RS Ambasht was Emeritus Professor, INSA Honorary Scientist, CSIR Emeritus and INSA Senior Scientist; and Professor and Head, Department of Botany, Banaras Hindu University, Varanasi. He taught ecology and environmental aspects for over 40 years, and was decorated with Birbal Sahni Gold Medal of IBS, Platinum Jubilee Lecture Award of ISCA, UGC-P, Saraswati National Award and Fellowships of the Indian National Science Academy and the National Academy of Sciences. He was on the board of the International Association of Ecology, secretary of ISTE, president of the National Institute of Ecology, and member of National Committee on Wetlands of the Environment Ministry. He wrote several books, book chapters and was editor of several prestigious publications.
<p style="margin-right: 0px; margin-bottom: 6px; margin-left: 0px; padding: 0px; color: rgb(33, 37, 41); font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; letter-spacing: 0.7px; text-align: justify;">It describes in detail water resources, storage, cycling, ecosystem function of marine, freshwater lakes, rivers and other wetlands, biological and physicochemical characterisations, kinds and causes of pollution and control devices. It also describes in detail the atmospheric factor, air pollution due to industrial, domestic and other sources, global changes, ozone depletion and UV-B enhancement effects and about air pollution control technologies. Soil pollution, problems of solid wastes, soil erosion and conservation, radioactive pollution, noise pollution, laws and international efforts on pollution controls are described in different chapters.</p><p style="margin-right: 0px; margin-bottom: 6px; margin-left: 0px; padding: 0px; color: rgb(33, 37, 41); font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji"; letter-spacing: 0.7px; text-align: justify;"><span style="margin: 0px; padding: 0px;">Important topics of current interest like biological magnification, eutro- phication, ecotoxicology bioremediation, waste-water treatment, rising levels of CO2, CFCs, methane and other greenhouse gases are described in detail.</span></p>
