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ES&T brings you the new technology. These are the techniques to avoid contamination of air, water, and land. And it brings you up-to-the-minute information of the economics, laws, and feasibility of many of these new techniques. Utilizing the American Chemical Society's world-wide contacts, ES&T includes each month: Π Current government pollution

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ANALYTICAL CHEMISTRY, VOL. 45, NO. 8, JULY 1973 · 753 A