Leaching heavy metals from the surface soil of reclaimed tidal flat by alternating seawater inundation and air drying

Chemosphere ◽  
2016 ◽  
Vol 157 ◽  
pp. 262-270 ◽  
Author(s):  
Shi-Hong Guo ◽  
Zhen-Ling Liu ◽  
Qu-Sheng Li ◽  
Ping Yang ◽  
Li-Li Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Tidal Flat ◽  
Surface Soil ◽  
Air Drying ◽  
Seawater Inundation

scholarly journals GEOCHEMISTRY AND ENVIRONMENTAL ASSESSMENT OF HEAVY METALS IN SURFACE SOIL IN AL-HAWIJA, SOUTHWEST KIRKUK

2020 ◽  
Vol 53 (2E) ◽  
pp. 36-61
Author(s):  
Ahmed Al-Obeidi
Keyword(s):  
Heavy Metals ◽  
Soil Pollution ◽  
Ecological Risk ◽  
Inductively Coupled Plasma ◽  
Surface Soil ◽  
Risk Index ◽  
Size Fraction ◽  
Contamination Factor ◽  
Pollution Load Index ◽  
Anthropogenic Sources

Soil pollution adversely affects the safety and health of the human being. The main objective of the study is to determine the concentrations of heavy metals (As, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb and Zn) in surface soil in Al-Hawija, southwestern Kirkuk. Twenty-one samples were collected and analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) to measure the content of heavy metals and assess the soil pollution by using the contamination factor, degree of contamination, geoaccumulation index, pollution load index and ecological risk index (RI). The results indicate that there is high pollution by lead, chromium and copper (78.8, 87.4 and 53.8 mg/kg) respectively, in industrial areas due to anthropogenic sources with the presence of significant ecological risk (Er) of the lead (116) in site S7, due to its high concentrations, while size fraction analysis indicated that all heavy metals are concentrated in the fine parts as a result of adsorption processes by clay minerals.

scholarly journals Urban soil assessment caused by heavy metals contamination in Yogyakarta City, Indonesia

2021 ◽  
Vol 851 (1) ◽  
pp. 012026
Author(s):  
A T Sekarningsih ◽  
W Budianta ◽  
I W Warmada ◽  
H Hinode
Keyword(s):  
Heavy Metals ◽  
Surface Soil ◽  
Pollution Index ◽  
Soil Samples ◽  
City Center ◽  
Urban City ◽  
Heavy Metals Contamination ◽  
The City ◽  
Cu And Zn ◽  
Yogyakarta City

Abstract The effect of urbanization and industrialization in the urban city is soil contamination by heavy metals. This study was conducted to assess Pb, Cu, Zn, and Cd, in the soil of Yogyakarta city and its surrounding, Indonesia. The assessment was done by analyzing 45 surface soil samples in the study area, divided into three-zone. They are divided based on the distance of each zone to the center of the city. The zone III is located in the outermost of the study area, and zone I is inside the city. The results of the study showed that generally, the highest concentration of metals was located in zone I, which is located near or directly situated in a city center. The result indicated that Pb and Cd had the highest pollution index compared to Cu and Zn. The pollition load indeks (PLI) and geoaccumulation indeks (Igeo) calculations in the whole study area showed that the values demonstrated a moderate class in average. Special attention was needed to be given to the zone I, which has a higher PLI and Igeo index to reduce the source of emission for Pb and Cd.

scholarly journals Empirical Characterization of Heavy Metals in Crude Oil Spill Sites in Emohua, Rivers State, Nigeria

2021 ◽  
Vol 2 (5) ◽  
pp. 24-28
Author(s):  
Nnamdi Michael Ahiamadu ◽  
Ify L. Nwaogazie ◽  
Yusuf O. L. Momoh
Keyword(s):  
Heavy Metals ◽  
Surface Water ◽  
Oil Spill ◽  
Environmental Protection Agency ◽  
Surface Soil ◽  
Soil Samples ◽  
Petroleum Resource ◽  
Significant Difference ◽  
Rivers State ◽  
Pb Concentration

The study assessed the concentration of heavy metals in three oil spill sites in Emohua local government area in Rivers State, Nigeria. Soil samples were collected at depth 0-30cm for surface soil samples and up to 10m for sub-surface soil samples depending on the depth of borehole. Groundwater samples were collected from drilled boreholes while the surface water samples were collected from fishponds or water bodies (rivers) close to the oil spill sites. The samples taken from the oil spill sites were analysed to determine the level of concentration of 10 Department of Petroleum Resource (DPR) specified heavy metals (Cd, Zn, Cu, Pb, Cr, Ba, Ni, Hg, As, and Co). BUCK Scientific Atomic Absorption Spectrophotometer (AAS) was used in detecting the concentration of the heavy metals. For the surface soil, Pb concentration in site A and B were significantly higher than what was obtained at site C, with a mean concentration of 219.70, 130.01 and 3.41mg/kg respectively for the three sites. The mean lead (Pb) concentration obtained in the surface soil was within DPR and United State Environmental Protection Agency (USEPA) acceptable limits. Barium also has significant concentration in both the surface soil and sub-surface soil. Kruskal Wallis test indicated significant difference in the Pb, Cd, Zn, Cu, Cr and Ba concentration in surface/topsoil among the three sites and also indicated significant difference in the concentrations of Pb, Cd, Cr, Ni, Ba and As in sub-surface soil among the sites. Little heavy metal concentration was found in both the groundwater and surface water. The study showed that even if some heavy metals were detected at the oil spill sites, they do not pose any serious health risk, as all the heavy metals in the four environmental media at the three sampling sites were below the national limit stipulated by the Department of Petroleum Resource (DPR), Nigeria.

Increased occurrence of heavy metals, antibiotics and resistance genes in surface soil after long-term application of manure

2018 ◽  
Vol 635 ◽  
pp. 995-1003 ◽  
Author(s):  
Ting Guo ◽  
Chenlu Lou ◽  
Weiwei Zhai ◽  
Xianjin Tang ◽  
Muhammad Z. Hashmi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Resistance Genes ◽  
Surface Soil

Ecological risk and contamination history of heavy metals in the Andong tidal flat, Hangzhou Bay, China

2017 ◽  
Vol 23 (3) ◽  
pp. 617-640 ◽  
Author(s):  
Aimin Jin ◽  
Lin Yang ◽  
Xue-Gang Chen ◽  
Pei-Sun Loh ◽  
Zhanghua Lou ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Ecological Risk ◽  
Tidal Flat ◽  
Hangzhou Bay ◽  
History Of ◽  
Contamination History

Heavy metals speciation in soakaways sediment and evaluation of metal retention properties of surrounding soil

2007 ◽  
Vol 56 (11) ◽  
pp. 81-89 ◽  
Author(s):  
M.A. Hossain ◽  
H. Furumai ◽  
F. Nakajima ◽  
R.K. Aryal
Keyword(s):  
Heavy Metals ◽  
Surface Soil ◽  
Speciation Analysis ◽  
Core Sample ◽  
Significant Heterogeneity ◽  
Soil Core ◽  
Metal Retention ◽  
Adsorption Sites ◽  
Stormwater Infiltration ◽  
Underlying Soil

Heavy metals speciation analysis was carried out on sediment samples accumulated within soakaways in an old stormwater infiltration facility in Tokyo, Japan and on a soil core sample collected near the facility. Heavy metals content in soakaways sediments were much elevated compared to nearby surface soil with the content for Zn, Pb and Cd reaching about 5 to 10 times the content in surface soil. Speciation results revealed that significant amount of the accumulated heavy metals were present in potential mobile fractions, posing threat of release to underlying soil with changing environmental conditions. Detail analyses of soil characteristics indicated significant heterogeneity with depth, especially between the surface soil and underlying soil at site. Decrease in potential adsorption sites with depth was observed in case of underlying soil. Reduced adsorption capacity for heavy metals was evidenced for underlying soil when compared with surface soil. Furthermore, less capability of the soil organic matter to bind heavy metals was evidenced through speciation analyses, which raises concern over the long-term pollution retention potential of the underlying soil receiving infiltrated runoff.

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.

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