scholarly journals LEVELS OF HEAVY METALS IN SEVERAL RIVERS OF THE WESTERN BUG AND DNIESTER BASINS IN THE LVIV REGION (WESTERN UKRAINE)

10.23856/3501 ◽  
2019 ◽  
Vol 35 (4) ◽  
pp. 11-18 ◽  
Author(s):  
Halyna Antonyak ◽  
Marta Lesiv ◽  
Natalia Panas ◽  
Stepan Yanyshyn
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Water Samples ◽  
Environmental Problems ◽  
Anthropogenic Load ◽  
Degree Of Contamination ◽  
Metal Concentrations ◽  
Catchment Areas ◽  
Western Ukraine

Lviv region, one of the most urbanized and industrialized regions of Western Ukraine, faces environmental problems, including pollution of surface waters. The study was aimed to investigate the levels of heavy metals (Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in the waters of three tributaries of the Western Bug River (Poltva, Rata and Kamyanka), as well as in the Dniester River and its two tributaries (the Zubra and Vivnya rivers) within the Lviv region. The results show that the degree of contamination of the Western Bug tributaries with heavy metals is considerably higher at the mouths of the rivers compared to river sources. In particular, metal concentrations at the mouth of the Rata River were 1.23–3.98 times higher than at its source, while water samples at the mouth of the Kamianka River were characterized by higher levels of Fe, Mn, Zn and Cd (2, 12–6.55 times) compared with the source of the river. Concentrations of several heavy metals, especially Fe, exceeded the maximum allowable levels in the waters of the analyzed rivers. Results of the study suggest a significant anthropogenic load in the catchment areas of the analyzed rivers within the Lviv region.

scholarly journals Monitoring of some dissolved heavy metals in surface waters of north-west Croatia from year 2016 to 2018

2020 ◽  
Vol 7 (2) ◽  
pp. 56-62
Author(s):  
Patricia Mlinarić ◽  
Nikola Sakač ◽  
Anita Ptiček Siročić ◽  
Irena Tomiek
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Water Samples ◽  
Negative Impact ◽  
North West ◽  
Copper Nickel ◽  
Dissolved Heavy Metals ◽  
Nickel Manganese

Heavy metals have a negative impact on environment and wildlife. In waters, heavy metals appear in two forms, as dissolved and bioavailable; and as solid and non-soluble. We monitored the concentration of dissolved copper, nickel, manganese and iron in water samples at five river locations of north-west Croatia from 2016 to 2018. Concentrations of dissolved nickel measured at Melačka river, near Vularija in Međimurje county and HE Čakovec dam, near Štefanec in Međimurje county were below 5 µg/l and could be considered as not polluted. Concentrations of dissolved copper measured at Plitvica river, near Zbela in Varaždinska county and Horvatska, near Veliko Trgovišće in Krapinsko-Zagorska county were mostly below 5 µg/l and could be considered as not polluted. At Kosteljina river near Jalšje at the Krapinsko-Zagorska county concentrations of dissolved copper were mostly below 5 µg/l; concentrations of dissolved manganese and iron were higher especially during second part of the year, with some fluctuations. For this reason, Kosteljina river could be considered as medium polluted.

scholarly journals Heavy metals in Venezuelan marine sediments: concentrations, degree of contamination, and distribution

2021 ◽  
Vol 47 (3) ◽  
Author(s):  
Ruth Ramos ◽  
Alejandra Verde ◽  
Elia M García
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Marine Sediments ◽  
Heavy Metal Contamination ◽  
18Th Century ◽  
Distribution Patterns ◽  
Potential Hazard ◽  
Degree Of Contamination ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations

Venezuelan oil exploration and exploitation activities have been taking place since the 18th century. These long-term activities are closely related to heavy metal contamination because of the increasing input of toxic pollutants. Variations in heavy metal concentrations can cause, among other things, changes in metal distribution patterns, alterations in biogeochemical cycles, and increments in environmental and biological risks. The need for a complete baseline on heavy metal concentrations along the Venezuelan coast is critical. For this reason, we present the concentrations, distribution, and degree of contamination of 9 heavy metals (barium, mercury, copper, nickel, chromium, cadmium, zinc, lead, and vanadium) in marine sediments along the Venezuelan coast. We used the enrichment factor, the geoaccumulation index, and the mean effects range median quotients to evaluate the degree of contamination, comparing areas with and without intervention. Our results indicate that higher concentrations of these heavy metals are associated with places with greater anthropic activity, especially on the central and eastern coasts of Venezuela. Only cadmium showed extremely severe enrichment and a high degree of contamination. The biohazard potential was between 12% and 30% and was primarily associated with locations having high oil activity, which suggests that these places must be monitored, given the potential hazard they represent. This work encompasses the distribution and concentration of 9 heavy metals along the Venezuelan coast and takes relevance as a baseline for heavy metal concentrations and pollution indicators in marine sediments for Venezuela and the Caribbean.

scholarly journals Heavy Metal Accumulation at the Bertam Agricultural Watershed in Cameron Highlands, Malaysia

2018 ◽  
Vol 7 (4.35) ◽  
pp. 219
Author(s):  
Haron S.H ◽  
Ismail S ◽  
Sidek L.M
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Water Samples ◽  
Inductively Coupled Plasma ◽  
Heavy Metal Accumulation ◽  
Agricultural Watershed ◽  
World Health ◽  
Metal Concentrations ◽  
Inductively Coupled ◽  
Health Organization

The existence of heavy metals residues in water, soil and air poses a serious risk to all living organisms. Heavy metals, such as Cd, Pb, Cr, Ni, and Hg, are major sources of environmental pollution, especially in areas with high anthropogenic and agriculture activities. The objective of this study is to determine the status of heavy metal concentrations of Cd, Cr, Ni, Pb, Zn, Cu, and Fe in the water bodies of Bertam River, which passes through agricultural areas. The water samples were collected randomly in three replicates from 10 sampling points along the Bertam River. The heavy metals in the water were extracted by using filter paper with a pore size of 0.45 mm. The extracted water sample was preserved by adding nitric acid (pH <2). Sample concentrations were then tested for metal concentrations using inductively coupled plasma mass spectrometry. In this study, the highest mean concentration was Fe (96.04 ± 90.43 ppb), followed by Zn (5.68 ± 0.2.34 ppb), Cu (5.13 ± 2.98 ppb), Cr (1.53 ± 0.19 ppb), Ni (0.85 ± 0.22 ppb), Pb (0.85 ± 1.61 ppb), and Cd (0.027 ± 0.02 ppb), where Fe> Zn> Cu> Pb> Cr> Ni> Cd. However, the concentrations of selected heavy metals in the water samples were below the standards recommended by the World Health Organization.

scholarly journals Heavy metal contamination in surface water of Mohammedia wetland, Morocco

2021 ◽  
Vol 298 ◽  
pp. 05001
Author(s):  
Halima Jounaid ◽  
El Mehdi El Hachimi ◽  
Nihad Chakri ◽  
Toufik Remmal ◽  
Btissam Elamrani ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Water ◽  
Surface Waters ◽  
Metal Contamination ◽  
Heavy Metal Contamination ◽  
Field Observations ◽  
Metal Concentrations ◽  
Industrial Activities ◽  
Heavy Metal Concentrations

Assessing heavy metal concentrations in wetlands and identifying sources of metal contamination are critical steps in protecting wetlands. Using seven sampling stations, we evaluated the spatial variation of some heavy metal concentrations in surface waters of the Mohammedia wetland and a selected segment of the El Maleh wadi that feeds the wetland. Field observations made it possible to identify and map the pollution discharged into El Maleh wadi, carrying heavy metals into the wetland. The analyses showed that the concentrations of lead, manganese, and cadmium far exceed the thresholds relating to fish life in 100% of sampling stations. All the evidence points to heavy metals contamination of surface water in Mohammedia wetland, generated by industrial activities, wastewater discharges, and leachate from the old landfill located upstream.

scholarly journals Heavy Metal Concentrations in Water Samples from Lake Kivu, Rwanda

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Antoine Nsabimana ◽  
Valens Habimana ◽  
Gaidashova Svetlana
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Water Samples ◽  
Human Beings ◽  
Class Iii ◽  
Metal Concentrations ◽  
Heavy Metal Concentrations ◽  
Lake Kivu ◽  
Metal Levels ◽  
Copper Lead

Heavy metals are among the pollutants threatening the living organisms including human beings. The presence of heavy metals in water is of great concern due to their toxicity to aquatic organisms, humans and ability to accumulate in food chains. Thus, there is a need to regularly monitor heavy metal levels in aquatic medium. The present study was conducted to assess heavy metal concentrations in Lake Kivu water. Water samples from Lake Kivu were taken from three sites, namely: Rusizi, Karongi and Rubavu. Heavy metals in the samples were analyzed using Atomic Absorption spectro-photometer (SHIMADZU AAS-6800) and Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES).Copper, lead, cadmium, chromium, manganese, mercury and arsenic concentrations were determined. Copper ranged from 3.24 to 10.01 μg/l, lead varied from 8.81 to 37.44 μg/l, cadmium ranged from 5.01 to 14.01 μg/l,chromium was between 139.5 and 226.6 μg/l, manganese varied from 598.3 to 795.7 μg/l, mercury ranged from 0 to 0.047 μg/l, while arsenic was not detected in any of the analyzed water samples. Except for arsenic, all the other heavy metals exceeded the EPA (US Environment Protection Agency) maximum permissible limit for class III surface water intended for fish consumption and recreation. Thus, there is a need to establish the sources of lake water pollution by heavy metals in order to design further strategies limiting the amounts of heavy metals entering Lake Kivu. Keywords: Cadmium, chromium, copper, lead, manganese, mercury

scholarly journals Iğdır İli Çiftlik Hayvanı İçme Suyu Mineral İçeriklerinin Araştırılması

2020 ◽  
Vol 8 (12) ◽  
pp. 2677-2682
Author(s):  
Başaran Karademir ◽  
Evren Koç ◽  
Yusuf Ziya Oğrak ◽  
Tuncay Tufan ◽  
İbrahim Hakkı Kadirhanoğulları
Keyword(s):  
Heavy Metals ◽  
Water Resources ◽  
Surface Waters ◽  
Water Samples ◽  
Animal Husbandry ◽  
Water Source ◽  
Central District ◽  
Mineral Levels ◽  
First Time ◽  
Aras River

With this research, it was aimed to investigate the content of some heavy metals (Cu, Zn, Fe, Mn) and macro minerals (Mg, Ca, K, Na) in the water resources that meet the water needs of livestock in Iğdır. Water samples were collected from natural springs, surface waters, wells and drilling waters, Aras river and its branches in the region. The data obtained were classified in two different ways and statistical analysis was performed. 1. According to the districts; Central District, Tuzluca, Karakoyunlu, Aralık. 2. According to the type of water resources; Ağrı Mountain spring waters, Ağrı Mountain surface waters, Mountain spring waters, Mountain surface waters, west of Aras river and it’s canals, east of Aras river, Well and Drilling waters. Mineral levels of the water samples were measured by using Atomic Absorption Spectrometer with flame system. According to the district assessment, it was seen that Tuzluca district had lower values compared to other districts. When evaluated according to the type of water source, water mineral content was determined to increase as the waters flowing forward on the surface after reaching to the earth surface It was even found to have become unfit for consumption towards the end. Consequently, with this research, the levels of some heavy metals and macro minerals in the waters used for livestock in the Iğdır region were revealed for the first time with their details. Except for the waters of the East Aras river, the waters of the Iğdır region were found to be of usable quality for animal husbandry.

HEAVY METAL POLLUTION STUDIES OF SUSPENDED SEDIMENTS IN WAIWHETU STREAM WATER BY PIXE

2002 ◽  
Vol 12 (03n04) ◽  
pp. 189-197 ◽  
Author(s):  
V. J. KENNEDY ◽  
A. MARKWITZ
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Surface Waters ◽  
Water Samples ◽  
Stream Water ◽  
Analytical Techniques ◽  
Suspended Sediments ◽  
Industrial Wastes ◽  
Industrial Sites ◽  
Elemental Concentrations

PIXE measurements on filtered water samples were conducted to investigate the possibility of using nuclear based analytical techniques to measure elemental concentrations of heavy metals in suspended sediments in the Waiwhetu Stream (Lower Hutt, New Zealand). It was found that most of the elements detected have a concentration of around 100 ppm by weight with 10 percent variation. Heavy metals like Cu , Zn , Pb and Cd were also present at higher than normal concentrations in the stream. Previous studies of the sediments collected from the Waiwhetu stream had showed that high levels of heavy metals were present at locations close to industrial sites, Nowadays, industries are no longer permitted to dump their waste into the stream. However, high-levels of heavy metals were found to be still present in the water samples indicating that these elements are slowly washed out of the sediments into the surface waters. The present results of Waiwhetu stream water samples revealed that heavy metals are distributed throughout the stream indicating that industrial wastes from industry discharges still linger after 30-40 years.

Groundwater protection and diffuse nitrogen emissions to surface waters – which catchment areas have to be considered?

2007 ◽  
Vol 7 (3) ◽  
pp. 103-110
Author(s):  
C. Schilling ◽  
M. Zessner ◽  
A.P. Blaschke ◽  
D. Gutknecht ◽  
H. Kroiss
Keyword(s):  
Surface Water ◽  
Total Nitrogen ◽  
Surface Waters ◽  
Flow Path ◽  
Emission Model ◽  
Catchment Scale ◽  
Danube Basin ◽  
Nitrogen Emissions ◽  
Nitrogen Levels ◽  
Catchment Areas

Two Austrian case study regions within the Danube basin have been selected for detailed investigations of groundwater and surface water quality at the catchment scale. Water balance calculations have been performed using the conceptual continuous time SWAT 2000 model to characterise catchment hydrology and to identify individual runoff components contributing to river discharge. Nitrogen emission calculations have been performed using the empirical emission model MONERIS to relate individual runoff components to specific nitrogen emissions and for the quantification of total nitrogen emissions to surface waters. Calculated total nitrogen emissions to surface waters using the MONERIS model were significantly influenced by hydrological conditions. For both catchments the groundwater could be identified as major emission pathway of nitrogen emissions to the surface waters. Since most of the nitrogen is emitted by groundwater to the surface water, denitrification in groundwater is of considerable importance reducing nitrogen levels in groundwater along the flow path towards the surface water. An approach was adopted for the grid-oriented estimation of diffuse nitrogen emissions based on calculated groundwater residence time distributions. Denitrification in groundwater was considered using a half life time approach. It could be shown that more than 90% of the total diffuse nitrogen emissions were contributed by areas with low groundwater residence times and short distances to the surface water. Thus, managing diffuse nitrogen emissions the location of catchment areas has to be considered as well as hydrological and hydrogeological conditions, which significantly influence denitrification in the groundwater and reduce nitrogen levels in groundwater on the flow path towards the surface water.

scholarly journals Spatial Variation of Water Chemistry in Aries River Catchment Western Romania

2021 ◽  
Vol 11 (14) ◽  
pp. 6592
Author(s):  
Ana Moldovan ◽  
Maria-Alexandra Hoaghia ◽  
Anamaria Iulia Török ◽  
Marius Roman ◽  
Ionut Cornel Mirea ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Water Chemistry ◽  
Water Samples ◽  
Mine Drainage ◽  
Pollution Indices ◽  
Mining Activities ◽  
River Catchment ◽  
High Concentrations ◽  
The Impact

This study aims to investigate the quality and vulnerability of surface water (Aries River catchment) in order to identify the impact of past mining activities. For this purpose, the pollution and water quality indices, Piper and Durov plots, as well vulnerability modeling maps were used. The obtained results indicate that the water samples were contaminated with As, Fe, Mn, Pb and have relatively high concentrations of SO42−, HCO3−, TDS, Ca, K, Mg and high values for the electrical conductivity. Possible sources of the high content of chemicals could be the natural processes or the inputs of the mine drainage. Generally, according to the pollution indices, which were correlated to high concentrations of heavy metals, especially with Pb, Fe and Mn, the water samples were characterized by heavy metals pollution. The water quality index classified the studied water samples into five different classes of quality, namely: unsuitable for drinking, poor, medium, good and excellent quality. Similarly, medium, high and very high vulnerability classes were observed. The Durov and Piper plots classified the waters into Mg-HCO3− and Ca-Cl− types. The past and present mining activities clearly change the water chemistry and alter the quality of the Aries River, with the water requiring specific treatments before use.

scholarly journals Micropollutants in Urban Stormwater Runoff of Different Land Uses

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1312
Author(s):  
Daniel Wicke ◽  
Andreas Matzinger ◽  
Hauke Sonnenberg ◽  
Nicolas Caradot ◽  
Rabea-Luisa Schubert ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Land Use ◽  
Surface Waters ◽  
Flame Retardants ◽  
Stormwater Runoff ◽  
Monitoring Program ◽  
Quality Standards ◽  
Urban Land Use ◽  
Organic Micropollutants ◽  
Land Use Types

The main aim of this study was a survey of micropollutants in stormwater runoff of Berlin (Germany) and its dependence on land-use types. In a one-year monitoring program, event mean concentrations were measured for a set of 106 parameters, including 85 organic micropollutants (e.g., flame retardants, phthalates, pesticides/biocides, polycyclic aromatic hydrocarbons (PAH)), heavy metals and standard parameters. Monitoring points were selected in five catchments of different urban land-use types, and at one urban river. We detected 77 of the 106 parameters at least once in stormwater runoff of the investigated catchment types. On average, stormwater runoff contained a mix of 24 µg L−1 organic micropollutants and 1.3 mg L−1 heavy metals. For organic micropollutants, concentrations were highest in all catchments for the plasticizer diisodecyl phthalate. Concentrations of all but five parameters showed significant differences among the five land-use types. While major roads were the dominant source of traffic-related substances such as PAH, each of the other land-use types showed the highest concentrations for some substances (e.g., flame retardants in commercial area, pesticides in catchment dominated by one family homes). Comparison with environmental quality standards (EQS) for surface waters shows that 13 micropollutants in stormwater runoff and 8 micropollutants in the receiving river exceeded German quality standards for receiving surface waters during storm events, highlighting the relevance of stormwater inputs for urban surface waters.

Sign in / Sign up

Export Citation Format

Share Document