River Ganga is considered sacred by people of India for providing life sustenance to environment and ecology. Anthropogenic activities have generated important transformations in aquatic environments during the last few decades. Human civilization has put serious questions to the safe use of river water for drinking and other purposes. The river Ganga water pollution due to heavy metals is one of the major concerns in most of the metropolitan cities of developing countries. Heavy metal concentration in sediments of Ganga River was studied significant difference between sites situated upstream and downstream of Varanasi urban core. Metal concentration increased consistently along the study gradient, indicating the influence of urban sources. These toxic heavy metals entering the environment may lead to bioaccumulation and bio-magnifications. These heavy metals are not readily degradable in nature and accumulate in the animal as well as human bodies to a very high toxic amount leading to undesirable effects beyond a certain limit. Heavy metals in the river, environment represent an abiding threat to human health. Exposure to heavy metals has been linked to developmental retardation, kidney damage, various cancers, and even death in instances of very high exposure. The following review article presents the findings of the work carried out by the various researchers in the past on the heavy metal pollution of river Ganga. Hasnahara Khatun | Dr. Arshad jamal"Geochemicals Heavy Metal Pollution of River Ganga - Causes and Impacts" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: http://www.ijtsrd.com/papers/ijtsrd9576.pdf http://www.ijtsrd.com/other-scientific-research-area/enviormental-science/9576/geochemicals-heavy-metal-pollution-of-river-ganga---causes-and-impacts/hasnahara-khatun
International Journal of Trend in Scientific Research and Development, 2 (2):
1039-1044 (February 2018)Abstract
In cloud computing, user can share data among group members with the characters of less maintenance and little management cost. Sharing data must have security guarantees, if they are out sourced. Sharing data while providing privacy preserving is still a challenging problem, when change of the membership. It might cause to the collusion attack for an unsecured cloud. For existing technique, security of key distribution is based on the secure communication channel, however, to have such channel is a strong assumption and is difficult for practice. We propose a secure data sharing scheme for dynamic users. Key distribution done without any secure communication channels and the user can get the individual key from group manager.Data deduplication is one of the techniques which used to solve the repetition of data. Our proposed system prevents the replication of files and media file like images, videos. The deduplication techniques are generally used in the cloud server for reducing the space of the server. To prevent the unauthorized use of data accessing and create duplicate data on cloud the encryption technique to encrypt the data before stored on cloud server. CloudMe is proposed for cloud storage. All files of data owners are encrypted using AES algorithm and stored in real cloud. Thus we present a secure system architecture design as our initial effort towards this direction, which bridges together the advancements of video coding techniques and secure deduplication. Our design enables the cloud with the crucial deduplication functionality to completely eliminate the extra storage and bandwidth cost. Meenambigai. D | Mathavan. VÜser Data Integrating with Anti-Collusion Scheme and SVC in Cloud Groups" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: http://www.ijtsrd.com/papers/ijtsrd9607.pdf http://www.ijtsrd.com/engineering/computer-engineering/9607/user-data-integrating-with-anti-collusion-scheme-and-svc-in-cloud-groups/meenambigai-d