scholarly journals Occurrence and distribution of dissolved trace elements in the surface waters of the Yakima River basin, Washington

2003 ◽  
Keyword(s):  
Trace Elements ◽  
River Basin ◽  
Surface Waters ◽  
Yakima River ◽  
Dissolved Trace Elements

Geochemistry of trace elements in surface waters of the Arno River Basin, northern Tuscany, Italy

2009 ◽  
Vol 24 (5) ◽  
pp. 1005-1022 ◽  
Author(s):  
Gianni Cortecci ◽  
Tiziano Boschetti ◽  
Enrico Dinelli ◽  
Rosa Cidu ◽  
Francesca Podda ◽  
...  
Keyword(s):  
Trace Elements ◽  
River Basin ◽  
Surface Waters

scholarly journals Surface and Groundwater Pollution: the Invisible, Creeping Threat to Human Health

2020 ◽  
Vol 16 (1) ◽  
pp. 157-169
Author(s):  
Hammad Ahmed Shah ◽  
Muhammad Sheraz ◽  
Afed Ullah Khan ◽  
Fayaz Ahmad Khan ◽  
Liaqat Ali Shah ◽  
...  
Keyword(s):  
Trace Elements ◽  
Health Risk ◽  
Human Health ◽  
Surface Waters ◽  
Best Management Practices ◽  
Control Point ◽  
Human Health Risk ◽  
Adults And Children ◽  
Surface And Groundwater ◽  
Dissolved Trace Elements

AbstractThis study reports pollution source apportionment of surface waters and human health risk assessment based on 18 physicochemical and traces elements from 24 water quality monitoring sites for surface and groundwater around the two trans-boundary rivers of Pakistan: The Ravi and Sutlej. The principal component analysis identified 6 principal components (76.98 % cumulative variance) which are mainly caused by untreated industrial effluents, intense agricultural activities, and irrigation tailwater discharges. For all dissolved trace elements in surface waters, health hazard indices (HI) and hazard quotients (HQ) through ingestion and dermal contact are < 1 except As and Cr through ingestion only (for both adults and children). For adults and children, the HQingestion and HI values for As, Mn, Cu (for children only) and As, Fe, Mn (for children only) are > 1, indicating that As, Mn, Fe, and Cu are the most important pollutants causing chronic risks among the selected trace elements in both shallow and deep groundwater respectively. HQingestion, HQdermal, and HI values are higher for children than that of adults which shows the high susceptibility of children to these dissolved trace elements. The carcinogenic indices for the entire surface water elements exceed 10−6 through dermal and ingestion pathways suggesting carcinogenic health risk to the surrounding community. Hence, to protect human health, wastewater treatment plants and best management practices should be practiced to control point source and nonpoint source pollution respectively in the understudied area.

scholarly journals Seasonal Variations and Health Risk Assessment of Trace Elements in Seti River Basin, Gandaki Province, Nepal

2021 ◽  
Author(s):  
Ramesh Raj Pant ◽  
Kiran Bishwakarma ◽  
Jharana Nepal ◽  
Sudip Paudel ◽  
Mohan Bahadur Chand ◽  
...  
Keyword(s):  
Water Quality ◽  
Trace Elements ◽  
River Basin ◽  
Monsoon Season ◽  
Hazard Index ◽  
Health Impacts ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
Himalayan River ◽  
Dissolved Trace Elements

Abstract To explore the seasonal variability and associated health risks of dissolved trace elements (TEs), a total of 45 water samples (15 samples in each season) were collected from the Seti River Basin during pre-monsoon, monsoon, and post-monsoon seasons. A total of 15 (TEs) were analysed and the results revealed that Arsenic (As), Chromium (Cr), and Nickel (Ni) were primarily controlled by lithogenic sources, whereas, Cadmium (Cd), Cobalt (Co), Cesium (Cs), Cupper (Cu), Manganese (Mn), Lead (Pb), and Zinc (Zn) were derived from both anthropic and geogenic origin. Additionally, the concentration of Zn was markedly high, especially during the post-monsoon season nearby the landfill site, indicating the anthropic signatures. The hazard index and cancer index were found to be < 1.00 and 10− 6-10− 4, respectively indicating minimum health impacts. The water quality index was < 50 throughout the sampling periods, with better water quality during the monsoon. This study could help to formulate the necessary policies for the sustainability of the Himalayan River Basins.

scholarly journals Microelements in the surface waters of the Malka River basin and geochemical features of the region

2021 ◽  
pp. 172-184
Author(s):  
Н.В. Реутова ◽  
Т.В. Реутова ◽  
Ф.Р. Дреева ◽  
А.М. Хутуев
Keyword(s):  
Trace Elements ◽  
River Basin ◽  
Surface Waters ◽  
Noble Metals ◽  
Absorption Spectrometry ◽  
Trace Element Composition ◽  
Point Of View ◽  
Soluble Form ◽  
Clear Trend ◽  
Geochemical Anomalies

Изучение химического состава поверхностных вод является весьма актуальной задачей, как с точки зрения исследования вопросов миграции элементов, так и возможного наличия токсичных микроэлементов. Целью работы было изучение возможного влияния геохимических аномалий, расположенных в бассейне реки Малка, на содержание ряда микроэлементов в растворимой форме в поверхностных водах этого района. Методы работы.Исследования микроэлементного состава поверхностных вод проводились с 2013 по 2019 гг. По руслу самой реки было расположено 6 створов. Также приводятся данные по 13 притокам и 7 родникам. В этих водных объектах нами было изучено содержание 12 микроэлементов (Ag, Al, As, Cd, Cr, Cu, Li, Mn, Mo, Ni, Pb, Zn). Пробы отбирали в период интенсивного таяния ледников. Содержание тяжелых металлов определяли методом атомно-абсорбционной спектрометрии. Содержание ионов лития определяли методом капиллярного ионофореза. Результаты работы. Воды реки на исследуемом участке являются достаточно чистыми. Концентрации мышьяка, алюминия, меди, молибдена и кадмия были очень низкими. Концентрации мышьяка были очень низкими в пределах 1 мкг/ дм3, что соответствует кларковому числу. В водах среднего течения реки Малка и ее притоков концентрации серебра повышались до 0,1 – 0,2 мкг/ дм3, что хорошо согласуется с данными о наличии аномалий, связанных с месторождением благородных металлов в этом районе. Четко прослеживается связь между наличием повышенных концентраций свинца и цинка в поверхностных водах и участков с наличием геохимических аномалий для этих элементов. В районе расположения Малкинского месторождения железных руд, природно легированных хромом и никелем, наблюдается повышение концентраций этих элементов в поверхностных водах. Для марганца четко прослеживается тенденция закономерного снижения концентраций при транзите вод из высокогорной зоны на равнину. Высокие концентрации лития в водах верховий бассейна реки Малка связаны с Эльбрусским вулканическим центром The study of the chemical composition of surface waters is a very urgent task both from the point of view of studying the migration of elements in the environment, and the possible presence of toxic trace elements. The aim of this work was to study the possible influence of geochemical anomalies located in the Malka River basinon the content of trace elements in soluble form in the surface waters of this area. Methods. Studies of the trace element composition of surface waters were conducted from 2013 to 2019. There are 6 sampling points located along the riverbed itself. Data on 13 tributaries and 7 springs are also provided. In these water bodies, we studied the content of 12 trace elements (Ag, Al, As, Cd, Cr, Cu, Li, Mn, Mo, Ni, Pb, Zn). The samples were taken during the period of intensive melting of glaciers. The content of heavy metals was determined by atomic absorption spectrometry. The content of lithium ions was determined by capillary ionophoresis. Results. The waters of the river in the study area are quite clean. The concentrations of arsenic aluminum, copper, molybdenum, and cadmium were very low. In the waters of the middle course of the Malka Riverand its tributaries, silver concentrations increased to 0.1-0.2 µ/ dm3, which is in good agreement with the data on the presence of anomalies associated with the deposit of noble metals in this area. There is a clear link between the presence of elevated concentrations of lead and zinc in surface waters and sites with the presence of geochemical anomalies for these elements. In the area of the Malkinsky deposit of iron ores naturally alloyed with chromium and nickel there is an increase in the concentrations of these elements in surface waters. For manganese, there is a clear trend of a natural decrease in concentrations during the transit of water from the high-altitude zone to the plain. High concentrations of lithium in the waters of the upper reaches of the Malka River basin are associated with the Elbrus volcanic center.

Geochemical behaviour of dissolved trace elements in a monsoon-dominated tropical river basin, Southwestern India

2013 ◽  
Vol 21 (7) ◽  
pp. 5098-5120 ◽  
Author(s):  
G. P. Gurumurthy ◽  
K. Balakrishna ◽  
M. Tripti ◽  
Stéphane Audry ◽  
Jean Riotte ◽  
...  
Keyword(s):  
Trace Elements ◽  
River Basin ◽  
Tropical River ◽  
Geochemical Behaviour ◽  
Dissolved Trace Elements ◽  
Southwestern India

Water Quality in the Yakima River Basin, Washington, 1999-2000

Circular ◽  
2004 ◽  
Author(s):  
Gregory J. Fuhrer ◽  
Jennifer L. Morace ◽  
Henry M. Johnson ◽  
Joseph F. Rinella ◽  
James C. Ebbert ◽  
...  
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Yakima River
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