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Title: Depositions Of Heavy Metals In The Region Of The Low Stream Of The Arda River

Abstract

The subjects of investigation are depositions in the low stream of Arda river, East Rhodopes region, Bulgaria. The samples have been collected from soils at a depth of 0-20 cm. The samples have been analyzed for content of heavy metals (Pb, Zn, Cu, Ni, Cr)

Authors:
; ;  [1];  [2]
  1. Plovdiv University, 24 Tzar Assen Str., 4000 Plovdiv (Bulgaria)
  2. Joint Institute for Nuclear Research, Dubna (Russian Federation)
Publication Date:
OSTI Identifier:
21057266
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 899; Journal Issue: 1; Conference: 6. international conference of the Balkan Physical Union, Istanbul (Turkey), 22-26 Aug 2006; Other Information: DOI: 10.1063/1.2733474; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; BULGARIA; CHROMIUM; COPPER; DEPOSITION; DEPTH; HEAVY METALS; LEAD; MULTI-ELEMENT ANALYSIS; NICKEL; QUANTITATIVE CHEMICAL ANALYSIS; SAMPLING; SOILS; STREAMS; X-RAY FLUORESCENCE ANALYSIS; ZINC

Citation Formats

Marinova, S. G., Hristov, H. G., Delchev, D. F., and Maslov, O. D.. Depositions Of Heavy Metals In The Region Of The Low Stream Of The Arda River. United States: N. p., 2007. Web. doi:10.1063/1.2733474.
Marinova, S. G., Hristov, H. G., Delchev, D. F., & Maslov, O. D.. Depositions Of Heavy Metals In The Region Of The Low Stream Of The Arda River. United States. doi:10.1063/1.2733474.
Marinova, S. G., Hristov, H. G., Delchev, D. F., and Maslov, O. D.. Mon . "Depositions Of Heavy Metals In The Region Of The Low Stream Of The Arda River". United States. doi:10.1063/1.2733474.
@article{osti_21057266,
title = {Depositions Of Heavy Metals In The Region Of The Low Stream Of The Arda River},
author = {Marinova, S. G. and Hristov, H. G. and Delchev, D. F. and Maslov, O. D.},
abstractNote = {The subjects of investigation are depositions in the low stream of Arda river, East Rhodopes region, Bulgaria. The samples have been collected from soils at a depth of 0-20 cm. The samples have been analyzed for content of heavy metals (Pb, Zn, Cu, Ni, Cr)},
doi = {10.1063/1.2733474},
journal = {AIP Conference Proceedings},
number = 1,
volume = 899,
place = {United States},
year = {Mon Apr 23 00:00:00 EDT 2007},
month = {Mon Apr 23 00:00:00 EDT 2007}
}
  • The paper presents the results of the test for heavy metals (Pb, Zn, Cu, Ni, Cr, Ti, Mn, Fe) in soils collected from the stream of the Arda river up to the Greek border in the East Rhodopes region of Bulgaria. The results were obtained using X-ray fluorescence analysis at the Flerov Laboratory for Nuclear Reactions, Joint institute for Nuclear Research, Dubna, Russia.
  • A calculation method has been developed to estimate the conditions and extent of ammonium chloride and ammonium hydrosulfide depositions in refinery process streams containing ammonia, hydrogen chloride, and hydrogen sulfide impurities. Because salt deposition is a function of feedstock impurity, process temperature, and pressure, it is beneficial to be able to evaluate deposition propensity deductively for each susceptible stream. The evaluation should predict: where, or at what temperature, the salt starts to deposit; the kind of salt that deposits; and the approximate amount of the depositions. The paper describes the equations, thermodynamics, deposition tendency, extent of deposition, the algorithm, andmore » a sample problem.« less
  • Concentrations of lead, zinc, nickel, and cadmium were low in streamwater samples obtained quarterly over 1 year at three sites adjacent to highways of low to moderate traffic volumes (<50, 6550, and 15,000 vehicles per day). Sediment concentrations of lead, nickel, and zinc were highly correlated with traffic density. Stream sediments appeared to serve as the storage reservoir and primary source for bioconcentration of heavy metals. Whole body (dry weight) concentrations of heavy metals in benthic insects and fish were generally comparable to literature values for animals from contaminated waters. Lead concentrations in members of three benthic insect families weremore » significantly correlated with traffic density, as were lead and zinc concentrations in three fish species. Two of the fish species also showed progressive increases in nickel and cadmium with traffic density. Seasonal variation in heavy metal content was evident only in sediment, with highest values during the spring period of maximum runoff.« less
  • Water, sediment, benthos, and fish samples from Back Creek, a soft-water stream in southwestern Virginia, were analyzed to determine whether highway proximity and traffic density influence heavy metal content. Concentrations of lead, zinc, nickel, and cadmium were low in streamwater samples collected from three sites adjacent to highways of low moderate traffic volumes. Sediment concentrations of these metals correlated significantly with traffic density, as did whole body concentrations in benthic insects and fish. Seasonal variation in heavy metal content was evident only in sediment. Long-term field investigations of community dynamics are recommended as a means of assaying the threat tomore » aquatic ecosystems posed by highway-generated heavy metal contamination.« less