• Angela Perris
• Anindita Bhattacharya
• Monika Naskar, Tulika Biswas
• Noyonika Mukherjee, Subhankhi Pal
• Arup Kumar Mitra

Suspended particulate matter (SPM) refers to the very fine solid or liquid aerosol particles suspended in the atmospheric air. Sometimes, in certain areas, due to industrial or combustion activities, there can be a fraction of particulate heavy metal found in the air of that particular place, which can have considerable negative impact on the air quality of that place, and in turn, can have adverse health effects. However, the natural microbial population found on the leaf surfaces can sometimes possess abilities to tolerate the metal content of the deposited SPM and also uptake those metals, which ultimately turn out to be beneficial for both the plant as well as the air quality of that place. In the present study, 10 different places in and around Kolkata were chosen and a common garden plant, Hibiscus rosasinensis (China rose), was selected from each place and the SPM deposits on the leaf surfaces were collected. Firstly, the varying SPM deposits on the leaf surfaces were analyzed by weighing followed up by the total dissolved solids and electrical conductance tests. The next part of the study aimed at studying the effects of deposited SPM on the physiology of those respective plants, for which tests like chlorophyll assay, along with estimation of transpiration index and stomatal index were carried out. Also, the categorization of the microbial population into various microbial communities was done experimentally to obtain a clear idea regarding the existence of the types and diversity of microbes of those areas. Finally, more significant aspects like metal (Pb+2) tolerance and metal (Pb+2) uptake (metal of maximum existence) by the leaf microbial population (culture of maximum existence) of a particular location (Howrah), identified to be a member of the genus Micrococcus was studied and quantified, thereupon paving a new vista in the arena of micro-remediation and removal of air pollution issues to a greater elaboration.

Suspended particulate matter, heavy metals, Atomic absorption spectroscopy, micro-remediation, Micrococcus sp, Kolkata

"An Analytical Study Of The Air Quality, Microbial Index And Metal-Microbial Interactions Using Leaf As An Assessment Tool", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.241-249, March-2019, Available :http://www.jetir.org/papers/JETIR1903739.pdf

"An Analytical Study Of The Air Quality, Microbial Index And Metal-Microbial Interactions Using Leaf As An Assessment Tool", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp241-249, March-2019, Available at : http://www.jetir.org/papers/JETIR1903739.pdf