Exposure to fine particles is measured using metrics such as mass concentration (MC), number concentration (NC) and surface area concentration (SAC). This study aims to find correlation between the three metrics in outdoor environments of a city – city periphery, city centre and on-road. Simultaneous real-time mass, number and surface area concentration measurements were conducted in these environments. Arithmetic means, peak concentration values, and regression coefficients were determined to find relation between the three metrics.

The present work is mainly focused on the Geotechnical properties of the areas in Gandhinagar district. The recent growth which is associated with urbanization in Gandhinagar -Ahmedabad Township calls for appropriate geotechnical investigations of soils of the area. Representative soil samples were collected from the Sabarmati River bed near Gandhinagar area and were investigated as per Indian standard for their index properties with a view to classifying for their use in infrastructural development.

Moringa oleifera is a small or medium sized tree found in almost every part of India. It is used as a food material, cosmetic, medicinal plant and almost every part of this plant can be used. It was an important medicinal plant in traditional method of treatment. It has several medicinal properties like Anti Oxidant, Anti Microbial, Anti Cancer, Anti Diabetic, Hepatoprotective, Anti Inflammatory, Anti Pyretic, Analgesic activity, Hypocholesterolemic effect, Cardio protective property, Anti Asthmatic, Water Purification properties.

Every day, rivers streams and their tributaries passing through cities are receiving large amount of contaminants released from different point and nonpoint sources and have become important sink for unused waste load. Water is indispensable to life on earth. It is a precious gift of nature which is essential for the survival of plants, animals and human beings. Present investigations were carried out on the limnological aspects of Bagad river of U.P. Many of the parameters were found below the permissible limits for drinking water as suggested by WHO.

The present study was conducted in order to monitor the presence of in extensive and modified extensive shrimp culture systems. In extensive system, count ranged from 180 to 380 cfu ml-1 and 187 to 668 ml in modified extensive system. In the present study sediment registered highest load in both systems (1725-2708 cfu g and 2019 to 5699 cfu g ). In extensive system, percentage distribution of in water was 6.5, 7.2 and 16.6%, respectively, for pre monsoon, monsoon and post monsoon. In, modified extensive system, in water, percentage distribution of V.