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51.
Spatial variability of depth and salinity of groundwater under irrigated ustifluvents in the Middle Black Sea Region of Turkey 总被引:2,自引:0,他引:2
Yusuf Demir Sabit Erşahin Mustafa Güler Bilal Cemek Hikmet Günal Hakan Arslan 《Environmental monitoring and assessment》2009,158(1-4):279-294
Information on the potential risk for soil salinity buildup can be very helpful for soil salinity management in irrigated areas. We evaluated the spatial and temporal variability of groundwater salinity (GWS) and groundwater depth (GWD), which are two of the most important indicators of soil salinity, by indicator kriging technique in a large irrigated area in northern Turkey. GWS and GWD were measured on a monthly basis from irrigation season (August 2003) to rainy season (April 2004) at 60 observation wells in the 8,187-ha irrigated area. Five indicator thresholds were used for GWS and GWD. The semivariogram for each of the thresholds for both variables was analyzed then used together with experimental data to interpolate and map the corresponding conditional cumulative distribution functions (CCDF). Risk for soil salinity buildup was greater in the irrigation season compared to that in the rainy season. The greatest risk for soil salinity buildup occurred in the eastern part of the study area, suffering from poor drainage problem due to malfunctioning drainage infrastructure, as indicated by the CCDF of GWS and GWD obtained in both seasons. It was concluded that a combination of mechanical and cultural measures should be taken in high-risk locations to avoid further salinity problems. 相似文献
52.
Environmental irresponsibility is one of the most prominent issues confronting host communities of transnational corporations (TNCs) engaged in the production of economic goods and, sometimes, services. Drawing mainly on stakeholder theory, combined with legitimacy theory, this article addresses how host communities in Africa combat the challenge of environmental irresponsibility of TNCs. To illustrate the dimensions and dynamics of the challenge, this paper examines the experience of despoliation of Ogoniland by the oil giant Shell in Nigeria. The analysis draws attention to the significance of the role of individuals and civil society groups in securing accountability of one of the most formidable fronts of economic globalisation. The analysis is particularly relevant to the experience of environmental irresponsibility in the context of weak governance structures. 相似文献
53.
A. O. Mehder Mohamed A. Dastageer Yusuf B. Habibullah Mohammed A. Iqbal Luqman E. Oloore 《Journal of environmental science and health. Part. B》2016,51(6):358-365
Laser induced breakdown spectroscopy (LIBS) was applied for the detection of carcinogenic elements like bromine in four representative brands of loaf bread samples and the measured bromine concentrations were 352, 157, 451, and 311 ppm, using Br I (827.2 nm) atomic transition line as the finger print atomic transition. Our LIBS system is equipped with a pulsed laser of wavelength 266 nm with energy 25 mJ pulse?1, 8 ns pulse duration, 20 Hz repetition rate, and a gated ICCD camera. The LIBS system was calibrated with the standards of known concentrations in the sample (bread) matrix and such plot is linear in 20–500 ppm range. The capability of our system in terms of limit of detection and relative accuracy with respect to the standard inductively coupled plasma mass spectrometry (ICPMS) technique was evaluated and these values were 5.09 ppm and 0.01–0.05, respectively, which ensures the applicability of our system for Br trace level detection, and LIBS results are in excellent agreement with that of ICPMS results. 相似文献
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Taşan Mehmet Taşan Sevda Demir Yusuf 《Environmental science and pollution research international》2023,30(2):2866-2890
Environmental Science and Pollution Research - Excessive withdrawal of groundwater for agricultural irrigation can cause seawater intrusion into coastal aquifers. Such a case will in turn results... 相似文献
56.
Adefeso Ismail Babatunde Ikhu-Omoregbe Daniel I. Isa Yusuf Makarfi 《Journal of Material Cycles and Waste Management》2023,25(2):1179-1190
Journal of Material Cycles and Waste Management - Thermochemical conversions of the combustible components of municipal solid waste (MSW) minimize the emissions and net effects of greenhouse gas... 相似文献
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Abstract The rate and product composition during photooxidation of aromatic hydrocarbons (toluene, o‐, m‐, p‐xylene and cumene) dissolved in n‐hexane and spread as a liquid film on water is reported. The photo degradability of these chemicals is 10–20%. The products identified are oxygenated aromatic compounds. It is observed that the absorption bands of the compounds under investigation depend upon the partial pressure of dissolved oxygen and these bands extend up to 290 nm. The new absorption band around 290 nm is probably due to broadening of 1Lb bands which is responsible for direct photolysis. stream. We have been especially interested in investigating the rate of disappearance and distribution of main oxidation products in two phases. Besides that an attempt has been made to throw some light on the reaction mechanism. 相似文献
59.
Rahman Humairat H Niemann Danielle Yusuf Korede K 《Environmental science and pollution research international》2022,29(4):5496-5504
Environmental Science and Pollution Research - Arsenic is a known carcinogen and neurotoxin and is found in the natural earth crust. Arsenic exposure can develop depression, memory dysfunction, and... 相似文献
60.
Yusuf Hamza Hassan Pan Xiaofang Cai Guanjing Cai Jiasheng Huang Xuewei Ye Zhi-Long 《Environmental science and pollution research international》2022,29(44):66578-66590
Environmental Science and Pollution Research - Toilet revolution is driven by the urgent need for solutions to improve sanitation and access to high-quality organic fertilizer for rural areas,... 相似文献