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Updated: May 11, 2026

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
Published on: March 6, 2014
Impacts of changing atmospheric deposition chemistry on nitrogen and phosphorus loading to Ganga River (India)
Jitendra Pandey1, Anand V Singh, Ashima Singh
1Environmental Science Division, Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi 221005, India. jiten_pandey@rediffmail.com
Abstract:
Investigations on atmospheric deposition (AD) and water chemistry along a 35 km stretch of Ganga River indicated that although N:P stoichiometry of AD did not change, there were over 1.4-2.0 fold increase in AD-NO₃⁻, AD-NH₄⁺ and AD-PO₄³⁻ overtime. Concentration of dissolved inorganic-N (DIN) in river showed significant positive correlations with AD-NO₃⁻ and runoff DIN. Similarly, dissolved reactive-P (DRP) in river showed significant positive correlation with AD-PO₄³⁻ and runoff DRP. The study shows that AD has become an important source of N and P input to Ganga River.
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