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11.
Ali Neelum Khan Sardar Khan Muhammad Amjad Waqas Muhammad Yao Huaiying 《Environmental science and pollution research international》2019,26(9):8808-8820
Environmental Science and Pollution Research - A comprehensive study was conducted to appraise the concentrations of 30 endocrine disrupting pesticides (EDPs) in soil and vegetable samples... 相似文献
12.
Amjad Adnan Randhawa Muhammad Atif Javed Muhammad Sameem Muhammad Zafarullah Ashraf Mussawar Ahmad Zulfiqar Murtaza Shamas 《Environmental science and pollution research international》2020,27(32):39693-39701
Environmental Science and Pollution Research - This study was designed to assess the gradual increase in the use of insecticides on vegetables and to familiarize the consumers regarding the... 相似文献
13.
Dental clinics: a point pollution source, not only of mercury but also of other amalgam constituents
Current literature suggests that amalgam waste from dental clinics is a point-source of mercury pollution in the environment. However, apart from mercury, other amalgam constituents (e.g. Ag, Sn, Cu, and Zn) in dental clinics’ wastewater have not been reported in the literature before. The objective of this study was to evaluate the concentrations of mercury and other metals in the wastewater of some dental clinics and the influent of a wastewater treatment plant in Al-Madinah Al-Munawarah (KSA). Samples were collected over a 2-month period from three dental clinics and analyzed for metals using ICP-MS. The mean concentrations of Hg, Ag, Sn, Cu, and Zn in the samples were 5.3 ± 11.1, 0.49 ± 0.96, 3.0 ± 10.7, 10.0 ± 14.5, and 76.7 ± 106 mg L−1, respectively. Additionally, high concentrations of other metals such as Mg (14.4 ± 15.2 mg L−1), Mn (3.0 ± 4.6 mg L−1), Fe (3.0 ± 4.5 mg L−1), Sr (1.6 ± 2.4 mg L−1), and Ba (6.9 ± 10.3 mg L−1) were also found. These values are much higher than the local permissible limits. Most of the metals of interest were also detected in the influent of the wastewater treatment plant. This renders dental clinics wastewater a hazardous waste which should be properly treated before it is discharged into the environment. 相似文献
14.
Amjad Ahmad Abbass Kashif Hussain Yasir Khan Farina Sadiq Shahzad 《Environmental science and pollution research international》2022,29(44):66622-66639
Environmental Science and Pollution Research - The idea of sustainable development and green supply chain management is considered at the underlying stage in the research and academic fields,... 相似文献
15.
Saeed Usman Khan Asim Laeeq Gilani Mazhar Amjad Aslam Muhammad Khan Asad Ullah 《Environmental science and pollution research international》2021,28(26):33994-34008
Environmental Science and Pollution Research - Betaine-based natural deep eutectic solvents (NADESs), a new class of green solvents, were immobilized into a porous polyvinylidene fluoride (PVDF)... 相似文献
16.
Chhay Leaksmy Reyad Md Amjad Hossain Suy Rathny Islam Md Rafiqul Mian Md Manik 《Journal of Material Cycles and Waste Management》2018,20(3):1761-1770
Journal of Material Cycles and Waste Management - In the developing countries, the inadequacy of basic waste data is a significant obstacle for municipal solid waste management. To evaluate an... 相似文献
17.
Hassan Taghipour Zahra Amjad Mohamad Asghari Jafarabadi Akbar Gholampour Parviz Nowrouz 《Waste management (New York, N.Y.)》2014,34(7):1251-1256
From environmental viewpoint, the most important advantage of compact fluorescent lamps (CFLs) is reduction of green house gas emissions. But their significant disadvantage is disposal of spent lamps because of containing a few milligrams of toxic metals, especially mercury and lead. For a successful implementation of any waste management plan, availability of sufficient and accurate information on quantities and compositions of the generated waste and current management conditions is a fundamental prerequisite. In this study, CFLs were selected among 20 different brands in Iran. Content of heavy metals including mercury, lead, nickel, arsenic and chromium was determined by inductive coupled plasma (ICP). Two cities, Tehran and Tabriz, were selected for assessing the current waste management condition of CFLs. The study found that waste generation amount of CFLs in the country was about 159.80, 183.82 and 153.75 million per year in 2010, 2011 and 2012, respectively. Waste generation rate of CFLs in Iran was determined to be 2.05 per person in 2012. The average amount of mercury, lead, nickel, arsenic and chromium was 0.417, 2.33, 0.064, 0.056 and 0.012 mg per lamp, respectively. Currently, waste of CFLs is disposed by municipal waste stream in waste landfills. For improving the current conditions, we propose by considering the successful experience of extended producer responsibility (EPR) in other electronic waste management. The EPR program with advanced recycling fee (ARF) is implemented for collecting and then recycling CFLs. For encouraging consumers to take the spent CFLs back at the end of the products’ useful life, a proportion of ARF (for example, 50%) can be refunded. On the other hand, the government and Environmental Protection Agency should support and encourage recycling companies of CFLs both technically and financially in the first place. 相似文献
18.
Yin Liu Matthias C. Rillig Quan Liu Jingjing Huang Muhammad Amjad Khan Xiaohui Li Qin Liu Qingqing Wang Xuesong Su Linyi Lin Yang Bai Genmao Guo Yi Huang Yong Sik Ok Shan Hu Junfeng Wang Honggang Ni Qing Huang 《Frontiers of Environmental Science & Engineering》2023,17(9):110
19.
Daraghmeh A Shraim A Abulhaj S Sansour R Ng JC 《Environmental geochemistry and health》2007,29(1):45-50
The aim of this work was to report on imidacloprid [IUPAC name 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine] residues in some vegetables, fruits, and water samples collected from the West Bank, Palestine,
in 1998 and 1999. Imidacloprid and its derivatives in the study samples were extracted by methanol/water and oxidized into
6-chloronicotinic acid and subsequently derivatized into 6-chloronicotinic acid trimethylsilyl ester before being determined
by GC/MS. Imidacloprid residues were detected in more than half of the analyzed samples. The highest and lowest imidacloprid
concentrations were found in eggplant (0.46 mg/kg) and green beans (0.08 mg/kg), respectively. An increase of 11–120% in imidacloprid
concentration in the 1999 samples was observed when compared with those of 1998. This may suggest imidacloprid accumulation
in the soil and/or increased use by local farmers. The imidacloprid residue concentrations in several crops were found to
exceed the CODEX maximum residue limit. 相似文献
20.
Zooplankton samples from the North Arabian Sea Environment and Ecosystem Research (NASEER) cruises were analyzed to determine
the basic taxonomic composition, biomass (standing stock) and the total and copepod numeric abundance; these characteristics
are discussed with reference to the different monsoon periods. Cruises carried out during March 1993 and May 1994, categorized
as pre-southwest monsoon periods, and a cruise in December 1994, categorized as a northeast monsoon period, are discussed
in detail. The biomass of January 1992 versus August 1992 and August 1992 versus March 1993 differed significantly (F = 6.44, P≤ 0.05). Ranges of highest and lowest biomass from each cruise are also given. Distinct “high” and “low” production areas
of statistically significant difference (F = 12.67, P≤ 0.05) were observed. The “high” and “low” production areas were mobile and followed the surface wind circulation patterns
(wind reversal pattern) during the northeast and southwest monsoon periods. Overall zooplankton showed a patchy distribution.
The overall zooplankton abundance and total copepod counts differed significantly between the Cruises 3 versus 4 and 4 versus
5 (F = 15.67, P≤ 0.05 and F = 34.39, P≤ 0.05, respectively). There was no significant difference (P≥ 0.05) in biomass, between eutrophic and oligotrophic stations, suggesting no difference between near shore and offshore
waters. Thirty-eight taxonomic groups were identified from the samples, with copepods being the most dominant group, followed
by chaetognaths and siphonophores. Copepods constitute an average of 52.50 to 74.93% of the total zooplankton count and reach
maxima of 92.14% of the total zooplankton count at the outset of the southwest monsoon (March 1993) and 91.39% at the outset
of the active northeast monsoon (December 1994).
Received: 27 February 1998 / Accepted: 8 October 1999 相似文献