scholarly journals Using of epiphytic lichens for bioindication of air pollution in Vranje

2004 ◽  
Vol 56 (3-4) ◽  
pp. 139-143 ◽  
Author(s):  
S. Stamenkovic ◽  
Mirko Cvijan

Epiphytic lichens were used dor bioindication of air pollution in the city of Vranje for the first time. In 43 investigated places, the authors established the presence of 38 lichen taxa from 20 genera. By calculating the index of atmospheric purity (IAP), they established three zones with different air pollution levels (a "lichen desert zone", a "transitional zone", and a "normal zone") and two subzones (a "narrow transitional zone", and a "wider transitional zone"). The species Melanelia exasperatula, M. glabra, Lecanora allophana, Lecidella elaechroma, Ochrolechia sp, Ramalina sp., and Parmelina quercina were established as the most sensitive. On the other hand, Phaeophyscia orbicularis, Xanthoria parietina, and Parmelia sulcata were the most tolerant.

2003 ◽  
Vol 55 (3-4) ◽  
pp. 133-139 ◽  
Author(s):  
S. Stamenkovic ◽  
Mirko Cvijan

Bioindication of air pollution in the city of Nis, by using epiphytic lichens, was performed for the first time in 1992. In this paper the authors present the results of repeated investigations in 2002, by using new, modern method, and their comparison with the former investigations. In repeated investigations, on 59 investigated spots, the authors established the presence of 42 lichen taxa, 3 zones with different air pollution level ("lichens desert", "transitional zone" and "normal zone") and two subzones ("narrow transitional zone" and "wider transitional zone"), as well. As the most sensitive, some Melanelia-species (M. elegantula, M. exasperata, M. glabra), Evernia prunastr and Flavoparmelia caperata, were established while on the other hand, Phaeophyscia orbicularis, Physcia adscendens, Ph. stellaris and Lecanora argentata were the most tolerant.


2010 ◽  
Vol 62 (3) ◽  
pp. 643-648 ◽  
Author(s):  
S. Stamenkovic ◽  
M. Cvijan ◽  
Mirjana Arandjelovic

Air pollution detection in Dimitrovgrad has not been done yet. In this work different lichen have been used as a bioindication to establish different air pollution levels. At 18 investigated points 22 lichen taxa have been found. Using the Index of Atmospheric Purity (IAP) it has been found that there are 3 different air pollution zones in Dimitrovgrad: 'lichen desert', 'transitional' and 'normal zone'. The most sensitive lichen taxa in Dimitrovgrad are Evernia prunastra, Ochrolechia pallescens, Parmelia sulcata, and Physcia tenella and the most tolerant are Phaeophyscia orbicularis, Physcia adscendens, Physconia distorta, Physconia grisea, and Xanthoria parietina. .


2013 ◽  
Vol 65 (3) ◽  
pp. 893-897 ◽  
Author(s):  
S.M. Stamenkovic ◽  
Svetlana Ristic ◽  
Tatjana Djekic ◽  
Tatjana Mitrovic ◽  
Rada Baosic

Air quality investigations have not been undertaken in Blace until now. Identifying the presence of different types of epiphytic lichens was performed in the summer 2012 in Blace (southeastern Serbia), and selected rural settlements around Blace, in order to establish the air quality of the area. The analysis of samples from described localities indicated the presence of 25 lichen taxa from 19 genera. Using the Index of Atmospheric Purity (IAP), it was found that there are 2 different air pollution zones in Blace: ?lichen desert? and ?transitional? or ?struggle zone?, which includes the periphery of the city. In these zones the air is moderately polluted. In the urban area of Blace there is no ?normal? zone, but one was detected in the surrounding rural areas.


1993 ◽  
Vol 25 (2) ◽  
pp. 165-173 ◽  
Author(s):  
S. A. Pirintsos ◽  
D. Vokou ◽  
J. Diamantopoulos ◽  
D. J. Galloway

AbstractUsing the response of epiphytic lichens in and around the city of Thessaloniki (Greece) to an air pollution source, the value of sampling lichens at breast height and the base of trees was compared. The data obtained were processed with detrended correspondence analysis and polythetic divisive two-way indicator species analysis, and IAP (index of atmospheric purity) values were estimated for each experimental site. The tree base IAP values were higher than those at breast height, reflecting the higher number of species present, the generally increased cover and frequency of occurrence. IAP values at the two sampling heights suggest a linear relationship and the same holds for the tree base IAP values and the first axis ordination scores. Sampling at the base resulted in better discrimination of sites, and may, therefore, offer more accurate monitoring of changes induced by air pollution.


Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4648 ◽  
Author(s):  
Wilmar Hernandez ◽  
Alfredo Mendez ◽  
Angela Maria Diaz-Marquez ◽  
Rasa Zalakeviciute

In this article, a robust statistical analysis of particulate matter (PM2.5) concentration measurements is carried out. Here, the region chosen for the study was the urban park La Carolina, which is one of the most important in Quito, Ecuador, and is located in the financial center of the city. This park is surrounded by avenues with high traffic, in which shopping centers, businesses, entertainment venues, and homes, among other things, can be found. Therefore, it is important to study air pollution in the region where this urban park is located, in order to contribute to the improvement of the quality of life in the area. The preliminary study presented in this article was focused on the robust estimation of both the central tendency and the dispersion of the PM2.5 concentration measurements carried out in the park and some surrounding streets. To this end, the following estimators were used: (i) for robust location estimation: α-trimmed mean, trimean, and median estimators; and (ii) for robust scale estimation: median absolute deviation, semi interquartile range, biweight midvariance, and estimators based on a subrange. In addition, nonparametric confidence intervals were established, and air pollution levels due to PM2.5 concentrations were classified according to categories established by the Quito Air Quality Index. According to these categories, the results of the analysis showed that neither the streets that border the park nor the park itself are at the Alert level. Finally, it can be said that La Carolina Park is fulfilling its function as an air pollution filter.


1990 ◽  
Vol 22 (2) ◽  
pp. 163-171 ◽  
Author(s):  
D. Roberts ◽  
D. Zimmer

AbstractThe composition and richness of the microfauna on lime trees was surveyed in relation to the distribution and cover of lichens in Belfast. Parameters used to help interpret the results included distance from the city centre and available data on air quality. The percentage epiphyte cover on the trunks of lime trees was significantly correlated with distance from the city centre whereas that on tree bases as not. In contrast, the number of microfaunal species revealed strong positive correlations with distance for both the bases and the trunks of trees. Most of this increase in microfaunal species richness towards rural areas was due to protistans which are thus proposed as useful bioindicators of air pollution. The total species richness of fauna showed slight negative correlation with smoke but not SO2 levels.


Author(s):  
G. Gorghiu ◽  
Carmen Leane Nicolescu ◽  
Elena Ivaşcu

Nowadays, the management of the air pollution is a very important key for a strong and sustainable development process in the areas of Dambovita county and Targoviste city. It is known that in the industrial part of Targoviste, two ferrous industrial plants are the main pollutants with powders and one enterprise is responsible by the pollution with exhausted gases. Near the city, in Doicesti village, a power coal-based plant is the major pollutant with powders and exhausted gases. More than that, the heavy road traffic remains one of the most important responsible for the atmospheric pollution. Estimating the pollution levels became an important goal for the factors involved in the environmental protection. Trying to join this kind of research, the paper presents some results concerning the trends of the air pollution level in the industrial area of Targoviste city, proposing also some kind of models. Those models were deducted by the regression calculus and linear, polynomial, logarithmic, exponential and power equations were used for expressing realistic or non-realistic models. Traditional for the regression calculus, the coefficient of determination showed how closely the estimated values for the trend-lines correspond to the analyzed data.


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