CONTENT OF HEAVY METALS (Pb, Zn, AND As) IN ATMOSPHERIC AEROSOL SAMPLES IN THE CENTRAL SOGD REGION (KHUJAND)

2021 ◽  
pp. 167-180
Author(s):  
Mukhamadi Nuridinovich Rakhmatov ◽  
Sabur Fuzailovich Abdullaev
Keyword(s):  
Heavy Metals ◽  
Atmospheric Aerosol

scholarly journals Air Quality during New Year’s Eve: A Biomonitoring Study with Moss

Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 975
Author(s):  
Paweł Świsłowski ◽  
Zbigniew Ziembik ◽  
Małgorzata Rajfur
Keyword(s):  
Heavy Metals ◽  
Air Quality ◽  
Atmospheric Aerosol ◽  
Point Sources ◽  
Accumulation Factor ◽  
Active Biomonitoring ◽  
Aerosol Pollution ◽  
New Year’S Eve ◽  
Short And Long Term

Mosses are one of the best bioindicators in the assessment of atmospheric aerosol pollution by heavy metals. Studies using mosses allow both short- and long-term air quality monitoring. The increasing contamination of the environment (including air) is causing a search for new, cheap and effective methods of monitoring its condition. Once such method is the use of mosses in active biomonitoring. The aim of the study was to assess the atmospheric aerosol pollution with selected heavy metals (Ni, Cu, Zn, Cd, Hg and Pb) from the smoke of fireworks used during New Year’s Eve in the years 2019/2020 and 2020/2021. In studies a biomonitoring moss-bag method with moss Pleurozium schreberi (Willd. ex Brid.) Mitt. genus Pleurozium was used. The research was conducted in the town Prószków (5 km in south direction from Opole, opolskie voivodship, Poland). The moss was exposed 14 days before 31 December (from 17 to 30 of December), on New Year’s Eve (31 December and 1 January) and 2 weeks after the New Year (from 2–15 January). Higher concentrations of analysed elements were determined in samples exposed during New Year’s Eve. Increases in concentrations were demonstrated by analysis of the Relative Accumulation Factor (RAF). The results indicate that the use of fireworks during New Year’s Eve causes an increase in air pollution with heavy metals. In addition, it was shown that the COVID-19 induced restrictions during New Year’s Eve 2020 resulted in a reduction of heavy metal content in moss samples and thus in lower atmospheric aerosol pollution with these analytes. The study confirmed moss usefulness in monitoring of atmospheric aerosol pollution from point sources.

Particulate matter and heavy metals in the atmospheric aerosol from Cartagena, Spain

2000 ◽  
Vol 34 (29-30) ◽  
pp. 5161-5167 ◽  
Author(s):  
S Moreno-Grau ◽  
A Pérez-Tornell ◽  
J Bayo ◽  
J Moreno ◽  
J.M Angosto ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Particulate Matter ◽  
Atmospheric Aerosol

ANTHROPOGENIC COMPONENT OF ATMOSPHERIC AEROSOL SUBSTANCE OF ZAPORIZHZHIA CITY

2019 ◽  
pp. 63-69
Author(s):  
Ye. Nasedkin ◽  
G. Ivanova ◽  
S. Stadnichenko ◽  
O. Andreiev ◽  
V. Morozenko
Keyword(s):  
Heavy Metals ◽  
Chemical Composition ◽  
Atmospheric Aerosol ◽  
General Characteristic ◽  
Integrated Approach ◽  
Atmospheric Flows ◽  
Anthropogenic Component ◽  
Nickel Copper ◽  
Lead Zinc ◽  
Detrital Particles

The article is devoted to the study of the influence of technogenic processes on the environment, in particular the determination of the contribution of a substance formed in the course of economic activity to the total composition of the solid component of atmospheric aerosol. The actual material was obtained on the basis of the system monitoring of surface air flows within such a powerful industrial center as Zaporizhzhia city. Samples of suspended atmospheric matter accumulated on the filter textile were taken monthly for two years. Parallel continuous observations of hydrometeorological factors (speed, direction, duration of winds, rainfall) provided an integrated approach to the development and synthesis of research results. Field observations and laboratory studies determined a number of patterns in the distribution of the sedimentation substance in the air and the interrelations of the anthropogenic and natural constituents of the substance. The publication describes the features of the chemical composition and morphology of detrital particles, the entry of which into the air caused by technogenic processes, as well as the condensation component of the aeolian suspension, the origin of which is associated with high-temperature processes. The changes in the ratio of the natural / anthropogenic components in the material composition of the aerosol under the influence of external factors (natural and anthropogenic) were investigated. These changes also affect the redistribution of quantitative ratios between the condensed and dispersed components of the aeolian suspension. At the same time, the detrital component can reach the aleuritic dimension, the iron content exceeds 90 %, and the proportion of impurities of a number of ferrous and heavy metals, in particular titanium, manganese, nickel, copper, lead, zinc can reach 40% or more. Heavy metals are also found in the form of separate detrital and condensation formations, where their content varies in the range of 50 – 70 %. Analysis of the condensation component in the aerosol samples for the period of the research allowed us to give a general characteristic of it and to carry out a preliminary classification by chemical composition. The possibility of determining the focus of atmospheric pollution in terms of the shape, chemical composition and size of aerosols, seasonal factors and characteristics of atmospheric flows were also outlined.

scholarly journals SOBRE LA PRESENCIA DE ALGUNOS METALES PESADOS EN LA ATMOSFERA DE LA CIUDAD DE MEXICO

1981 ◽  
Vol 20 (1) ◽  
pp. 41-54
Author(s):  
J. L. Bravo ◽  
S. Salazar ◽  
Y. Falcón
Keyword(s):  
Heavy Metals ◽  
Seasonal Variation ◽  
Mexico City ◽  
Atmospheric Aerosol ◽  
Atmospheric Radiation ◽  
Absorption Method ◽  
Atmospheric Turbidity ◽  
Log Normal ◽  
Log Normal Distribution ◽  
Cu And Zn

The concentrations of Cd and Pb at Ciudad Universitaria have increased by 1.4 and 3.6, times respectively, during the last two years.  Cu, Zn and Cd show a seasonal variation and follow the atmospheric turbidity pattern of Mexico City (19o20' N, 2,268 m. a. s. l.).  Fe and Pb behave randomly during the whole year.  The concentrations of Fe, Cd and Pb show a log-normal distribution; those of Cu and Zn differe from this type of distribution.  These results were obtained from atmospheric aerosol samples collected during 14 months (July 1979 - August 1980) at the Atmospheric Radiation Observatory of Ciudad Universitaria, located in the southern part of Mexico City.  59 samples selected at random were analyzed by the atomic absorption method and the concentrations of five heavy metals were determined.  

scholarly journals Biomonitoring of Atmospheric Aerosol with the use of Apis mellifera and Pleurozium schreberi

2019 ◽  
Vol 24 (1-2) ◽  
pp. 107-116
Author(s):  
Zuzanna Konopka ◽  
Paweł Świsłowski ◽  
Małgorzata Rajfur
Keyword(s):  
Heavy Metals ◽  
Honey Bees ◽  
Atmospheric Aerosol ◽  
Absorption Spectrometry ◽  
Pleurozium Schreberi ◽  
Environment Pollution ◽  
Limit Of Quantification ◽  
Active Biomonitoring ◽  
Flame Atomic Absorption ◽  
Aerosol Pollution

Abstract The aim of the carried out research was to assess atmospheric aerosol pollution levels in the area of three apiaries located in the Opole Province and to analyse heavy metals pollution in bee honey and western honey bees. Pleurozium schreberi moss was used in analysing atmospheric aerosol pollution with the active biomonitoring method, whereas heavy metals levels were determined with flame atomic absorption spectrometry method (F-AAS). Relative Accumulation Factors (RAF) were used in determining increases of analytes concentrations in the moss samples. As a result of the carried out study, the following conclusions have been reached: mosses are good bioindicators of environment pollution thanks to their sorption qualities, similarly to honey bees, which are a bioindicator of environment pollution. According to the Commission Regulation of European Union of 2015 regarding the maximum levels of lead in certain foods (honey), it should not exceed 0.1 mg/kg. On the basis of the carried out study it can be stated that the concentration of this analyte in the analysed honey was below the limit of quantification of the applied analytical method.

scholarly journals Passive and Active Biomonitoring of Atmospheric Aerosol with the Use of Mosses

2021 ◽  
Vol 28 (2) ◽  
pp. 163-172
Author(s):  
Nikola Słonina ◽  
Paweł Świsłowski ◽  
Małgorzata Rajfur
Keyword(s):  
Heavy Metals ◽  
Atmospheric Aerosol ◽  
Atomic Spectrometry ◽  
Pleurozium Schreberi ◽  
Active Biomonitoring

Abstract The aim of the carried out research was passive and active biomonitoring of woodlands in the Opole province. Pleurozium schreberi mosses were used during the research, in which the following heavy metals concentrations were determined: Mn, Fe, Ni, Cu, Zn, Cd and Pb. Concentrations were determined with absorption atomic spectrometry (AAS). On the basis of the carried out research, concentrations of heavy metals in moss samples used in the passive and active biomonitoring methods were compared. The obtained results indicate that Pleurozium schreberi mosses can be successfully used in both passive and active biomonitoring, however, these methods should not be used interchangeably in a defined study area. On the basis of carried out research it was determined that the applied biomonitoring methods can be supplementary.

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

Nicotianamine: mediator of transport of iron and heavy metals in the phloem?

1993 ◽  
Vol 88 (3) ◽  
pp. 522-529 ◽  
Author(s):  
Udo W. Stephan ◽  
Gunter Scholz
Keyword(s):  
Heavy Metals
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