全文获取类型
收费全文 | 104篇 |
免费 | 2篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 5篇 |
废物处理 | 10篇 |
环保管理 | 11篇 |
综合类 | 8篇 |
基础理论 | 11篇 |
环境理论 | 1篇 |
污染及防治 | 30篇 |
评价与监测 | 18篇 |
社会与环境 | 13篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 6篇 |
2022年 | 13篇 |
2021年 | 9篇 |
2020年 | 6篇 |
2019年 | 1篇 |
2018年 | 4篇 |
2017年 | 7篇 |
2016年 | 2篇 |
2015年 | 6篇 |
2014年 | 3篇 |
2013年 | 10篇 |
2012年 | 7篇 |
2011年 | 5篇 |
2010年 | 4篇 |
2009年 | 5篇 |
2008年 | 7篇 |
2007年 | 1篇 |
2006年 | 2篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1997年 | 1篇 |
1996年 | 3篇 |
1972年 | 1篇 |
排序方式: 共有108条查询结果,搜索用时 46 毫秒
71.
72.
Mohamad Nurzia Mazlan Mazween Mohamad Tawakkal Intan Syafinaz Mohamed Amin Talib Rosnita A. Kian Lau Kia Jawaid Mohammad 《Journal of Polymers and the Environment》2022,30(2):585-596
Journal of Polymers and the Environment - The development of active packaging for food applications have been increasingly favorable in publicity, industry, and research field, by attributing to... 相似文献
73.
Mohammad-Reza Zare Mohammad Mehdi Amin Saeedeh Hemmati-Borji Mahnaz Nikaeen Seyed Hamed Mirhosseini 《毒物与环境化学》2015,97(5):552-562
In this study, a traditional assay was modified to evaluate the effect of Hg, Cd, and Zn on the bacterial community of a sequencing batch reactor and activated sludge plants and heavy metal-resistant bacterial species were determined. After the isolation of metal-resistant bacteria, their 16S rRNA gene fragments were sequenced. The BLAST program was used to compare the resulting 16S rRNA sequences with those in GenBank database to identify the isolated bacterial species. Hg was found to be the most toxic metal for both bacterial communities investigated. Sequence batch reactor bacteria were comparatively more resistant to Hg, Cd, and Zn than those from activated sludge. The resistant strains were close to the members of genus Pseudomonas, Kocuria, Stenotrophomonas, Enterococcus, and Staphylococcus. The modified dehydrogenase enzyme assay seems to be simple, robust, and competent for evaluation of the impact of metals on bacterial activity. Sequencing batch reactor systems should be preferred over activated sludge when wastewaters containing hazardous metals are to be treated. 相似文献
74.
CO<Subscript>2</Subscript> emission and economic growth of Iran 总被引:1,自引:0,他引:1
Amin Yousefi-Sahzabi Kyuro Sasaki Hossein Yousefi Yuichi Sugai 《Mitigation and Adaptation Strategies for Global Change》2011,16(1):63-82
This research investigates the relationship between CO2 emission and economic growth of Iran over 14 years from 1994 to 2007 using a national panel data set. The statistical and
emission intensity methodologies are used for analyzing the data series. The study finds evidence supporting parameters which
conclude the stability of significant correlation between CO2 emission and economic development over time during the years under investigation in Iran. This relationship is investigated
and discussed for the energy sectors of the country as well. The results confirm that in all sectors except of agricultural,
there is a positive strong correlation between CO2 emission and economic growth throughout the study period. In most sectors, CO2 emission intensity (the emission per unit of GDP) doesn’t show increasing trends while the absolute emission is rapidly increasing
by the economic growth. 相似文献
75.
Al-Masri MS Al-Akel B Nashawani A Amin Y Khalifa KH Al-Ain F 《Journal of environmental radioactivity》2008,99(2):322-331
Transfer factors of (40)K, (238)U, (210)Pb, and (210)Po from soil to some agriculture crops in various locations in south of Syria (Dara'a and Assuwaydaa districts) have been determined. Soil and vegetable crops (green pepper, cucumber, tomato, and eggplant), legumes crops (lentil, chickpea, and broad bean), fruit trees (apple, grape, and olives) and cereals (barley and wheat) were collected and analyzed for (238)U, (210)Pb, and (210)Po. The results have shown that higher transfer factors (calculated as Bqkg(-1) dry wt. plant material per Bqkg(-1) dry wt. soil) for (210)Po, (210)Pb and (238)U were observed in vegetable leaves than fruits and cereals leaves; the highest values of transfer factor (TF) for (238)U were found to be 0.1 for straw of chickpea. Transfer factors for (210)Po varied between 2.8x10(-2) and 2 in fruits of eggplant and grain of barley, respectively. In addition, several parameters affecting transfer factors of the radionuclides were evaluated. The results can be considered as base values for TF of natural radionuclides in the region. 相似文献
76.
Ghufran Redzwan Maridah Mohd Amin Nur Nabiha Zulkarnain Mohd Radzi Abu Mansor Mohamad Suffian Mohamad Annuar Zul Ilham 《Journal of Material Cycles and Waste Management》2017,19(2):676-681
Biodiesel is commonly produced from vegetable oils, mostly edible and more expensive than petroleum diesel. By considering the cost of the conversion processes, cheap feedstock such as triglycerides and fatty acids (FA) extracted from early stage of food waste liquefaction has become a better choice than vegetable oils, as it could provide high yield of biodiesel without any compromise to food supply and other resources. In this study, FA from early stage of food waste liquefaction was extracted and tested for use as feedstock for biodiesel synthesis. The raw material was not pretreated but extraction was done by dry and wet methods. It was found that wet method could minimized the lost of short and medium-chained FA as well as reducing the number of steps required, thus, yielding higher amount of FA as feedstock. The effects of mixing, methanol ratio, reaction time and catalyst content were investigated for the acid-catalyzed esterification. The maximum biodiesel conversion obtained was 97.4 %. 相似文献
77.
Fazrul Razman Sulaiman Mohammad Syahirul Aiman Jusoh Amirul Amin Nasaruddin Noorzamzarina Sulaiman 《环境质量管理》2023,33(1):71-78
Heavy metals in suburban soils pose both indirect and direct health risks. This study assessed the concentrations of Cr, Zn, Pb, and Cd in Jengka (Malaysia) suburban soil and estimated the human health risk. Health risk assessment (HRA) was utilized to assess non-cancer and cancer risks. The concentrations of heavy metals increased in the following order: Cd < Zn < Cr < Pb. The heavy metals were found to be divided into two components using principal component analysis (PCA), with PC1 comprising Pb and Cd and PC2 containing Zn and Cr. PC1 originates from anthropogenic sources, while PC2 is often from mixed anthropogenic and natural sources. Despite having the lowest mean concentration, Cd was enriched based on the geo-accumulation index (Igeo) and enrichment factor (EF). Average hazard index values were below the acceptable threshold (HI < 1) for dermal and inhalation pathways suggesting a low non-cancer risk. Jengka suburban soil had total lifetime cancer risk values slightly higher than the acceptable threshold (1 × 10−5). Skin contact was the most prominent contributing exposure pathway for both non-carcinogenic and carcinogenic risks. This study suggests that heavy metal bioactivity levels be used to make a plausible HRA of heavy metal pollution in suburban soils. 相似文献
78.
Belkessa Nacer Serhane Youcef Bouzaza Abdelkrim Khezami Lotfi Assadi Aymen Amin 《Environmental science and pollution research international》2023,30(13):35745-35756
Environmental Science and Pollution Research - Photocatalytic oxidation (PCO) using a TiO2 catalyst is an effective technique to remove gaseous volatile organic compounds (VOCs). Herein, a... 相似文献
79.
Synthesis and characterization of Cu(II), Ni(II), and Zn(II) Schiff bases complexes resulted from the condensation of salicylaldehyde derivatives with o-amino phenol were discussed using elemental analysis (carbon, hydrogen, and nitrogen), molar conductance, magnetic measurements, mass spectra, and electronic spectra. The essential bands of infrared, 1HNMR, and UV-Vis spectra as well as thermogravimetric analysis corresponding to the active groups within the three ligands and their complexes were interpreted. The dehydration and decomposition processes of the [Cu(H2L1)(H2O)](OAc)2, [Ni(H2L1)(H2O)]SO4 · H2O, [Zn(H2L1)(H2O)]SO4 · H2O, [Cu(H2L2)(H2O)](OAc)2, [Ni(H2L2)(H2O)]SO4 · H2O, [Zn(H2L2)(H2O)]SO4 · 2H2O, [Cu(H2L3)(H2O)](OAc)2 · H2O, [Ni(H2L3)(H2O)]SO4 · 2H2O, [Zn(H2L3)(H2O)]SO4 complexes were studied thermodynamically using the integral method applying the Coats–Redfern and Horowitz–Metzger equations and the thermodynamic parameters were calculated. It was found from the elemental analysis and the thermal studies, that the ligand behaves as tridentate ligand forming chelates with 1 : 1 (metal : ligand) stoichiometrically. The molar conductance measurements of the complexes in dimethyl sulfoxide solvent indicate that the complexes have an electrolytic nature. The biological activities of the three ligands in comparison with metal(II) complexes were studied against different Gram positive and Gram negative bacteria. 相似文献
80.
Borhan Mansouri Mohsen Nowrouzi Masoumeh Ariyaee Amin Mishmast Nehi 《Chemistry and Ecology》2013,29(4):326-333
The objective of the present study was to investigate the levels of Cd, Pb, Co, and Cu, in A. chukar, A. griseogularis, and Columba livia, in order to (1) examine the age- and gender-related variation in trace metal accumulation and (2) to determine the significance between metal concentrations in the kidney, liver, and pectoral muscle. Mean concentrations of Cd and Pb in the kidney of A. chukar, A. griseogularis, and C. livia were 3.7, 4.1, and 3.9?µg/g and 15.9, 13.6, and 15.5?µg/g, respectively. In the liver, they were 4.8, 4.3, and 3.9?µg/g and 21.4, 21.3, and 21.1?µg/g, and in the pectoral muscle, 2.3, 2.3, and 2.2?µg/g and 7.1, 7.1, and 7.8?µg/g, respectively. Metal concentrations in three bird species were decreased in the sequence of liver?>?kidney?>?pectoral muscle. Trace metal concentrations in the three species were higher in females than in males. The mean concentrations of Cd in the kidney and liver were higher than the background levels, as well as Pb concentrations in the liver were higher than the toxic level. 相似文献