Rainwater Quality Disparities Across Malaysian Peninsula Sites

This research describes the physicochemical quality of harvested rainwater at four distinct locations in Peninsula Malaysia. The evaluation of rainwater quality across different geographic areas aims to provide valuable insights into potential variations and trends in rainwater quality to reduce wat...

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Main Authors: Uddin Md.H., Rokonuzzaman Md., Nur-E-alam M., M.soudagar M.E., Mohamed H.B., Amin N.
Other Authors: 59322395100
Format: Article
Published: River Publishers 2025
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author Uddin Md.H.
Rokonuzzaman Md.
Nur-E-alam M.
M.soudagar M.E.
Mohamed H.B.
Amin N.
author2 59322395100
author_facet 59322395100
Uddin Md.H.
Rokonuzzaman Md.
Nur-E-alam M.
M.soudagar M.E.
Mohamed H.B.
Amin N.
author_sort Uddin Md.H.
building UNITEN Library
collection Institutional Repository
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
continent Asia
country Malaysia
description This research describes the physicochemical quality of harvested rainwater at four distinct locations in Peninsula Malaysia. The evaluation of rainwater quality across different geographic areas aims to provide valuable insights into potential variations and trends in rainwater quality to reduce water demand globally. This analysis is conducted to determine seven properties, namely ammoniacal nitrogen, biochemical oxygen demand (BOD5), chemical oxygen demand (COD), dissolved oxygen (DO), pH, total dissolved solids (TDS), and turbidity. The results demonstrate that the quality of harvested rainwater meets the raw water quality standards set by the World Health Organization (WHO) and the National Water Quality Standards for Malaysia (NWQSM), indicating good quality rainwater in Malaysia. However, the COD for rainwater in all locations exceeded the limit, with a range of 14.1 to 29.7 mg/L, while the maximum limit for COD set by WHO is 10 mg/L, and according to NWQSM standards, it is 10-100 mg/L. The average pH of the collected rainwater is acidic ranged from 4.7 to 5.56. BOD5 for the collected rainwater is excellent; however, L2 has a slightly higher BOD5 at 6.5 mg/L, whereas the recommended limit by WHO is 6 mg/L, and the NWQSM standard suggests a range of 1-12 mg/L, with a standard limit of 5-7 mg/L. Nevertheless, DO levels ranged from 7.71 to 7.76 mg/L, indicating an ambient gas concentration in the rainwater. The collected rainwater can be used for portable purposes, gardening, smart farming, and toilet flushing. 2024 River Publishers. ? 2024 River Publishers. All rights reserved.
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spelling my.uniten.dspace-369712025-03-03T15:46:13Z Rainwater Quality Disparities Across Malaysian Peninsula Sites Uddin Md.H. Rokonuzzaman Md. Nur-E-alam M. M.soudagar M.E. Mohamed H.B. Amin N. 59322395100 57190566039 57197752581 59417772000 57136356100 7102424614 This research describes the physicochemical quality of harvested rainwater at four distinct locations in Peninsula Malaysia. The evaluation of rainwater quality across different geographic areas aims to provide valuable insights into potential variations and trends in rainwater quality to reduce water demand globally. This analysis is conducted to determine seven properties, namely ammoniacal nitrogen, biochemical oxygen demand (BOD5), chemical oxygen demand (COD), dissolved oxygen (DO), pH, total dissolved solids (TDS), and turbidity. The results demonstrate that the quality of harvested rainwater meets the raw water quality standards set by the World Health Organization (WHO) and the National Water Quality Standards for Malaysia (NWQSM), indicating good quality rainwater in Malaysia. However, the COD for rainwater in all locations exceeded the limit, with a range of 14.1 to 29.7 mg/L, while the maximum limit for COD set by WHO is 10 mg/L, and according to NWQSM standards, it is 10-100 mg/L. The average pH of the collected rainwater is acidic ranged from 4.7 to 5.56. BOD5 for the collected rainwater is excellent; however, L2 has a slightly higher BOD5 at 6.5 mg/L, whereas the recommended limit by WHO is 6 mg/L, and the NWQSM standard suggests a range of 1-12 mg/L, with a standard limit of 5-7 mg/L. Nevertheless, DO levels ranged from 7.71 to 7.76 mg/L, indicating an ambient gas concentration in the rainwater. The collected rainwater can be used for portable purposes, gardening, smart farming, and toilet flushing. 2024 River Publishers. ? 2024 River Publishers. All rights reserved. Final 2025-03-03T07:46:13Z 2025-03-03T07:46:13Z 2024 Article 10.13052/jgeu0975-1416.1223 2-s2.0-85212257838 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85212257838&doi=10.13052%2fjgeu0975-1416.1223&partnerID=40&md5=3b1169084582cbc573da6f5252d11403 https://irepository.uniten.edu.my/handle/123456789/36971 12 2 223 242 All Open Access; Hybrid Gold Open Access River Publishers Scopus
spellingShingle Uddin Md.H.
Rokonuzzaman Md.
Nur-E-alam M.
M.soudagar M.E.
Mohamed H.B.
Amin N.
Rainwater Quality Disparities Across Malaysian Peninsula Sites
title Rainwater Quality Disparities Across Malaysian Peninsula Sites
title_full Rainwater Quality Disparities Across Malaysian Peninsula Sites
title_fullStr Rainwater Quality Disparities Across Malaysian Peninsula Sites
title_full_unstemmed Rainwater Quality Disparities Across Malaysian Peninsula Sites
title_short Rainwater Quality Disparities Across Malaysian Peninsula Sites
title_sort rainwater quality disparities across malaysian peninsula sites
url_provider http://dspace.uniten.edu.my/