This book offers a comprehensive and accessible guide covering various aspects of trace metal contamination in abiotic and biotic matrices of an iconic Indian tropical mangrove wetland - Sundarban. Divided into nine chapters, the book begins by discussing the fundamental concepts of sources, accumulation rate and significance of trace metal speciation, along with the impact of multiple stressors on trace metal accumulation, taking into account both tourist activities and the exacerbating role of climate change. The second chapter presents a detailed account of the sampling strategy and preservation of research samples, followed by exhaustive information on sediment quality assessment and ecological risk, instrumental techniques in environmental chemical analyses, quality assurance and quality control, along with the Sediment Quality Guidelines (SQGs). Using raw data, the sediment quality assessment indices (e.g., pollution load index, index of geoaccumulation, Nemerow Pollution Load Index etc.) and conventional statistical analyses are worked out and interpreted precisely, allowing students to readily evaluate and interpret them. This is followed by chapters devoted to trace metal accumulation in sediments and benthic organisms, as well as acid-leachable and geochemical fractionation of trace metals in sediments. The book then focuses on chemical speciation of butylin and arsenic in sediments as well as macrozoobenthos (polychaetous annelids). Finally, potential positive role of the dominant mangrove Avicennia in sequestering trace metals from rhizosediments of Sundarban Wetland is elaborately discussed. This timely reference book provides a versatile and in-depth account for understanding the emerging problems of trace metal contamination - issues that are relevant for many countries around the globe.
The memoir of a slave girl coming of age during the Civil War. Afion recalls her lover, her friends, the war and her losses as she talks about growing up in Granny Moses' cabin on the creek, seeing her best friend taken away by wagon. At the age of nine the wagon comes for her, and she becomes a kitchen servant. Using her talent and ingenuity, Afion becomes the personal servant to the master's daughter. Her lover promises they will jump the broom when freedom comes, but he runs away and joins the Union Army. Afion does not know what freedom is. Her best friend Cookie tastes forbidden love when she falls in love with the master's son. But when fighting draws near the farm, Master Halloway abandons the plantation taking his family, their valuables and favorite servants. Afion is left behind. She fears the loss of the meager food supply, and when the sugar house and the smoke house are broken into, the food is stolen but not by Union soldiers.The Gazebo, a Civil War Memoir is one of the best historical books to date about growing up black during the Civil War.
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