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Preliminary Studies of the Effects of Dichromate Ion On Survival and Oxygen Consumption of Daphnia Pulex (L.)

Preliminary Studies of the Effects of Dichromate Ion On Survival and Oxygen Consumption of... PRELIMINARY STUDIES OF THE EFFECTS OF DICHROMATE ION ON SURVIVAL AND OXYGEN CONSUMPTION OF DAPHNIA PULEX (L.) BY CAROL A. SHERR 1) and KENNETH B. ARMITAGE Department of Physiology and Cell Biology University of Kansas, Lawrence, Kansas, U.S.A. . INTRODUCTION Hexavalent chromium compounds (chromates and dichromates) are utilized in many industries, especially metal plating, anodyzing aluminium, leather tanning, and manufacture of such products as paints, dyes, explosives, ceramics, and paper (Besselievre, 1969; McKee & Wolf, 1963). In addition, the resistance of di- chromate to corrosion makes it an important addition to cooling water in many industries. Because hexavalent chromium occurs in many industrial effluents, its effects on organisms is of interest. The USPHS Drinking Water Standards of 1946 and 1962 set a mandatory limit of 0.05 mg/l for hexavalent chromium (McKee & Wolf, 1963). Although the standard is quite low compared to toxic levels for mammals and fish (Mertz, 1969), microcrustaceans are sensitive to extremely low levels of hexavalent chromium, and may not be protected by present standards. Because microcrusta- ceans form an essential link in the aquatic food chain, both as primary consumers (usually) and as prey for a wide variety of fish and other secondary consumers, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Preliminary Studies of the Effects of Dichromate Ion On Survival and Oxygen Consumption of Daphnia Pulex (L.)

Crustaceana , Volume 25 (1): 51 – Jan 1, 1973

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Publisher
Brill
Copyright
© 1973 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
DOI
10.1163/156854073X00489
Publisher site
See Article on Publisher Site

Abstract

PRELIMINARY STUDIES OF THE EFFECTS OF DICHROMATE ION ON SURVIVAL AND OXYGEN CONSUMPTION OF DAPHNIA PULEX (L.) BY CAROL A. SHERR 1) and KENNETH B. ARMITAGE Department of Physiology and Cell Biology University of Kansas, Lawrence, Kansas, U.S.A. . INTRODUCTION Hexavalent chromium compounds (chromates and dichromates) are utilized in many industries, especially metal plating, anodyzing aluminium, leather tanning, and manufacture of such products as paints, dyes, explosives, ceramics, and paper (Besselievre, 1969; McKee & Wolf, 1963). In addition, the resistance of di- chromate to corrosion makes it an important addition to cooling water in many industries. Because hexavalent chromium occurs in many industrial effluents, its effects on organisms is of interest. The USPHS Drinking Water Standards of 1946 and 1962 set a mandatory limit of 0.05 mg/l for hexavalent chromium (McKee & Wolf, 1963). Although the standard is quite low compared to toxic levels for mammals and fish (Mertz, 1969), microcrustaceans are sensitive to extremely low levels of hexavalent chromium, and may not be protected by present standards. Because microcrusta- ceans form an essential link in the aquatic food chain, both as primary consumers (usually) and as prey for a wide variety of fish and other secondary consumers,

Journal

CrustaceanaBrill

Published: Jan 1, 1973

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