Physico-chemical assessment of water quality in recreational area of Lata Renyok and Lata Janggut in Kelantan,

The study was conducted to determine the physical and chemical parameters in Lata
Janggut and Lata Renyok which located in Kelantan. This study aims to identify the
differences in physical and chemical parameters of water quality in Lata Janggut and
Lata Renyok during the peak and off-peak seasons. Three sampling locations were
randomly chosen where the distance between the first points to the second point was
100 meters and followed with the next point. All water samples in each location were
taken six times on different days, where three times represent the peak season and the
remaining sampling days represent off peak season. A total of 108 water samples
were taken in both recreational areas throughout the study to analyze the ex-situ and
in-situ parameters such as temperature, turbidity, Total Dissolved Solid (TDS), pH,
Dissolved Oxygen (DO), Biological Oxygen Demand (BOD) and conductivity. The
ranges for the physico-chemical parameters reading during peak season were
26.73ºC-28.74ºC (temperature), 2.01NTU-2.73NTU (turbidity), 0.022mg/l-
0.026mg/l (TDS), 6.57-7.26 (pH), 5.51mg/l- 6.45mg/l (DO), 1.67mg/l-2.30mg/l
(BOD), 0.023mS/cm-0.041mS/cm (conductivity). Moreover, the ranges for the
physico-chemical parameters reading during off peak season were 24.63ºC-25.62ºC
(temperature), 1.45NTU-1.78NTU (turbidity), 0.022mg/l- 0.044mg/l (TDS), 6.89-
7.13 (pH), 6.21mg/l- 6.68mg/l (DO), 1.25mg/l-1.56mg/l (BOD), 0.025mS/cm-
0.044mS/cm (conductivity). The analysis of variance (ANOVA) and the Tukey
Pairwise Comparison showed that almost all of the water quality parameters
including temperature, turbidity, Total Dissolved Solid (TDS), pH, and Biochemical
Oxygen Demand (BOD) were slightly affected during peak season especially in Lata
Janggut. However, overall water quality in Lata Renyok and Lata Janggut still in safe
condition and suitable for any intended purpose according to the Interim National
Water Quality Standard (INWQS) of Malaysia. Therefore, continuous monitoring of
water quality in Lata Renyok and Lata Janggut are strongly needed to ensure the
level of water quality in permissible limit.