title: Ambient air sulphur dioxide and sulphate accumulation in deciduous and evergreen plants.
abstract: Present study is an attempt to evaluate the difference in rate of sulphur dioxide (SO2) absorption by deciduous (Ficus religiosa) and evergreen (Carica papaya) plants, under elevated concentration of the gas in ambient air. Two-way ANOVA for SO2 in air and sulphate (SO4) accumulation in both the selected plants showed significant difference (p<0.01) at different study sites; different months as well as interaction effect of both site and months. The linear correlation coefficient among ambient air SO2 and SO4 in leaves was always significant (p<0.001) in case of deciduous plant; however, the same in evergreen plants showed heterogeneous result. Air pollution tolerance index (APTI) of F. religiosa (deciduous) and C. papaya (evergreen) was found to be 19.73 and 81.10 respectively, proving that the former has low tolerance capacity and is sensitive, while the latter is resistant to the elevated ambient air SO2.
authors.affiliation: Pollution and Environmental Assay Research Laboratory (PEARL), Department of Botany, DDU Gorakhpur University, Gorakhpur - 273 009, India. anil.k.dwiwedi@gmail.com
authors.forename: Anil K
authors.initials: AK
authors.lastname: Dwivedi
authors.lastname: Shashi
mesh_terms: D000393:Air Pollutants / Q000737:chemistry / Q000378:metabolism*; D029441:Carica / Q000737:chemistry / Q000378:metabolism*; D004780:Environment, Controlled; D030681:Ficus / Q000737:chemistry / Q000378:metabolism*; D012621:Seasons; D013045:Species Specificity; D013431:Sulfates / Q000737:chemistry / Q000378:metabolism*; D013458:Sulfur Dioxide / Q000737:chemistry / Q000378:metabolism*; D013997:Time Factors
chemical_list: D000393:Air Pollutants; D013431:Sulfates; D013458:Sulfur Dioxide