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41.
Mariana Egler Claudio Antonio Gonçalves Egler Barbara Franz Maria Silvia Muylaert de Araujo Marcos Aurélio Vasconcelos de Freitas 《Regional Environmental Change》2013,13(2):263-271
In recent years, Amazonian deforestation has become a question of global concern. Deforestation in Amazon is a complex phenomenon in nature and has been related to traditional agriculture expansion. In this work, land use, socioeconomic and conservation indicators, combined with statistical analysis, were used to understand forces associated with patterns of deforestation. This approach was applied in Southern Brazilian Pre-Amazon in Mato Grosso State, which represents an extensive rain forest-savanna ecotone, located in the south border of Amazon biome. Based on data from the last two agricultural censuses (1995/1996–2006), we compared agricultural expansion in this area and Mato Grosso state. Results have shown that 85 % of state deforestation was concentrated in Southern Pre-Amazon and was closely related to increase in number of cattle and pasture area. PCA results pointed that population (92 %), number of cattle (86.5 %), pastures (84.2 %) and tractors (78.4 %) were variables with highest positive correlation to deforestation. It showed that GDP contributes to an individual axis and has a low correlation to deforestation (37.8 %). Conservation units and indigenous reserves also contribute to a single axis and were negatively correlated to temporary crops area. Results revealed a significant reduction in production and commercialization of extractive products in the region, revealing that the main, almost only conservation policy in Mato Grosso remains the creation of Special Areas. We suggest that further studies are necessary to screen development alternatives to simple cutting trees down. It is important to diversify strategies for deforestation control, and development aspects must be more seriously considered to reach a sustainable deforestation control policy. 相似文献
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Leite Marilaine Cristina Marques de Araujo Maycon Anderson da Silva de Paiva Wesller Camargos Liliane Santos Martins Aline Redondo 《Environmental science and pollution research international》2022,29(5):6900-6910
Environmental Science and Pollution Research - The indiscriminate use of fertilizers and chemical pesticides can lead to boron contamination of the soil. Decontamination in general is expensive and... 相似文献
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Kalra Sunishtha Banderwal Rittu Arora Kaushal Kumar Sandeep Singh Govind Chawla Pooja A. Behl Tapan Sehgal Aayush Singh Sukhbir Bhatia Saurabh Al-Harrasi Ahmed Aleya Lotfi Dhiman Anju 《Environmental science and pollution research international》2022,29(12):16786-16798
Environmental Science and Pollution Research - Traumatic brain injury (TBI) is a neurological disorder which represents a major health issue worldwide. It causes mortality and disability among all... 相似文献
44.
Pooja Ghosh Mihir Tanay Das Indu Shekhar Thakur 《Environmental science and pollution research international》2014,21(13):8084-8094
Landfill leachate has become a serious environmental concern because of the presence of many hazardous compounds which even at trace levels are a threat to human health and environment. Therefore, it is important to assess the toxicity of leachate generated and discharge it conforming to the safety standards. The present work examined the efficiency of an earlier reported Pseudomonas sp. strain ISTDF1 for detoxification of leachate collected from Okhla landfill site (New Delhi, India). GC-MS analysis performed after treatment showed the removal of compounds like alpha-limonene diepoxide, brominated dioxin-2-one, Bisphenol A, nitromusk, phthalate derivative, and nitrobenzene originally found in untreated leachate. ICP-AES analysis for heavy metals also showed reduction in concentrations of Zn, Cd, Cr, Fe, Ni, and Pb bringing them within the limit of safety discharge. Methyl tetrazolium (MTT) assay for cytotoxicity, alkaline comet assay for genotoxicity, and 7-ethoxyresorufin-O-deethylase (EROD) assay for dioxin-like behavior were carried out in human hepato-carcinoma cell line HepG2 to evaluate the toxic potential of treated and untreated leachates. The bacterium reduced toxicity as shown by 2.5-fold reduction of MTT EC50 value, 7-fold reduction in Olive Tail Moment, and 2.8-fold reduction in EROD induction after 240 h of bacterial treatment. 相似文献
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de Castro Medeiros Luciana de Alencar Feliphe Lacerda Souza Navoni Julio Alejandro de Araujo André Luis Calado do Amaral Viviane Souza 《Environmental science and pollution research international》2019,26(6):5316-5332
Environmental Science and Pollution Research - Chlorine is considered the most used chemical agent for water disinfection worldwide. However, water chlorination can lead to by-product generation... 相似文献
50.
Alejandra Serrano-Suárez Jordi Dellundé Humbert Salvadó Sílvia Cervero-Aragó Javier Méndez Oriol Canals Silvia Blanco Antoni Arcas Rosa Araujo 《Environmental science and pollution research international》2013,20(8):5534-5544
Hot water recirculation systems (HWRS) in hotels and nursing homes, which are common in countries such as Spain, have been related to outbreaks of legionellosis. To establish the relationships of microbial and physicochemical parameters, especially protozoa, with the occurrence of Legionella in HWRS, 231 samples from hotels and nursing homes were analysed for Legionella, protozoa, heterotrophic plate counts (HPC) at 22 and 37 °C, Pseudomonas, metals, temperature and others. Legionella pneumophila was the dominant species isolated, and 22 % were sg. 1. The sampling method became particularly important in order to define which factors were involved on the occurrence of Legionella. Results showed that the bacteria and the accompanying microbiota were more abundant in the first flush water whose temperature was lower. The bacteria occurred in those samples with high HPC and were inversely correlated with high temperatures. Multivariate regression showed that a concentration above 1?×?105?CFU/100 mL of HPC at 37 °C, Fe above 0.095 ppm and the presence of protozoa increased significantly the risk of Legionella colonization, while univariant regression showed that the presence of Cu above 0.76 ppm and temperature above 55 °C diminished it. Therefore, to reduce the risk associated with Legionella occurrence in HWRS these parameters should be taken into consideration. 相似文献