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1.
Nahid Akhtar Hidetoshi Inada Taisuke Kondo 《Environmental pollution (Barking, Essex : 1987)》2010,158(5):1763-1767
To clarify the effects of O3 on crop plants cultivated in Bangladesh, two Bangladeshi wheat cultivars (Sufi and Bijoy) were grown in plastic boxes filled with Andisol and exposed daily to charcoal-filtered air or O3 at 60 and 100 nl l−1 (10:00-17:00) from 13 March to 4 June 2008. The whole-plant dry mass and grain yield per plant of the two cultivars at the final harvest were significantly reduced by the exposure to O3. Although there was no significant effect of O3 on stomatal diffusive conductance to H2O of flag leaf, net photosynthetic rate of the leaf was significantly reduced by the exposure to O3. The sensitivity of growth, yield, yield components and leaf gas exchange rates to O3 was not significantly different between the two cultivars. The results obtained in the present study suggest that ambient levels of O3 may detrimentally affect wheat production in Bangladesh. 相似文献
2.
A surfactant mediated cloud point extraction (CPE) procedure has been developed to remove color from wastewater containing
malachite green using Triton X-100 as non-ionic surfactant. The effects of the concentration of the surfactant, temperature
and salt concentration on the different concentrations of dye have been studied and optimum conditions were obtained for the
removal of malachite green. The concentration of malachite green in the dilute phase was measured using UV–Vis spectrophotometer.
It was found that the separation of phases was complete and the recovery of malachite green was very effective in the presence
of NaCl as an electrolyte. The results showed that up to 500 ppm of malachite green can quantitatively be removed (>95%) by
CPE procedure in a single extraction using optimum conditions. 相似文献
3.
The conventional deterministic approach based (DAB) methods are simple and widely used to determine an adequate chain pillar size in coal mines where geological settings, coal characterizations and mining methods have been explored. It is evident that such deterministic methods have some intrinsic limitations in handling uncertainties in material properties, non-regular geometries and different mining operations. In the deterministic stability analysis of a chain pillar, the safety factors as well as all input parameters are deterministic. Although, these parameters generally exhibit uncertainty and should lead to a probabilistic expression for the safety factor. The probabilistic analysis provides a confidence interval to express the reliability of chain pillars stability.In this paper, safety factor is defined as a probabilistic function and the failure probability of designed chain pillar of Tabas coal mine is then evaluated using the First Order Second Moment (FOSM) and the Advanced Second Moment (ASM) methods. The results of the probabilistic stability analysis show that the confidence interval for designed pillars with both mentioned methods applied are similar and their values vary from 84% to 88%. The results of such analyses can be used as a basis for decision-making about the size of chain pillars and reduce the risk of pillars stability as well as the uncertainties. However, a trade-off between cost is essential for making the final decision. 相似文献
4.
Sultana Nahid Rahman Mohammad Mafizur Khanam Rasheda 《Environment, Development and Sustainability》2022,24(4):5426-5450
Environment, Development and Sustainability - This study has investigated the Environmental Kuznets Curve (EKC) hypothesis and focuses on the resource stock of the country in relation to the... 相似文献
5.
Ramaiah Pushpamala Altalbawy Farag M. A. Margiana Ria Kumar N. Bharath Kahar Fitriani Jalil Abduladheem Turki Komariah Aan Failoc-Rojas Virgilio E. Kadhim Mustafa M. Sivaraman R. Iswanto A. Heri Mustafa Yasser Fakri Najafi Moslem Lari 《Environmental science and pollution research international》2023,30(8):19592-19601
Environmental Science and Pollution Research - Exposure to polycyclic aromatic hydrocarbons (PAHs) during pregnancy has been associated with many adverse child health. However, the evidence on such... 相似文献
6.
Mohammad Behbahani Fatemeh Najafi Saman Bagheri Majid Kalate Bojdi Parmoon Ghareh Hassanlou Akbar Bagheri 《Environmental monitoring and assessment》2014,186(4):2609-2618
A simple, rapid, and efficient sample pretreatment technique, based on solvent-based de-emulsification dispersive liquid–liquid microextraction (SD-DLLME), followed by high performance liquid chromatography (HPLC) has been developed for simultaneous preconcentration and trace detection of 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-methyl-4-chlorophenoxyacetic acid (MCPA) in water and urine samples. Some parameters such as acidity of solution, the amount of salt, type, and volume of extraction solvents, type of disperser/de-emulsifier solvent, and its volume were investigated and optimized. Under optimum extraction conditions, the limits of detections (LODs) of this method for MCPA and 2,4-D were 0.2 and 0.6 μg L?1 (based on 3Sb/m) in water and 0.4 and 1.6 μg L?1 in urine, respectively. Furthermore, dynamic linear range of this method for MCPA and 2,4-D was 1–300 and 2–400 μg L?1, repectively. Finally, the applicability of the proposed method was evaluated by extraction and determination of the herbicides in urine and different water samples. 相似文献
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8.
Investigation of the possible sources of heavy metal contamination in lagoon and canal water in the tannery industrial area in Dhaka, Bangladesh 总被引:2,自引:0,他引:2
9.
Nouhjah Sedigheh Shahbazian Hajieh Jahanfar Shayesteh Shahbazian Nahid 《Environmental science and pollution research international》2021,28(46):65428-65434
Environmental Science and Pollution Research - Despite the increasing prevalence of gestational diabetes mellitus and well-known long-term metabolic consequences, a low rate of postpartum screening... 相似文献
10.
Saeed Kazemi Najafi 《Waste management (New York, N.Y.)》2013,33(9):1898-1905
The use of recycled and waste thermoplastics has been recently considered for producing wood plastic composites (WPCs). They have great potential for WPCs manufacturing according to results of some limited researches. This paper presents a detailed review about some essential properties of waste and recycled plastics, important for WPCs production, and of research published on the effect of recycled plastics on the physical and mechanical properties of WPCs. 相似文献