Biomonitoring of heavy metals and air quality in Cordoba City, Argentina, using transplanted lichens.

The objective of the present study was to test the concentrations of some elements in the transplanted lichen Usnea amblyoclada transplanted in Córdoba, Argentina, and to investigate the relative air quality of the area as indicated by a Pollution Index. Analyses of Cu, Co. Pb, Fe, Ni, Mn, S and Zn in addition to analyses of physiological parameters were performed after the transplantation period. No significant differences were observed among the sampling stations for the physiological parameters, except the dry weight/fresh weight ratio. The concentration of most elements was similar to or lower than those found in non-polluted and even polluted areas. The significant correlation found between Cu, Pb and Zn with the content of hydroperoxy conjugated dienes suggests an important oxidative effect probably caused by these ions. The distribution patterns of the elements were quite similar, with maximum values around a cement plant and the metallurgical industries. The Pollution Index distribution pattern does not coincide with the elements distribution, due to the fact that the index values probably reflected the emissions of gaseous phytotoxic pollutants.

[1]  M. Agrawal,et al.  Environmental Pollution and Plant Responses , 1999 .

[2]  L. Olcese,et al.  Unexpected High Levels of Ozone Measured in Córdoba, Argentina , 1998 .

[3]  J. Garty,et al.  Correlations between the concentration of adenosine tri phosphate, chlorophyll degradation and the amounts of airborne heavy metals and sulphur in a transplanted lichen , 1988 .

[4]  David L. Hawksworth,et al.  Lichens as pollution monitors , 1977 .

[5]  Bernd Markert,et al.  Plants as biomonitors : indicators for heavy metals in the terrestrial environment , 1993 .

[6]  S. Schulte-hostede,et al.  Air pollution and plant metabolism , 1988 .

[7]  M. Galun,et al.  Correlation between chlorophyll degradation and the amount of some elements in the lichen Ramalina duriaei (de not.) Jatta , 1985 .

[8]  M. L. Pignata,et al.  The Influence of Air Pollution on Soluble Proteins, Chlorophyll Degradation, MDA, Sulphur and Heavy Metals in A Transplanted Lichen , 1994 .

[9]  M. L. Pignata,et al.  Comparison among air pollutants, meteorological conditions and some chemical parameters in the transplanted lichen Usnea amblyoclada. , 2001, Environmental pollution.

[10]  M. Freitas,et al.  Distribution in Portugal of some pollutants in the lichen Parmelia sulcata. , 1999, Environmental pollution.

[11]  R. Bargagli,et al.  Air pollution monitoring by lichens in a small medieval town of central Italy , 1997 .

[12]  K. Friese,et al.  Trace elements : their distribution and effects in the environment , 2000 .

[13]  J. Garty,et al.  The amounts of Ni, Cr, Zn, Pb, Cu, Fe and Mn in some lichens growing in Switzerland , 1987 .

[14]  E. Steinnes,et al.  Atmospheric trace element deposition: principal component analysis of ICP-MS data from moss samples. , 1995, Environmental pollution.

[15]  J. Garty.  Comparisons between the metal content of a transplanted lichen before and after the start-up of a coal-fired power station in Israel , 1988 .

[16]  S. Eisenreich.  Atmospheric pollutants in natural waters , 1981 .

[17]  M. L. Pignata,et al.  Comparative biomonitoring of atmospheric quality in five zones of Córdoba city (Argentina) employing the transplanted lichen Usnea sp. , 1998 .

[18]  J. Garty,et al.  Accumulation of airborne elements from vehicles in transplanted lichens in urban sites , 1996 .

[19]  J. E. Sloof.  Lichens as quantitative biomonitors for atmospheric trace-element deposition, using transplants , 1995 .