Water Quality of Roof Runoff in Sub-urban Malaysia. | [Asian Journal of Agriculture and Biology • 2018]

Author(s):

1. Siti Nadzifah Ghazali: Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Pahang, 26400 Jengka, Pahang, Malaysia: Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia

2. Fazrul Razman Sulaiman: Faculty of Applied Sciences, Universiti Teknologi MARA Cawangan Pahang, 26400 Jengka, Pahang, Malaysia

Abstract:

The purpose of this study is to investigate the composition of roof runoff pollutants and to determine the relationships between pollutants and seasons (wet and dry) from two commonly used roof types in Jengka, Pahang. Rainwater was collected from galvanized and ceramic roof runoff. The sampling regime was done in two different seasons; between November 2014- February 2015 (wet) and March-May 2015 (dry). A total of 60 rainwater samples were analysed for temperature, pH, EC, DO and selected heavy metals (Fe and Zn). Zn and Fe are higher in galvanized roof (Zn: 0.05 ± 0.11 mg/L, Fe: 0.06 ± 0.13 mg/L) compare to those in ceramic roof (Zn: 0.001 ± 0.00 mg/L, Fe: 0.01 ± 0.02 mg/L). There were no significant differences of metal elements found between wet and dry seasons (p>0.05). The concentrations of metal elements in the harvested rainwater are lower than the permitted heavy metal concentration limitation if to be used as drinking water. All water quality parameters from galvanized and ceramic roofs runoff in this study matched the drinking water guidelines proposed by the Ministry of Health, Malaysia and safe to be used for the domestic purposes.

Page(s): 125-128

DOI: DOI not available

Published: Journal: Asian Journal of Agriculture and Biology, Volume: 0, Issue: S1, Year: 2018

Keywords:

heavy metal , Water quality , harvested rainwater , Runoff water

References:

[1] Che-AniA,ShaariN,SairiA, 2009.Rainwater harvesting as an alternative water supply in the future,Eur. J. Sci. Res 34 132 -140

[2] FarrenyR,Morales-PinzónT,GuisasolaA,TayàC,RieradevallJ,GabarrellX, 2011.Roof selection for rainwater harvesting: quantity and quality assessments in Spain,Water Res 45 3245 -54

[3] GwenziW,DunjanaN,PisaC,TauroT,NyamadzawoG, 2015.Water quality and public health risks associated with roof rainwater harvesting systems for potable supply: review and perspectives,Sustain. Water Qual. Ecol 6 107 -118

[4] HustonR,ChanYC,GardnerT,ShawG,ChapmanH, 2009.Characterisation of atmospheric deposition as a source of contaminants in urban rainwater tanks,Water Res 43 1630 -40

[5] 2014.-water-quality-standard.html,Retrieved September 2 -

[6] RazzaghmaneshM,BeechamS,KazemiF, 2014.Impact of green roofs on stormwater quality in a South Australian urban environment,Sci. Total Environ 651 -659

[7] SulaimanFR,BrimblecombeP,GrossiCM, 2009.Mobilization and loss of elements from roofing tiles,Environ. Geol 58 795 -801

[8] SulaimanFR,BrimblecombeP,GrossiCM, 2016.Mobilisation of trace elements on roofing tiles,Indoor Built Environ 25 329 -339

[9] WangH,QinJ,HuY, 2017.Are green roofs a source or sink of runoff pollutants? Ecol, 107 65 -70

[10] WongCL,VennekerR,UhlenbrookS,JamilABM,ZhouY, 2009.Variability of rainfall in Peninsular Malaysia,Hydrol. Earth Syst. Sci. Discuss 6 5471 -5503

[11] ZhangQ,WangX,HouP,WanW,LiR,RenY,OuyangZ, 2014.Quality and seasonal variation of rainwater harvested from concrete, asphalt, ceramic tile and green roofs in Chongqing, China,J. Environ. Manage 132 178 -87

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