2018 Vol.24 No.1 PP 45-49

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

NEEL RATAN , MILAN YADAV ¹ AND U.N. SINGH^*

Department of Botany,
D.V. (P.G.) College,
ORAI-285001 (U.P.) INDIA
¹Department of Botany,
Mahatma Gandhi Chitrakoot
Gramodaya Vishwavidyalaya,
SATNA-485780 (M.P.) INDIA
*Corresponding Author Email : drunsingh@rediffmail.com

ABSTRACT

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.

Key words : Air pollution, Orai, Plant species, Tolerance index