scholarly journals Roadside Plants as Bio-indicators of Urban Air Pollution

2020 ◽  
pp. 321-326
Author(s):  
J. R. Mulay
Keyword(s):  
Air Pollution ◽  
Leaf Extract ◽  
Traffic Density ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Bougainvillea Spectabilis ◽  
Roadside Plants

This paper describes air pollution tolerance among roadside plants exposed to varying degrees of vehicular pollutants. Evaluation of air pollution tolerance index (APTI) of 10 selected wild plant species was carried out to assess their response to ambient levels of air pollutants along the busy roadways of Ahemadnagar Four parameters namely total chlorophyll, ascorbic acid, pH of leaf extract and relative water content were determined and computed together to signify air pollution tolerance index (APTI) of plants. The observed significant reduction in total chlorophyll, ascorbic acid and relative water content showed inverse relationship with traffic density. Similarly, pH of leaf extract followed an exponential decrease with increase in traffic density and drifted towards acidic range. Comparison of APTI values from control to polluted sites revealed maximum reduction in Bougainvillea spectabilis while least change was noted in Peltophorum pterocarpum. Among the plants studied maximum net per cent reduction of APTI over control was seen in Bougainvillea spectabilis and Ageratum conyzoides and are considered to be sensitive species. While Peltophorum pterocarpum and Portulaca oleraceae are tolerant species since they have shown least per cent reduction in APTI.

Air Pollution Tolerence Index, Anticipated Performance Index of plants studied near selected sites at Salem, Dharmapuri District

2021 ◽  
pp. 5931-5936
Author(s):  
Krishnaveni M. ◽  
M . Saran Kumar ◽  
Anithasri G. ◽  
Nanthini S. ◽  
Gowsalya K. ◽  
...  
Keyword(s):  
Air Pollution ◽  
Performance Index ◽  
Living Environment ◽  
Tolerance Index ◽  
Sample Collection ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Anticipated Performance Index ◽  
Polyalthia Longifolia

Air pollution due to huge number of vehicles emitting toxic gas poisons both living environment affecting fauna and flora. Road side plants are affected mostly by pollution as they are primary acceptors and gets reflected in terms of tolerance and sensitivity to pollution. Hence, the present work was designed to study the air pollution tolerance (APTI) using biochemical parameters and anticipated performance index (API) of the plants collected near seven different locations. Among the plants assessed, all plants selected does not show much difference in ascorbic acid, total chlorophyll, pH, relative water content, but that slight difference exhibited variations in air pollution tolerance index. Pongamia pinnata (33.16), Ficus religiosa (34.05) Near Asian rubber Industry, Kandampatty Byepass, Salem was found to be a tolerant species, Polyalthia longifolia (8.21) as very sensitive in plants studied Near KMB Granites Pvt. Ltd. Kottagoundampatty, Salem, and the rest was found to be moderately tolerent. Since, the studied plants show lesser surface area, the amount of dust collected was also less, which might be due to the climatic condition prevailed at that time of sample collection. Likewise, the API was found to be excellent in Yercaud lake view and very good in study area Duroflex company, Karimangalam, Dharmapuri, poor in study area Thanithotty Quarry, Salem as well as in KMB granites Pvt.Ltd. and good for the remaining three locations. So, the sensitive plants has to be protected that are located in these sites to reduce the pollution load.

Air pollution tolerance index of selected plants in industrial and urban areas of Vellore district

2016 ◽  
Vol 35 (1) ◽  
Author(s):  
M. Akilan ◽  
S. Nandhakumar
Keyword(s):  
Air Pollution ◽  
Plant Species ◽  
Urban Areas ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Leaf Tissues ◽  
The Impact ◽  
College Farm

The impact of air pollutants on the biochemical characters of the selected plant species from industrial and urban areas was studied by calculating ascorbic acid, total chlorophyll, leaf extract pH and relative water content from leaf tissues. The air pollution tolerance index (APTI) values of the selected plants of different study areas revealed that the APTI values of the plants at the College Farm recorded low compared to Arcot and Ranipet transporation and industrial areas. Among the selected plant species, higher APTI values were recorded from the industrial and urban areas. when compared to areas free from industries and transport. The four selected plant species <italic>viz</italic>. <italic>Neerium oleander, Tamarindus indicus, Azardirecta indica</italic> and <italic>Pungamia pinnata, Neerium oleander</italic> recorded higher APTI values from the industrial and transportation that revealed more tolerance than the other selected plants.The statistical results revealed that Arcot was more polluted compared to Ranipet, and the college farm recorded least polluted due to less exposure to industries, transport and urbanization.

scholarly journals PRELIMINARY STUDIES ON AIR POLLUTION TOLERANCE INDEX (APTI) OF SELECTED PLANT SPECIES IN BIKANER CITY

2021 ◽  
Vol 5 (2) ◽  
pp. 117-120
Author(s):  
Leela Kaur ◽  
Anuradha .
Keyword(s):  
Air Pollution ◽  
Plant Species ◽  
Ascorbic Acid Content ◽  
Datura Stramonium ◽  
Calotropis Procera ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Leaf Relative Water Content

Air Pollution Tolerance Index is used to find out the level of air pollution in any area with the help of plants. Plants are categorized as sensitive, intermediate and tolerant based on their APTI values. The present study examines the Air Pollution Tolerance Index of selected plant species in Bikaner city. The APTI of various plants have been computed with the values obtained by analysis of biochemical parameters such as pH of leaf extract, ascorbic acid content (AAC), total leaf chlorophyll content (TLC) and leaf relative water content (RWC). It was found that plant species Khejri (Prosopis cineraria), Neem (Azadiracta indica), Babul (Acacia nilotica), Ber (Ziziphus nummularia), Aak (Calotropis procera) and Peepal (Ficus religiosa) showed APTI values in the range of 30 to 100 which are tolerant to air pollution. Datura stramonium was the only species which falls under the intermediate category due to its APTI value of 21.5. It is recommended that these plants can be grown on national highways to combat air pollution in arid areas. Such plants can be used in the development of green belt.

scholarly journals Study on Spatial and Seasonal Variation in APTI of Tree Species along Roads of Shivalik Foothills in Himachal Pradesh

2021 ◽  
Vol 12 (3) ◽  
pp. 247-254
Author(s):  
Anuja Bhardwaj ◽  
◽  
R. K. Aggarwal ◽  
S. K. Bhardwaj ◽  
◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Water Content ◽  
Relative Water Content ◽  
Leaf Extract ◽  
Monsoon Season ◽  
Mangifera Indica ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Relative Water

The present study was conducted during the year 2018-2019 to determine the impact of road on Air Pollution Tolerance Index (APTI) of plants growing along the road. A comparative study was done between three roads viz., National highway, State highway and Link Road. Among three roads, link road can be considered as control because vehicular emissions were minimal or non-existent. Three plants (Dalbergia sisso, Mangifera indica and Ficus palmata) were selected as per their uniform presence along all three roads. Four biochemical parameters viz., ascorbic acid, total chlorophyll, leaf extract pH and relative water content were used to calculate the air pollution tolerance index. Season wise maximum ascorbic acid, leaf extract pH and relative water content was observed during post monsoon season whereas total chlorophyll content was observed during pre monsoon season. The APTI of the selected plant species ranged from 8.23 to 10.76 during pre-monsoon and 9.03 to 11.09 during post-monsoon. Anticipated Performance Index (API) was in order of Mangifera indica with highest API grade (6) and it was excellent among plants followed by Dalbergia sisso (5) in very good and Ficus palmata (3) in moderate. Student t-test analysis of seasonal variation of biochemical parameters in leaf of selected tree species was carried out and it was observed that there was significant seasonal effect on mean values of ascorbic acid content and APTI whereas there was no impact of seasons on total chlorophyll content, leaf extract pH and relative water content.

scholarly journals Physiochemical Alterations and Air Pollution Tolerance Index in Ficus religiosa L. Planted Along Polluted Roadsides of Lahore City

2021 ◽  
Vol 72 (3) ◽  
pp. 112-121
Author(s):  
Irum Bashir ◽  
Muhammad Umer Farooq Awan ◽  
Sohaib Muhammad ◽  
Andleeb Anwar Sardar ◽  
Muhammad Luqman ◽  
...  
Keyword(s):  
Air Pollution ◽  
Leaf Area ◽  
Leaf Extract ◽  
Tolerance Index ◽  
Rapid Urbanization ◽  
Ficus Religiosa ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Lahore City ◽  
Dust Accumulation

Air pollution is among the nastiest form of pollutions causing vexation over the globe. The recent situation of eco-toxicity showed that whole planet is facing this misery explicitly or implicitly. The essence of this enigma is rapid urbanization and industrialization. Global developmental activities, deforestation, uncontrolled industrial emission and increase in vehicular load made this environment unfit for healthy life. This research work explored the effect of air pollution on Physiochemical attributes of Ficus religiosa L. planted along the polluted roadsides of Lahore city. Leaf area, ascorbic acid contents (AAC), total chlorophyll content (TCh), pH of leaf extract, relative water contents (RWC), and dust accumulation on leaves surface were measured using standard methods. Air Pollution Tolerance Index was computed, and the results were compared with the control plants from Changa Manga forest, 70 Km away from Lahore city in cleaner locality. Several Physiochemical alterations in F. religiosa growing in polluted arias were observed, including average leaf area (1367�14.25mm2), AAC (0.68� 0.021 mg/g), TCh (8.50� 0.017) pH of leaf extract (7.17�0.018), RWC (92.5�0.076 %), and dust accumulation on leaves surface (0.0716�0.00063 mg/cm2) compare to control. The recorded average APTI value (10.32�0.023) was higher in the plants grown along the polluted roads compared to controls (9.39�0.012). It is concluded from the results that air pollution tolerance level of F. religiosa was higher along the polluted roads of Lahore. It depicts that they are considerably affected the prevailing air pollution.

scholarly journals Air Pollution Tolerance Index of Some Tree Species of Pashupati and Budhanilkantha Area, Kathmandu

2020 ◽  
Vol 1 (1) ◽  
pp. 20-28
Author(s):  
Sabita Ter ◽  
Mukesh K. Chettri ◽  
Kumudini Shakya
Keyword(s):  
Air Pollution ◽  
Tree Species ◽  
Heavy Traffic ◽  
Control Site ◽  
Polluted Site ◽  
Traffic Density ◽  
Tolerance Index ◽  
Grevillea Robusta ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index

The present study aims to assess the air pollution tolerant trees from the roadside of Pashupati area of Kathmandu exposed to vehicular air pollution. This area with heavy traffic density was considered as the polluted site and Budhanilkantha, lying at the outskirt of Kathmandu with very less traffic density was considered as the less-polluted site and was selected as the control site of the study. Commonly available 21 roadside same tree species from both polluted and control sites were chosen. Air pollution tolerance index (APTI) values of the trees were calculated considering the biochemical parameters - relative water content, total leaf chlorophyll, ascorbic acid and leaf extract pH by using standard method. Significantly higher APTI values (P ≤ 0.05) were obtained in Cinnamomum camphora, Ficus elastica, F. religiosa, F. benghalensis and Grevillea robusta indicating that they are tolerant tree species. Phyllanthus emblica and Schima wallichii were found to be sensitive tree species.

scholarly journals APTI (AIR POLLUTION TOLERANCE INDEX) OF TREES IN LOHAGAON AREA IN PUNE CITY IN DIFFERENT SEASONS

2020 ◽  
pp. 44-49
Author(s):  
Erum F H Kazi ◽  
Dr. Satish Kulkarni
Keyword(s):  
Air Pollution ◽  
Ascorbic Acid ◽  
Water Content ◽  
Relative Water Content ◽  
Tolerance Index ◽  
Total Chlorophyll ◽  
Pollution Tolerance ◽  
Mango Tree ◽  
Relative Water ◽  
Pm 10

Air Pollution is having severe impact on Roadside trees of Lohegaon area. Plant samples were collected in and around Airport area. It was found that concentration of PM 10 was found to be highest in all seasons studied and had impact on trees. Plant studied were Indian Rosewood , Tamarind tree, Mango tree, Rain tree, Neem tree, Peepal tree. p H was found to be highest in Mango tree, Relative water content (RWC) was found to highest in Tamarind tree, Total Chlorophyll content in Mango tree, Ascorbic acid was found to be highest in Peepal tree. APTI was found to be highest in Peepal and lowest in Tamarind tree KEYWORDS: Air Pollutants, APTI of plants, Total Chlorophyll, Ascorbic acid, p H of leaf Relative water Content ( RWC)

AIR POLLUTION TOLERANCE INDEX OF VARIOUS PLANT SPECIES GROWING IN INDUSTRIAL AREA OF ORAI DISTRICT JALAUN (U.P.) INDIA

2018 ◽  
Vol 24 (1) ◽  
Author(s):  
NEEL RATAN ◽  
MILAN YADAV ◽  
U.N. SINGH
Keyword(s):  
Air Pollution ◽  
Plant Species ◽  
Industrial Area ◽  
Tolerance Index ◽  
Ficus Religiosa ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Zizyphus Jujuba ◽  
Water Contents

Air pollution tolerance index (APTI) was calculated for various plant species growing in industrial area of Orai. The leaf samples collected from 24 tree species in the industrial area were used to determine their Air Pollution Tolerance Index (APTI) by calculating the ascorbic acid, chlorophyll, pH and relative water contents. The APTI values of less than 16 are reported in 19 species and they can be used as indicators of air pollution. The species Ficus religiosa (24.92), Zizyphus jujuba (21.84), Phyllanthus emblica (17.40), Cassia fistula (17.67) and Tamarindus indica (16.96) showed their moderate response by changing their biochemical contents and were identified as moderately tolerant to air pollution.

Comparative study of roadside avenue trees as bio-indicators of air pollution in and around Mumbai, India: A case study

2021 ◽  
Vol 2 (2) ◽  
pp. 257-263
Author(s):  
Kirthika S ◽  
Vishnuprasad V
Keyword(s):  
Air Pollution ◽  
Urban Areas ◽  
Abiotic Factors ◽  
Ascorbic Acid Content ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Relative Water ◽  
Polyalthia Longifolia ◽  
And Control

With rapid increase in urbanization followed by industrialization compounded due to ever-exploding population in the past few decades there is a steep rise in contamination of one of the most vital abiotic factors of the environment i.e., the air. In these circumstances, the clean and green measures to monitor and control air pollution have become inevitable. Air Pollution Tolerance Index (APTI) is one such index for indicating the extent of the plants to withstand air pollution. This includes analysis of physiological and biochemical parameters like total chlorophyll content, ascorbic acid content, pH of the leaf extract and relative water content of the leaves. In this study, the plants selected are mature tree species like Polyalthia longifolia, Putranjiva roxburghii, Alstonia scholaris, Delonix regia and Peltophorum pterocarpum from Mumbai and its surrounding regions. According to the Air Pollution Tolerance Index (APTI) values, plants can be classified as tolerant, intermediate, sensitive and highly sensitive. The tolerance of the plants studied in the decreasing order is as follows P. roxburghii > P. pterocarpum > D. regia > P. longifolia > A. scholaris. Species selected on the basis of their APTI values can then be used as bio-indicators of air pollution and in its mitigation for green belt development in urban areas.

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