This paper reports the histopathological responses of the gill, liver and tail muscle tissues in tadpoles of the Asian Common Toad Duttaphrynus melanostictus (Schneider, 1799) exposed to chlorpyrifos a common organophosphorus pesticide. Tadpoles of Gosner stages 24-26 were continuously exposed to low, mid and high (500, 1000 and 1500 μgl –1 ) concentrations of chlorpyrifos for two weeks. Histol...

Macromolecular SymposiaVolume 404, Issue 1 2270014 MastheadFree Access Macromol. Symp. 404 First published: 21 August 2022 https://doi.org/10.1002/masy.202270014AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text full-text accessPlease review our Terms and Conditions of Use check box below share version article.I have read accept t...

Indian flying barb (Esomus danricus) was exposed to sublethal concentrations of 636.3, 63.6 and 6.3 μgl-1 Cadmium for 28 days and intestinal histopathology was observed by light microscopy after staining with Haematoxylin-Eosine. Exposed fishes showed severe to mild superficial erosion of mucosa, dense lamina propria, chronic inflammatory cell infiltration as well as vacuolation. With the incre...

-Trichodesmium is a filamentous cyanobacteria which forms dense blooms along the west coast of India. These are high biomass blooms which are mostly surface floating. The chlorophyll a content of water crossed >100 μgl -1 during active bloom and hence was ideal for the detection by space. Besides the Arabian Sea, the Lakshadweep Sea, the Andaman Sea and the Bay of Bengal are also well known sit...

Cloud point extraction (CPE) has been used for the preconcentration of cadmium, after the formation of a complex with 1, 5-bis(di-2-pyridylmethylene) thiocarbonohydrazide (DPTH), and further determination by flame atomic absorption spectrometry (FAAS) using Triton X-114 as surfactant. The main factors affecting the CPE, such as concentration of Triton X-114 and DPTH, pH, equilibration temperatu...

Terms and conditions of current drinking water quality standards, including reducing the maximum arsenic concentration from 50 μgl-1 to 10 μgl-1 and predicted stricter standards in future, reveals the necessity for development of new technologies. This study aimed to prepare and evaluate a new nanocomposite membrane using graphene oxide (GO) thin layer to remove arsenic (v) from water. To fabri...

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19 INITIAL INVESTIGATION OF ANALYTICAL EXTRACTION TECHNIQUES FOR THE DETERMINATION OF BIOAVAILABILITY OF PESTICIDES IN SOIL B.K. Kramer, P.B. Ryan, and D.L. MacIntosh Department of Chemistry, Emory University, Atlanta, GA 30322; Phone: (404)727-9259; Fax: (404)727-8744. Rollins School of Public Health, Emory University, Atlanta, GA 30322; Phone: (404)727-3826; Fax: (404)727-8744. Environmental ...

The Polar Regions have long been recognized as important sinks for the aerosol, including mercury derived from natural and anthropogenic sources at lower latitudes. The volatile metals like Hg and Pb introduce to atmosphere mostly through burning of fossil fuel. Generally, the distribution of mercury in environmental media is related to pH, oxygen content, organic matter, reducing agents and mi...