Nutrient and microbial water quality of the upper Ganga River, India: identification of pollution sources

Environmental Monitoring and Assessment
Michael J BowesH Gwyn Rees

Abstract

The Ganga River is facing mounting environmental pressures due to rapidly increasing human population, urbanisation, industrialisation and agricultural intensification, resulting in worsening water quality, ecological status and impacts on human health. A combined inorganic chemical, algal and bacterial survey (using flow cytometry and 16S rRNA gene sequencing) along the upper and middle Ganga (from the Himalayan foothills to Kanpur) was conducted under pre-monsoon conditions. The upper Ganga had total phosphorus (TP) and total dissolved nitrogen concentrations of less than 100 μg l-1 and 1.0 mg l-1, but water quality declined at Kannauj (TP = 420 μg l-1) due to major nutrient pollution inputs from human-impacted tributaries (principally the Ramganga and Kali Rivers). The phosphorus and nitrogen loads in these two tributaries and the Yamuna were dominated by soluble reactive phosphorus and ammonium, with high bacterial loads and large numbers of taxa indicative of pathogen and faecal organisms, strongly suggesting sewage pollution sources. The high nutrient concentrations, low flows, warm water and high solar radiation resulted in major algal blooms in the Kali and Ramganga, which greatly impacted the Ganga. Microbial communiti...Continue Reading

References

Oct 18, 2005·The Science of the Total Environment·Helen P JarviePaul J A Withers
Jul 6, 2006·Applied and Environmental Microbiology·T Z DeSantisG L Andersen
Nov 28, 2006·Journal of Hazardous Materials·Anil Kumar Misra, Ajai Mishra
Apr 5, 2008·Science·Hans W Paerl, Jef Huisman
Sep 7, 2011·Water Research·Hans W Paerl, Valerie J Paul
Nov 1, 2011·The Science of the Total Environment·M J BowesA C Singer
Oct 31, 2012·Environmental Science & Technology·Helen P JarvieLesley B Massey
May 1, 1995·Environmental Monitoring and Assessment·H JoshiN Puri
Dec 10, 2013·Water Research·S JouanneauG Thouand
Feb 11, 2014·Environmental Science. Processes & Impacts·Daniel S ReadAndrew S Whiteley
Sep 23, 2014·The ISME Journal·Daniel S ReadRobert I Griffiths
Feb 2, 2015·Environmental Monitoring and Assessment·Akriti AgarwalL K Thakur
May 7, 2016·Environmental Science. Processes & Impacts·Alan D TappinPaul J Worsfold
May 24, 2016·Nature Methods·Benjamin J CallahanSusan P Holmes
May 19, 2017·Bulletin of Environmental Contamination and Toxicology·Amita Yadav, Jitendra Pandey
Nov 2, 2017·Water Research·D G MilledgeP E Carbonneau
May 15, 2018·Frontiers in Plant Science·Matthew T O'HareMichael J Bowes
Oct 17, 2018·Environmental Microbiology·Si-Yu ZhangKonstantinos T Konstantinidis
Nov 6, 2018·Science·Tushaar ShahUma Lele
Dec 12, 2018·Frontiers in Microbiology·Olivia S HersheyHazel A Barton
May 28, 2019·Environmental Microbiology·Marie SimoninEmily S Bernhardt
Aug 7, 2019·Environmental Monitoring and Assessment·Ayesha MariyaNiraj Kumar

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