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231.
Reddy Maddigapu P Minero C Maurino V Vione D Brigante M Mailhot G 《Chemosphere》2010,81(11):1401-1406
Anthraquinone-2-sulphonate (AQ2S) under UVA irradiation is able to oxidise nitrite to (·)NO(2) and to induce the nitration of phenol. The process involves the very fast reactions of the excited triplet state (3)AQ2S(*) and its 520-nm absorbing exciplex with water, at different time scales (ns and μs, respectively). Quinones are ubiquitous components of coloured dissolved organic matter (CDOM) in surface waters and AQ2S was adopted here as a proxy of CDOM. Using a recently developed model of surface-water photochemistry, we found that the oxidation of nitrite to (·)NO(2) by (3)CDOM(*) could be an important (·)NO(2) source in water bodies with high [NO(2)(-)] to [NO(3)(-)] ratio, for elevated values of column depth and NPOC. 相似文献
232.
Reddy Nimma Sathvik Lahoti Mukund 《Environmental science and pollution research international》2023,30(10):25356-25366
Environmental Science and Pollution Research - Building materials constitute a considerable portion of all the materials we use and about half the waste (in solid form) generated worldwide.... 相似文献
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The in vivo toxic effect of trivalent and hexavalent chromium (25 mg/L) on the renal and hepatic tissue ATPases of an edible teleost Anabas scandens was studied. In an exposure span of 30 days Na+-K+ ATPase activity exhibited a progressive inhibition in the kidney, but marked inhibition in Na+-K+ ATPase activity was observed in the liver. Mg2+ ATPase activity, however, exhibited an elevation on early exposures, with a later inhibition. 相似文献
236.
The influence of methyl farnesoate (MF) on testicular growth in the fresh water crab Oziotelplusa senex senex was studied. MF stimulated testicular growth as evidenced by increased testicular weight, testicular index and testicular
follicle diameter in MF injected crabs and provides evidence that MF acts as a male reproductive hormone in crustacea.
Received: 25 August 1998 / Accepted: 18 February 1999 相似文献
237.
Satyaparameshwar K Ravinder Reddy T Vijaya Kumar N 《Journal of environmental biology / Academy of Environmental Biology, India》2006,27(1):39-41
Sublethal toxicity of copper sulphate on carbohydrate metabolism was studied in selected tissues of freshwater mussel, Lamellidens marginalis. Levels of glycogen and pyruvic acid decreased while lactic acid showed an increase. Activities of LDH, SDH and MDH decreased while G-6-PDH activity increased. There appears to be a shift in the carbohydrate metabolism from aerobic to anaerobic type due to toxicity of copper. 相似文献
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This paper reports an investigation of the sublethal toxicity of cypermethrin (20 µg/l) on the levels of respiration and selected ions in tissues of carp (Cyprinus carpio L.). A significant decrease in O
2 consumption and ions was observed in gill, brain, liver and muscle tissues of cypermethrinexposed fish. The decreased rate of O
2 consumption may be due to inhibition of oxidative enzymes during cypermethrin stress. 相似文献
240.