Air Pollution is having severe impact on Roadside trees of Lohegaon area. Plant samples were collected in and around Airport area. It was found that concentration of PM 10 was found to be highest in all seasons studied and had impact on trees. Plant studied were Indian Rosewood , Tamarind tree, Mango tree, Rain tree, Neem tree, Peepal tree. p H was found to be highest in Mango tree, Relative water content (RWC) was found to highest in Tamarind tree, Total Chlorophyll content in Mango tree, Ascorbic acid was found to be highest in Peepal tree. APTI was found to be highest in Peepal and lowest in Tamarind tree KEYWORDS: Air Pollutants, APTI of plants, Total Chlorophyll, Ascorbic acid, p H of leaf Relative water Content ( RWC)
Air pollution is one of major concerns in Pune City currently. Study highlights increase in Particulate matter from Vehicular sources & Urbanization in Karaj area is having harmful impact on the trees in the area. Leaf of Plant species such as Peepal( Ficusreligiosa),, Tamarind(Tamarindusindica), Rain tree( Samaneasaman), Ashoka( Saracaasoca), Manago( Mangiferaindica), Almond( Terminaliacatappa) , Banyan tree(Ficusbenghalensis) were selected and it was found that Ashoka( Saracaasoca), Mango tree( Mangiferaindica) showed Intermediate APTI whereas Peepal, Tamarind, Rain tree, Almond, Banyan tree were found to be Sensitive to pollution. KEYWORDS: Air Pollutants, APTI of plants, Total Chlorophyll, Ascorbic acid, p H of leaf, Relative water Content ( RWC)
Roadside urban trees have great potential to control air pollution. This study evaluates the impact of air pollutants (PM 10 & 2.5, SO x , NO x ) on the morphology of Polyalthia longofolia (Ashoka tree) & Ficus racemosa (Umbar tree) in Shivajinagar and Pashan area of Pune city. APTI (Air Pollution Tolerance Index) was calculated by estimating pH, R.W.C. (Relative water content), Ascorbic acid (A.A.) & Total chlorophyll (T.C.). The result reveals that the various oxides studied are within the permissible limits as suggested by NAAQS (National Ambient Air Quality Standard) and WHO (World Health Organisation). However, PM 10 & PM 2.5 were found to be above the permissible limit standards prescribed by NAAQS and WHO. Ficus racemosa was found to be intermediate to air pollution, and Polyalthia longofolia was tolerant of air pollution in Shivajinagar and Pashan areas. Thus Ficus racemosa & Polyalthia longofolia can be planted to mitigate air pollution.
Bioremediation is a process used to treat contaminated media, including water, soil and subsurface material by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants. With the growing industrialization and urbanization, organic pollutants are accumulated in the aquatic ecosystem and fresh water bodies through the industrial discharges, untreated domestic effluents, agricultural runoff which includes pesticides, herbicides and fertilizers. These are responsible for adding excess nutrient load and change the quality of water and also causes negative effects on aquatic ecosystem as well as organisms which are depend on it. Similarly heavy metals, radio nucleotides which are released into the land and water reservoirs through nuclear power plants in accidental cases and their long term exposure to humans is detrimental as they are carcinogenic. There are several conventional methods such as coagulation and filtration, chemical precipitation, carbon adsorption, ion exchange, evaporations and membrane processes to minimize these contaminants but they might be including improper handling, disposal problem of sludge and high capital cost. Use of algae to minimize the contaminants or to detoxify the polluted water bodies is a more promising, ecofriendly and cost-effective method also known as phycoremediation. In this current review we will highlight on various methods used to assess the bioremediation potential of some micro algae in treatment of industrial effluents.
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