Source apportionment and spatial distribution of heavy metals in atmospheric settled dust of Ulaanbaatar, Mongolia

2021 ◽  
Author(s):  
Chultem Batbold ◽  
Sonomdagva Chonokhuu ◽  
Khulan Buuveijargal ◽  
Khongor Gankhuyag
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Source Apportionment ◽  
Settled Dust

scholarly journals Spatial Distribution, Chemical Speciation and Health Risk of Heavy Metals from Settled Dust in Qingdao Urban Area

Atmosphere ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 73 ◽  
Author(s):  
Hongxia Xu ◽  
Yan Wang ◽  
Ruhai Liu ◽  
Mingyu Wang ◽  
Yanyan Zhang
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Health Risk ◽  
Urban Area ◽  
Chemical Speciation ◽  
Construction Materials ◽  
Principal Component ◽  
Carcinogenic Risk ◽  
Settled Dust ◽  
Old City

Settled dust samples were collected from Qingdao urban area to analyze the spatial distribution, chemical speciation and sources of metals, and to evaluate the health risk of metals from atmospheric dust. The average contents of Hg, Cd, Cr, Cu, Ni, Pb and Zn in the atmospheric settled dust of Qingdao were 0.17, 0.75, 153.1, 456.7, 60.9, 176.0 and 708.3 mg/kg, respectively, which were higher than soil background values. The mean exchangeable metal and carbonated-associated fraction proportions of Cd, Zn and Pb were 43.6%, 26.1% and 15%, which implies that they have high mobility and bioavailability. Higher contents of heavy metals appeared in old city areas because of the historical accumulation of metals. Principal component analysis showed that combustion sources partially contributed to Pb, Zn and other trace metals. Hg, Pb and Zn mainly originated from business, human activities and municipal construction. Cd and Cu from settled dust of the old city originated from the erosion and ageing of construction materials. The non-carcinogenic risk rankings for the seven determined heavy metals were ingestion > dermal > inhalation. Cd, Cr and Ni from settled dust showed a low carcinogenic risk. The health risks of Cr, Cu and Pb were higher in old city areas and, therefore, need special attention.

Spatial distribution and source apportionment of heavy metals in soils of Gebeng industrial city, Malaysia

2014 ◽  
Vol 73 (1) ◽  
pp. 115-126 ◽  
Author(s):  
Mohammed Amjed Hossain ◽  
Nasly M. Ali ◽  
Mir Sujaul Islam ◽  
H. M. Zakir Hossain
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Source Apportionment ◽  
Industrial City ◽  
Heavy Metals In Soils

scholarly journals Spatial Distribution and Source Apportionment of Soil Heavy Metals in Pearl River Delta, China

2021 ◽  
Vol 13 (17) ◽  
pp. 9651
Author(s):  
Guangcai Yin ◽  
Hanghai Zhu ◽  
Zhiliang Chen ◽  
Chuanghong Su ◽  
Zechen He ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Spatial Distribution ◽  
Source Apportionment ◽  
Pearl River Delta ◽  
Surface Soil ◽  
Pollution Source ◽  
River Delta ◽  
Pearl River ◽  
Agricultural Activities ◽  
The Pearl River

The contents of ten heavy metals (HMs) (Cu, Pb, Zn, Cd, Ni, Cr, Hg, As, Co, and Mn) in 80 surface soil samples (0–20 cm) were investigated in the Pearl River Delta (PRD), Guangdong Province, China. The average contents of Cu, Pb, Zn, Cd, Ni, Cr, Hg, As, Co, and Mn were 16.45, 40.20, 45.10, 0.09, 12.93, 47.93, 0.13, 14.44, 5.68, and 199.66 mg/kg, respectively. The soil quality was generally good, though slightly higher levels (1.17, 1.61, 1.67, and 1.62 times) of soil Pb, Cd, Hg, and As contents were observed compared with the soil background values. The spatial distribution of soil HM pollution in the PRD showed that 36% of sample sites were evaluated as sites without soil pollution, 32% as sites with slight pollution, 20% as sites with nearly moderate pollution, 9% as sites with moderate pollution, and 3% as site with serious pollution. Source apportionment analysis showed that the source of 64.33% of soil HMs in the PRD could be explained by natural and industrial sources, 24.80% by transportation, and 10.87% by agricultural activities.

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