Distribution and migration of antimony and other trace elements in a Karstic river system, Southwest China

2018 ◽  
Vol 25 (28) ◽  
pp. 28061-28074 ◽  
Author(s):  
Ling Li ◽  
Hong Liu ◽  
Haixia Li
Keyword(s):  
Trace Elements ◽  
Southwest China ◽  
River System ◽  
And Migration

Sources and migration of heavy metals in a karst water system under the threats of an abandoned Pb–Zn mine, Southwest China

2021 ◽  
Vol 277 ◽  
pp. 116774
Author(s):  
Wenjing Qin ◽  
Dongmei Han ◽  
Xianfang Song ◽  
Shaohua Liu
Keyword(s):  
Heavy Metals ◽  
Southwest China ◽  
Water System ◽  
Karst Water ◽  
And Migration

Distribution characteristics and migration patterns of hazardous trace elements in coal combustion products of power plants

Fuel ◽  
2019 ◽  
Vol 258 ◽  
pp. 116062 ◽  
Author(s):  
Jinxi Wang ◽  
Zhen Yang ◽  
Shenjun Qin ◽  
Balaji Panchal ◽  
Yuzhuang Sun ◽  
...  
Keyword(s):  
Trace Elements ◽  
Coal Combustion ◽  
Power Plants ◽  
Combustion Products ◽  
Distribution Characteristics ◽  
Migration Patterns ◽  
Coal Combustion Products ◽  
Hazardous Trace Elements ◽  
And Migration

scholarly journals Contents, Enrichment, Toxicity and Baselines of trace elements in the estuarine and coastal sediments of the Daliao River System, China

2012 ◽  
Vol 46 (5) ◽  
pp. 371-380 ◽  
Author(s):  
CHUNYE LIN ◽  
MENGCHANG HE ◽  
SHAOQING LIU ◽  
YANXIA LI
Keyword(s):  
Trace Elements ◽  
River System ◽  
Coastal Sediments ◽  
Daliao River System

Trace elements in skin-contact clothes and migration to artificial sweat: Risk assessment of human dermal exposure

2016 ◽  
Vol 87 (6) ◽  
pp. 726-738 ◽  
Author(s):  
Joaquim Rovira ◽  
Martí Nadal ◽  
Marta Schuhmacher ◽  
José L Domingo
Keyword(s):  
Trace Elements ◽  
Health Risks ◽  
Hazard Quotient ◽  
Dermal Exposure ◽  
Environmental Scanning ◽  
Potential Health ◽  
Skin Contact ◽  
Artificial Sweat ◽  
High Concentrations ◽  
And Migration

The concentrations of a considerable number of trace elements (Ag, Al, As, B, Ba, Be, Bi, Cd, Co, Cr, Cu, Fe, Hg, Mg, Mn, Mo, Ni, Pb, Sb, Sc, Se, Sm, Sn, Sr, Ti, Tl, V and Zn) were determined in various skin-contact clothes (T-shirts, blouses, socks, baby pajamas and bodies) from the Catalan (Spain) market. In addition, migration experiments with artificial acidic sweat were conducted in order to establish the migration rates of these elements. High levels of Zn (186–5749 mg/kg) were found in zinc pyrithione labeled T-shirts, while high concentrations of Sb and Cr were found in polyester and black polyamide fabrics, respectively. An environmental scanning electron microscope (ESEM) confirmed the presence of Ag and Ti particles and aggregates in several clothing items. The use of the ESEM complemented the results of the elemental analysis and migration experiments. Dermal exposure to trace elements was subsequently calculated, and the human health risks were assessed. Antimony showed the highest mean hazard quotient (HQ = 0.4) for male and female adults wearing polyester clothes; for one of the examined items (polyester T-shirt) the HQ was even above the safety limit (HQ > 1). Exposure to Sb from polyester textile could mean potential health risks in subpopulation groups who frequently wear these clothes, and for long time periods. The migration experiments with artificial sweat showed to be essential for establishing the exposure to trace elements through cloth with direct contact with skin.

scholarly journals The occurrence and distribution of antibiotics in the Karst river system in Kaiyang, Southwest China

2018 ◽  
Vol 18 (6) ◽  
pp. 2044-2052 ◽  
Author(s):  
Shengzhang Zou ◽  
Fuyang Huang ◽  
Liang Chen ◽  
Fei Liu
Keyword(s):  
Southwest China ◽  
River Flow ◽  
Wastewater Treatment Plants ◽  
River System ◽  
Contamination Source ◽  
Antibiotic Concentration ◽  
Detection Frequency ◽  
Karst River ◽  
Flow Quantity ◽  
Total Concentrations

Abstract To our knowledge, this was the first study to investigate the occurrence and distribution of antibiotics in the Karst river system in Kaiyang, Southwest China. Ten water samples were collected from the Karst river in Kaiyang, Southwest China. Thirty-five antibiotics, including nine sulfonamides, four tetracyclines, five macrolides, sixteen quinolones and chloramphenicol, were analyzed. The results suggest that antibiotics are widely prevalent in the Karst river, with macrolides and quinolones being the most dominant and occupying 47% and 43% of total antibiotic concentration, respectively. The maximum total concentrations of sulfonamides, tetracyclines, macrolides, and quinolones were 30.4, 421, 884, and 1,807 ng/L, respectively. Lincomycin, roxithromycin, nalidixic acid, ofloxacin, and norfloxacin were detected in all samples with a detection frequency of 100%. The main sources of antibiotics were wastewater treatment plants (WWTPs) and rural dumps that did not contain sanitary treatment, which accounted for 33% and 40% of the total antibiotics present in the Karst river. Due to an increase in river flow quantity, the presence of WWTPs and rural dumps did not affect the concentration and distribution of antibiotics in the Karst river; however, the mass flux of antibiotics were significantly affected by the contamination source and the poor natural attenuation.

scholarly journals Correction to: resettlement strategies and Han imperial expansion into Southwest China: a multimethod approach to colonialism and migration

2019 ◽  
Vol 11 (12) ◽  
pp. 6783-6783
Author(s):  
Xiaotong Wu ◽  
Anke Hein ◽  
Xingxiang Zhang ◽  
Zhengyao Jin ◽  
Dong Wei ◽  
...  
Keyword(s):  
Southwest China ◽  
Imperial Expansion ◽  
Multimethod Approach ◽  
And Migration

Use of biomarkers, porphyrins, and trace elements to assess the origin, maturity, biodegradation, and migration of Alturitas oils in Venezuela

Fuel ◽  
2012 ◽  
Vol 97 ◽  
pp. 186-196 ◽  
Author(s):  
M. Escobar ◽  
G. Márquez ◽  
V. Azuaje ◽  
A. Da silva ◽  
R. Tocco
Keyword(s):  
Trace Elements ◽  
And Migration
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