scholarly journals Assessing the impact of wastewater irrigation on some toxic heavy metals concentration in grains of Sorghum bicolor

2018 ◽  
Vol 2 (2) ◽  
pp. 111-120
Author(s):  
Mohamed Taher
Keyword(s):  
Heavy Metals ◽  
Sorghum Bicolor ◽  
Wastewater Irrigation ◽  
Toxic Heavy Metals ◽  
The Impact

scholarly journals Assessment of Heavy Metals in Soil, Paddy Straw and SEM analysis of the soil for the impact of wastewater irrigation in Girudhumal Sub basin of Tamil Nadu, India

2018 ◽  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Contamination ◽  
Soil Structure ◽  
Heavy Metal Contamination ◽  
Sem Analysis ◽  
Wastewater Irrigation ◽  
Urban Region ◽  
Paddy Straw ◽  
The Impact

<p>The objective of the study is to determine accumulation and translocation of heavy metals from soil to paddy straw irrigated with urban sewage wastewater in peri-urban region of Girudhumal subbasin area in Madurai. The soil samples were collected in seven locations irrigated with treated and untreated wastewater and analyzed for physical properties like pH, EC, bulk density, soil type, major (N,P,K) and micronutrients (Fe, Mn, Cu, Zn) and heavy metals Ni, Cd, Pb. SEM analysis showed that soil structure is significantly influenced by wastewater irrigation. It confirms that the wastewater irrigation disturbs soil structure and affecting the plant growth in long run.&nbsp; Pb content was higher than the prescribed safe limits in S5 and S6 location, similarly, Ni also was higher than the safe limit in all the locations. Pollution Load Index values are in the range of 0.08-0.56 for all sites, and it indicated that chance of heavy metal contamination is less. The EF values show moderate enrichment to Ni and Zn, Significant enrichment for Cd and Cu, Extremely high for Pb and deficiency for Mn. All these results confirmed that there is no immediate risk of heavy metal pollution, however with respect to Pb and Ni the plant tissues are showing higher values. The transfer factor for heavy metals from soil to paddy straw is less than 0.5 for Cd and for others is more than 0.5 indicated greater chances for heavy metal contamination.</p>

scholarly journals Long-Term Impact of Wastewater Irrigation on Soil Pollution and Degradation: A Case Study from Egypt

Water ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 2245
Author(s):  
Manal A. Alnaimy ◽  
Sahar A. Shahin ◽  
Zuzana Vranayova ◽  
Martina Zelenakova ◽  
Enas Mohamed Wagdi Abdel-Hamed
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Contamination ◽  
Continuous Cultivation ◽  
Heavy Metal Accumulation ◽  
Wastewater Irrigation ◽  
Metal Levels ◽  
The Impact

There is consensus on the impact of wastewater irrigation on soil properties and heavy metal accumulation. The studies that show the impact of temporal changes as a result of different long-term additions of wastewater on the heavy metal accumulation and degradation of soil are extremely limited. This study was carried out to assess heavy metal contamination in soils irrigated with wastewater for more than 30 years in Egypt. A total number of 12 irrigation water samples and 12 soil profiles were collected during 2020 and were chemically characterized. The results showed that soils irrigated with wastewater over the long term contained significantly higher concentrations of heavy metals compared to fields irrigated with fresh water. Heavy metal levels in water and soil samples were within the permissible limits, with the exception of Cd concentration in water (0.03 mg L−1). Continuous cultivation for a long period of time (30 years) using raw urban wastewater application has led to the adverse effect of increasingly available Pb concentration (5.44 mg kg−1). Similar temporal behavior was seen for Cd and Fe, which increased by 0.98 and 11.2 mg kg−1, respectively, after 30 years. The heavy metals in wastewater-irrigated soils significantly increased in clayey soils, as compared to sandy soils irrigated from the same source. Our findings provide important information for decision makers in Egypt and similar countries for the development of a strategy for the use of wastewater in irrigation for sustainable agricultural management.

Determining the Concentration of Some Heavy Metals in Olt River. The Impact of the Heavy Metals from the Waste Waters from Rm. V�lcea Chemical Plant over Natural Emissary River Olt

2008 ◽  
Vol 59 (9) ◽  
Author(s):  
Stefan Valentin Branescu ◽  
Alexandru Popescu ◽  
Daniela Marinescu
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Waste Waters ◽  
Toxic Heavy Metals ◽  
Spectrometry Method ◽  
The Impact

The pollution of water surfaces with heavy metals often has disastrous effects on environment. That is why the determination of heavy metals� concentrations at levels of ppm or ppb is strictly necessary. This paper presents a method for the determination of these components� ( Ni, Cr, Zn, Fe, Cu) distribution on the Olt river course - their impact on the Olt river- as a result of the evacuation of waste water with toxic heavy metals from Rm.Valcea Chemical Platfom. The most toxic heavy metals determined were: Ni, Cr, Zn, Fe, Cu,. The concentration of these metals was determined by atomic absorption spectrometry method (AAS) using an analyzer type A ANALYST 700.

scholarly journals Mineral and Trace Element Analysis of Australian/Queensland Apis mellifera Honey

2020 ◽  
Vol 17 (17) ◽  
pp. 6304
Author(s):  
Natasha L. Hungerford ◽  
Ujang Tinggi ◽  
Benjamin L. L. Tan ◽  
Madeleine Farrell ◽  
Mary T. Fletcher
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Apis Mellifera ◽  
Urban Areas ◽  
Trace Element Analysis ◽  
Toxic Heavy Metals ◽  
Floral Nectar ◽  
Significant Difference ◽  
The Impact ◽  
Minerals And Trace Elements

Honey is an extensively utilized sweetener containing sugars and water, together with small quantities of vitamins, minerals, fatty acids, amino acids and proteins. Naturally produced by honeybees (Apis mellifera) from floral nectar, honey is increasingly sold as a health food product due to its nutritious features. Certain honeys are retailed as premium, trendy products. Honeybees are regarded as environmental monitors, but few reports examine the impact of environment on Australian honey trace elements and minerals. In higher density urban and industrial environments, heavy metals can be common, while minerals and trace elements can have ubiquitous presence in both agricultural and urban areas. Honey hives are traditionally placed in rural and forested areas, but increasingly the trend is to keep hives in more urban areas. This study aimed to determine the levels of 26 minerals and trace elements and assess elemental differences between honeys from various regional Queensland and Australian sources. Honey samples (n = 212) were acquired from markets, shops and supermarkets in Queensland while urban honeys were purchased online. The honey samples were classified into four groups according to their regional sources: urban, rural, peri-urban and blend honey. Elemental analyses of honey were performed using ICP-MS and ICP-OES after microwave and hot block digestion. Considerable variations of essential trace elements (Co, Cu, Cr, Fe, Mn, Mo and Zn) and mineral levels (Ca, K, Mg, Na and P) were found in honeys surveyed. There were significant differences (p < 0.05) between urban and rural honey samples for B, Na, P, Mn, K, Ca and Cu. Significant differences (p < 0.05) were also found between blend and urban honey samples for K, Cu, P, Mn, Sr, Ni, B and Na. Peri-urban versus urban honeys showed significant differences in P, K and Mn. For rural and peri-urban honeys, the only significant difference (p < 0.05) was for Na. Toxic heavy metals were detected at relatively low levels in honey products. The study revealed that the Queensland/Australian honey studied is a good source of K and Zn and would constitute a good nutritional source of these elements.

scholarly journals ACCUMULATION OF HEAVY METALS IN THE LEAVES OF SORBUS AUCUPARIA L. IN THE URBAN ENVIRONMENT (ON THE EXAMPIE OF ORENBURG)

2020 ◽  
pp. 55-60
Author(s):  
D. G. Fedorova
Keyword(s):  
Heavy Metals ◽  
Urban Areas ◽  
Biological Indicator ◽  
Sorbus Aucuparia ◽  
Toxic Heavy Metals ◽  
Environmentally Sustainable ◽  
Heavy Metals Pollution ◽  
Anthropogenic Intervention ◽  
The Impact ◽  
The City

In urban areas, trees play an essential role to cleanse the airborne toxic pollution in the environment. The species Sorbus aucuparia L. was studied as a biological indicator of toxic heavy metals pollution in the city of Orenburg, Russia. The impact of airborne pollution was assessed by the evaluation of morphometric parameters and the chemical analysis of leaves. The rowan leaves were collected in Orenburg in areas exposed to anthropogenic intervention of various degree. The concentrations of Cd, Cu, Pb, Zn and Fe in leaf samples were compared. It was found that the concentration of heavy metals in plants growing in the city is higher than in the control samples and decreases in the order Cd ˃ Cu ˃ Pb ˃ Zn ˃ Fe. The biological monitoring can be used to study environmental pollution as an environmentally sustainable tool for environmental management in urban areas.

scholarly journals The growth of plants and indigenous bacterial community were significantly affected by cadmium contamination in soil–plant system

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yunyan Du ◽  
Dawei Zhang ◽  
Dinggang Zhou ◽  
Lili Liu ◽  
Jinfeng Wu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Bacterial Community ◽  
Bacterial Communities ◽  
Anthropogenic Activities ◽  
Ecosystem Functions ◽  
Toxic Heavy Metals ◽  
Plant System ◽  
Composition And Structure ◽  
Α Diversity ◽  
The Impact

AbstractConcentrations of heavy metals continue to increase in soil environments as a result of both anthropogenic activities and natural processes. Cadmium (Cd) is one of the most toxic heavy metals and poses health risks to both humans and the ecosystem. Herein, we explore the impacts of Cd on a soil–plant system composed of oilseed rapes (Brassica napus and Brassica juncea) and bacteria. The results showed that Cd accumulation within tissues of two species of oilseed rapes enhanced with increasing concentrations of Cd in soils, and Cd treatment decreased their chlorophyll content and suppressed rapeseeds growth. Meanwhile, Cd stress induced the changes of antioxidative enzymes activities of both B. napus and B. juncea. Response to Cd of bacterial community was similar in soil-two species of oilseed rapes system. The impact of Cd on the bacterial communities of soils was greater than bacterial communities of plants (phyllosphere and endophyte). The α-diversity of bacterial community in soils declined significantly under higher Cd concentration (30 mg/kg). In addition, soil bacterial communities composition and structure were altered in the presence of higher Cd concentration. Meanwhile, the bacterial communities of bulk soils were significantly correlated with Cd, while the variation of rhizosphere soils bacterial communities were markedly correlated with Cd and other environmental factors of both soils and plants. These results suggested that Cd could affect both the growth of plants and the indigenous bacterial community in soil–plant system, which might further change ecosystem functions in soils.

scholarly journals Environmental Impact Assessment of Vehicular Traffic along Major Roads in Delta State of Nigeria, Using Contamination and Enrichment Factors

2021 ◽  
pp. 54-64
Author(s):  
H. O. Juwah ◽  
O. Z. Tachere
Keyword(s):  
Heavy Metals ◽  
Control Point ◽  
Contamination Factor ◽  
Enrichment Factors ◽  
Anthropogenic Sources ◽  
Sampling Location ◽  
Vehicular Traffic ◽  
Toxic Heavy Metals ◽  
Guinea Grass ◽  
The Impact

This research was carried out to evaluate the impact of vehicular traffic, on the soil and grasses growing along major roadsides in Delta state, Nigeria. Soil and Guinea grass samples were collected from three major roads, and a control point in Delta State. The collected samples (plant and soil) were digested according to standard procedures, and their heavy metals (Fe, Cu, Pb and Ni) concentrations were analyzed by using the Atomic Absorption Spectrophotometry. Results obtained indicated that the soil and grass heavy metals concentrations were significantly (p ≤0.05) higher than the control point, and varied across the sampled locations. It was observed from the resulted that, there was heavy metals accumulation in the soil and plants growing along the roadsides. Irrespective of the sampling location, the concentrations of the heavy metals followed this trend Fe ˃Pb ˃Ni ˃ Cu. As revealed by the results, at Ughelli, the contamination factor was in this order Ni > Cu >Fe >Pb; then at Ozoro road, the contamination factor ranking was Ni >Pb >Fe Cu; while at Irri road, the contamination ranked Ni > Cu > Pb > Fe. This showed that Ni had the highest contamination factor, regardless of the road location. As portrayed by the results, the heavy metals enrichment factors were greater than 1. The results revealed that the heavy metals enrichment factors followed this ranking Ni > Cu > Pb in all the locations sampled. These results indicated that the roadsides soil and Guinea grass received their pollution from anthropogenic sources, and vehicular emissions in particular. The results obtained from this study revealed the urgency of the government to decongest vehicular traffic, to prevent accumulation of toxic heavy metals in the ecosystems.

scholarly journals Removal of Toxic Heavy Metals from Contaminated Aqueous Solutions Using Seaweeds: A Review

2021 ◽  
Vol 13 (21) ◽  
pp. 12311
Author(s):  
Edward Hingha Foday Jr ◽  
Bai Bo ◽  
Xiaohui Xu
Keyword(s):  
Heavy Metals ◽  
Metal Ion ◽  
Heavy Metal Contamination ◽  
Removal Rate ◽  
Toxic Heavy Metals ◽  
Metal Ion Removal ◽  
Seaweed Biomass ◽  
Multiple Organs ◽  
Sorption Material ◽  
The Impact

Heavy metal contamination affects lives with concomitant environmental pollution, and seaweed has emerged as a remedy with the ability to save the ecosystem, due to its eco-friendliness, affordability, availability, and effective metal ion removal rate. Heavy metals are intrinsic toxicants that are known to induce damage to multiple organs, especially when subjected to excess exposure. With respect to these growing concerns, this review presents the preferred sorption material among the many natural sorption materials. The use of seaweeds to treat contaminated solutions has demonstrated outstanding results when compared to other materials. The sorption of metal ions using dead seaweed biomass offers a comparative advantage over other natural sorption materials. This article summarizes the impact of heavy metals on the environment, and why dead seaweed biomass is regarded as the leading remediation material among the available materials. This article also showcases the biosorption mechanism of dead seaweed biomass and its effectiveness as a useful, cheap, and affordable bioremediation material.

ASSESSMENT OF HEAVY METAL CONCENTRATION IN COCONUT WATER

1970 ◽  
pp. 07-10
Author(s):  
MdDidarul Islam, Ashiqur Rahaman, Aboni Afrose
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Heavy Metal Concentration ◽  
Coconut Water ◽  
Toxic Heavy Metals ◽  
High Concentration ◽  
Toxic Heavy Metal ◽  
Low Concentration ◽  
Wet Ashing ◽  
Aas Method

This study was based on determining concentration of essential and toxic heavy metal in coconut water available at a local Hazaribagh area in Dhaka, Bangladesh. All essential minerals, if present in the drinking water at high concentration or very low concentration, it has negative actions. In this study, fifteen samples and eight heavy metals were analyzed by Atomic Absorption Spectroscopy (AAS) method which was followed by wet ashing digestion method. The concentration obtained in mg/l were in the range of 0.3 to 1.5, 7.77 to 21.2, 0 to 0.71, 0 to 0.9, 0 to 0.2, 0.9 to 17.3, 0.1 to 0.9, 0 to 0.9 and 0 to 0.7 for Fe, Ni, Cu, Cd, Cr, Zn, Pb and Se respectively. From this data it was concluded that any toxic heavy metals like Cd, Cr, Pb and Ni exceed their toxicity level and some essential nutrients were in low concentration in those samples. 

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