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151.
152.
Araújo Leylia K. F. Albuquerque Allan A. Ramos Weslley C. O. Santos Alef T. Carvalho Sandra H. V. Soletti João I. Bispo Mozart D. 《Environment, Development and Sustainability》2021,23(8):11732-11750
Environment, Development and Sustainability - The activated biochar is a carbonaceous material obtained from thermal degradation of biomass with high adsorption potential. On the other hand, the... 相似文献
153.
Musharrat Azam Jamal Othman Rawshan Ara Begum Sharifah Mastura Syed Abdullah Nor Ghani Md. Nor 《Environment, Development and Sustainability》2016,18(4):1027-1047
This study has attempted to estimate the energy consumption and emission of pollutants namely carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx) and non-methane volatile organic compounds (NMVOC) from the road transport sector in Malaysia from the year 2012 till 2040. This was done using the long-range energy alternatives planning (LEAP) model. Estimates of energy consumption and emissions were evaluated and analysed under a business-as-usual scenario and three other alternative fuel policy scenarios of biodiesel vehicles (BIO), natural gas vehicles (NGV) and hybrid electric vehicles (HEV). The aim of this study has been to identify the potential alternative fuel policies that would be effective in reducing the future growth of road transport energy consumption and emission in Malaysia. Results indicate that the NGV scenario contributes towards the highest reduction in road transport energy consumption followed by BIO and HEV. The NGV scenario also achieves highest mitigation of emission of all the four pollutants. In the case of CO2 emission, BIO scenario attains second highest mitigation, whereas in the event of CO, NOx and NMVOC emission, HEV scenario achieves second highest mitigation. 相似文献
154.
155.
Thiago M. R. Araújo Maria C. Canela Paulo C. M. L. Miranda 《Journal of environmental science and health. Part. B》2013,48(4):251-259
This work presents a study of the abiotic degradation of commercially available methyl parathion in aqueous solution at two different concentrations (88 mg/L and 200 μg/L). The effects of solar irradiation and the presence of humic acids were evaluated and revealed a synergistic response between them. The half-life of methyl parathion ranged from 4.9 to 37 days, and the experimental data also show that photochemical processes were the most relevant in this case. The only byproduct found in samples submitted to shadowed conditions was 4-nitrophenol. On the other hand, 4-nitrophenol, methyl paraoxon and a new degradation product (O,O-dimethyl O-p-hydroxyphenyl phosphorothioate) were detected when the samples were exposed directly to sunlight. This newly identified compound was prepared in the laboratory by thiophosphorylation of hydroquinone, and coelution experiments with authentic samples provided unambiguous confirmation of the presence of O,O-dimethyl O-p-hydroxy phenylphosphorothioate in samples. 相似文献
156.
Integrated spatiotemporal trends using TRMM 3B42 data for the Upper São Francisco River basin,Brazil
Celso Augusto Guimarães Santos Reginaldo Moura Brasil Neto Richarde Marques da Silva Jacqueline Sobral de Araújo Passos 《Environmental monitoring and assessment》2018,190(3):175
Trend analysis is an important issue for the decision-making processes. Thus, trends of rainfall, consecutive dry days (CDD), and consecutive wet days (CWD) in the Upper São Francisco River basin, Brazil, using daily rainfall data from the Tropical Rainfall Measuring Mission (TRMM) for recent 18 years, were analyzed. Instead of analyzing the trend of one average time series for one specific confidence level, a spatiotemporal analysis over the entire area with 169 continuous time series is done by applying the nonparametric Mann-Kendall and Sen tests for simultaneously 13 confidence levels and a new integrated confidence classification is proposed. The results show that the rainfall has increased during the less rainy periods (from June to October) and has decreased in the rainy periods (from November to May), with the highest and lowest confidence levels, respectively. An analysis of CDD and CWD shows that the number of CDD has decreased, while the number of CWD has increased, which revealed that the dry periods are more frequently interrupted for the period studied. 相似文献
157.
Santana Antônio H. Araújo José A. S. Bento Amanda M. S. Santos Ana R. Santos Leocácia G. Gomes Hiago de O. da Costa José Galberto M. Menezes Jorge Marcell C. Coutinho Henrique Douglas Melo Filho Francisco José de P. Teixeira Raimundo Nonato P. 《Environmental geochemistry and health》2021,43(4):1583-1597
Environmental Geochemistry and Health - The contamination of bodies of water by potentially hazardous elements has in recent decades become an environmental problem that poses serious risks to... 相似文献
158.
Adelazil de?Brito?Fabricio Neta Clístenes?Williams?Araújo?do?NascimentoEmail author Caroline?Miranda?Biondi Peter?van?Straaten Sheila?Maria?Bretas?Bittar 《Environmental geochemistry and health》2018,40(1):163-173
Fernando de Noronha is a small volcanic archipelago in the Southern Atlantic, some 350 km NE of the city of Natal in NE Brazil. These remote volcanic islands represent a largely pristine environment, distant from sources of anthropogenic contamination. This study was carried out to determine the natural concentrations of Ag, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, Sb, V and Zn in the A and B horizons of soils of Fernando de Noronha. The aims of the study were twofold: determine whether there is a relationship between the bedrock geology and soils and to establish quality reference values for soils from Fernando de Noronha. Soil samples were subjected to acid digestion by the USEPA method 3051A, and metals were determined by inductively coupled plasma emission spectrophotometry. The results showed that the trace element distribution largely reflects the geochemistry of the underlying volcanic rocks of the Remedios and Quixaba Formations. The results demonstrate that the concentrations of Ba, Cr, Zn, Ni and Cu from the soils of the volcanic Fernando de Noronha archipelago are higher than those found in soils from continental Brazil. However, concentrations of Ni, Cu and Co are lower in soils of the archipelago as compared to other volcanic islands throughout the world. The elevated trace element concentrations of the volcanic parent material of Fernando de Noronha soils seem to be the main factor governing the relatively high natural concentrations of trace elements. 相似文献
159.
Rahman Md. Mominur Islam Md. Rezaul Shohag Sheikh Hossain Md. Emon Shah Muddaser shuvo Shakil khan Khan Hosneara Chowdhury Md. Arifur Rahman Bulbul Israt Jahan Hossain Md. Sarowar Sultana Sharifa Ahmed Muniruddin Akhtar Muhammad Furqan Saleem Ammara Rahman Md. Habibur 《Environmental science and pollution research international》2022,29(31):46527-46550
Environmental Science and Pollution Research - COVID-19, which is caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has quickly spread over the world, posing a... 相似文献
160.
Rakib Md.Refat Jahan Rahman Md. Asrafur Onyena Amarachi Paschaline Kumar Rakesh Sarker Aniruddha Hossain M. Belal Islam Abu Reza Md. Towfiqul Islam Md. Saiful Rahman Md. Mostafizur Jolly Yeasmin Nahar Idris Abubakr M. Ali Mir Mohammad Bilal Muhammad Sun Xian 《Environmental science and pollution research international》2022,29(45):67532-67558
Environmental Science and Pollution Research - The coastal zone of Bangladesh, with a population density of 1278 people per square kilometer, is under serious threat due to heavy metal pollution.... 相似文献