Most tolerant roadside tree species for urban settings in humid tropics based on Air Pollution Tolerance Index

Urban Climate ◽  
2021 ◽  
Vol 37 ◽  
pp. 100848
Author(s):  
Weerasooriya Arachchillage Rangika Thilaksri Wijayakoon Bandara ◽  
Chamodi Tharuni Mahanama Dissanayake
Keyword(s):  
Air Pollution ◽  
Tree Species ◽  
Humid Tropics ◽  
Tolerance Index ◽  
Urban Settings ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index

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 Evaluation of the Importance of Some East Asian Tree Species for Refinement of Air Quality by Estimating Air Pollution Tolerance Index, Anticipated Performance Index, and Air Pollutant Uptake

2020 ◽  
Vol 12 (7) ◽  
pp. 3067 ◽  
Author(s):  
Myeong Ja Kwak ◽  
Jong Kyu Lee ◽  
Sanghee Park ◽  
Yea Ji Lim ◽  
Handong Kim ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Tree Species ◽  
Performance Index ◽  
Urban Trees ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Air Pollution Tolerance Index ◽  
Anticipated Performance Index ◽  
Assimilation Capacity

Potentials of tree species as biofilters depend on appropriate selection based on their tolerance to air pollution, which is usually evaluated by the air pollution tolerance index (APTI) and anticipated performance index (API). Thus, these index values need as a means of scientific understanding to assess the role of urban trees for better greenspace planning/management to mitigate impacts of gaseous air pollution such as ozone (O3) and sulfur dioxide (SO2). O3 exposure to Chionanthus retusus, Pinus densiflora, and Ginkgo biloba showed higher stomatal O3 flux than the others, finally resulting in both favoring stomatal movement and maintaining carbon fixation. In contrast, despite the whole tree enhanced SO2 uptake under excess SO2 exposure, the carbon assimilation capacity was only found in Taxus cuspidata and Zelkova serrata as a consequence of no stomatal sluggishness. On the basis of API, P. densiflora and Prunus × yedoensis were good performers for developing greenspace, while Z. serrata and G. biloba were moderate performers; however, C. retusus and T. cuspidata were estimated to be poor and very poor performers, respectively, for reducing the air quality injury caused by air pollutants. The present study suggests that an integration of both APTI and API based on stomatal absorption flux is needed for selecting sound tree-species in greenspace planning/construction to control gaseous air pollutions.

scholarly journals Air Pollution Tolerance Index (APTI) Assessment in Tree Species of Coimbatore Urban City, Tamil Nadu, India

2018 ◽  
pp. 27-38 ◽  
Author(s):  
A. Balasubramanian ◽  
C. N. Hari Prasath ◽  
K. Gobalakrishnan ◽  
S. Radhakrishnan
Keyword(s):  
Air Pollution ◽  
Tree Species ◽  
Tamil Nadu ◽  
Heavy Traffic ◽  
Tolerance Index ◽  
Control Zone ◽  
Pollution Tolerance ◽  
Thespesia Populnea ◽  
Urban City ◽  
Air Pollution Tolerance Index

Aims: Forest restoration in urbanized and polluted cities is paving the way for mitigation of climate change by reducing the air pollutants level and carbon content level in atmosphere. So, the study was conducted at Coimbatore urban city, Tamil Nadu by using twenty five tree species to know their air pollution tolerance index (APTI) level. Study Design: The sample procedure used for assessing the APTI was stratified random sampling. Place and Duration of Study: The leaf sample was collected from different zones of Coimbatore urban city and the sample analysis was carried out in Department of Silviculture, Forest College and Research Institute, Mettupalayam, Tamil Nadu between August 2015-April 2017. Methodology: Five zones namely residential, industrial, commercial, heavy traffic and control zone were identified from Coimbatore city for estimating the air pollution tolerance index (APTI). In order to assess the air pollution tolerance index of tree species, the biochemical parameters like ascorbic acid content, total chlorophyll content, leaf extract pH and relative water content (RWC) were estimated. Results: Among the 25 tree species tested, Thespesia populnea recorded highest APTI of 16.07, 15.76, 14.63 and 14.37 in heavy traffic zone, industrial zone, control zone and residential zone respectively. In commercial zone, Pongamia pinnata accounted highest APTI value of 13.96. On contrary, the lowest level of APTI was registered by Michelia champaca in industrial zone (10.21), Peltophorum pterocarpum in heavy traffic zone (10.93), Spathodea campanulata in residential zone (11.11) and Albizia saman in commercial zone (11.46). Conclusion: On an overall, Thespesia populnea and Pongamia pinnata were performed well with highest APTI and they can be used for controlling the air pollution level in urban cities.

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 Air pollution tolerance index: An approach towards the effective green belt around Kathmandu metropolitan city, Nepal

2016 ◽  
Vol 4 ◽  
pp. 23-29
Author(s):  
Kiran Kanwar ◽  
Man K. Dhamala ◽  
Rejina Maskey-Byanju
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Tree Species ◽  
Punica Granatum ◽  
Pyrus Pyrifolia ◽  
Tolerance Index ◽  
Pollution Tolerance ◽  
Tolerant Species ◽  
Air Pollution Tolerance Index ◽  
Green Belts

Road vegetation is an effective way to mitigate road generated particulates. Green belts with high Air Pollution Tolerance Index (APTI) value in the urban centers play an important role in the amelioration of the air quality. The APTI of the trees with higher abundance were examined for bio-chemical parameters such as pH, ascorbic acid, total chlorophyll and relative water content. The APTI value of tree species varied from 5.56 (Punica granatum) to 79.99 (Populous deltoids). Higher the APTI value, higher is the tolerance towards air pollution. Among the tree species, Jacaranda mimosifolia, Pinus roxburghi, Ficus benjamin, Celtis australis, Alnus nepalensis, Callistemon lanceolatus, Schima wallichi, Pyrus pyrifolia and Punica granatum were found sensitive, whereas Prunus persia, Populus deltoides, Thuja sp. and Grevillea robusta were found to be the most tolerant species. The green belts constituting higher number of tolerant to moderately tolerant species of trees results in better air pollution sink and air quality refinement. In order to find plants with good APTI, further extensive studies should be carried out and valley plantation program should give priority of those plants having higher APTI value.

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