Effect of pollutants emitted by different urban‐industrial sources on the chemical response of the transplantedRamalina ecklonii(Spreng.) Mey. & Flot

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Abstract
Lichen Ramalina ecklonii (Spreng.) Mey. & Flot. was transplanted to 20 biomonitoring sites in an urban‐industrial region including a power station. Pigments, hydroperoxy conjugated dienes, malondialdehyde, soluble protein and sulphur were quantified in the lichen samples. A pollution index was calculated, based on certain chemical parameters. The sites were established according to environmental conditions, such as traffic, industries and distance from the power station. Chemical responses associated with street traffic were changes in sulphur content and pollution index, while in response to the power station, there were variations in hydroperoxy conjugated dienes and sulphur content. The changes on pollution index values point to a synergistic effect of air pollutants emitted by traffic and power plant on the chemical response of the biomonitor.