Assessment of rainwater quality from rainwater harvesting systems in Ontario, Canada

2009 ◽  
Vol 58 (2) ◽  
pp. 117-134 ◽  
Author(s):  
Christopher Despins ◽  
Khosrow Farahbakhsh ◽  
Chantelle Leidl
2009 ◽  
Vol 8 (2) ◽  
pp. 334-345 ◽  
Author(s):  
David Baguma ◽  
Willibald Loiskandl ◽  
Ika Darnhofer ◽  
Helmut Jung ◽  
Michael Hauser

Given the possibility of waterborne diseases caused by inappropriate rainwater harvesting systems, a survey was conducted in Uganda to assess existing knowledge of both physical and non-physical measures that safeguard harvested rainwater. Households who had received rainwater tanks were assessed on issues related to harvested rainwater quality. The study shows that 84% of respondents were aware of various sources of rainwater contamination, but only 5% were aware that they needed to adjust use of rainwater, depending on whether they cleaned the tank or not. Most of the respondents were not aware that gutter cleaning was necessary to improve water quality. Indeed, as the water from the collection surface is channelled through gutters, a number of measures need to be taken to control the entry of contaminations and subsequent growth of pathogens in the tank, e.g. first flush diverts, installation of filters, chemical use and mesh cleaning. The majority, however, did not take adequate care of the gutters and this impacts on health and social livelihood. Overall, the findings emphasize the need to provide more information to households when installing water harvesting tanks to ensure that the harvested rainwater is of high quality.


2015 ◽  
Vol 15 (5) ◽  
pp. 1019-1026
Author(s):  
Nick D. Wang ◽  
Jhy-Chern Liu

This study aimed to investigate the effects of typhoons and dust storms on harvested rainwater quality. Rainwater samples were collected from the rainwater harvesting systems in northern Taiwan between September 2010 and April 2013. There were five typhoons and one dust storm that hit Taiwan during this period. Harvested rainwater was analyzed, including pH, electrical conductivity, turbidity, alkalinity, total organic carbon (TOC), acute biotoxicity test, and concentration of 13 metals and three anions. Results of harvested rainwater of the dust storm showed it had higher pH, turbidity, TOC, Na, Mg, Ca, Cl−, NO3− and SO42− than normal rainwater. Conversely, due to strong winds and dilution effect, most of the ion concentrations in harvested rainwater during typhoons were lower than in normal rainwater. In addition, biotoxicity in harvested rainwater during the dust storm and typhoons was not significantly different from that of normal rainwater.


2021 ◽  
Vol 147 (10) ◽  
pp. 04021061
Author(s):  
Mary Semaan ◽  
Susan D. Day ◽  
Michael Garvin ◽  
Naren Ramakrishnan ◽  
Annie Pearce

2015 ◽  
Vol 529 ◽  
pp. 91-100 ◽  
Author(s):  
Luís F. Sanches Fernandes ◽  
Daniela P.S. Terêncio ◽  
Fernando A.L. Pacheco

2016 ◽  
Vol 30 (12) ◽  
pp. 4415-4428 ◽  
Author(s):  
Suzanne Dallman ◽  
Anita M. Chaudhry ◽  
Misgana K. Muleta ◽  
Juneseok Lee

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