Water Quality Interaction with Alkaline Phosphatase in the Ganga River: Implications for River Health

Bulletin of Environmental Contamination and Toxicology
Amita Yadav, Jitendra Pandey

Abstract

Carbon, nitrogen and phosphorus inputs through atmospheric deposition, surface runoff and point sources were measured in the Ganga River along a gradient of increasing human pressure. Productivity variables (chlorophyll a, gross primary productivity, biogenic silica and autotrophic index) and heterotrophy (respiration, substrate induced respiration, biological oxygen demand and fluorescein diacetate hydrolysis) showed positive relationships with these inputs. Alkaline phosphatase (AP), however, showed an opposite trend. Because AP is negatively influenced by available P, and eutrophy generates a feedback on P fertilization, the study implies that the alkaline phosphatase can be used as a high quality criterion for assessing river health.

References

May 2, 2001·Water Research·J VollertsenP H Nielsen
Nov 1, 1979·Applied and Environmental Microbiology·G S SaylerM Silver
Jun 1, 1982·Applied and Environmental Microbiology·J Schnürer, T Rosswall
Dec 17, 2009·Nature·Robert L SinsabaughJennifer J Follstad Shah
Jun 1, 2012·Water and Environment Journal : the Journal·Rafaela SchineggerStefan Schmutz

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Citations

Jul 22, 2020·Environmental Monitoring and Assessment·Michael J BowesH Gwyn Rees
Mar 25, 2021·Archives of Environmental Contamination and Toxicology·Ekabal Siddiqui, Jitendra Pandey

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