scholarly journals Impact of air pollution on the occurrence of Rhytisma acerinium "tar-spot" on mapie leaves

2011 ◽  
Vol 76 (4) ◽  
pp. 333-343 ◽  
Author(s):  
Piotr Kosiba
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Environmental Pollution ◽  
Chemical Elements ◽  
Urban Agglomeration ◽  
Acer Platanoides ◽  
Tar Spot ◽  
Air Pollutions ◽  
Two Factors

The aim of the study was, to find out whether the occurrence of <em>Rhytisma acerinium</em> and the variability of numbers of the "tar-spot" fungus on <em>Acer platanoides</em> leaves depend on the degree of environmental pollution. <em>A significant</em> variability was found between sites in relation to contents of chemical elements in soils, leaves and numbers of "tar-spots". The similarity of sites presented in dendrograms classified them as industrial, urban-agglomeration and vehicle-transport areas. The factor and PCA analyses showed that two factors differentiate the soil of the sites in respect of Fe, Cu, Co, Mo, Cr, Ni, Cd and N, S, Mn, Pb. In case of leaves of <em>A. platanoides</em> populations differentiate them in respect of N, S, Fe, Pb, Zn, Co, Be, Cr, Cd and Mn, Cu, Mo. The different air pollutions affect significantly the numbers of "tar-spots" on leaves. Sites with the highest contents of elements do not show "tar-spots", and the factors restricting their occurrence are the high contents, mainly of N, S (NO<sub>X</sub>, SO<sub>X</sub>) and heavy metals. In sites, with the lowest contents of these elements massive infections take place. The occurrence of <em>R. acerinium</em> corresponding with the level of site pollution can be used as a tool for evaluation of the degree of environmental pollution.

scholarly journals SOURCES OF AIR POLLUTION, ENVIRONMENTAL IMPACTS AND EXPLOITATION OF NATURAL RESOURCES IN KOSOVO

2017 ◽  
Vol 5 ◽  
pp. 1275-1280
Author(s):  
Adem Dreshaj ◽  
Bedri Millaku ◽  
Sabiha Shala ◽  
Afrim Selimaj ◽  
Halit Shabani
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Natural Resources ◽  
Environmental Pollution ◽  
Greenhouse Gas ◽  
Industrial Waste ◽  
Mining Activities ◽  
Environmental Deterioration ◽  
The Earth ◽  
Life On Earth

: Concerns and uncertainty about the life on Earth are constantly growing, today greater than ever before, as a result of human activity. In this regard, the major dangers that threaten our planet include uncontrolled utilization of natural resources, environmental deterioration and environmental pollution over Earth's regenerating possibilities. Whereas, the main causes of pollution are deforestation, erosion, greenhouse gas emissions, poor urban and industrial waste control and uncontrolled mining activities. All of these lead to serious consequences for life on Earth, because of the natural resources of the soil and its capacity to absorb waste gases (CH4), and the release of heavy metals such as Pb, Zn, Cd, Cu, Fe and As, which are the biggest soil pollutants. The Earth is being cemented, and its regenerating capacities are being diminished every day.

scholarly journals Self-Organizing Feature Maps and selected conventional numerical methods for assessment of environmental quality

2011 ◽  
Vol 78 (4) ◽  
pp. 335-343 ◽  
Author(s):  
Piotr Kosiba
Keyword(s):  
Environmental Quality ◽  
Chemical Elements ◽  
Biological Indicator ◽  
Acer Platanoides ◽  
Habitat Conditions ◽  
Feature Maps ◽  
Morphometric Traits ◽  
Significant Differentiation ◽  
Environmental Status ◽  
Tar Spot

The investigations concerned sites of <em>Acer platanoides</em> L. infected or not by <em>Rhytisma aceriniu</em> (Pers.) Fr. The aim of the study was to check the occurrence of <em>R. acerinium</em>, and whether it reflects the environmental status. Furthermore, an analysis was carried out to find out whether the applied SOFM offers additional advantages to solve problems in relation to conventional methods. Concentrations of selected elements in soils and leaves, and leaf and "tar-spot" morphometric traits were also measured. A significant differentiation was found between sites in relation to the analyzed traits. It appeared, that sites showing lower concentrations of chemical elements and proper developmental habitat conditions massive infections take place. The study showed that <em>R. acerinium</em> is a good biological indicator for assessment of environmental status. The applied, conventional statistical methods, SOFM and image techniques showed similar, but not identical results for assessment of environmental quality using <em>R. acerinium</em>. SOFM appeared to be more useful for ordination of results and ought to be taken into account as a proper tool of estimation of various plants and their biotopes.

scholarly journals ECOLOGICAL AND GEOCHEMICAL SPECIFICS OF SOIL AND PLANT COVERING OF URBAN LANDSCAPES (IN THE TOWN OF BROVARY AS AN EXAMPLE)

2021 ◽  
Vol 51 (2) ◽  
pp. 214-222
Author(s):  
Anastasiya Splodytel
Keyword(s):  
Heavy Metals ◽  
Urban Soils ◽  
Betula Pendula ◽  
Populus Deltoides ◽  
Chemical Elements ◽  
Transport Infrastructure ◽  
Alnus Incana ◽  
Acer Platanoides ◽  
Absorption Coefficients ◽  
The City

The results of the pollutants content research in urbanized landscapes soils of Ukraine (on the example of Brovary city, Kyiv region) were shown. The total and mobile contents data of chemical elements (Ni, Co, Zn, V, Pb, Cr, Cu) were obtained and analyzed using the methods of landscape-geochemical studies, analytical and statistical methods. The dependences of the vegetation resistance in cities to the level of soil cover contamination and the degree of heavy metals income have been established. The geochemical characteristics (such as the value of the accumulation coefficients; concentration of soil and vegetation cover; index of biogeochemical activity of the species within Brovary city) were analyzed. Throughout most of the city territory, the level of soil contamination is above average. Soils are characterized by the following association of heavy metals: Cu> Pb> Zn> Co> Cr> V> Mo> Mn> Ni. The dominant association is distributed heterogeneous throughout the city, forming geochemical anomalies depending on the source of contamination. The maximum technogenic load was recorded in urban soils areas within zones of transport infrastructure, production and communal-warehouse facilities.Woody vegetation is the most actively absorbed copper, manganese from the soil, and the least intensively absorbed chromium, vanadium and nickel. The biogeochemical activity coefficient of the research species is the following: Acer platanoides - 7,26, Betula pendula Roth. - 7,07, and Populus deltoides - 7,05, Pínus sylvestris - 1.32 and Alnus incana - 3.37. The biological absorption coefficients of manganese and copper are high because these metals have the ability to form strong complexes with organic matter. Biological absorption coefficients of vanadium and chromium is low for the researched plant species because these chemical elements are immobile in soils. For the city of Brovary, the presence of polyelemental contamination of soil and vegetation has been established. According to the indicators of the gross content of VM, the main pollutants are Cu, Zn, Pb and Mn. Concentrations of gross and mobile forms of VM exceed background values ​​and maximum concentration limits in 17-28 times. The maximum of man-caused load was recorded in the urban soils of the transport infrastructure zone and the zone of production and communal-warehouse facilities. Regularities of formation of elemental composition of plants of urban areas undergo significant changes in comparison with natural conditions, which is due to the strengthening of the role of foliar absorption of pollutants from the air and their high content in soils. The greatest ability to bioaccumulate has a male thyroid (Dryopteris filix-mas Schott) and birch (Convolvulus arvensis). The highest coefficient of biogeochemical activity of the studied species is Acer platanoides - 7.26, hanging birch (Betula pendula Roth.) - 7.07 and Canadian poplar (Populus deltoides) - 7.05, the lowest - Scots pine (Pínus sylvеstris ) - 1.32 and gray alder (Alnus incana) - 3.37. Weakly and very weakly, most of the studied plant species capture vanadium and chromium, which are relatively sedentary in the soil. Further research is needed to analyze the physicochemical parameters of soils, the coefficients of transition of metals to plants relative to their content in organic and mobile form in order to establish the relationships that characterize the process of translocation of chemical elements. Keywords: landscape-geochemical conditions, heavy metals, soils, vegetation.

scholarly journals Ecological and hygienic assessment of environment in the town with glass packaging production

2019 ◽  
Vol 135 ◽  
pp. 01044
Author(s):  
Anton Martsev ◽  
Oleg Selivanov
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Environmental Pollution ◽  
Glass Production ◽  
Pollution Source ◽  
Toxic Substances ◽  
Study Objective ◽  
Industrial Enterprises ◽  
Sanitary Condition ◽  
Vladimir Region

The population of the industrialized centers is constantly affected by the complex of technogenic factors of environmental pollution. The leading technogenic factor is known to impact negatively the population health is air pollution. Technogenic air pollution in cities is caused by the emissions of contaminants both as a result of motor transportation and industrial enterprises. This impact is one of the main reasons for the public health deterioration. Glass production is among such sources. Air pollution with toxic substances causes soil pollution, which ecological and sanitary condition can serve as a marker of environmental pollution rate. The study objective was the ecological and hygienic environment assessment of the Gorokhovets town in the Vladimir region, where modern glass empties production is functioning. Statistics of the regional official services in Gorokhovets district of the Vladimir region, as well as data from our own research have been applied for the research. Heavy metals in soil have been detected by x-ray fluorescence method applying spectrometer “Spectroscan MAX-G”. Anions content in soils was determined using water extracts from soil samples by capillary electrophoresis applying device “Kapel-104”. Results. The statistics published by the official regional state services on the gross amount of air pollutants emissions have been analyzed. Data on the heavy metals (HM) and anions content in various parts of Gorokhovets have been obtained. Conclusion. The ecologic-hygienic assessment of environment allowed to reveal that vehicles make the largest contribution to the air pollution in Gorohovets area in recent years. The main stationary air pollution source n is the glass works “Rusdzham” as first of all nitrogen oxides are its by-products.

INFLUENCE OF AIR POLLUTION ON FOREST ECOSYSTEMS: ECOLOGICAL IMPACT OF HEAVY METALS

2010 ◽  
Vol 9 (10) ◽  
pp. 1401-1405
Author(s):  
Mihaela Budianu ◽  
Brindusa Mihaela Robu ◽  
Matei Macoveanu
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Forest Ecosystems ◽  
Ecological Impact

scholarly journals Meteorological Variables and Synoptic Patterns Associated with Air Pollutions in Eastern China during 2013–2018

2020 ◽  
Vol 17 (7) ◽  
pp. 2528 ◽  
Author(s):  
Zhujun Dai ◽  
Duanyang Liu ◽  
Kun Yu ◽  
Lu Cao ◽  
Youshan Jiang
Keyword(s):  
Air Pollution ◽  
Eastern China ◽  
Meteorological Condition ◽  
Temperature Inversion ◽  
Meteorological Conditions ◽  
Meteorological Variables ◽  
Synoptic Situation ◽  
Factors Affecting ◽  
Air Pollutions ◽  
Meteorological Elements

Steady meteorological conditions are important external factors affecting air pollution. In order to analyze how adverse meteorological variables affect air pollution, surface synoptic situation patterns and meteorological conditions during heavy pollution episodes are discussed. The results showed that there were 78 RPHPDs (regional PM2.5 pollution days) in Jiangsu, with a decreasing trend year by year. Winter had the most stable meteorological conditions, thus most RPHPDs appeared in winter, followed by autumn and summer, with the least days in spring. RPHPDs were classified into three patterns, respectively, as equalized pressure (EQP), advancing edge of a cold front (ACF) and inverted trough of low pressure (INT) according to the SLP (sea level pressure). RPHPDs under EQP were the most (51%), followed by ACF (37%); INT was the minimum (12%). Using statistical methods and meteorological condition data on RPHPDs from 2013 to 2017 to deduce the thresholds and 2018 as an independent dataset to validate the proposed thresholds, the threshold values of meteorological elements are summarized as follows. The probability of RPHPDs without rain was above 92% with the daily and hourly precipitation of all RPHPDs below 2.1 mm and 0.8 mm. Wind speed, RHs, inversion intensity(ITI), height difference in the temperature inversion(ITK), the lower height of temperature inversion (LHTI) and mixed-layer height (MLH) in terms of 25%–75% high probability range were respectively within 0.5–3.6 m s−1, 55%–92%, 0.7–4.0 °C 100 m −1, 42–576 m, 3–570 m, 200–1200 m. Two conditions should be considered: whether the pattern was EQP, ACF or INT and whether the eight meteorological elements are within the thresholds. If both criteria are met, PM2.5 particles tend to accumulate and air pollution diffusion conditions are poor. Unfavorable meteorological conditions are the necessary, but not sufficient condition for RPHPDs.

Primary Teeth and Hair as Indicators of Environmental Pollution

2016 ◽  
Vol 40 (2) ◽  
pp. 152-155 ◽  
Author(s):  
TE Shishniashvili ◽  
NN Suladze ◽  
VV Margvelashvili
Keyword(s):  
Environmental Pollution ◽  
Toxic Elements ◽  
Chemical Elements ◽  
Epidemiological Survey ◽  
Essential Elements ◽  
World Health ◽  
Dental Tissues ◽  
Dental Hard Tissues ◽  
Hard Tissues ◽  
Health Organization

Objectives: To study the influence of environmental pollution on the mineralization of dental hard tissues by using biosubstrates: teeth and hair. :Study design: At the first stage epidemiological survey was conducted in polluted and less polluted areas of Tbilisi (Georgia). We studied 525 children aged 3 and 4 years. Caries prevalence and intensity was defined by the methodology of World Health Organization. At the second stage the chemical elements content was studied in hair and teeth hard tissues of 24 children by X - ray fluorescent spectroscopy method. Results: The prevalence of dental caries in the polluted region was 46%, caries intensity − 1.92 (± 2.842). In the less polluted region prevalence was 37%, caries intensity − 1.47 (± 2.571). These data are statistically reliable (p &lt; 0.05). The study of hair and tooth tissues showed that the toxic elements (Pb, Hg, Sn, Ti) content in these tissues was higher in environmentally unfavorable than in favorable conditions. Conclusion: Hair and dental tissues can be used as indicators of environmental pollution. Our survey showed that toxic elements content in dental hard tissues was higher and the level of essential elements was less in polluted than in less polluted areas of Tbilisi.

Effects of ectoparasites on breeding success of great tits (Parus major) and pied flycatchers (Ficedula hypoleuca) in an air pollution gradient

1994 ◽  
Vol 72 (4) ◽  
pp. 624-635 ◽  
Author(s):  
Tapio Eeva ◽  
Esa Lehikoinen ◽  
Jorma Nurmi
Keyword(s):  
Heavy Metals ◽  
Air Pollution ◽  
Breeding Success ◽  
Detrimental Effect ◽  
Bird Species ◽  
Parus Major ◽  
Ficedula Hypoleuca ◽  
Nest Size ◽  
Minor Importance ◽  
Ceratophyllus Gallinae

Numbers of ectoparasitic blow fly (Protocalliphora azurea) larvae (Diptera: Calliphoridae), adult and larval hen fleas, Ceratophyllus gallinae (Siphonaptera: Ceratophyllidae), and other nest-dwelling insects were counted from the nests of the great tit, Parus major, and the pied flycatcher, Ficedula hypoleuca, in southwestern Finland around a factory complex emitting large quantities of sulphuric oxides and heavy metals. Protocalliphora azurea larvae were more frequently found in the nests of P. major than in those of F. hypoleuca. The prevalence of P. azurea larvae tended to be lower in polluted areas. The number of P. azurea larvae correlated positively with nest size and brood size of P. major. This may be caused by difficulties in sanitation of large and crowded nests. The numbers of fleas and their larvae were negatively affected by moisture in the nests. Nests of F. hypoleuca contained more adult fleas in polluted areas. This may indicate reduced resistance of birds exposed to heavy metals, but other possibilities are also discussed. We found a detrimental effect of P. azurea larvae on the growth of P. major nestlings, and an effect of fleas on mortality of F. hypoleuca nestlings, but these effects were not enhanced by air pollution. We conclude that the ectoparasites studied, at densities observed in our study area, are of minor importance in determining the breeding success of these two bird species.

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