Monitoring of heavy metals in airborne particles by using bark samples of japanese cedar collected from the metropolitan region of Japan

1982 ◽  
Vol 16 (8) ◽  
pp. 2015-2018 ◽  
Author(s):  
Jun Tanaka ◽  
Masami Ichikuni
Keyword(s):  
Heavy Metals ◽  
Japanese Cedar ◽  
Airborne Particles ◽  
Metropolitan Region

scholarly journals Phytoextraction of heavy metals from a landfill in the metropolitan region of Belém-Pará-Brazil

2014 ◽  
Vol 57 (4) ◽  
pp. 429-438
Author(s):  
João Roberto Rosa e Silva ◽  
Antonio Rodrigues Fernandes ◽  
Daniel Vidal Perez
Keyword(s):  
Heavy Metals ◽  
Metropolitan Region

scholarly journals Majors soil classes of the metropolitan region of Curitiba (PR), Brazil: II - interaction of Pb with mineral and organic constituents

2007 ◽  
Vol 50 (2) ◽  
pp. 183-192 ◽  
Author(s):  
Ana Christina Duarte Pires ◽  
Vander de Freitas Melo ◽  
Antônio Carlos Vargas Motta ◽  
Valmiqui Costa Lima
Keyword(s):  
Water Pollution ◽  
Heavy Metals ◽  
Organic Matter ◽  
Metropolitan Region ◽  
Maximum Adsorption Capacity ◽  
Leaching Potential ◽  
Ground Water Pollution ◽  
Factors Influencing ◽  
Plastic Bags ◽  
Soil Constituents

The interaction between heavy metals and soil constituents is one of the most important factors influencing the potential for ground water pollution. To study Pb behavior, samples of soils were incubated with a salt solution containing this metal. The experimental units consisted of plastic bags, partially opened with 0.1 dm³ of soil with three replications. After incubation, samples were subjected to sequential and selective extractions. Lead retention, measured by the maximum adsorption capacity of the soil, was relatively high with values ranging from 6,439 to 22,148 mg kg-1. The sequential and selective extractions showed that Pb adsorption was stable where the metal was found mainly in organic matter, Fe and Al oxides, and residual forms (specific adsorption). The capacity of the soils to retain Pb, thereby increasing the leaching potential of the metal, was in the sequence of: Histosol - Oxisol - Inceptisol.

scholarly journals Concentration and health risk assessment of heavy metals in airborne particles at nusery schools in Ha Noi

2019 ◽  
Vol 35 (1) ◽  
Author(s):  
Tran Dinh Trinh ◽  
Nguyen Thi Thuy Men
Keyword(s):  
Heavy Metals ◽  
Risk Assessment ◽  
Trace Elements ◽  
Health Risk ◽  
Daily Intake ◽  
Airborne Particles ◽  
Emission Sources ◽  
Limit Values ◽  
Sampling Campaign ◽  
Metals And Trace Elements

Indoor air quality is increasingly important as people spend more and more time for indoor activities.  A sampling campaign was conducted to sample airborne particles at nursery schools in Hanoi in May and June 2018. The sampling strategy was performed during lessons and in absence of children in classrooms. Heavy metals and trace elements (Cu, Pb, Cd, Zn, Ni, As, Mn, Cr, Hg, Fe…) were quantified by using ICP-MS method. Emission sources of heavy metals were estimated using statistical analyses such as factor analysis while cancer risk assessment was conducted using chronic daily intake (CDI) and slop factor (SF). In the presence of children, indoor concentrations of heavy metals and trace elements were within the range from 1,7-3,2 ng/m3 (Cd) to 1588-3238 ng/m3 (Zn), while these corresponding values obtained when the rooms were empty were in the ranges of 0,6-0,9  and 746,2-2011 ng/m3. Indoor/outdoor ratios of studied elements varied from school to school and ranged from 0.25 to 2.88, implying presence of indoor emission sources. The calculated cancer risks ranged from 4.8x10-6 to 5.0x10-4, being hihgher than limit values set by USEPA, implying significant health risk to young children.

Natural and anthropogenic influences on heavy metals in airborne particles over the Korean Peninsula

2014 ◽  
Vol 21 (18) ◽  
pp. 10713-10724 ◽  
Author(s):  
Young Sung Ghim ◽  
Yongjoo Choi ◽  
Young-Soo Chang ◽  
Jeongsoo Kim
Keyword(s):  
Heavy Metals ◽  
Korean Peninsula ◽  
Airborne Particles ◽  
Anthropogenic Influences

scholarly journals ASSESSMENT OF HEAVY METAL FOCUSING ON CADMIUM, COPPER AND LEAD UPTAKE BY CROPS IN GREATER BANGKOK METROPOLITAN REGION, THAILAND

2020 ◽  
Vol 1 (40) ◽  
pp. 149-162
Author(s):  
Trang Huynh Thi Thu Thach ◽  
Son Phuoc Lai
Keyword(s):  
Heavy Metals ◽  
Inductively Coupled Plasma ◽  
Daily Intake ◽  
Metropolitan Region ◽  
Lead Uptake ◽  
Inductively Coupled ◽  
Significant Difference ◽  
Balance Analysis ◽  
Cadmium And Lead ◽  
Edible Parts

The objective of this study is to assess heavy metals, copper, cadmium and lead, uptake by food crops andvegetables grown in the greater Bangkok Metropolitan Region in Thailand. The three heavy metals were detected in three types of vegetables cultivated in three provinces Pathum Thani, Ayutthaya, and Nonthaburi representing Greater Bangkok Metropolitan Region (GBMR). An Inductively Coupled Plasma method was used to estimate and evaluate the levels of these metals’ concentration in the vegetables, soil, water, manure, and chemical fertilizer. The physical and chemical characterizations of which were conducted to compare the heavy metals concentrations with similar characteristics. Heavy metals concentrations were compared both in wetand dry season. Moreover, the edible and non-edible parts of the vegetables were also considered for the comparative study and found a significant difference in copper (Cu) concentrations in morning glory.The concentrations of Cu were found in edible and non-edible parts were 0.38 and 1.10 ug/g respectively. To account the flow of heavy metals concentration in  certain location, a mass balance analysis was conducted for the three different provinces, and found that about 18 mg of Cu accumulated in all three provinces. The cadmium (Cd) and lead (Pb) levels were found to be insignificant. The contributions of the vegetables to the daily intake of the heavy metals from the vegetables were determined.

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