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271.
Agrawal Yash Siddique Salman Sharma Ravi K. Gupta Trilok 《Journal of Material Cycles and Waste Management》2021,23(2):686-698
Journal of Material Cycles and Waste Management - Granite mining, cutting and processing generates huge amount of waste which is dumped in open landfills. The objective of this research is to... 相似文献
272.
Environmental Chemistry Letters - Steroids are important scaffolds for the synthesis of molecules of pharmaceutical interest and constitute a distinct family of natural products. The demand for... 相似文献
273.
R. Srinivas Ajit Pratap Singh Ayush Aman Gupta Piyush Kumar 《Environmental monitoring and assessment》2018,190(12):720
Global scarcity of freshwater has been gearing towards an unsustainable river basin management and corresponding services to the humans. It needs a holistic approach, which exclusively focuses on effective river water quality monitoring and quantification and identification of pollutant sources, in order to address the issue of sustainability. These days, rivers are heavily contaminated due to the presence of organic and metallic pollutants released from several anthropogenic sources, such as industrial effluents, domestic sewage, and agricultural runoff. It is astonishing to note that even in many developing countries, most of these contaminants are carried through open drains, which enter river premises without proper treatment. Such practice not only devastates riverine ecosystem but also gives rise to deadly diseases, such as minimata and cancer in humans. Considering these issues, the present study develops a novel approach towards simultaneous identification of major sources of pollution in the rivers, along with critical pollutants and locations using an advanced hierarchical cluster and multivariate statistical analysis. A systematic approach has been developed by agglomerating both R-mode and Q-mode analysis, which develops monoplots, two-dimensional biplots, rotated component matrices, and dendrograms (using “SPSS” and “Analyse It” software) to reveal relationships among various quality parameters to identify the pollutant sources along with clustering of critical sampling sites and pollutants. A case study of the Ganges River Basin of India has been considered to demonstrate the efficacy and usefulness of the model by analyzing 85 open drains. Both organic and metallic pollutants are analyzed simultaneously as well as separately to get a holistic understanding of all the relationships and to broaden the perspective of water characterization. Results provide a comprehensive guidance to the policy makers and water managers to optimize corrective efforts, minimize further damage, and improve the water quality condition to ensure sustainable development of the river basin. 相似文献
274.
275.
In recent decades, significant progress has been made toward reconstructing the past climate record based on environmental proxies, such as tree rings and ice core records. However, limited examples of research that utilizes such data for water resources decision-making and policy exist. Here, we use the reconstructed record of Palmer Drought Severity Index (PDSI), dating back to 1138AD to understand the nature of drought occurrence (severity and duration) in the state of Maine. This work is motivated by the need to augment the scientific basis to support the water resources management and the emerging water allocation framework in Maine (Maine Department of Environmental Protection, Chapter 587). Through a joint analysis of the reconstructed PDSI and historical streamflow record for twelve streams in the state of Maine, we find that: (a) the uncertainties around the current definition of natural drought in the Chapter 587 (based on the 20th century instrumental record) can be better understood within the context of the nature and severity of past droughts in this region, and (b) a drought index provides limited information regarding at-site hydrologic variations. To fill this knowledge gap, a drought index-based risk assessment methodology for streams across the state is developed. Based on these results, the opportunities for learning and challenges facing water policies in a changing hydroclimate are discussed. 相似文献
276.
Suman Gupta Vijay T. Gajbhiye Rakesh K. Sharma Ram K. Gupta 《Environmental monitoring and assessment》2011,177(1-4):337-342
In this study, changes in heavy metal accumulation in U. rigida J. Agardh taxon and seawater have been investigated with respect to different stations and seasons. For this purpose, the severity of heavy metal pollution in the Dardanelles has been presented through the determination of Cu, Pb, Zn, and Cd concentrations in U. rigida macroalgae and seawater taken seasonally from the stations located on six different regions on the strait. While the metal concentrations in alga specimens were found to be high in spring and winter in all stations; the metal concentrations in the seawater, particularly the Pb concentration, were found to be high in all seasons. 相似文献
277.
Gupta Rupal Pandit Chetan Pandit Soumya Gupta Piyush Kumar Lahiri Dibyajit Agarwal Daksh Pandey Sadanand 《Journal of Material Cycles and Waste Management》2022,24(3):852-876
Journal of Material Cycles and Waste Management - Various paper, oil, leather and textile industries generates a large amount of aromatic recalcitrant organic pollutants and release them into the... 相似文献
278.
Shaswati Saha Rohan Gupta Shradhanjali Sethi Rima Biswas 《Frontiers of Environmental Science & Engineering》2022,16(8):101
279.
Yatoo Ali Mohd Ali Md. Niamat Zaheen Zarka Baba Zahoor Ahmad Ali Shafat Rasool Saiema Sheikh Tahir Ahmad Sillanpää Mika Gupta Pankaj Kumar Hamid Burhan Hamid Basharat 《Environmental Chemistry Letters》2022,20(4):2573-2596
Environmental Chemistry Letters - Two million tonnes of pesticides are currently used globally to improve crop production, yet these pesticides induce adverse effects on soil quality and... 相似文献
280.
Paudel Keshav R. Mehta Meenu Yin Geena Hew Suet Yen Lee Li Malyla Vamshikrishna Patel Vyoma K. Panneerselvam Jithendra Madheswaran Thiagarajan MacLoughlin Ronan Jha Niraj Kumar Gupta Piyush Kumar Singh Sachin Kumar Gupta Gaurav Kumar Pradeep Oliver Brian G. Hansbro Philip M. Chellappan Dinesh Kumar Dua Kamal 《Environmental science and pollution research international》2022,29(31):46830-46847
Environmental Science and Pollution Research - Non-small cell lung cancer (NSCLC) is reported to have a high incidence rate and is one of the most prevalent types of cancer contributing towards 85%... 相似文献