278
S. Alfi, Y. Argaman and G. Shelef
(2) A laboratory test for L was combined with the data of the probe measurements "in
situ" in order to overcome the limitations of the accuracy of the meters.
The promising results from this modified method could be a good instrument for the
prediction of D.O. concentration levels and a tool for the pollution control of the
Alexander Stream.
ACKNOWLEDGEMENTS
The sincere thanks of the authors are due to Mr. M. Fleiszer, District Sanitary Engineer
of the Central District in the Israeli Ministry of Health, for kindly furnishing the
necessary facilities for the research.
Special acknowledgement is due to Mrs. E. Bloch and Mr. R. Pasmanter for their help
in laboratory tests and computer programming. Special thanks to Mr. J.M. Symons from
the Environment Protection Agency, U.S.A., for his advice and kind assistance.
The research on which this paper is based was supported by the Israeli Ministry of
Health and the Technion, Technologic Institute of Israel.
REFERENCES
1. STREETER, H.W. and PHELPS, E.B., "A Study of the Pollution and Natural Purification of the
Ohio River", P.H.S. Bull. 146, USPHS (1925).
2. O'CONNELL, R.L. and THOMAS, N.A., "Effect of Benthic Algae on Stream Dissolved Oxygen",
Journal S.E.D. (SA 3) p.l (1965).
3. SYMONS, J.M. et al., "Management and Measurements of D.O. in Impoundments", Journal
S.E.D. (SA6)p.l81 (1967).
4. Report on the Sanitary Condition of the Alexander Stream, Central District Office, Ministry of
Health, Ramlah (1971) (in Hebrew).
S. Alfi, Y. Argaman and G. Shelef
(2) A laboratory test for L was combined with the data of the probe measurements "in
situ" in order to overcome the limitations of the accuracy of the meters.
The promising results from this modified method could be a good instrument for the
prediction of D.O. concentration levels and a tool for the pollution control of the
Alexander Stream.
ACKNOWLEDGEMENTS
The sincere thanks of the authors are due to Mr. M. Fleiszer, District Sanitary Engineer
of the Central District in the Israeli Ministry of Health, for kindly furnishing the
necessary facilities for the research.
Special acknowledgement is due to Mrs. E. Bloch and Mr. R. Pasmanter for their help
in laboratory tests and computer programming. Special thanks to Mr. J.M. Symons from
the Environment Protection Agency, U.S.A., for his advice and kind assistance.
The research on which this paper is based was supported by the Israeli Ministry of
Health and the Technion, Technologic Institute of Israel.
REFERENCES
1. STREETER, H.W. and PHELPS, E.B., "A Study of the Pollution and Natural Purification of the
Ohio River", P.H.S. Bull. 146, USPHS (1925).
2. O'CONNELL, R.L. and THOMAS, N.A., "Effect of Benthic Algae on Stream Dissolved Oxygen",
Journal S.E.D. (SA 3) p.l (1965).
3. SYMONS, J.M. et al., "Management and Measurements of D.O. in Impoundments", Journal
S.E.D. (SA6)p.l81 (1967).
4. Report on the Sanitary Condition of the Alexander Stream, Central District Office, Ministry of
Health, Ramlah (1971) (in Hebrew).