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531.
Singh Nishi Kumari Choudhary Sangeeta 《Environmental science and pollution research international》2021,28(42):58819-58836
Environmental Science and Pollution Research - Hydrocarbon is a primary source of energy in the current urbanized society. Considering the increasing demand, worldwide oil productions are declining... 相似文献
532.
Markandeya Verma Pradeep Kumar Mishra Vibhuti Singh Neeraj Kumar Shukla Sheo Prasad Mohan Devendra 《Environmental science and pollution research international》2021,28(9):10536-10551
Environmental Science and Pollution Research - The present work aims to investigate seasonal variations in air pollution levels in Lucknow and assess the ambient air quality of the city together... 相似文献
533.
Rajak Jai Kishan Khandelwal Nitin Behera Mahima Prasad Tiwari Ekta Singh Nisha Ganie Zahid Ahmad Darbha Gopala Krishna Abdolahpur Monikh Fazel Schäfer Thorsten 《Environmental science and pollution research international》2021,28(31):41760-41771
Environmental Science and Pollution Research - Chromite ore processing residues (COPR) are real environmental threats, leading to CrO42-, i.e., Cr (VI) leaching into groundwater. It is of serious... 相似文献
534.
G Singh A Dowman F R Higginson I G Fenton 《Journal of environmental science and health. Part. B》1992,27(6):711-728
Field trials were conducted to measure translocation of pesticides by summer and winter forage/pasture species from soil containing aged residues of heptachlor and, to a lesser extent, dieldrin. Substantial amounts of heptachlor epoxide, and lesser amounts of gamma-chlordane were translocated to plants from contaminated soil. Residue levels varied with crop species and stage of plant development. In summer crops residues were higher in soybean > cowpeas > lab-lab > Sorghum > millet > sweet saccaline at the grazing and mature stages. Compared to glasshouse studies undertaken previously, residues in crops grown under field conditions were much lower. This apparently reflects the lower soil moisture levels and the reduced rates of translocation. Heptachlor residues in winter crops were highest in Saia oats > Berseem clover > Haifa clover > Cassia oats > Tetila ryegrass > Schooner barley > Shaftal clover > Hunter river lucerne at the grazing stage. There were no detectable levels in barley and oats at the mature stage. No dieldrin residues were translocated into the various crop species. 相似文献
535.
Summary The ability of fly ash to remove Zn(II) from water by adsorption has been tested at different concentrations, temperatures and pH of the solution. It was found that low adsorbate concentration, small particle size of adsorbent and higher temperature favoured the removal of Zn(II) from aqueous solution. The Langmuir isotherm was used to represent the equilibrium data at different temperatures. The apparent heat of adsorption has been found to be 17.325 Kcal mol–1, which indicates the process to be endothermic. The uptake of Zn(II) is diffusion controlled and the mass transfer coefficient is 3.56 × 10–5
cm s
–1.The maximum removal was noted at pH 7.5.
Dr V.N. Singh is Professor and Head of the Department of Applied Chemistry, Dr A.K. and Prof. D.P. Singh are members of the Department of Mining Engineering; all are situated in the Institute of Technology at Banaras Hindu University. 相似文献
536.
M. Qadir E. Quillérou V. Nangia G. Murtaza M. Singh R.J. Thomas P. Drechsel A.D. Noble 《Natural resources forum》2014,38(4):282-295
Food security concerns and the scarcity of new productive land have put productivity enhancement of degraded lands back on the political agenda. In such a context, salt‐affected lands are a valuable resource that cannot be neglected nor easily abandoned even with their lower crop yields, especially in areas where significant investments have already been made in irrigation and drainage infrastructure. A review of previous studies shows a very limited number of highly variable estimates of the costs of salt‐induced land degradation combined with methodological and contextual differences. Simple extrapolation suggests that the global annual cost of salt‐induced land degradation in irrigated areas could be US$ 27.3 billion because of lost crop production. We present selected case studies that highlight the potential for economic and environmental benefits of taking action to remediate salt‐affected lands. The findings indicate that it can be cost‐effective to invest in sustainable land management in countries confronting salt‐induced land degradation. Such investments in effective remediation of salt‐affected lands should form part of a broader strategy for food security and be defined in national action plans. This broader strategy is required to ensure the identification and effective removal of barriers to the adoption of sustainable land management, such as perverse subsidies. Whereas reversing salt‐induced land degradation would require several years, interim salinity management strategies could provide a pathway for effective remediation and further showcase the importance of reversing land degradation and the rewards of investing in sustainable land management. 相似文献
537.
Goel Abhishek Kumar Singh Shailendra Narayan 《Environmental science and pollution research international》2021,28(16):19958-19958
Environmental Science and Pollution Research - A Correction to this paper has been published: https://doi.org/10.1007/s11356-021-12458-z 相似文献
538.
Anamika Agarwal Harminder Pal Singh J. P. N. Rai 《Environmental science and pollution research international》2014,21(13):7938-7944
The aim of present study was to remediate chromium (Cr)-contaminated soil by Crotalaria juncea in the presence of Pseudomonas fluorescens. Inoculation of P. fluorescens in pot soil grown with C. juncea significantly increased (~2-fold) the water-soluble (Ws) and exchangeable (Ex) Cr contents in contaminated soil under greenhouse condition. It also enhanced the chlorophyll content by 92 % and plant biomass by 99 % as compared to the uninoculated C. juncea plant. The analysis showed that root and shoot uptake of Cr in C. juncea inoculated by P. fluorescens was 3.08- and 2.82-fold, respectively. This research showed that the association of C. juncea and P. fluorescens could be a promising technology for increasing the soil Cr bioavailability and plant growth for successful phytoextraction of Cr from the contaminated soil. 相似文献
539.
Ranjan Shivendu Dasgupta Nandita Singh Satnam Gandhi Mansi 《Environmental Chemistry Letters》2019,17(2):929-944
Environmental Chemistry Letters - Food nanotechnology has been rapidly growing in last decade due to the unique properties of nanomaterials. Nonetheless, the presence of nanomaterials in food... 相似文献
540.
Adsorption thermodynamic studies of phosphomidon on fly ash at 25° and 50°C have been analysed as adsorption isotherms, Freundlich equations, Kd values and various other thermodynamic parameters. These data were in close agreement with Freundlich isotherms and yield ‘S’ type isotherms at both the temperatures. Thermodynamic constants (Ko) and standard free energy (ΔG°), enthalpy (ΔH°) and entropy changes (ΔS°) have been calculated for predicting the nature of adsorption. 相似文献