A critical study on seasonal variations in some metal content from Vadaj Dam of Maharashtra, India

Mane P. C., Kadam D. D., Chaudhari R. D. , Kamble G. G., Sayyed S. A. R., Sarogade S. D., Abhang K. D., Varpe D. M., Suryawanshi V. R., and Dhobale S. N.,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 421-427.,[DOI: 10.24214/jecet.A.6.4.42127.]

Abstract

Aquatic ecosystem can be well protected and preserved by continuously monitoring the water quality. Biotic components of any freshwater resource solely depend on physico-chemical conditions. The present study deals with the assessment of trace elements and metals from Vadaj dam, one of the important freshwater reservoir in Junnar Tehsil, Pune District. The concentration of trace elements and metals was evaluated from three sampling sites namely S1, S2 and S3. The study was carried out for one year that is September 2015 - August 2016. The highest amount of Iron was recorded as 1.02 mg/lit and lowest amount as 0.42 mg/lit; the highest amount of Manganese was found to be 0.72 mg/lit and lowest amount as 0.34 mg/lit, while in case of Selenium highest amount was recorded as 0.105 mg/lit and lowest amount as 0.047 mg/lit. The concentration of other metals viz., Zinc, Nickel and Chromium was found to be well below their permissible limits.

Geomatics Technique on Climate Change and Its Impact on Groundwater Table Fluctuation in Mysuru District, Karnataka State, India

Manjunatha M.C and Basavarajappa H.T,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 404-420.,[DOI: https:10.24214/jecet.A.6.4.40420.]

Abstract

Average global temperatures are higher than they have ever been during the past millennium and the levels of CO2 in the atmosphere have crossed all previous records. The earth’s climate is most affected by difference in temperatures on land, sea, water and topography. Climate is the average weather conditions with a minimum period of 30 years including temperature, rainfall, and wind. The present study aims to generate the primary data to map the rainfall trends and its impact on groundwater level fluctuation through geomatics techniques. Efforts have been made to evaluate a total of 40 representative rain gauge station samples and analyzed the seasonal rainfall variation over a period of 32 years (1983- 2014). 50 representative groundwater well samples are collected to study the season-wise groundwater fluctuation of about 14 years (2001-2014). Rain gauge stations are plotted on a base map with their respective amount of rainfall, and then the contours of equal rainfall (isohyetes) are drawn using GIS software. The average rainfall between the successive isohyets taken as the average of two isohyetal values is weighed with the area between the isohyets. Climate change and certain human activities threatened directly the groundwater resources globally. The final results highlight the capability of geomatics technique in analyses of impacts of climate over groundwater level fluctuation in typical Precambrian rocks of Mysuru District, Karnataka, which is a suitable model in similar geological conditions

Investigation of Heavy Metals in Various Genre of Chicken Tissue in Dhaka City, Bangladesh

Hossain Md. Sakhawat, Rahman Md. Mizanur, Ali Md. Farhad, Nasif Tahsin Eahteshum and Hasan Md. Kamrul,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 394-403,[DOI: 10.24214/jecet.A.6.4.39403.]

Abstract

Heavy metals occur naturally in environment and can find in close to all plant, animal and food substances. Now a day’s meat consumption is increasingly becoming a largest part of diets worldwide. On the other hands the Bioaccumulation of toxic metals from anthropogenic pollution is potential health risk to human health through food chain. The risk associated with the exposure to heavy metals present in food product had aroused widespread concern in human health. Improvements in the food production and processing technology and increased the chances of contamination of food with various environmental pollutants, especially heavy metals. Ingestion of these contaminants by animals causes deposition of residues in meat. This study was focused to detect the levels of selected heavy metals cadmium, chromium, lead and zinc in fresh meat from five types of chicken generally (gallus gallus) found in Bangladesh. The considered samples were liver, gizzard and brain. The samples were been digested by acid digestion procedure. The detection procedures were been operated by Flame Atomic Absorption Spectrophotometric Analysis (FAAS). The levels of metals in the chicken samples were ranged between (0.998) mg/kg to (2.497) mg/kg for Cd; (0.499) mg/kg to (8.732) mg/kg for Cr; (1.198) mg/kg to (49.008) mg/kg for Pb and below destructive level to (619.648) mg/kg for Zn. The concentrations of heavy toxic and essential metals in the collected sample were high and exceeded legal limits set by many health authorities. The obtained results show that human consumers in Bangladesh may be suffer a healthy risk-to some extent-from consumption to meats and meat products when compared with levels stipulated by several health authorities.

Fluoride Distribution In Drinking Water of Arid Zone (Balotra,District Barmer) of Rajasthan, India

Sanwal Ram, Dr S K Pramanik, Dr Raviraj Singh, Vimla Chowdhary,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4,389-393.[DOI: 10.24214/jecet.A.6.4.389393.]

Abstract

Some environmental samples of drinking water were analysed for the determination of fluoride content. All samples were collected from various locations of Balotra, Distric Barmer, Rajasthan. Drinking-water is typically the largest single contributor to daily fluoride intake. Fluoride has both beneficial and harmful effects on the human health depending upon its level. There is a need to assess the concentration of fluoride in drinking water. The average fluoride concentration in 35 drinking waters samples was 0.3.0mg/l -3.0 mg/l the level of dissolved fluoride and all samples compared with WHO (limit value of 1.5 mg/l for fluoride in drinking water) permissible values and IS 10500. The maximum fluoride concentration (3.0 mg/l) was found in drinking water of the Roopadevi, while minimum (0.3 mg/l) was found in Asotara region. Hence its conclude that the concentration of fluoride in drinking water are not uniform in the area of different location.

A Study on Maritime Search and Rescue Infrastructure of Taiwan and Neighboring Coastal States

Fu-Chiang Yang and Cheng-Yu Lin, JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 377-388, [DOI: 10.24214/jecet.A.6.4.37788.]

Abstract

The purpose of this paper is to offer a concrete suggestion to the authority, through comparison of the Maritime Search and Rescue (MSAR) system between Taiwan and neighboring coastal states, from dimensions of command chain, dispatching, equipment, training and human resources. The following points were discussed: (1) Taiwan’s MSAR facilities for further enhancement; (2) The policy for Taiwan Coast Guard Administration to upgrade its MSAR facilities and efficiency