Lee, Ju Young Yang, Jung-Seok Han, Mooyoung Choi, Jaeyoung 2024-01-20T20:03:21Z 2024-01-20T20:03:21Z 2021-09-02 2010-01 0048-9697 https://pubs.kist.re.kr/handle/201004/131846 Rainwater harvesting (RWH) offers considerable potential as an alternative water supply. In this study, all of the harvested rainwater samples met the requirements for grey water but not for drinking water. in terms of microbiological parameters, total coliform (TC) and Escherichia coli (EC) were measured in 91.6% and 72%, respectively, of harvested rainwater samples at levels exceeding the guidelines for drinking water, consistent with rainfall events. in the case of the reservoir water samples, TC and EC were detected in 94.4% and 85.2%. respectively, of the samples at levels exceeding the guidelines for drinking water. Both indicators gradually increased in summer and fall. The highest median values of both TC and EC were detected during the fall. Chemical parameters such as common anions and major cations as well as metal ions in harvested rainwater were within the acceptable ranges for drinking water. By contrast, Al shows a notable increase to over 200 mu g L-1 in the spring due to the intense periodic dust storms that can pass over the Gobi Desert in northern China. In terms of statistical analysis, the harvested rainwater quality showed that TC and EC exhibit high positive correlations with NO3- (rho(TC) = 0.786 and rho(EC) = 0.42) and PO4- (rho(TC) = 0.646 and rho(EC) = 0.653). which originally derive from catchment contamination, but strong negative correlations with Cl- (rho(TC) = -0.688 and rho(EC) = -0.484) and Na+ (rho(TC) = -0.469 and rho(EC) = -0.418), which originate from seawater. (C) 2009 Published by Elsevier B.V. English ELSEVIER SCIENCE BV Comparison of the microbiological and chemical characterization of harvested rainwater and reservoir water as alternative water resources Article 10.1016/j.scitotenv.2009.11.001 1 SCIENCE OF THE TOTAL ENVIRONMENT, v.408, no.4, pp.896 - 905 SCIENCE OF THE TOTAL ENVIRONMENT 408 4 896 905 scie scopus 000273928000025 2-s2.0-71849115877 Environmental Sciences Environmental Sciences & Ecology Article PARTICULATE MATTER ROOF CATCHMENTS QUALITY RUNOFF CHINA POLLUTION INDIA RAIN Rainwater harvesting (RWH) Statistical analysis Chemical parameters Microbiological parameters