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121.
本文研究了在自然状况下污水塘的净化作用及其效率,通过对总氮、总磷、COD_(Cr)和BOD_5等在进、出水中的含量与水温进行回归分析,建立了三者之间的相关性方程。同时讨论了水温对污水塘的自净效率的影响。 相似文献
122.
What are ecological guilds? Dilemma of guild concepts 总被引:1,自引:0,他引:1
123.
Škrbić Biljana D. Đurišić-Mladenović Nataša Tadić Đorđe J. Cvejanov Jelena Đ. 《Environmental science and pollution research international》2017,24(19):16148-16159
Environmental Science and Pollution Research - Contents of 16 polycyclic aromatic hydrocarbons were analyzed in 30 soil samples from 15 locations in Novi Sad, Serbia, assessing for the first time... 相似文献
124.
A better public perception and knowledge on land degradation increases the individual and collective responsibility in land use and land management. Based on interviews, this paper presents results of evaluation of public perception and attitude towards degrading phenomena in the central part of Romania, an area prone to geomorphologic processes, with different land uses and a high proportion of degraded land. The research reveals natural causes, improper land use, categories of land owned, socio-economic causes and involvement of institutions as key aspects of public perception. Our research could be useful in the identification and design of measures in regional planning to attract population in prevention, mitigation and rehabilitation actions on degraded land. 相似文献
125.
Tina Elersek Sara Milavec Maša Korošec Polona Brezovsek Noelia Negreira Bozo Zonja Miren López de Alda Damià Barceló Ester Heath Janez Ščančar Metka Filipič 《Environmental science and pollution research international》2016,23(15):14780-14790
The residues of antineoplastic drugs are considered as new and emerging pollutants in aquatic environments. Recent experiments showed relatively high toxicity of 5-fluorouracil (5-FU), imatinib mesylate (IM), etoposide (ET) and cisplatin (CP) that are currently among most widely used antineoplastic drugs, against phytoplankton species. In this study, we investigated the toxic potential of the mixture of 5-FU?+?IM?+?ET against green alga Pseudokirchneriella subcapitata and cyanobacterium Synechococcus leopoliensis, and the stability and sorption of these drugs to algal cells. Toxic potential of the mixture was predicted by the concepts of ‘concentration addition’ and ‘independent action’ and compared to the experimentally determined toxicity. In both test species, the measured toxicity of the mixture was at effects concentrations EC10–EC50 higher than the predicted, whereas at higher effect concentration (EC90), it was lower. In general, P. subcapitata was more sensitive than S. leopoliensis. The stability studies of the tested drugs during the experiment showed that 5-FU, IM and CP are relatively stable, whereas in the cultures exposed to ET, two transformation products with the same mass as ET but different retention time were detected. The measurements of the cell-linked concentrations of the tested compounds after 72 h exposure indicated that except for CP (1.9 % of the initial concentration), these drugs are not adsorbed or absorbed by algal cells. The results of this study showed that in alga and cyanobacteria exposure to the mixture of 5-FU?+?ET?+?IM, in particular at low effect concentration range, caused additive or synergistic effect on growth inhibition, and they suggest that single compound toxicity data are not sufficient for the proper toxicity prediction for aquatic primary producers. 相似文献
126.
127.
Jokić Goran Blažić Tanja Đurović-Pejčev Rada Đorđević Tijana Đedović Suzana Vukša Marina 《Environmental science and pollution research international》2017,24(22):18257-18262
Environmental Science and Pollution Research - Strong-smelling plant extracts, such as essential oils, have a variety of feeding effects on mammals. Considering current concerns over long-term... 相似文献
128.
Stojanović Branislav Janković Saša Đorđević Vesna Marjanović Sonja Vasilev Dragan Stojanović Zdenka Balaban Milica Antić Vesna 《Environmental science and pollution research international》2021,28(35):48330-48342
Environmental Science and Pollution Research - This work aimed to examine the influence of the storage period on the content of toxic elements (As, Cd, Hg, and Pb) in five types of canned meat... 相似文献
129.
Distribution of natural radionuclides in surface soils in the vicinity of abandoned uranium mines in Serbia 总被引:1,自引:0,他引:1
Milan Momčilović Jovan Kovačević Milan Tanić Milan Đorđević Goran Bačić Snežana Dragović 《Environmental monitoring and assessment》2013,185(2):1319-1329
The activity concentrations of natural radionuclides in soils from the area affected by uranium mining at Stara Planina Mountain in Serbia were studied and compared with the results obtained from an area with no mining activities (background area). In the affected area, the activity concentrations ranged from 1.75 to 19.2 mg kg?1 for uranium and from 1.57 to 26.9 mg kg?1 for thorium which is several-fold higher than those in the background area. The Th/U, K/U, and K/Th activity ratios were also determined and compared with data from similar studies worldwide. External gamma dose rate in the air due to uranium, thorium, and potassium at 1 m above ground level in the area affected by uranium mining was found to be 91.3 nGy h?1, i.e., about two-fold higher than that in background area. The results of this preliminary study indicate the importance of radiological evaluation of the area and implementation of remedial measures in order to prevent further dispersion of radionuclides in the environment. 相似文献
130.
Onifade Stephen Taiwo Alola Andrew Adewale Erdoğan Savaş Acet Hakan 《Environmental science and pollution research international》2021,28(14):17158-17169
Environmental Science and Pollution Research - More than any other nations, the crude oil–exporting countries and especially the Organization of the Petroleum Exporting Countries (OPEC) are... 相似文献