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41.
Rattigan O. V. Dutkiewicz Vincent A. Das Mita Judd C. D. Husain Liaquat 《Water, Air, & Soil Pollution: Focus》2001,1(5-6):391-400
In-cloud oxidation of SO2 byH2O2 was investigated using a tracertechnique based on SO2–
4/Se ratios atWhiteface Mountain, New York during summer months from1990 to 1998. Cloud water samples collected at themountain's summit (1.5 km above mean sea level) andaerosols at a below cloud site (Lodge) located at 0.6km amsl and in cloud interstitial air at the summitwere analyzed for SO2–
4 and selectedtrace elements. Gaseous SO2 andH2O2were measured in realtime. Cloud water pH wasgenerally below 5.0 with a mean value of 3.6. Theresults show that significant in cloud oxidation occursin clouds during summer months varying from belowdetection to 62% with on average approximately 24% ofthe cloud water SO2–
4 produced from in-situ SO2 oxidation. During summer the clouds wereoxidant limited for approximately one third of thetime. 相似文献
42.
Kaczala Fabio Mehdinejad Mohammad Hadi Lääne Allar Orupõld Kaja Bhatnagar Amit Kriipsalu Mait Hogland William 《Journal of Material Cycles and Waste Management》2017,19(1):294-304
Journal of Material Cycles and Waste Management - Leaching of fine fraction (<10 mm) obtained from landfill mining activities in an Estonian landfill was done. On-site excavation... 相似文献
43.
Ravanipour Masoumeh Hadi Mahdi Rastkari Noushin Hemmati Borji Saeedeh Nasseri Simin 《Environmental science and pollution research international》2021,28(21):26223-26251
Environmental Science and Pollution Research - Water quality is one of the most important indices for public health especially for drinking water consumptions. This study was conducted to survey... 相似文献
44.
Fluoride contamination in groundwater of central Rajasthan,India and its toxicity in rural habitants
This study was carried out to assess fluoride (Fl) concentration in groundwater in some villages of central Rajasthan, India, where groundwater is the main source of drinking water. Water samples collected from deep aquifer-based hand pumps were analyzed for Fl content. Fluoride in groundwater of 121 habitations of Bhilwara tehsil of Bhilwara district of Rajasthan was determined to examine the potential Fl-induced toxicity in rural locations. Fluoride concentrations in the tehsil ranged from 0.5 to 5.8 mg/l. In the tehsil, 69 villages (57%) were found to have Fl concentration beyond the maximum desirable limit recommended in Bureau of Indian Standards (BIS), 10500, 1991. Fifty-eight percent population of these villages was under the threat of fluorosis. One percent population of tehsil living in two villages ingested more than 5 mg/l Fl in each liter of drinking water and at maximal risk for dental and skeletal fluorosis. 142 individuals of these villages were examined for fluorosis. Data indicated that only four individuals (2.82%) did not exhibit dental fluorosis. Most individuals were found to suffer from mild (34.51% or 49 individuals) and moderate (31.69% or 45 individuals) fluorosis. Severe dental fluorosis was recorded in only 16 individuals (11.27%). In 104 individuals above 21 years of age examined for the prevalence of skeletal fluorosis, 66 were positive for skeletal fluorosis with a maximum 36.5% with grade I skeletal fluorosis. Grade II skeletal fluorosis was recorded in 28 individuals (26.9%). Data in this study demonstrate that there is a need to take ameliorative steps in this region to prevent fluorosis. 相似文献
45.
Mohit H. Sanjay M. R. Siengchin Suchart Khan Anish Marwani Hadi M. Dzudzevic-Cancar Hurija Asiri Abdullah M. 《Journal of Polymers and the Environment》2021,29(8):2609-2627
Journal of Polymers and the Environment - The present investigation was performed to study the effect of titanium carbide (TiC) nanoparticles and coir fiber as hybrid reinforcements on the... 相似文献
46.
Ambio - The Syrian crisis caused a massive influx of displaced people into neighboring countries, with Lebanon hosting the highest per capita number of refugees (3:10). Water remains the most... 相似文献
47.
A new strategy for determination of hydroxylamine and phenol in water and waste water samples using modified nanosensor 总被引:2,自引:0,他引:2
Roya Sadeghi Hassan Karimi-Maleh Mohammad A. Khalilzadeh Hadi Beitollahi Zahra Ranjbarha Mohammad Bagher Pasha Zanousi 《Environmental science and pollution research international》2013,20(9):6584-6593
A carbon paste electrode modified with p-chloranil and carbon nanotubes was used for the sensitive and selective voltammetric determination of hydroxylamine (HX) and phenol (PL). The oxidation of HX at the modified electrode was investigated by cyclic voltammetry (CV), chronoamperommetry, and electrochemical impedance spectroscopy. The values of the catalytic rate constant (k), and diffusion coefficient (D) for HX were calculated. Square wave voltammetric peaks current of HX and PL increased linearly with their concentrations at the ranges of 0.1–172.0 and 5.0–512.0 μmol L?1, respectively. The detection limits for HX and PL were 0.08 and 2.0 μmol L?1, respectively. The separation of the anodic peak potentials of HX and PL reached to 0.65 V, using square wave voltammetry. The proposed sensor was successfully applied for the determination of HX and PL in water and wastewater samples. 相似文献
48.
Furquan Ahmad Ansari Altaf Husain Khan Devendra Kumar Patel Huma Siddiqui Shachi Sharma Mohammad Ashquin Iqbal Ahmad 《Environmental monitoring and assessment》2010,170(1-4):491-497
In order to evaluate the exposure of the northern India rural population to polyaromatic hydrocarbon (PAH) inhalation, indoor pollution was assessed by collecting and analyzing the respirable particulate matter PM2.5 and PM10 in several homes of the village Bhithauli near Lucknow, UP. The home selection was determined by a survey. Given the nature of biomass used for cooking, homes were divided into two groups, one using all kinds of biomass and the second type using plant materials only. Indoor mean concentrations of PM2.5 and associated PAHs during cooking ranged from 1.19 ± 0.29 to 2.38 ± 0.35 and 6.21 ± 1.54 to 12.43 ± 1.15 μg/m3, respectively. Similarly, PM10 and total PAHs were in the range of 3.95 ± 1.21 to 8.81 ± 0.78 and 7.75 ± 1.42 to 15.77 ± 1.05 μg/m3, respectively. The pollutant levels during cooking were significantly higher compared to the noncooking period. The study confirmed that indoor pollution depends on the kind of biomass fuel used for cooking. 相似文献
49.
Borhan Mansouri Alireza Pourkhabbaz Hadi Babaei Ebrahim Hoshyari 《Environmental monitoring and assessment》2012,184(12):7687-7687
50.
Simultaneous determination of hydroxylamine and phenol using a nanostructure-based electrochemical sensor 总被引:1,自引:0,他引:1
Hadi Mahmoudi Moghaddam Hadi Beitollahi Somayeh Tajik Mohammad Malakootian Hassan Karimi Maleh 《Environmental monitoring and assessment》2014,186(11):7431-7441
The electrochemical oxidation of hydroxylamine on the surface of a carbon paste electrode modified with carbon nanotubes and 2,7-bis(ferrocenyl ethyl)fluoren-9-one is studied. The electrochemical response characteristics of the modified electrode toward hydroxylamine and phenol were investigated. The results showed an efficient catalytic activity of the electrode for the electro-oxidation of hydroxylamine, which leads to lowering its overpotential. The modified electrode exhibits an efficient electron-mediating behavior together with well-separated oxidation peaks for hydroxylamine and phenol. Also, the modified electrode was used for determination of hydroxylamine and phenol in some real samples. 相似文献