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321.
Furlan CM Moraes RM Bulbovas P Sanz MJ Domingos M Salatino A 《Environmental pollution (Barking, Essex : 1987)》2008,152(2):361-365
Tibouchina pulchra saplings were exposed to carbon filtered air (CF), ambient non-filtered air (NF) and ambient non-filtered air+40 ppb ozone (NF+O3) 8 h per day during two months. The AOT40 values at the end of the experiment were 48, 910 and 12,895 ppb h(-1), respectively, for the three treatments. After 25 days of exposure (AOT40=3871 ppb h(-1)), interveinal red stippling appeared in plants in the NF+O3 chamber. In the NF chamber, symptoms were observed only after 60 days of exposure (AOT40=910 ppb h(-1)). After 60 days, injured leaves per plant corresponded to 19% in NF+O3 and 1% in the NF treatment; and the average leaf area injured was 7% within the NF+O3 and 0.2% within the NF treatment. The extent of leaf area injured (leaf injury index) was mostly explained by the accumulated exposure of ozone (r2=0.89; p<0.05). 相似文献
322.
Cerdeira AL Desouza MD Queiroz SC Ferracini VL Bolonhezi D Gomes MA Rosa MA Balderrama O Rampazzo P Queiroz RH Neto CF Matallo MB 《Journal of environmental science and health. Part. B》2007,42(6):635-639
This study was undertaken to evaluate the degradation and mobility of the herbicide tebuthiuron (N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N'-dimethylurea) in soil under field conditions, and its potential for leaching and groundwater contamination. A watershed, Espraiado, located over a recharge area in Brazil, was chosen for soil and water studies. At Espraiado, water samples were collected from seven wells at intervals of three months from March 2004 to June 2006 and analyzed for tebuthiuron. Other samples were taken from city wells located outside of the recharge area. To assess the potential movement to the aquifer, tebuthiuron was also applied to trial plots at the recommended label rate of 1.0 kg/ha a.i. in May of 2004, with and without sugarcane coverage, on sandy soil. Soil samples were collected during the years of 2004 and 2005, at depths intervals of 20 cm from soil surface down to 120 cm and analyzed for tebuthiuron at zero, 3, 30, 60, 90, 120, 150, 180, 240, and 300 days after application. There was no clear effect of sugarcane coverage on the tebuthiuron degradation in soils, but it moved faster into the soil where there was no cover. After 180 days there were no measurable residues in the soil, and tebuthiuron was not found below 40 cm depth in any time. Tebuthiuron had a half-life of 20 days under those conditions. No tebuthiuron residue was found in ground water samples at any sampling time. 相似文献
323.
Brandao R. Edwards D. J. Melo A. C. S. Macedo A. N. 《Journal of Material Cycles and Waste Management》2023,25(4):2245-2261
Journal of Material Cycles and Waste Management - Construction and demolition waste (CDW) is an environmental problem that affects all regions of the world. Particularly in the Brazilian Amazon... 相似文献
324.
de Castro Tainara Rigotti de Macedo Dayana Carla de Genaro Chiroli Daiane Maria da Silva Robson Couto Tebcherani Sergio Mazurek 《Journal of Polymers and the Environment》2022,30(3):810-832
Journal of Polymers and the Environment - Synthetic plastics generate major problems in landfills after their consumption for occupying high volumes and difficult the decomposition of other organic... 相似文献
325.
Sverchkov Ivan Chukaeva Mariia Matveeva Vera 《Environmental science and pollution research international》2022,29(29):44042-44053
Environmental Science and Pollution Research - The article presents the results of experimental studies performed for the comparative analysis of factors affecting the concentration of the main gas... 相似文献
326.
Journal of Material Cycles and Waste Management - Poultry meat production and consumption face several challenges under economic, social and environmental perspectives, and increasing concerns are... 相似文献