Heavy metals in surface waters of Laguna de Bay, Philippines: current levels and trends

Limnology ◽  
2021 ◽  
Author(s):  
Rosselle Sacdal ◽  
Ma. Paz Montano ◽  
Maria Pythias Espino
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Laguna De Bay

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.

Sorption treatment of surface waters from heavy metals by natural and granulated glauconite

2020 ◽  
Author(s):  
A. S. Kutergin ◽  
T. A. Nedobukh ◽  
I. N. Kutergina
Keyword(s):  
Heavy Metals ◽  
Surface Waters

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 The Use of Water Plants in Biomonitoring And Phytoremediation of Waters Polluted with Heavy Metals

2013 ◽  
Vol 20 (2) ◽  
pp. 353-370 ◽  
Author(s):  
Paweł Krems ◽  
Małgorzata Rajfur ◽  
Maria Wacławek ◽  
Andrzej Kłos
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Abiotic Factors ◽  
Defence Mechanisms ◽  
Water Plants ◽  
Polluted Waters

Abstract The publication is a synthetic review of many years of research on the possibility of using water plants (macrophytes) to assess pollution of surface waters and the possibility of using the biomass in phytoremediation processes. The results of the research of kinetics and equilibria of heavy metals sorption and desorption conditions were presented in order to repeatedly use the biomass, as well as the research on the influence of abiotic factors on sorption processes. Defence mechanisms of macrophytes, which enable them to vegetate in considerably polluted waters, have been discussed. The results presented herein and carried out in many countries demonstrate that macrophytes can be successfully used in the biomonitoring of water environments and phytoremediation of waters and sewage; however, validation of these procedures requires more detailed research of the mechanisms, which accompany them.

scholarly journals ENVIRONMENTAL CONDITIONS OF THE WATERS OF THE MANZANARES RIVER, CUMANA-SUCRE, VENEZUELA

2016 ◽  
Author(s):  
Arístide Márquez ◽  
William James Senior ◽  
Gregorio Martínez ◽  
J. Castañeda
Keyword(s):  
Heavy Metals ◽  
Dissolved Oxygen ◽  
Surface Waters ◽  
Environmental Conditions ◽  
Dilution Effect ◽  
Volume Flow ◽  
Human Consumption ◽  
Suspended Material ◽  
Low Salinity ◽  
Total Ammonium

The Manzanares River is one of the more important rivers of Venezuela inasmuch as it is used to supply drinkingwater to a large part of the northeastern zone of Venezuela. For this reason a study was undertaken of the surface waters of theestuarine zone of the river, following the saline gradient from zero to salinities greater than 30. The following properties weremeasured: river volume flow, rainfall, pH, temperature, suspended materials, dissolved oxygen and ammonium, and heavy metals(Fe, Mn, Cu, Zn, Ni, Cr, Pb and Cd) in particulate and dissolved phases. River volume flow varied with seasonal rainfall throughoutthe year, as expected, while temperature varied between 24.5 and30.4 oC and pH ranged from 6.65 and 8.9. From the dry to the wetseason, suspended material increased from 23 to 880 mg/l at low salinity, and always decreased progressively as salinity increased.Concentrations of total ammonium, 14.5 to 14.3 mmol/l, were high, while those of dissolved oxygen, 3.57 to 5.27 ml/l, were low, andthese levels were even more accentuated at salinities under 5 during the dry season. The highest concentrations found for heavymetals were: Fe 406.02; Mn 5.57; Zn 2.18; Cu 0.72; Cr 0.19; Ni 0.72; Pb 0.12; Cd 0.03 mmol/l. These surpass Venezuelan legal limitsfor water intended for human consumption as well as for waters to be discharged in coastal areas. Concentrations decreased atincreased salinity because of the dilution effect, flocculation and/or precipitation in the form of oxyhydroxides. The results obtainedin this study reveal a serious deterioration of the state of the waters of the lower Manzanares river.

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 Seasonal dynamics of cadmium and plumbum in the Turia and Pripyat rivers

2020 ◽  
pp. 540-546
Author(s):  
Halyna Humeniuk ◽  
Olena Voloshyn ◽  
Volodymyr Voloshyn
Keyword(s):  
Heavy Metals ◽  
Surface Waters ◽  
Seasonal Dynamics ◽  
Aquatic Ecosystems ◽  
Quantitative Composition ◽  
Anthropogenic Pressure ◽  
Qualitative Composition ◽  
Significant Excess ◽  
Qualitative And Quantitative ◽  
High Level

The anthropogenic pressure on aquatic ecosystems leads to a significant transformation of their quantitative and qualitative composition. Many rivers of Ukraine are polluted. The object of research was the surface waters of the rivers Pripyat and Turiya (Volyn region, Ukraine). Analysis of the qualitative and quantitative composition of toxicants (Cd, Pb) showed that the waters of the rivers have high level of pollution. A negative phenomenon in the studied reservoirs is a significant excess of concentrations of heavy metals: lead in 118 times and cadmium in 110 times in August.

scholarly journals Research of the Kizil-Dere Deposit Gallery Drainage Impact on Ecological and Hydro/chemical State of the Samur River Basin Waters

2013 ◽  
Author(s):  
Keyword(s):  
Heavy Metals ◽  
River Basin ◽  
Surface Waters ◽  
River Sediments ◽  
Chemical State ◽  
Technogenic Impact ◽  
Chemical Status ◽  
Heavy Metals Ions

Ecological and hydro/chemical status of surface waters and river sediments subjected to technogenic impact of the Kizik-Dere deposit has been assessed according to the data of the 2010–2011 testing. It has been stated that the gallery drainage from the deposit negatively infl uence the Samur River basin waters quality during some periods. Accumulation of the heavy metals ions and their extremely high content in the gallery drainage sediments were noted in the Kizil-Dere and the Akhtychay rivers that were second and fi rst order tributaries of the Samur River, respectively.

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