Kamesh’s scientific contributions

The present study was conducted in Bastar district of Chhattisgarh to identify the traditional and existing agroforestry practices used by farmers. The data were collected through survey of field visits and filled out of pre-prepared questionnaires in four blocks of Bastar district, namely Jagdalpur, Bastar, Tokapal and Bakawand. The survey revealed six different types of agroforestry system practices i.e., agrisilvihorticulture, agrisilviculture, silvihorticulture, agrisilvipastoral, silvihortipastoral, and agrisilvihortipastoral. Among these, 67% of farmers were practiced agrisilvihorticulture-type agroforestry systems. Farmers in Bastar were found to use 29 different tree crops, 17 horticultural crops, 20 vegetable crops, and 11 agricultural crops in their fields.

This study was estimating the physicochemical parameters of water and preparing the water quality index for drinking water in a residential area of Bilaspur city. Fifty water samples were collected from ten sites and analyzed six parameters of water quality by using the portable multi-parameter water quality meter (Hanna Instruments: HI98194). The results of water quality were statistically different for sites (p<0.001). During the study, the average water pH (8.326±0.67), water temperature (27.349±0.207 °C), dissolved oxygen (7.775±0.034 mg/l), total dissolved solids (526.46±0.781mg/l), electrical conductivity of water (391.6±0.79 mg/l), and oxygen reduction potential (-32.715±0.21 mV) were recorded. The positive correlation was observed between EC and TDS (r = 0.935) and pH and ORP (r = 0.802), while the negative correlation was observed between DO and temperature. The range of the WQI was observed to be 383.67 to 530.87, and there was a statistically difference at for sites (p<0.001).

Fly ash pollution is created close to Chhattisgarh's coal-fired thermal power plants, which annually produce 8.7 million metric tonnes of fly ash. Ch-hattisgarh's thermal power plants have a number of negative effects, including water contamination from fly ash, soil pollution, and air pollution. Waste from thermal power plants, known as fly ash, poses a number of environmental hazards when released into the atmosphere. On the other hand, because of its high porosity, large specific surface area, and other unique characteristics, fly ash can also be used as a low-cost and highly efficient adsorbent for the treatment of environmental pollutants. There are several methods used to control the spreading and disposal of fly ash. Plants have the capacity to establish fly ash in the soil and also control its spreading. These reviews focus on the impact of fly ash on vegetation and their disposal methods.

The effectiveness of trees for reducing air pollution has been widely recognized. To mitigate the threat of pollution, it is essential to increase tree planting in industrial areas. It is essential for selecting plants that can withstand air pollution while developing a green belt. The present study is on evaluation of air pollution tolerance index for fifteen dominated tree species around the industrial area Sirgitti, Bilaspur. The leaves samples were collected for analysis of several biochemical parameters such as leaf pH, ascorbic acid, total chlorophyll, and relative water content and APTI. The highest APTI value was recorded in Moringa oleifera (13.83) and lowest in Butea monosperma (7.81) followed by Neolamarckia cadamba (11.27), Peltophorum petrocarpum (11.01), Ficus benghalensis (10.89), Saraca asoca (10.85), Ficus religiosa (10.29), Melia azedarach (9.98), Acacia nilotica (9.71), Azadirachta indica (9.62), Eculaptus alba (8.91), Millettia pinnata (8.82), Tectona grandis (8.61), Ziziphus mauritiana (8.22), and Syzygium cumini (8.08) were estimated for tolerance trees in industrial area. High APTI value tree species are tolerant to air pollution and also best suited for the green belt development in industrial area.

Wastewater pollution and its treatment is an ever-increasing concern in the century because of the higher industrialization and urbanization. The expansion of industries is the leading cause of polluting water resources. A discharge from industries contains various organic and inorganic pollutants. The heavy metals which are mostly discharged from the industries include Zinc (Zn), Arsenic (As), Nickel (Ni), Cadmium (Cd), Mercury (Hg), Copper (Co), Chromium (Cr), and Lead (Pb). These metals are toxic to human health and other living organisms. Water is an essential natural resource that reserves important flora and fauna on the earth. Therefore, it is necessary to remediate contaminated water from organic and inorganic pollutants. Chemical precipitation, ion exchange, reverse osmosis, chemical oxidation, reduction ultrafiltration, electrolysis, and adsorption are some treatment processes used to remove heavy metals from wastewater effluent. Adsorption is the most promising technique used for the removal of water pollutants. This review surveys the various natural adsorbents used to remove water pollutants. Natural adsorbents are the most effective and low-cost adsorption techniques in which plant residuals (leaves, stems, roots, straw, etc.) are used to remove water pollutants from wastewater.