ENVIRONMENTAL ECOSYSTEM AND INDUSTRIAL POLLUTION AT THOOTHUKUDI DISTRICT, TAMILNADU

The focus of this paper is to investigate the environmental ecosystem in Thoothukudi district. The study area is the small and large scale industrial city of Tamilndu. Chemical industry and power plant and marine fishing affect the ecosystem of the study area. Airborne emissions emitted from various industries are the cause of major concern. These emissions are of two forms such as, suspended particulate matter (SPM) and gaseous emission of sulphur dioxide, nitrogen dioxide, and carbon monoxide. The emission of industrial and petrochemical ozone layer occurs in the part of stratosphere at 10- 50 km above the surface. The chlorofluorocarbons (CFC) process reducing the ocean layer thickness then allows the UV from the sun to affect human beings and ecosystem on the surface. The ozone absorbs the UV radiation without itself being consumed and the UV light converts into heat due to the industrial pollution. In that case, there are increases of temperature with altitude because of by chemical factories. So that, giving inversion layer that traps molecules in the troposphere. The industrial pollution caused by chemicals, power and atomic waste used to affect the ecosystem in the industrial city of Thoothukudi

Evaluation of Iron Ore Deposits in Elayiram Pannai, Sattur Taluk, Virudhunagar District and Tamilnadu using 2D Electrical Resistivity Imaging

2D Electrical Resistivity Imaging (ERI) investigation is suitable method to determine the geotechnical problems and it is used to identify the iron ore deposits. 2D Electrical Resistivity Imaging with Wenner array was conducted within the iron ore deposits area in Elayiram Pannai, Virudhunagar District, Tamilnadu.The geology of the were developed into the picture image of pseudosection by using RES2DINVsoftware. The banded iron ore deposits are highly conductive and can be easily distinguish from pseudosection image contrast of the rocks in the studied area

RESISTIVITY STEPS AS A PRECURSOR AND IMPENDING EARTHQUAKES OF AFTERSHOCKS OF GREAT EARTHQUAKE OF 26 TH DECEMBER 2004 RECORDED AT IDUKKI OBSERVATARY, KERALA, INDIA

ABSTARCT The study of resistivity relaxation before the impending earthquake events occurred during January-February 2005 in the Andaman-Sumatra subduction zone have proven the existence of the long range effects of strain related precursors, fortuitously recorded by the Variometer designed to reflect the premonitory rupture in Kottayam, Kerala, India at epicentral distances greater than 2000km. The swarms of the aftershock of Great earthquake of 2004 supplied sources of seismic waves that have been subsequently scattered, polarized and lead to the process of birefringence through the anisotropic rocks. The average values of earthquake magnitudes (M5.3), epicentral distances (1941km), radius of preparation zones (281km) and focal depths (23km) are calculated from the regression equations evolved from the bivariate plots. The abnormal increase of crustal strain even for a lower earthquake of M5.3 which has definitive radius of the preparation zone of 240km to an ultimate radius of more than 5400km from epicenters to observatory is discussed. Keyword: earthquake, precursor, resistivity, magnitude, Idukki. INTRODUCTION The rock deformation allows the accumulation of stress energy, before the large earthquake and continued until stress energy was released by faulting at the time of earthquake The stress energy accumulated is released within the short span of time before the main shocks could be useful as precursor signals of an impending earthquak

Historical exclusion, conflict, health systems and Ill-health among tribal communities in India : a synthesis of three studies

The report aims to consolidate key findings across three studies among tribal populations in India; to understand and explain the diverse nature of health inequities along with processes and historical contexts which create, configure and sustain these inequities; it also questions the existing understanding of health equity. The three research partners explored different facets of health inequities among tribal communities from diverse historical and geographic contexts. A detailed sub-section examines the role of the health system in health inequities experienced by the tribal communities

ENVIRONMENTAL ECOSYSTEM AND INDUSTRIAL POLLUTION AT THOOTHUKUDI DISTRICT, TAMILNADU

The focus of this paper is to investigate the environmental ecosystem in Thoothukudi district. The study area is the small and large scale industrial city of Tamilndu. Chemical industry and power plant and marine fishing affect the ecosystem of the study area. Airborne emissions emitted from various industries are the cause of major concern. These emissions are of two forms such as, suspended particulate matter (SPM) and gaseous emission of sulphur dioxide, nitrogen dioxide, and carbon monoxide. The emission of industrial and petrochemical ozone layer occurs in the part of stratosphere at 10- 50 km above the surface. The chlorofluorocarbons (CFC) process reducing the ocean layer thickness then allows the UV from the sun to affect human beings and ecosystem on the surface. The ozone absorbs the UV radiation without itself being consumed and the UV light converts into heat due to the industrial pollution. In that case, there are increases of temperature with altitude because of by chemical factories. So that, giving inversion layer that traps molecules in the troposphere. The industrial pollution caused by chemicals, power and atomic waste used to affect the ecosystem in the industrial city of Thoothukudi

Evaluation of Iron Ore Deposits in Elayiram Pannai, Sattur Taluk, Virudhunagar District and Tamilnadu using 2D Electrical Resistivity Imaging

2D Electrical Resistivity Imaging (ERI) investigation is suitable method to determine the geotechnical problems and it is used to identify the iron ore deposits. 2D Electrical Resistivity Imaging with Wenner array was conducted within the iron ore deposits area in Elayiram Pannai, Virudhunagar District, Tamilnadu.The geology of the were developed into the picture image of pseudosection by using RES2DINVsoftware. The banded iron ore deposits are highly conductive and can be easily distinguish from pseudosection image contrast of the rocks in the studied area

Detection of submarine groundwater discharge to coastal zone study using 2d electrical resistivity imaging study at Manapad, Tuticorin, India

224-228Submarine Groundwater Discharge (SGD), is identified at Manapad headland using 2D Electrical Resistivity Imaging study. The study area is covered with the calcareous marine sediments and shells materials formed by the tectonic upliftment. Measured apparent resistivity values are inverted into inversion resistivity pseudosection by using RES2DINV 3.56 software and iterated to calculate resistivity model. Resistivity zones with a range of values from 31 to 174 Ohmm act as permeable pathway for freshwater discharge to the down stream side towards sea

WENNER ARRAY RESISTIVITY AND SP LOGGING FOR GROUND WATER EXPLORATION IN SAWERPURAM TERI DEPOSITS, THOOTHUKUDI DISTRICT, TAMIL NADU, INDIA

ABSTRACT The objective of this study is to identify a good site for groundwater exploration in Teri deposits. In this rock types, groundwater occurs in secondary porosity developed due to weathering, faulting, fracturing in the subsurface formation. In such situations Wenner array with resistivity and SP logging is suitable method for groundwater exploration in the Teri deposits. Initially based topography, geomophological and hydrogeologial features, an area about 2km was segregate as a promising zone for groundwater exploration in the teri deposits of Sawerpuram, Thoothukudi District, Tamil Nadu, India. The Vertical Electrical Sounding was carried out using Wenner electrode configuration with help of equipment CRM 500. The interpretations were carried using Apparent Resistivity and SP logging techniques. The resistivity ranging from 100-120 Ohm.m indicates the freshwater zone in the study area