Chemometrical classification of biomonitoring analytical data for heavy metals. Part II. Mosses as bioindicators

1999 ◽  
Vol 69 (3-4) ◽  
pp. 287-294 ◽  
Author(s):  
S. Tsakovski ◽  
V. Simeonov ◽  
Th. Sawidis ◽  
G. Zachariadis ◽  
J. Stratis
Keyword(s):  
Heavy Metals ◽  
Analytical Data

Chemometrical classification of biomonitoring analytical data for heavy metals. Part III. Lichens as bioindicators

1999 ◽  
Vol 69 (3-4) ◽  
pp. 295-304
Author(s):  
J.A. Stratis ◽  
S. Tsakovski ◽  
V. Simeonov ◽  
G. Zachariadis ◽  
Th. Sawidis
Keyword(s):  
Heavy Metals ◽  
Analytical Data

Chemometrical classification of biomonitoring analytical data for heavy metals part I. trees (leaves) as bioindicators

1996 ◽  
Vol 54 (1-4) ◽  
pp. 29-37 ◽  
Author(s):  
J. A. Stratis ◽  
G. Zachariadis ◽  
V. Simeonov ◽  
P. Mandjukov ◽  
T. Sawidis
Keyword(s):  
Heavy Metals ◽  
Analytical Data

A chemical–mineralogical classification of common plutonic rocks and associations

1983 ◽  
Vol 73 (3) ◽  
pp. 135-149 ◽  
Author(s):  
F. Debon ◽  
P. Le Fort
Keyword(s):  
Analytical Data ◽  
Quartz Content ◽  
New Approach ◽  
Mineralogical Characteristics ◽  
Simple Chemical ◽  
Plutonic Rocks ◽  
The Individual ◽  
New Criteria ◽  
Different Levels

ABSTRACTA classification is proposed, based mainly on major element analytical data plotted in a coherent set of three simple chemical-mineralogical diagrams. The procedure follows two complementary steps at two different levels. The first is concerned with the individual sample: the sample is given a name (e.g. granite, adamellite, granodiorite) and its chemical and mineralogical characteristics are determined. The second one is more important: it aims at defining the type of magmatic association (or series) to which the studied sample or group of samples belongs. Three main types of association are distinguished: cafemic (from source-material mainly or completely mantle-derived), aluminous (mainly or completely derived by anatexis of continental crust), and alumino-cafemic (intermediate between the other two types). Subtypes are then distinguished among the cafemic and alumino-cafemic associations: calc-alkaline (or granodioritic), subalkaline (or monzonitic), alkaline (and peralkaline), tholeiitic (or gabbroic-trondhjemitic), etc. In the same way, numerous subtypes and variants are also distinguished among the aluminous associations using a set of complementary criteria such as quartz content, colour index, alkali ratio, quartz–alkalies relationships and alumina index.Although involving a new approach using partly new criteria, this classification is consistent with most of the divisions used in previous typologies. The method may also be used in the classification of the volcanic equivalents of common plutonic rocks.

scholarly journals Heavy metal content in compost and earthworms from home composters

2017 ◽  
Vol 28 (4) ◽  
pp. 1-4 ◽  
Author(s):  
Marta Bożym
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Total Content ◽  
Heavy Metal Content ◽  
Organic Fertilizers ◽  
Allotment Gardens ◽  
Naturally Occurring ◽  
Polish Law

Abstract The paper presents the results of compost tests from home composters and earthworms living there, that treating waste into compost. The samples were taken from home composters and allotment gardens from Opole Region. The composting material was green waste. The total content of heavy metals (Cd, Pb, Cu, Zn, Ni Cr) in compost and compost earthworms’ samples were determined. It was found that the compost samples were not contaminated with heavy metals. According to the Polish classification of composts from municipal wastes, the composts met the requirements for first class of quality. The composts did not exceed the limits of heavy metals specified in the Polish law for solid organic fertilizers. The degree of metal accumulation by compost earthworms depended on the type of metal. The high value of the bioaccumulation factor (BAF) was obtained for Cd, Pb and Zn. No accumulation of other metals (Ni, Cr, Cu) in earthworm bodies was found. It has been found that earthworm species, naturally occurring in Poland, can also be used as potential bioindicators of metals in the environment, such as the species Eisenia fetida. The aim of the study was to evaluate the heavy metal content in composts from home composters and ability to accumulate metals by compost earthworms.

Classification of multicomponent analytical data of olive oils using different neural networks

1994 ◽  
Vol 292 (3) ◽  
pp. 219-234 ◽  
Author(s):  
Jure Zupan ◽  
Marjana Novič ◽  
Xinzhi Li ◽  
Johann Gasteiger
Keyword(s):  
Neural Networks ◽  
Analytical Data ◽  
Olive Oils

scholarly journals Contamination of bottom sediments by lead, zinc and cadmium in Rzeszow reservoir

2018 ◽  
Vol 29 (4) ◽  
pp. 10-15
Author(s):  
Katarzyna Maj-Zajezierska ◽  
Piotr Koszelnik
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Sediment Quality ◽  
Environmental Risks ◽  
Sediment Classification ◽  
Quality Classification ◽  
Lead Zinc ◽  
Aquatic Sediment ◽  
Positive Effect

Abstract The aim of the present study was to determine the level of contamination of the bottom sediments in the Rzeszow reservoir by the selected heavy metals Pb, Cd and Zn, and to identify the potential environmental risks of heavy metals content basing on available assessments and classification of bottom sediments. The Rzeszow reservoir is situated on the Wisłok River in the Podkarpackie Voivodeship, southeaster Poland, was constructed on 1974. Nowadays, as a result of silting, the reservoir reduced its surface and depth, which does not have a positive effect on the assumed functions it is to perform. The study was conducted in 2016. The samples of sediment were collected in five locations. Samples were taken twice: in June and in October. The following concentrations have been determined: cadmium - 0.01 ÷ 0.92 mg•kg–1, zinc - 54.39 ÷ 128 mg•kg–1, lead - 2.98 ÷ 25.42 mg•kg–1. The decline trend in the sediment is following: Zn > Pb > Cd. For the assessment of sediment contamination, following methods: aquatic sediment quality classification used by the Polish Geological Institute - I class, Regulation of the Minister of Environment of April 16 2002 on the types and concentrations of substances contaminating the excavated material – unpolluted and LAW sediment classification – Pb - I/I-II, Cd - I/I-II/II and Zn - I/I-II. The obtained results were compared with the results obtained by the other authors in earlier years, which led to the estimated changes in the concentration of the tested metals.

OXYGEN-CONTAINING FUNCTIONAL GROUPS IN ORGANIC SOILS AND THEIR RELATION TO THE DEGREE OF HUMIFICATION AS DETERMINED BY SOLUBILITY IN SODIUM PYROPHOSPHATE SOLUTION

1966 ◽  
Vol 46 (3) ◽  
pp. 237-243 ◽  
Author(s):  
M. Schnitzer ◽  
J. G. Desjardins
Keyword(s):  
Analytical Data ◽  
Group Analysis ◽  
Organic Soil ◽  
Sodium Pyrophosphate ◽  
Organic Soils ◽  
Oh Groups ◽  
Functional Group Analysis ◽  
Phenolic Oh Groups

Carboxyls, phenolic and alcoholic hydroxyls, carbonyls, and methoxyls were determined in 20 organic soil samples that ranged from peats, mucky peats, peaty mucks to mucks. The absorbance of a sodium pyrophosphate extract of each sample served as basis for grouping the samples into three broad classes: (i) peat, (ii) mucky peat – peaty muck, and (iii) muck.A statistical analysis of the analytical data showed that (a) the determination of COOH and of OCH3 groups distinguished between the peat and muck classes, and (b) measurement of alcoholic OH groups differentiated between the peat class and the intermediate class and between the peat and muck classes. The experimental data indicated that increased humification was associated with increases in COOH, OCH3, and to a lesser extent of C==O groups, increased solubility in dilute sodium pyrophosphate solution, decreases in alcoholic OH groups but practically no changes in phenolic OH groups. It is suggested that functional group analysis could be used as a supplementary diagnostic tool for assessing the degree of humification of organic matter in organic soils and could thus serve as an aid in the classification of organic soils.

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