Anatomical, physiological, and chemical alterations in lichen (Parmotrema tinctorum (Nyl.) Hale) transplants due to air pollution in two cities of Brahmaputra Valley, India
| Autor: | Rebecca Daimari, Sanjeeva Nayaka, M. A. Jafar Mazumder, Raza Rafiqul Hoque, Pranamika Bhuyan, Sharfaa Hussain |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Pollutant
Chlorophyll content 010504 meteorology & atmospheric sciences Air pollution General Medicine 010501 environmental sciences Management Monitoring Policy and Law Biology medicine.disease_cause 01 natural sciences Pollution Moderate extent Parmotrema tinctorum Environmental chemistry Biomonitoring medicine Ecotoxicology Lichen 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Environmental Monitoring and Assessment. 193 |
| ISSN: | 1573-2959 0167-6369 |
| Popis: | The lichen species Parmotrema tinctorum (Nyl.) Hale was transplanted in two cities—Tezpur (small) and Guwahati (large)—of the Brahmaputra Valley to assess the impact of air pollution on the anatomy and physiology, and accumulation of pollutants. Significant damage to the anatomy was observed in samples, and the degree of damage was found to be higher in the transplants of the larger city. In the lichen transplants from locations having high traffic density, the total chlorophyll content was found to fall; on the contrary, electrical conductivity was found to be higher. The exposed-to-control ratio showed severe accumulation of Cd in all the transplants. Elements such as Cd, Pb, and Zn were found to be enriched in all the lichen samples from both Guwahati as well as Tezpur city. Besides, Cr, Cu, K, and Ni were also realized to be enhanced to a moderate extent. The correlations of indicator metal species pairs showed that anthropogenic influence was quite clear. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink