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 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.

Source of Heavy Metals in Sludge of Huoshaogou Wetland Park in Xining

2014 ◽  
Vol 665 ◽  
pp. 412-415 ◽  
Author(s):  
Yu Zhang ◽  
Hua Jin Chang ◽  
Hong Zhou Liu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Human Activities ◽  
Surface Soil ◽  
Soil Samples ◽  
Surface Soils ◽  
Zn Concentration ◽  
Source Assessment ◽  
Cr Concentration ◽  
Cu And Zn

Heavy metals (including As, Cd, Pb, Ti, V, Cr, Mn, Ni, Cu and Zn) concentration analysis for soil samples from Westhill (near Huoshaogou) and source assessment of heavy metals in sludge from Huoshaogou wetland park in Xining city (China) have been carried out. Results show that Cd, Pb, Cr and Zn concentrations in the surface soil are much higher than that in the unpolluted soil from Westhill, and Cr concentration in the sludge from Huoshaogou wetland reaches 12 times and 6 times more than that in the unpolluted and in the surface soils from Westhill, respectively. The results reveal that descent of dust contributed Cd, Pb, Cr and Zn to the wetland, and wastewater mainly contributed Cr to the wetland. In order to protect the environment, human activities and heavy metal discharge should be limited effectively.

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.

City Soil Pollution Degree of Heavy Metals

2014 ◽  
Vol 955-959 ◽  
pp. 1107-1111
Author(s):  
Shu Hong Si
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Surface Soil ◽  
Gps Data ◽  
Data Application ◽  
Heavy Metals Pollution ◽  
Functional Areas ◽  
The City

This paper is mainly based on a city in surface soil heavy metal pollution on the measured GPS data,Application of the Nemeroww method to study the city all functional areas of the 8 kinds of heavy metals pollution degree.

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 Mangroves Sediment Ability as a Traps of Heavy Metal Chrome in Tukad Mati Estuary, Bali – Republic of Indonesia

2017 ◽  
Vol 10 (4) ◽  
pp. 1 ◽  
Author(s):  
I Gusti Ngurah Putra Dirgayusa ◽  
Yulianto Suteja ◽  
Ida Bagus Putu Adnyana
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Chromium Content ◽  
Oxygen Demand ◽  
Chromium Concentration ◽  
Mangrove Sediments ◽  
Natural Sediment ◽  
Average Value ◽  
Canadian Council ◽  
Ministerial Decree

Tukad Mati is one of the ten rivers has decreased due to the development of water quality screen printing and textile industries. Monitoring of the waters of the Tukad Mati has so far been confined to the Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) only. Whereas monitoring should be carried out thoroughly considering the heavy metal content is also harmful to users of water resources in Tukad Mati. One of the natural buffer of heavy metals in sediments of mangrove waters is a final media gathering all kinds of heavy metals waters, while mangrove itself is a natural sediment trap.Therefore, the heavy metals in the waters will experience the highest accumulation in mangrove sediments. The purpose of this study is as early monitoring to detect the chromium metal in waters and sediments in Tukad Mati estuary. In this study conducted in on-site data measurements in the form of data pH, temperature, salinity, disolved oxygen (DO) and discharge water. measurement of chromium content in the water and sediment of Tukad Mati estuary using AAS method.The study showed that from the results of on-site data measurements in estuary of Tukad Mati showed that the average value of salinity, pH, temperature and Dissolved Oxygen still meet quality ministerial decree of the environment of Indonesian Republic no 51 in 2004 for biota and marine tourism. The measurement results also showed that chromium content in water an average of 0.19 (mg/l) and exceed the ministerial decree of the environment of Indonesian Republic no 51 in 2004. Mangrove and non-mangrove sediments in Tukad Mati estuary have been exceed the Lowest Effect Level for organism and some sediment contaminated with chromium and passed the quality standards According to Canadian Council of Ministers of Environmental in 2000. Chromium concentration in sediment higer than water allegedly caused by heavy metals that tends to bind and fall to the bottom waters along the process of sedimentation.

scholarly journals The system Tetrabothrius bassani (Tetrabothriidae)/Morus bassanus (Sulidae) as a bioindicator of marine heavy metal pollution

2013 ◽  
Vol 58 (1) ◽  
Author(s):  
Paula Mendes ◽  
Catarina Eira ◽  
José Vingada ◽  
Jordi Miquel ◽  
Jordi Torres
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Lead Concentration ◽  
Kidney Tissue ◽  
Pectoral Muscle ◽  
Bioaccumulation Factor ◽  
Icp Ms ◽  
Kidney Liver

AbstractHelminths are known to accumulate higher amounts of certain elements than their hosts. The present study assesses the accumulation of heavy metals in Tetrabothrius bassani and in its host, the Atlantic gannet (Morus bassanus) found dead due to bycatch along the seashore in the centre of Portugal. Samples of kidney, liver and pectoral muscle of 23 infected gannets, as well as specimens of T. bassani were analysed for As, Cd, Cr, Cu, Hg, Mn, Pb, Se and Zn by ICP-MS. The evidenced lower concentrations of Cr and Pb in tissues of gannets in comparison to an earlier study performed in the same area may reveal a change in the diet of M. bassanus between both study periods. The highest bioaccumulation factor was obtained for Cd with a 12.7-times higher concentration in the cestode than in gannet muscle. Lead concentration in T. bassani was 6.9-times higher than in kidney tissue, 8.5-times higher than in muscle and 9.5-times higher than in liver of M. bassanus. The cestode/seabird system T. bassani/M. bassanus can be considered a promising bioindicator system to monitor environmental Cd and Pb pollution in marine ecosystems.

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. 

scholarly journals INVESTIGATION OF HEAVY METAL CONTAMINATION IN THE ROADSIDE SOIL AT MORENA DISTRICT IN INDIA

2016 ◽  
Vol 4 (11) ◽  
pp. 72-76
Author(s):  
Laxmi Kant Sharma
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Contamination ◽  
Surface Soil ◽  
Soil Samples ◽  
Roadside Soil ◽  
Degree Of Contamination ◽  
Vehicular Pollution ◽  
Definite Indicator ◽  
High Degree

Pollution of natural environment due to release of heavy metals from various sources is a widespread problem throughout the world. This study explains the effect of heavy metal contaminants in Roadside soil of Morena district. Twelve air dried surface soil samples were collected from 50cm – 1m (point A) and twelve from 30m (point B) away from the roadside along a road with a distance of 50 km. Heavy metals were found in both points with highest concentration at 50cm – 1m (point A). Roadside soil is a definite indicator of vehicular pollution from where the high degree of contamination, is expected. The presence of heavy metals like Cu, Cr, Fe, Pb, Zn and Mn in the roadside soil was also considerable.

scholarly journals Distribution and Source of Pb in Urban Topsoil

2020 ◽  
Vol 204 ◽  
pp. 01010
Author(s):  
Yuhu Luo ◽  
Nan Lu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Statistical Analysis ◽  
Human Activities ◽  
Surface Soil ◽  
Lead Pollution ◽  
Industrial Emissions ◽  
Multivariate Statistical ◽  
The Status ◽  
Urban Topsoil

In the process of industrialization and urbanization, human activities have caused more and more heavy metal lead to enter the surface soil, causing harm to the health of residents. Analysis of the status of lead pollution in urban surface soils in China found that lead pollution in most cities currently exceeds regional background values. The sources of heavy metals in cities mainly include transportation, industrial emissions, and human activities. At present, the methods for determining sources include three methods: multivariate statistical analysis, geographic information systems, and isotope tracing.

Sign in / Sign up

Export Citation Format

Share Document