scholarly journals AIR POLLUTION TOLERANCE INDEX OF SOME SELECTED GYMNOSPERM SPECIES ALONG THE ROAD SIDE OF KATHMANDU VALLEY, NEPAL

2017 ◽  
Vol 24 ◽  
pp. 13-19 ◽  
Author(s):  
Jaya Prakash Hamal ◽  
Mukesh Kumar Chettri
Keyword(s):  
Air Pollution ◽  
Winter Season ◽  
Kathmandu Valley ◽  
Tolerance Index ◽  
Pinus Roxburghii ◽  
Cedrus Deodara ◽  
The Road ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Polluted Sites

Response of plants towards air pollution is assessed by air pollution tolerance index (APTI). Four species of Gymnosperms (Thuja orientiales, Cedrus deodara, Pinus roxburghii and Araucaria bidwillii) were evaluated for APTI. Leaves were collected during winter season from polluted sites (Airport, Dhumbarahi, Jawalakhel, Ratnapark, and Sankhapark) and less polluted site (Narayanthan) of Kathmandu valley. Of four gymnosperm species collected from road side, all species (Cedrus deodara, Araucaria bidwillii, Thuja orientiales and Pinus roxburghii) showed high value of APTI (i.e., more than 8), indicating their resistance to air pollution.ECOPRINT 24: 13-19, 2017

scholarly journals Assessing air pollution tolerance of plant species in vegetation traffic barriers in Kathmandu Valley, Nepal

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Sunita Shrestha ◽  
Badri Baral ◽  
Narayan Babu Dhital ◽  
Hsi-Hsien Yang
Keyword(s):  
Air Pollution ◽  
Plant Species ◽  
Air Pollutants ◽  
Psidium Guajava ◽  
Species Selection ◽  
Nerium Oleander ◽  
Kathmandu Valley ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index

AbstractVegetation traffic barriers along roads can be an effective structure to improve roadside air quality and to reduce human exposure to traffic air pollutants. However, the selection of the plant species should be considered as an important design parameter for vegetation traffic barriers because different plant species demonstrate different levels of tolerance to air pollutants. This study compares the air pollution tolerance of different plant species found in the vegetation traffic barriers in the Kathmandu valley. Four biochemical parameters (relative water content, leaf extract pH, total chlorophyll and ascorbic acid) and the dust-capturing potential of plants were analyzed. Out of the nine selected species, Cinnamomum camphora showed the highest tolerance to air pollution based on the air pollution tolerance index. Similarly, Schefflera pueckleri, Psidium guajava and Ficus benjamina were found to be the sensitive species, while Ficus sp., Nerium oleander, Thuja sp., Dypsis lutescens and Albizia julibrissin were found to have a moderate level of tolerance to air pollution. N. oleander had the highest dust-capturing potential. Considering both air pollution tolerance index and dust-capturing potential, C. camphora, N. oleander and A. julibrissin were found to be the most suitable species for the roadside plantation. The findings of this study might have important implications for plant species selection for vegetation traffic barriers.

scholarly journals Toleransi Tanaman Lanskap Terhadap Pencemaran Udara di Kota Sidoarjo

2020 ◽  
Vol 12 (2) ◽  
pp. 73-78
Author(s):  
Sylvia Hasna Salsabila ◽  
Pangesti Nugrahani ◽  
Juli Santoso
Keyword(s):  
Air Pollution ◽  
Tolerance Index ◽  
Tolerance Level ◽  
The Road ◽  
Pollution Tolerance ◽  
Landscape Plants ◽  
Air Pollution Tolerance Index ◽  
Horticultural Plants ◽  
On The Road ◽  
The City

Landscape plants is one of horticultural plants, wich has a few functions, such as for esthetics plant, giving shade on the road, hedges and absorbing air pollution. Judging from its existence, landscape plants are often facing problem, such as clash with air pollution, as a result of the process of photosynthesis on the plants are disrupted. This research is conducted in two locations in the city of Sidoarjo, at the Alun-alun Sidoarjo area as the control location (L0) and Aloha area as the polluted location (L1). Method to determine tolerance level through calculation of APTI (Air Pollution Tolerance Index) with parameters of leaf pH, water content, ascorbic acid and chlorophyll.

scholarly journals ASSESSMENT OF AIR POLLUTION TOLERANCE INDEX OF PLANTS: A COMPARATIVE STUDY

2017 ◽  
Vol 9 (7) ◽  
pp. 83 ◽  
Author(s):  
Aasawari A. Tak ◽  
Umesh B. Kakde
Keyword(s):  
Air Pollution ◽  
Azadirachta Indica ◽  
Tree Species ◽  
Tectona Grandis ◽  
Acacia Nilotica ◽  
Tolerance Index ◽  
Tamarindus Indica ◽  
Cassia Fistula ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index

Objective: Air pollution is one of the major global tribulations in many developing cities around the world. Addressing this sort of pollution is more intricate than other ecological challenges. As pollution is an upcoming issue, we aimed at assessing the air pollution tolerant plants from roadside exposed to vehicular air pollution from two different locations in Thane city.Methods: In the present study, commonly available ten roadside tree species selected from polluted and control area, and their air pollution tolerance index (APTI) determined in Thane city. The biochemical parameters viz. pH, ascorbic acid, total chlorophyll, relative water content (RWC) were considered to calculate APTI by using standard method.Results: The study shows that the control site has more APTI than the polluted site. The APTI observed minimum in Tectona grandis 5.2±0.3247 and maximum in Azadirachta indica 13.5±0.4404. Reduction in APTI at polluted site shows that Alstonia scholaris (6.6%), Tamarindus indica (8.8%) and Azadirachta indica (10.3%) were the most tolerant tree species, while Tectona grandis (47.5%), Acacia nilotica (27.4%) and Cassia fistula (20.7%) were more sensitive tree species. The results showed the order of tolerance (% difference in APTI) as Alstonia scholaris (6.6%)>Tamarindus indica (8.8%)>Azadirachta indica (10.3%)>Moringa pterygosperma (11.9%)>Mangifera indica (13.9%)>Bahunia variegate (14.3%)>Annona squamosa (18.7%)>Cassia fistula (20.7%)>Acacia nilotica (27.4%)>Tectona grandis (47.5%).Conclusion: Tolerant trees species can serve as a sink, and sensitive tree species can act as an indicator for air pollution mitigation. Thus, this study provides useful insights for selecting tolerant species for future planning and Greenbelt development in urban areas.

scholarly journals ASSESSMENT OF AMBIENT AIR QUALITY AND DEVELOPMENT OF GREEN BELT AROUND INDUSTRIES IN ASSAM USING SELECTIVE TREE AND PLANT SPECIES

2020 ◽  
pp. 610-613
Author(s):  
Jiban Jyoti Das
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Plant Species ◽  
Ambient Air ◽  
Tolerance Index ◽  
Ambient Air Quality ◽  
Sensitive Species ◽  
Green Belt ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index

Industrialization is an important aspect of a growing economy. However, rapid industrialization has caused many serious impacts on the environment. One such impact is the deteriorating air quality, especially around industries. It is said that afforestation is the best and simplest way for improving the air quality. Also, trees and plants have been increasingly used as filters for dust particles around the home, traffic roads, etc. In scientific studies, it has also been found that trees and plant leaves can be used to assess the ambient air quality by an index called the Air pollution tolerance index. A literature search has been done on the scientific database like Sciencedirect and Researchgate to review the existing knowledge of Air pollution tolerance index and to find the tolerant and sensitive species based on it so that these species can be selectively planted to assess the ambient air quality and also to develop a better green belt around refineries and industries in Assam. The study has reviewed the linkage of the impact of air pollution on leaves of plants and trees through scientific evidence. Through such scientific reviews, the most tolerant species of trees and plants were chosen with the condition that it can grow under the climatic condition of Assam. The recommendation and suggestions of tolerant tree and plant species can be used for specific species plantations for developing green belts around refineries and industries in Assam. The recommendation of sensitive species can be used for monitoring ambient air quality with reference to other standard procedures. KEYWORDS: Air pollution tolerance index, Industries, Air- pollution, Green belt

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 induced vegetation stress – The Air Pollution Tolerance Index as a quick tool for city health evaluation

2020 ◽  
Vol 113 ◽  
pp. 106234 ◽  
Author(s):  
Vanda Éva Molnár ◽  
Edina Simon ◽  
Béla Tóthmérész ◽  
Sarawut Ninsawat ◽  
Szilárd Szabó
Keyword(s):  
Air Pollution ◽  
Tolerance Index ◽  
Health Evaluation ◽  
Pollution Tolerance ◽  
Vegetation Stress ◽  
Air Pollution Tolerance Index

Air pollution tolerance index of plants

1991 ◽  
Vol 32 (1) ◽  
pp. 45-55 ◽  
Author(s):  
S.K. Singh ◽  
D.N. Rao ◽  
M. Agrawal ◽  
J. Pandey ◽  
D. Naryan
Keyword(s):  
Air Pollution ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index
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