Heavy Metals Contamination in Agricultural Soil and Rice in Tanzania: A Review

Simon, F. G.; Mtei, Kelvin; Kimanya, Martin

doi:10.11648/j.ijepp.20160401.13

Cited by 19 publications

(19 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There is numerous mineral matter, water, air, organic matter and living organisms in soil. So heavy metals contamination in agricultural soil is a potential environmental threat (Chopra et al, 2009;Simon et al, 2016). From Table (6), Total content of heavy metals concentrations in agricultural soils of the studied locations were as the following sequence: Ni > Cr > Fe > Pb > Cd > Co.…”

Section: Resultsmentioning

confidence: 95%

Soil quality and health risk assessment of heavy metals in agricultural areas irrigated with wastewater from Kitchener Drain, Nile Delta, Egypt

El-Alfy

El‐Amier

El-Hamid

2017

jsa

View full text Add to dashboard Cite

Kitchener drain is one of the largest drains in Nile Delta. It discharges water directly into Mediterranean Sea water affecting on the marine environment. Local population uses its water in irrigation and agriculture field along this drain. So it’s important to determine heavy metal content of agricultural soils used this water in irrigation process and assess the hazard and cancer risk on human health living in these areas. Six metals (Fe, Cd, Pb, Ni, Cr and Co) in total and available form were determined in eight geo-referenced soil samples. The order of these metals in soil was as follow; Ni > Cr > Fe > Pb > Cd > Co. The order of these metals in the available form take the sequence of; Fe > Ni > Pb > Cr > Cd > Co. All mean concentrations of metals were exceeding the standard limits of EU, CSQG and AUEC except for cobalt. Mean values of enrichment factors of metals give an indication that the sources of these metals in the environment were from anthropogenic activities. PLI and DC showed considerable degree of contamination in sites 4 & 5. While it showed high degree of contamination in other sites. Hazard quotient from different exposure pathways namely; chemical daily intake (CDI), Dermal contact (DAD) and inhalation (ECinh) and hazard index calculations from metals within different sites were more than one, indicated that there is a chance of non-carcinogenic effects to occur. Also from these pathways, cancer risk (CR) was calculated, which exceed from dermal contact, followed by ingestion and finally from inhalation. Only CR of cobalt showed no risk in the study area when compared with other metals

show abstract

Section: Resultsmentioning

confidence: 95%

Soil quality and health risk assessment of heavy metals in agricultural areas irrigated with wastewater from Kitchener Drain, Nile Delta, Egypt

El-Alfy

El‐Amier

El-Hamid

2017

jsa

View full text Add to dashboard Cite

show abstract

“…The increased mining operations and their effects on pollution has raised public concern about human health. The pollution of arable soils from major and trace elements has resulted into the contamination processes including the Minjingu phosphate factory activities [1].…”

Section: Background Of the Studymentioning

confidence: 99%

Assessment of Vegetables and Soils from Minjingu Village-Tanzania using WDXRF Technique

Koleleni

Tafisa

2019

AJR2P

View full text Add to dashboard Cite

Wavelength dispersive x-ray fluorescence (WDXRF) spectrometer was used to analyze heavy metal concentration in soils and vegetables. The soil and vegetable samples were randomly collected from Minjingu village of Manyara region in Tanzania. The results indicate the soils to be contaminated with heavy metals with mean concentrations of 53±0.4 For Mn, 40±0.2 for Sr, 2059±4.2 for Fe, 760±2.7 for Al, 12±0.3 for Cs and 4±0.04 for Ni in mg/kg which was above the Maximum Tolerable Limits (MTLs). Except Cl was below MDL. While vegetables recorded the mean concentrations of 60±1.2 for Mn, 68±0.1 for Sr, 620±2.36 for Fe, 284±1,13 for Al, 56±0.5 for Cs, 13±0.1 for Ni and 714±0.7 for Cl in mg/kg. The reference and experimental results of soil and vegetables revealed that the optimized machine has given the best results, where the experimental data was very close to the reference values The reference material of soil 7 and International Atomic Energy Agency (IAEA) 395 for vegetables shows the deviation of less than 2%.The Minimum Detection Limit (MDL) for vegetables and soil of the WDXRF spectrometer was obtained under low back ground for different matrix effects. There were high correlation coefficient of heavy metals in soils and vegetables at 99% level. The findings indicate that Minjingu soils and grown vegetables were highly contaminated with heavy metals mainly from soils and polluted air, at levels able to pose detrimental health effects to the consumers. Thus need of regular monitoring of the grown vegetables around phosphate mines is recommended.

show abstract

“…Menurut The Health Risk Index (HRI), logam yang berbahaya (index >1) secara berurutan adalah Cr >Zn >Ni >Cd >Mn > Pb> Cu >Fe. Simon et al (2016) menyatakan pengairan sawah dari air bekas pertambangan di Tanzania tercemar logam Pb. Hal ini dapat diatasi dengan merawat lingkungan untuk keamanan hasil-hasil pertanian.…”

Section: Cemaran Logam Berat DI Luar Negeriunclassified

Mycoremediation to Remove Heavy Metal Pollution in Post-Mining Areas for Farmland Utilization

Ahmad

2018

WARTAZOA

View full text Add to dashboard Cite

The agriculture land including farmland is decreasing caused by conversion to industrial area and settlement, therefore post-mining area is used to be farmlands. The utilization of post-mining area causes serious health problem in animals and humans due to heavy metal waste pollution (Ag, As, Cd, Co, Cr, Cu, Hg, Ni, and Pb). Efforts to overcome the pollution of heavy metals on farms can be carried out by preventing and controlling waste in post-mining and industry areas. There are several mycoremediation methods to recover heavy metal polluted land such as biosorption, bioaccumulation, bioprecipitation, bioreduction, and bioleaching. Mycoremediation is a process to remove pollutants or heavy metals from soil using potential fungi (Aspergillus flavus, Penicillium sp, Fusarium sp, Saccharomyces cerevisiae). Mycoremediation is chosen due to economical cost, efficient, and environmentally friendly.

show abstract

Heavy Metals Contamination in Agricultural Soil and Rice in Tanzania: A Review

Cited by 19 publications

References 31 publications

Soil quality and health risk assessment of heavy metals in agricultural areas irrigated with wastewater from Kitchener Drain, Nile Delta, Egypt

Soil quality and health risk assessment of heavy metals in agricultural areas irrigated with wastewater from Kitchener Drain, Nile Delta, Egypt

Assessment of Vegetables and Soils from Minjingu Village-Tanzania using WDXRF Technique

Mycoremediation to Remove Heavy Metal Pollution in Post-Mining Areas for Farmland Utilization

Contact Info

Product

Resources

About