non-gas flaring polluted soils. Soil acidity increased, soil exchangeable ions decreased. N, P and K were altered in gas flared soils when compared to the controls. There were detrimental effects on soils physicochemical properties. Heavy metals observed were Cd (Cadmium), Ni (Nickel), As (Arsenic), Cr (Chromium), while Pb (Lead) was not detected. The concentration of heavy metals in gas flared soils decreases down soil depth from 0-15 cm to 45-60 cm respectively. The gas flaring extremely caused the acidic nature of gas flared soils. Coefficient of variation (CV) in percentage shows significant increase in acidic nature of the gas flared soils when compared with the control soils.

scholarly journals Assessment of Heavy Metal Pollution in Soils from Farms in the Vicinity of Durumi Quarry Site in Mpape, Abuja Nigeria

2018 ◽  
Vol 13 (3) ◽  
pp. 360-373
Author(s):  
FATIMAH OYENIKE OJO ◽  
TUKURA BITRUS WOKHE ◽  
MADU PASCAL CHIMA
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Rainy Season ◽  
Soil Depth ◽  
Chemical Properties ◽  
Dry Season ◽  
Soil Samples ◽  
World Health

Seasonal concentrations of eight total and bioavailable heavy metals (Cr, Cu, Cd, Zn, Mn, Ni, Pb an Fe), along with some physico chemical properties of soil in vegetable farms around the rock quarry in Durumi, Abuja was assessed to know the level of heavy metal pollution of the soil. Control and actual soil samples were collected from depths of 0.0 -5.0cm and 5.0 - 10.0cm during dry and rainy seasons. Heavy metal concentrations varied inconsistently in samples and control. Dry season levels of Zn(5.20mg/kg), Mn(19.44mg/kg), Ni(1.69mg/kg) and Pb(4.56mg/kg) and rainy season levels of Zn (0.26mg/kg), Pb(22.53mg/kg) at soil depth of 0.0 - 5.0cm, and dry season levels of Zn(1.19mgkg) and Ni(1.62mg/kg) along with rainy season levels of Cr (0.44mg/kg), Cd (0.06mg/kg), Zn(0.09mg/kg) and Fe(6.74mg/kg) at soil depth of 5.0 -10.0cm were all higher in samples than controls. However, seasonal mean total heavy metals in the soil samples were lower than the Maximum Allowable Limits (mg/Kg) for World Health Organization (WHO) and Food and Agriculture Organization (FAO). During dry season, heavy metals that indicated anthropogenic content, had anthropogenic levels that ranged in the order: Cd(16.67%) < Cu(54.17%)

scholarly journals Microbiology and Heavy Metal Content of Wetlands Impacted by Crude Oil Pollution in Rivers State, Southern Nigeria

2021 ◽  
pp. 53-63
Author(s):  
Mebom Princess Chibuike ◽  
N. David Ogbonna ◽  
Williams Janet Olufunmilayo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Concentration ◽  
Microbial Population ◽  
Soil Depth ◽  
Heavy Metal Concentration ◽  
Soil Samples ◽  
Population Diversity ◽  
Wetland Soil ◽  
Subsurface Soil

Wetland soils constitute vast, under-exploited and sometimes undiscovered ecologies in many countries of the World, including Nigeria. A total of 54 wetland soil samples including surface and subsurface soil at depths of 0-15 cm and 15-30 cm were collected using a sterile hand auger for a period of three months between August and October and subjected to standard and analytical microbiological procedures. The wetland soil samples were further subjected to atomic absorption spectroscopy (AAS) to check for presence and concentration of heavy metals. Results obtained showed that apart from heterotrophic bacterial and fungal counts, hydrocarbon utilizing bacteria (HUB) counts were higher in the surface soil ranging from 12.06±3.43bX107 cfu/g at Iwofe to 6.19±2.67aX107 cfu/g at Chokocho while subsurface soil had HUB ranging from 8.91±6.67aX103 cfu/g at Eagle Island to 4.93±3.95aX103cfu/g at Chokocho. Heavy metals such as Fe, Pb, Cd and Ni were recorded in concentrations above FEPA permissible limit in the surface and subsurface soil across the three wetlands. The heavy metal concentration in each wetland however, decreased with an increase in soil depth. According to literatures, elevated levels of heavy metals in soils decrease microbial population, diversity and activities. However, the microbial population in this study increased with increasing heavy metal concentration which indicates that the microbes can tolerate or utilize heavy metals in their systems; as such can be used for bioremediation of heavy metal polluted soils. 

Evaporation and Stabilization of Heavy Metals with Colloid/Interface Properties in EAF Dust-Clay Bodies

2007 ◽  
Vol 544-545 ◽  
pp. 569-572
Author(s):  
Young Min Wie ◽  
Ki Gang Lee
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Ion ◽  
Sintering Temperature ◽  
Clay Content ◽  
Raw Material ◽  
Colloid Interface ◽  
Mixing Ratios ◽  
Eaf Dust ◽  
Total Concentrations

To recycling the EAF dust as a ceramic raw material, the leaching concentrations of heavy metals (Zn, Pb, Cr, Cd) were analyzed with various pH and mixing ratios for EAF dust-clay bodies. The evaporation amounts of the some heavy metals were evaluated by measuring their total concentrations in the sintered bodies of EAF dust-clay mixtures with various mixing ratio and sintering temperature. TCLP test was conducted for evaluating the chemical stabilities of the heavy metal elements. The heavy metals in EAF dust are 'amphoteric metal' and leached a little at pH10. The leaching concentrations of heavy metal ion were effectively decreased by the formation of PSHP when adding the clay to the EAF dust and controlling the pH of the slurry at 12. Evaporation of heavy metal components were increased with increasing the sintering temperature and the contents of EAF dust. The leaching concentrations of heavy metal components were decreased with increasing the clay content and temperature.

scholarly journals INITIAL SURVEY OF HEAVY METAL CONCENTRATIONS IN PADDY SOIL AND RICE PLANTS (Oryza sativa L.) NEAR AND FAR FROM OPEN LANDFILL IN SOUTHERN VIET NAM

2020 ◽  
Vol 1 (38) ◽  
pp. 48-59
Author(s):  
Giao Thanh Nguyen
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Paddy Soil ◽  
Oryza Sativa L ◽  
Soil Depth ◽  
Soil Layer ◽  
Soil Samples ◽  
Viet Nam ◽  
Rice Plants ◽  
Canadian Council

The concentrations of heavy metals in soil and rice plants around the landfill area in Dong Thang commune, Co Do District, Can Tho City, Viet Nam needed to be assessed for environmental pollution. Soil samples were collected from four sites (three sites S1, S2, S3 near and one site S4 far away from the landfill area) at soil depths of 0 to 25 and 25 to 50 cm. The rice and soil samples were simultaneously collected at the same locations for analysis of heavy metals. The heavy metals Mn, Zn, Cu, Cr, Ni, Pb and Cd were analyzed using atomic absorption spectroscopy. Six heavy metals including Mn, Zn, Cu, Cr, Ni, and Pb were detected and ranged from 12.3 to 291.0 mg/L for the top soil and 11.2 to 370.0 mg/L for 25 to 50 cm soil layer. However,  concentrations of Ni, Cu, and Pb in soil tended to decrease while Mn, Zn and Cr tended to increase with an increase of soil depth near the landfill. A similar tendency of heavy metal concentration with depth was found at S4 except for Cu. The decreasing order of the selected heavy metals concentrations in the two soil layers at near the landfill was Mn>Zn>Ni>Cr>Cu>Pb and these concentrations of heavy metals were within the limits of QCVN 03-MT: 2015/BTNMT and Canadian Council of Ministers of the Environment (CCME, 2007). The result of the bioaccumulation factor (BAF) in rice plants showed that the selected heavy metals were accumulated more in the root rather than the stem-leaf and grain. Mn was accumulated dominantly in both root and stemleaf, while Zn, Cu, and Pb only accumulated in the root. Thus, result of this study suggests that is essential to collect and treat the heavy metals in the leachate properly to minimize the distribution of heavy metals to the paddy soil environment.

scholarly journals INTERACTION OF HEAVY METALS IN THE SOIL-PLANT SYSTEM OF URBAN GARDENS IN ATHENS, GREECE

2017 ◽  
Vol 50 (4) ◽  
pp. 2182
Author(s):  
A. Kazantzoglou ◽  
A. Argyraki ◽  
S. Papageorgiou ◽  
D. Fadel
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Rhizosphere Soil ◽  
Complex Mechanism ◽  
Aqua Regia ◽  
Heavy Metal Concentrations ◽  
Elemental Concentrations ◽  
Normal Ranges ◽  
Micronutrient Uptake ◽  
Total Concentrations

Preliminary data on the interaction between soil and edible plants with respect to heavy metal concentrations in Athens, Greece are presented. Concentration ranges of Zn, Cu, Ni, Cr, Co, Mn, Fe, Ba, Pb and Cd in soils and vegetables collected from urban allotments in Athens are determined and assessed taking into account the pseudototal (extracted by aqua regia) and mobilizable (0.43 M acetic acid extractable) concentrations of the elements in the rhizosphere soil of the collected plants as well as the total concentrations in plant tissue. Average elemental concentrations in urban allotments are lower than the ones previously reported for Athens urban soil. No detectable concentrations of the non essential heavy metals Pb and Cd were measured in the studied plants while concentrations of micronutrient elements in plants are within normal ranges. The collected data indicate that previous land use is an important factor controlling heavy metal content in soil and that there is a complex mechanism controlling micronutrient uptake by plants.

Study on the Migration Law of Heavy Metal Elements of Open Pit Waste Dump in Surrounding Soil

2013 ◽  
Vol 361-363 ◽  
pp. 942-948
Author(s):  
Xiao Guang Zhao ◽  
Yang Yang ◽  
Nian Zhang ◽  
Yu Li
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soil Depth ◽  
Quality Standard ◽  
Coal Gangue ◽  
Open Pit ◽  
Horizontal Distance ◽  
Metal Elements ◽  
Heavy Metal Elements ◽  
Migration Law

Taking Shaanxi Tongchuan Cui Home Gully coal gangue as an example. The paper study on the migration law of heavy metal elements of open pit waste dump in surrounding soil by measuring and analyzing the contents of heavy metal elements which are Cu, Cr, Zn, Pb, Cd. The results show that: firstly, the elements contents of Cu, Cr, Zn, Pb are under the national secondary soil quality standard, but the content of Cd is above the national secondary soil quality standard, the single index of Cd is 3.03,this mean that the pollution is serious, so the situation should be pay more attention; secondly the contents of five heavy metals elements mainly accumulated in the range of 0~40cm soil profile in vertical direction, with the soil depth increase ,the contents of five heavy metals decrease, and when the soil depth is under 60m, the pollution reach stable state; thirdly, with the horizontal distance to coal gangue increase, the content of heavy metals which are Cu, Cr, Pb, Cd (soil depth is 5~20cm) decrease, but with the horizontal distance to coal gangue increase ,the content of Zn is much higher than other elements.

scholarly journals Analisis kandungan logam berat aluminium (Al), dan timbal (Pb) pada buah jambu biji varietas kristal (Psidium guajava L.) dan tanah di desa Bumiaji, kota Batu

Kultivasi ◽  
2018 ◽  
Vol 17 (3) ◽  
Author(s):  
Hidayati Karamina ◽  
Ariani Trisna Murti ◽  
Tri Mudjoko
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Soil Depth ◽  
Organic Fertilizer ◽  
Psidium Guajava ◽  
Critical Threshold ◽  
High Dose ◽  
Normal Limits ◽  
Long Duration

Sari. Bumiaji merupakan kawasan wisata yang terletak di Kota Batu. Dengan suhu mencapai 20oC menyebabkan Bumiaji menjadi tempat pengembangan kawasan yang cocok untuk penanaman tanaman hortikultura contohnya jambu biji varietas kristal. Budidaya jambu biji varietas kristal tidak lepas dengan pemeliharaan tanaman dengan cara pengaplikasian pupuk organik maupun anorganik dan pestisida dalam jumlah banyak dan dalam jangka waktu yang panjang. Usaha-usaha peningkatan hasil produksi di atas ternyata dapat memberikan dampak kurang baik bagi lingkungan sekitar khususnya tanah. Adapun tujuan dari penelitian ini adalah mengetahui seberapa besar jumlah logam berat yang berada pada tanah dan buah jambu biji varietas kristal. Penelitian ini menggunakan metode analisis Deskriptif sedangkan untuk metode analisis uji logam berat menggunakan metode Atomic Absorption Spectophotometer (AAS). Hasil dari analisa tanah dengan pengambilan sample 0 – 30 cm dan 30 – 60 cm ditemukan bahwa logam berat Al di berbagai umur tanaman 11 tahun, 6 tahun, 5 tahun melebihi batas normal dan masuk kedalam ambang batas kritis logam berat. Kedua jenis logam berat yaitu Al (Aluminium) dan Pb (Timbal) baik pada umur tanaman 11 tahun, 6 tahun dan 5 tahun memasuki tahapan melebihi batas ambang normal logam berat yang seharusnya berada di bagian buah jambu biji varietas kristalKata kunci: Logam berat, Jambu biji varietas kristal Abstract. Bumiaji region is one of tourist destination in Batu city. This area has temperature around 20 that appropriate for horticulture product including crystal guava. One of cultivation treatment for this commodity is organic fertilizer adding. Another treatment for crystal guava commonly by inorganic fertilizer and pesticide application in high dose on long duration. It will be damage problem for environment especially for soil. Thus, this study was aimed for discovering the amount of the heavy metal Al and Pb contained in the soil and Crystal Guava. This study used descriptive analytic method along with using - Atomic Absorption Spectophotometer (AAS) for testing the heavy metal. The results of this study which concerned on the content of metal of metal Al in 0 – 30 cm and 30 - 60 cm soil depth showed that the highest metal essence was in 11 years, 6 years, 5 years exceeded the normal limits and entered the critical threshold of heavy metals. Both types of heavy metals namely Al (Aluminum) and Pb (Lead) both at the age of 11 years, 6 years and 5 years enter the stage beyond the normal threshold of heavy metals which should be in the crystal variety guavaKeyword : Heavy metal, Crystal Guava

scholarly journals MICRONUTRIENT AND HEAVY METAL CONCENTRATIONS IN FIELD-GROWN LETTUCE

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 496A-496
Author(s):  
Zhongchun Jiang
Keyword(s):  
Heavy Metals ◽  
Plant Physiology ◽  
Heavy Metal ◽  
Field Conditions ◽  
Npk Fertilizers ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Fertilization Rates

Information about micronutrient concentrations of plants in general can be found in botany and plant physiology textbooks, but micronutrient concentrations in field-grown lettuce is hard to find and so are concentrations of heavy metals. Lettuce consumers may be concerned with heavy metal concentrations and information about heavy metal concentrations may help consumers make a choice. This study examined the concentrations of eight micronutrients and five heavy metals in field-grown lettuce with different fertilization programs. Under the field conditions, different NPK fertilizers and fertilization rates did not differ in the leaf concentrations of micronutrients and heavy metals. The overall means of Fe, Na, Mo, and Ni concentrations in the lettuce were 663, 710, 0.9, and 1.9 μg·g–1 of dry leaves, respectively. These values were significantly higher (over 500% greater) than the values found in textbooks for plants in general. Mean Mn, Cu, B, and Zn concentrations were 55.5, 7.3, 23.7, and 28.4 μg·g–1 of dry leaves, respectively, which are in general agreement with textbook values. Mean concentrations of heavy metals Cd, Co, Cr, and Pb were 1.5, 1.0, 2.9, and 4.5 μg·g–1 of dry leaves, respectively, whereas mean Al concentration was 498.5 micrograms per gram of dry leaves. These results indicate that concentrations of some elements in lettuce leaves can be high under certain field conditions. It would be beneficial for lettuce growers and consumers to have this information.

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