TROPICAL REHABILITATION FOREST CONTROL ON WATER CHEMISTRY PATTERN IN BINTULU SARAWAK MALAYSIA

Authors

  • Noraini Rosli Department of Forestry Science, Faculty of Agricultural Science and Forestry, Universiti Putra Malaysia Bintulu Sarawak Campus, Jalan Nyabau, 97008 Bintulu, Sarawak, Malaysia https://orcid.org/0000-0003-0292-4904
  • Geoffery James Gerusu ᵃDepartment of Forestry Science, Faculty of Agricultural Science and Forestry, Universiti Putra Malaysia Bintulu Sarawak Campus, Jalan Nyabau, 97008 Bintulu, Sarawak, Malaysia ᵇInstitut Ekosains Borneo, Universiti Putra Malaysia Bintulu Sarawak Campus, Jalan Nyabau, 97008 Bintulu, Sarawak, Malaysia
  • Roland Kueh Jui Heng ᵃDepartment of Forestry Science, Faculty of Agricultural Science and Forestry, Universiti Putra Malaysia Bintulu Sarawak Campus, Jalan Nyabau, 97008 Bintulu, Sarawak, Malaysia ᵇInstitut Ekosains Borneo, Universiti Putra Malaysia Bintulu Sarawak Campus, Jalan Nyabau, 97008 Bintulu, Sarawak, Malaysia

DOI:

https://doi.org/10.11113/jurnalteknologi.v84.17102

Keywords:

Water chemistry, water-catchment, heavy metals, acidic compounds, sulphur

Abstract

With rapid development in South East Asian countries, there is a risk of serious degradation of stream water quality in areas adjacent to developing city areas, where basic information on toxic heavy metals and acidic compounds (NO3- and SO42-) concentrations and spatiotemporal variation is still unknown in these areas. The concentrations of water quality parameters, major ions, and heavy metals were examined from twelve stream locations in a rehabilitation forest near a developing city having petroleum refinery facility in Bintulu, Sarawak, Malaysia. The concentrations of water quality parameters, major ions, and heavy metals were gathered and examined from twelve stream locations in a rehabilitation forest near a developing city with a petroleum refinery facility in Bintulu, Sarawak, Malaysia. Analyses suggested that there is no clear tendency that is detected in heavy metals and basic water properties (EC, DO, BOD, COD, alkalinity and pH) except for turbidity and total suspended solids, and major ion which were high during rainy seasons. Annual means of SO42-, NO3- and NH₄⁺ concentrations were 6.34, 1.05 and 0.24 mg/L. The concentration in K+, Mg2+, Na+ and Ca2+ were 0.61, 1.21, 2.82 and 1.12 mg/L during hot and rainy season. The mean concentration in almost all heavy metals (Mn, Fe, Cu, Zn) were less than 0.01 mg/L. The concentrations of water quality variables in all samples collected across the seasons except for turbidity that’s within the permissible limit by the World Health Organization (WHO) and National Water Quality Standards for Malaysia. -

Published

2021-11-21

How to Cite

Rosli, N., James Gerusu, G. ., & Jui Heng, R. K. . (2021). TROPICAL REHABILITATION FOREST CONTROL ON WATER CHEMISTRY PATTERN IN BINTULU SARAWAK MALAYSIA. Jurnal Teknologi, 84(1). https://doi.org/10.11113/jurnalteknologi.v84.17102

Issue

Section

Science and Engineering